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volume of carbon tetrachloride would be produced by this reaction if 8.91 cm3 of methane were consumed?
Also, be sure your answer has a unit symbol, and is rounded to the correct number of significant digits.

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075*t2-.2672*t+14.8 where t is year -1940.
Answer the following questions:
What is the expected MPG in 2025?
How about 2050?
Is this a valid function?
Is there a top end to MPG?

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in 98.70 s. Under the same conditions, 1.738 mol of another gas with molar mass 40.10 g mol-1 takes 82.60 s to effuse. What is the molar mass of yorksinite? Report your answer to one decimal place. Do not enter units.

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irs
during primary recovery. This problem explores some aspects of this behavior.
Consider the expansion of methane from 300 bars to 50 bars at a constant temperature of 40 C (313 K).
Methane obeys the following equation of state
V =(RT/P)+C+(D/T)
where C = 31 cm3/mol, D = -693cm3K/mole, and R = 83.14bar cm3/mole K. Note that the units of
energy are bar-cm3/mole in this problem. Report your answer in bar-cm3/mole
(a) What is the change in enthalpy during the expansion
(b) What is the change in internal energy?
(c) What is the heat removed?
(d) How much work does the system do during the expansion?

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nts pay fees in addition to their tuition.
Using the code provided below as a starting point, write a conditional statement that determines how much a student will pay in fees.
• Students registered for 1 – 4 hours pay $843 in student fees.
• Students enrolled in 5 or more hours pay $993 in student fees.
The program should also display a message to students who have not enrolled in any classes: “You are not enrolled in any classes right now.”
NOTE: You must use the variables included in the code snippet get credit for this question.
import java.util.Scanner;
class Main {
public static void main(String[] args) {
int creditHours;
int fees = 0;
Scanner myScanner = new Scanner(System.in);
System.out.print("Please enter the number of credit hours you are taking this term: "); creditHours = myScanner.nextInt();
myScanner.close();
//YOUR CODE GOES HERE
} }
Break the Problem Down
Answer the following questions, then use the information to write your code.
What are the inputs in the pseudocode above? (INPUT)
What are we storing in the pseudocode above? (MEMORY)
What calculations are needed? (PROCESSES)
What needs to be displayed to the user?
(OUTPUT)
How many conditions are there in your problem statement?
What are they?
Does something need to happen if the condition(s) are not met?
What type of conditional statement do you need?
Solution in Java
Problem 2: Block Tuition
The cost of KSU’s tuition is determined by the number of credit hours a student enrolls in.
Using the chart below, write a conditional statement (ONLY) that sets the value of a tuition variable to what that student will owe.
NOTE: For this problem you can assume that all students are enrolled in a minimum of 12 hours.
Number of Credit Hours 12
13
14
15 or more
Cost (in USD) $2224 $2410 $2595 $2718
Break the Problem Down
Answer the following questions, then use the information to write your code.
What do we need to store? (MEMORY)
What are the inputs in the problem statement above? (INPUT)
What calculations are needed? (PROCESSES)
What needs to be displayed to the user?
(OUTPUT)
How many conditions are there in your problem statement?
What are they?
Does something need to happen if the condition(s) are not met?
What type of conditional statement do you need?
Solution in Java
Problem 3: Class Standing
Undergraduate students will be classified based on the number of earned institutional hours.
• Freshman:
• Sophomore:
• Junior:
• Senior:
0 - 29 hours
30 - 59 hours 60 - 89 hours
90 hours or more
Write a complete program that prompts the user for the number of credit hours they have completed. Write a conditional statement that prints out their class standing based on the information they provided.
Sample Output
Break the Problem Down
Answer the following questions, then use the information to write your code.
What do we need to store? (MEMORY)
Please enter the number of credit hours you have earned: 29 You are a freshman.
What are the inputs in the problem statement above? (INPUT)
What calculations are needed? (PROCESSES)
What needs to be displayed to the user?
(OUTPUT)
How many conditions are there in your problem statement?
What are they?
Does something need to happen if the condition(s) are not met?
What type of conditional statement do you need?
Solution in Java
Problem 4: Maximum Course Load
KSU’s policy on maximum course loads during the academic year is as follows:
A student in good standing may register for up to 18 hours. The Registrar may approve up to 21 hours for students with an institutional GPA of 3.5 or higher. Students
Write a complete program that prompts the user for the number of credit hours they have signed up for. Write the necessary conditional statement(s) to address the stipulations in KSU’s policy. Once the maximum number of hours is determined, display a message to the user that states “You may enroll in X credit hours this semester.” where X is the number of credit hours determined by your program.
Sample Output
Break the Problem Down
Answer the following questions, then use the information to write your code.
What do we need to store? (MEMORY)
Please enter your GPA: 3.75
You may enroll in up to 21 credit hours this semester.
What are the inputs in the problem statement above? (INPUT)
What calculations are needed? (PROCESSES)
What needs to be displayed to the user?
(OUTPUT)
How many conditions are there in your problem statement?
What are they?
Does something need to happen if the condition(s) are not met?
What type of conditional statement do you need?
Solution in Java
Problem 5: First-Year Seminar
All first-year full-time students entering Kennesaw State University with fewer than 15 semester hours are required to complete a First-Year Seminar. Students with 30 or more credit hours are not eligible to enroll in a First-Year Seminar.
Write a complete program that prompts the user for the number of credit hours they have completed. Write the necessary conditional statement(s) to address the stipulations in KSU’s policy.
When you run your program, it should display one of the following messages to the screen:
• You must enroll in First-Year Seminar.
• You do not have to take First-Year Seminar.
• You are not eligible for First-Year Seminar.
Sample Output
Break the Problem Down
Answer the following questions, then use the information to write your code.
What do we need to store? (MEMORY)
Enter the number of credit hours have you completed: 30
You are not eligible for First-Year Seminar.
What are the inputs in the problem statement above? (INPUT)
What calculations are needed? (PROCESSES)
What needs to be displayed to the user?
(OUTPUT)
How many conditions are there in your problem statement?
What are they?
Does something need to happen if the condition(s) are not met?
What type of conditional statement do you need?
Solution in Java

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ntities; We have to understand what the word “Culture” actually means. For me, culture is more than art or food. It’s how people live on a daily basis, It's religions people decide to practice, it's how people dress, it's how people view other things as well.

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8.If the pH of a solution is 4.2, what is the concentration of Mg(OH)₂? Also could you please show ...

me how you got to the answer please, thanks.

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9.How is the answer .25 mol of Oxygen? I understand that Al is the Limiting Reagent and that 2.5 mol ...

f Al2O3 is produced, but then how is .25 mol of Oxygen left over? I know that with ratios the answer probably makes sense, I'm just missing that one step because I don't know what to multiply with what.

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our answer to the nearest whole number

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11.A sample of gas at 967.4 mmHg, occupying a volume of 12.66 L, and at a temperature of 28.57 °C ...

ransferred to a container with a pressure of 212.31 kPa and a temperature of 72.87 °C. What is the new volume in L? Provide your answer with TWO decimals.

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Rose
By: Tomson Highway
Should Only Native Actors Have the Right to Play Native Roles?
Deep in my Cree heart of hearts, I had two-millennium projects on the go, though this only in hindsight. One was for the year 2000, the other for 2001, and thus just to make sure I had the right year for actually beginning this brand new, and incredibly exciting, millenium. Those two projects? For the year 2000, an English language production, in Toronto, of the third play in what I call my “Rez Septology,” a play called Rose. And for the year 2001, the Japanese-language premiere, in Tokyo, of the second play in the septology, a play called Dry Lips Oughta Move to Kapuskasing. And this is how the two projects affected me and my life:
When it dawned on me, one cloudy day, that my career as a playwright had been destroyed by political correctness, I just about died. I wanted to throw myself under a subway train and just call it a day. I was horrified! After all that work? After all those years of struggle and of hope and of prayer and of pain and of tears and of more struggle, against odds that were impossible to begin with? But how can it be? How can the voice of a playwright be silenced? By a method so brutally effective as political correctness? In a country supposedly as civilized as Canada? Questions like this, and others like them, resounded through my brain over and over and over again. As they do to this day. Permit me, therefore, to start off with the “backdrop” before I go into “the projects,” please:
First of all, I don’t happen to have the good fortune of coming from a city such as Montreal or Vancouver or Toronto or Ottawa or New York or any other major city where educational (and employment) opportunities, right from age one, are virtually unlimited (believe me, you can be a movie star by age one in such cities!). And I don’t come from a city where English (or French) is the language of the day. I come, instead, from one of the tiniest, most remote, most inaccessible, most underprivileged and most troubled Indian reserves in the country, Brochet, Manitoba, population 700, one thousand five hundred kilometers directly north of Winnipeg (further than Churchill but on the opposite side of the province). I come from a place where the language spoken is Cree. AND Dene, incidentally; because we are located so far north, we spill over into the land of such sub-arctic peoples as the Dene (linguistically speaking) to the Navajo and other southwest Native nations. In fact, to fly from Toronto (my home until recently) to Brochet costs more than a ticket to Sydney, Australia or to Rio de Janeiro. To fly home to visit my family (which I do regular as clockwork), I could fly from Toronto to London, England and back - three times each way- for the same amount of money, easy. No jumping in a taxi or a car or on a bus or a train or a “seat sale” seat on a plane from Toronto to Vancouver for the likes of us, not to go have lunch with Mom, not to go to a funeral. Plane ticket prices for Canada’s northerners? Brutal. Brutal, brutal, brutal. And that’s just the distance barrier, never mind the linguistic. For Cree is as different from English as English is from Cantonese; not one shred of resemblance exists. In fact, the two languages are often completely at odds with each other. In one language, for instance, God is male, in the other, female. And that’s just the start…
So along comes this little Indian boy from one such remote northern Native community and into the big, big city of Toronto and he dares to dream of a career in the theatre, or, at the very least, in the world of Canadian letters. Fat chance, baby! Forget it.
He doesn’t listen. He goes ahead anyway. “No matter how they laugh, let them laugh. I can do it,” he says to himself. And he puts his shoulder to the grindstone, as they say in movies.
People always say The Rez Sisters was my first play. That’s not true. It’s not true at all. It may have been my first play to be successful with the general public. But there were five plays that came before that, every one of them self-produced, with money from my very own pocket. And some of these plays were awful, some of them were good, at least two of them were very, very good. But only with The Rez Sisters did my work suddenly, finally get noticed by, as I say, a wider public. By which time, I was almost forty. And what I had to go through to get those first five plays self-produced, you don’t even wanna know! How do you make money standing with your back against the wall in some big city, downtown back alley? Late, late at night? Guess.
When it came to that “first” play, however - and I speak here about The Rez Sisters, which, in fact, was my sixth - it was the fall of 1986. In those days, of course, you could count the number of professional Native actors in this country on the fingers on one hand alone. In my wildest dreams - keeping in mind that my work was totally unknown then - I dared to write this play for “them,” meaning for those four or five professional Native actors then in existence. The reason? I adored them. I just absolutely adored these people AND their work. They were my heroes. They kept my dreams alive.
So it came to the casting of the show. Finally, my play was going to get done! I was so excited I could hardly sleep at night. So then I approached them, these Native actors, for you see, as always, I was the producer, again, or at least in this case, one of the two co-producers, god bless the other co-producer, may he rest in peace. These Native actors, however, all said “no.” They were all too busy working on other projects, many of them on Native subject matter written by - horrors! - white people! I pleaded with them and pleaded with them and pleaded with them but, still, they said “no.” God bless them and their courageous careers but they made me cry. They made me want to give up and die.
So what choice did I have? Either I forget the play and kill myself. OR I go right ahead and hire - horrors! - white actors! Which is what I did, exactly. And these white actors, they were SO generous, they were so kind, so supportive, so confidence generating that, with their help as with that of those Native actors who did say “yes,” god bless them - I simply bloomed. The play opened. The play was successful. And it has never really stopped playing ever since, somewhere in the world, giving continued employment to many, many, many actors both Native and non-Native. As it will do probably forever - your grandchildren will be playing in The Rez Sisters! - something that would NEVER have happened if not for the help of extremely generous people who happened NOT to be Native, actors who happened to be white!
Several years later, I experienced a similar situation. This time, it was with a play called Rose. Again I wrote it for Native actors - of which, by this time (1991), there were many more - actors whom I absolutely adored, whose work I absolutely adored. And again, for some strange reason, they said “no.” They were NOT interested. I couldn’t get them interested. If their objective was to make me cry, then they were certainly utterly successful.
So then I waited ten years. Ten years! And by this time, I’m almost fifty years old, okay? Until some incredibly generous non-Native person comes along and offers to produce it, albeit, in a university setting, that is, a non-professional (i.e., non-paying) setting. I was thrilled. I was so thrilled I could have danced myself to shreds!
So then they went to work on it, this group of “white kids,” none of whom was older than twenty-five. And they worked. And they worked and they worked and they worked and they worked. Never seen such a group of people work so hard. And with so much faith and so much conviction and so much love. It was a blessing from heaven to be sitting there beside them, to be in the same room as them. They glowed, they glowed like lightbulbs. You’ve never seen people so happy, so high. And by the time the show opened, you couldn’t get a ticket; it had been sold out way before opening; hundreds of people were turned away. On virtually no advertising; it all happened by word of mouth. And, to me -as to most people who saw it - the production was FANTASTIC! It was rich, it was beautiful, it was spectacular, it was moving, it was...miraculous! Not perfect, perhaps, but pretty gall-darned good.
But these were the things about this experience that most struck me, that most stayed with me:
Not one of these actors got paid; they were students; in fact, because they were students of the drama programme at the University of Toronto, they were paying for the experience through their tuition fees which, if I understand correctly, can be as much as $8,000 a year at that particular institution. Pardon me - ONE of those actors DID get paid, a little girl we needed who, of course (being little), came from outside the drama programme. And she, by the way - and god bless her - was the only performer in that production who was Native. But how many Native actors do YOU know who would be willing to pay $8,000 to be in a show? Any show? That question stunned me.
All the other performers? Well, we had French-Canadians and Anglo-Canadians and
Dutch-Canadians and Polish-Canadians and Ukrainian-Canadians and Jewish-Canadians and Peruvian-Canadians and Lebanese-Canadians and Portuguese-Canadians and god only knows what else! And none of them have even met a Native person, up until then. They pretty well all came from the city of Toronto, or somewhere very close by (such as Barrie, or Sudbury) so they had never, ever been privy to any even remotely “Native experience” in their lives. Now, for the first time, in their third year of university, at ages 21-25, here they were getting this heavy-duty immersion course in “Native Studies,” meaning Native culture, Native history, Native spirituality, Native language - they were learning to speak Cree for god’s sake, something you can’t get Cree kids to do these days! - Native art, Native music, and just generally, Native life in this country, today. And you know what? They all fell in love with it. Now, as the direct result of such an experience, what they have for Native culture and people and languages is endless respect, even awe. And love. And what’s more, they will pass on that knowledge and that love and respect - and wisdom - on to their children and their grandchildren and their great grandchildren, etc., etc., etc…. The experience changed their lives. And both communities - Native AND non-Native - will benefit from it, both in the long term AND permanently.
The experience certainly changed MY life. It shocked me. The shock? That generosity and kindness and love know no racial boundaries. And that, contrariwise, UN generosity and lack of kindness and just plain cruelty ALSO know no racial boundaries. Coming out of Rose, I ended up with the immense gift of, minimum, 30 gorgeous, fantastically kind new friends, people whose friendship and generosity - and laughter - I will cherish right up until the day I die.
And the icing on the cake? A show was born that otherwise would never have been born, that otherwise would have died forever. A show was born that will give useful, meaningful, enriching employment - and enjoyment - to many, many people for many, many years. Like, I say, the whole thing was a shock. And it took ten years!
One more story before I close off on my point, the story, that is of my second “millennium project,” so-called. As it turns out, I’m writing this from Japan, specifically Tokyo, where the Japanese-language production of another play of mine, Dry Lips Oughta Move to Kapuskasing, just opened.
It was awesome. And, again, it wasn’t so much the production - which was absolutely stunning! Imagine, if you will, the Seven Samurai doing Dry Lips.. - that move me so much as the generosity of the cast and crew, Japanese every one of them. That generosity, that kindness, that largeness of heart, just astonished me. It made me cry. To be the beneficiary of kindness on that scale is a gift one could easily die for. As a result of just that one project, I now have a hundred friends, easy, in Japan. For the rest of my life! I LOVE Tokyo!
And again, none of these people had ever met a Native person - well, two had, but…- much less knew anything about Native culture first hand. By the end of the six-week rehearsal process, however, some of them were speaking Cree AND some Ojibway. And let me tell you, to hear your own Native tongue being spoken with a Japanese accent is a bittersweet experience indeed. (I mean, come on, folks! To be unilingual in a language that’s not even your own? If the Japanese can learn Cree, YOU can learn Ojibway!) And, again, these people will pass their respect for Native people and culture on to their children, their grandchildren, their great great grandchildren etc., etc., etc…. The experience changed their lives. It changed mine.
The one question I kept being asked over and over? How does it feel to have Japanese actors playing Native parts? (In the aforementioned Canadian production of The Rez Sisters, it was more like, “how dare these two white women STEAL Native parts from Native actors!” Well, good grief! The show would never have been born without them in the first place!) Anyway, my answer to the question in Japan was this:
1) These Japanese actors, they’re human beings, for god’s sake. What they are, first, foremost and last, is real-life, flesh-and-blood human beings with feelings, human beings who happen to be incredibly talented. And incredibly generous. If they hadn’t agreed to do it, it would never, EVER have happened.
2)To me, saying that only Native actors have the right to play Native roles - on stage, anyway, as opposed to film, which another thing entirely and not at all what I’m talking about here - well, that’s like saying only Italian actors have the right to play in Romeo and Juliet, or only Danish actors have the right to play in Hamlet, or only Spanish actors have the right to play in Blood Wedding. It would be like saying to someone like Canadian film-maker Atom Egoyan, “you have the right to work with Armenian actors only,” which, of course, would automatically bring his career to a standstill; it would destroy it, it would kill it, right there on the spot. Or as I asked, one sunny day, a respected, much admired Jewish theatre artist, “how would you like to work with no but Jews for the rest of your life?” You could almost see his hair stand on end; the very thought horrified him.
My argument with someone else at that same summer gathering? “Theatre is about illusion, the better the magic, the more profound the experience.” Besides, working in a situation of cultural, ethnic and linguistic diversity can be the most empowering, most liberating, most exhilarating experience in anyone’s life. Working in a pressure cooker environment by comparison? Working in the context of a “ghetto” of any kind whatsoever, be that “ghetto” Native or black or French or English or Jewish or female or male or gay or…? Remember the expression, “familiarity breeds contempt”? Well, only too frequently, such a working environment can only mean THAT kind of disaster. Or one of plain, out-and-out hatred. And hatred, as who doesn’t know, kills and kills completely. It kills relationships, it kills communities, it kills love. Look at what the Argentinians did TO EACH OTHER during the so-called “dirty war” of the 1970s. Look at what the Spanish did TO EACH OTHER during the Spanish Civil War. Look at what the Chileans have done TO EACH OTHER. Look at the Irish in Northern Ireland. Look at the Balkans, at Cambodia in the ‘80s, at Haiti, at Rwanda, etc., etc., etc…. Does anybody out there actually want to live like that? Internally directed hatred, internally directed violence - which, in essence, is what civil war is - well, there is nothing more destructive, we all know that. Diversity! What we all need is diversity! What we all need, desperately, is room to breathe! That’s what makes Canada work as a society; precisely its diversity. If we - all of us - were Cree, I would have had my head macheted off a long, long time ago!
All by way of saying the following: “Only Native actors have the right to play Native roles?” Music to Native actor’s ears, perhaps, yes, god bless them. But death to a Native playwright’s career. Because chances are that the show will NEVER, ever get done. No producer in the country has balls that size, balls big enough, that is to say, of going against the political grain. Not today. Not tomorrow.
Stop it, you people! It’s killing us!
Myself, I had to move out of the country, finally. I could no longer live there, not really. I kind of live, well...all over the world now. I do where I can find work. Because I certainly am NOT finding it in my own country. I go where I can find the kindness, I go where I can find the generosity, I go where I can find the friendship and support. The working situation in Canada, for someone like me? Well, it has simply become unworkable. I find it stultifying, asphyxiating. I CAN’T work under such artificial constraints. No one can. Sooner or later, it will drive you crazy. Not to mention kill your imagination. AND your career. All as you watch, with envious eyes, the careers of your non-Native playwright colleagues (whom you love) bloom like a garden everywhere around you…
It seems to me that what we have here are two distinct choices: a) either we cast a show politically correctly (meaning only Native actors play Native parts) and the show never, ever gets produced (trust me; I waited ten years for Rose to happen, more for others which will NEVER get done), or b) cast it any way you want, in whatever way you can afford it budget-wise (plane tickets are a waste of money, trust me), let the show be born, let the show become successful, and THEN it will live on forever to employ many, many, many more actors, Native and otherwise, for many, many, many more years. And the upshot of the latter arrangement? Having Native and non-Native actors working side by side like that? There is no better healing agent for bringing two only-too-frequently disparate, disharmonious communities together. And, in the process, making our country an even better, richer, healthier country than it is already.
The life of an artist is so incredibly challenging, after all, a Native artist’s most especially, in Canada today, or anywhere in the world. Everywhere you turn, insurmountable obstacles meet you square in the face. Everywhere you turn, events, or people, conspire to bring you down, to destroy you. What those artists need, and need most desperately, is as much breathing space as you can give them, the freedom to create, the freedom to employ, the freedom to fly with their souls and imaginations. Don’t hold them down. Don’t shoot them down. You will kill them. Or drive them away. They need all the help they can possibly acquire. They’ve already almost killed themselves just to get to where they are today.
Someone said to me one day: “Artists are here to break down barriers, not to create them.” So, myself, I’ve moved away. I’ve left my own country, to continue helping to break down barriers in whatever way I still can, at my age, in the only way I know how, and to have a good time doing it. The thing is, I can do that. I can take it. I’ve had, as they say in the business, my “fifteen minutes of fame.” Enough already. I’ve been very, very lucky (not to mention being the beneficiary of extraordinary teachers, absolutely extraordinary parents and many dear, dear friends). And I’ve moved on, to other things. I have had, after all, no choice.
The sad thing is this: what about the next generation of Native playwrights? Will they, too, one day find themselves standing on that subway platform - late, late at night, stoned, drunk out of their skulls, not a penny in their pockets, no future in sight - and those long, silvery tracks down below gleaming up at them in a manner most, most enticing?

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13.The question is "A dog is looking at the top of a steeple that is sitting on top of a ...

ight of the church, not including the steeple is 20 feet. The line of sight between the dog and the top of the steeple is 29 feet. What is the height of the steeple? Round your answer to the nearest tenth

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14.A rock is thrown from a cliff. Its path may be modeled by the function h(t) = -2t^2 +6t ...

is measured in seconds and height is measured in metres. Answer each of the following algebraically.
at what time does the rock hit the ground?
for what length of time is the rock above a height of 8 metres?

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reaction between A(g) and X(g). What is the amount of heat released when 10 mol of A(g) reacts with an excess X(g) ?
ΔH
A -236kJ
X -136kJ
Y -167kJ
Using the heats of formation found in the table above, calculate ΔH for the reaction below.
6A(aq) + 7X(g) → 6Y(l)
Y + 2X → 4Z ΔH=-4
A + 3B → 2Z ΔH=-2
A → X +C ΔH=7
Using the thermodynamic data above, determine ΔH for the reaction below.
2C+ 6B → Y
When 0.3 moles of A(s) (4 grams) is dissolved in 12 grams of water at 23°C, the temperature of the water increases to 31°C. The specific heat of water is 4.18 J/g°C.
Calculate ΔH in kJ/mol. Report your answer to 1 decimal place.

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rmic reaction between A(g) and X(g). What is the amount of heat released when 10 mol of A(g) reacts with an excess X(g) ?
Report your answer to the nearest whole number.

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2 (g) + H2O (l) + 2KCl (aq)
Group of answer choices
2H+ (aq) + 2OH- (aq) → 2H2O (l)
NR (no reaction)
2K+ (aq) + SO32- (aq) + 2H+ (aq) + 2Cl- (aq) → SO2 (g) + H2O (l) + 2KCl (s)
SO32- (aq) + 2H+ (aq) → SO2 (g) + H2O (l)
2K+ (aq) + SO32- (aq) + 2H+ (aq) + 2Cl- (aq) → SO2 (g) + H2O (l) + 2K+ (aq) + 2Cl- (aq)

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titrated with a 0.200 M solution of the base, LiOH.
Write the balanced chemical reaction for neutralization reaction:
HClO4 (aq) + LiOH (aq) → LiClO4 (aq) + H2O (l)
Write the NET ionic equation for the neutralization reaction.
OH⁻ (aq) + H⁺ (aq) → H2O (l)
Compute the pH of the titration solution. Show your work
i) before any of the base is added
ii) after 25. mL of base is added
iii) after 50. mL of base is added
A student performs the titration with the same chemicals but with smaller volumes of each chemical . Which of the following titration curves could represent the titration. Explain
A because this entails a strong acid and a strong base.
Question 2
A student performs a titration of an unknown acid with a strong base and gets the following titration curve:
a) The student consults the list of pKa of acids shown below. If the acid is listed in the table below, which is the most likely identity of the unknown acid? Explain.
Acid
Ka
HF
7.2 x 10-4
CH3COOH
1.8 x 10-5
H2CO3
4.3 x 10-7
HBrO
2.0 x 10-9
The unknown acid is HBrO because the calculated Ka is in between 50^-4 and 50^-6 and 2.0 x 10^-9 lies in between them.
b) What is the initial molarity of the acid?
10^-3 = 0.001M
Question 3
a) Describe the components and the composition of an effective buffer solution. Explain how the components of the buffer allow the buffer to maintain its pH.
An effective buffer solution has a weak acid and its conjugate base or a weak base and its conjugate acid. A buffer solution is most effective when the ratio of its component concentrations is close to 1, also when the pH is equal to the pka of the acid.; The components of the buffer allow the buffer to maintain its pH because buffers can absorb excess H+ions or OH– ions.
An employer is interviewing four applicants for a job as a laboratory technician and asks each how to prepare a buffer solution with a pH of 5.0. The following constants may be helpful: hydrazoic acid, pKa = 4.74 Boric acid, pKa = 9.23
Archita A. says she would mix equal molar solutions of hydrazoic (HN3) and sodium azide (NaN3) solutions.
Bradley B. says she would mix equimolar Boric acid (H3BO3) and HCl solutions.
Carlos C. says he would mix equimolar Boric Acid (H3BO3) and sodium dihydrogen borate (NaH2BO3) solutions.
Delia D. says he would mix equimolar hydrazoic Acid (HN3) and NaOH solutions.
b) Which of these applicants has given an appropriate procedure? Explain your answer
Delia because she is using Sodium hydroxide which results in a pH of 5. NaOH is a strong base and in order to have an effective buffer a weak acid must be incorporated which is the HN3.
c) Explain what is wrong with the erroneous procedures.
The rest all incorporate a strong acid and a strong base or a weak acid and a weak base which don’ result in an effective buffer.
d) The applicants have access to the 1 Liter volumes of each of the solutions listed above. They have access to graduated cylinders. In order to make 1.0 Liter of the correct 5.0 buffer solution, what volumes of the two chemicals must be mixed?

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trategic Leadership of the Digital Transformation
I need only one and short paragraph and in-depth answer
What key strategic actions did Mathias Dopfner take and how were they different from how most other publishers approached the digital revolution?

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21.In a box there are 4 red, 4 blue and 3 white marbles. Two marbles are selected at random and ...

or is noted. Find the probability that neither is white given that neither is red.Round your answer to 4 decimal places
A place kicker in the NFLmakes 78% of his field goals. If the outcomes are independent, what is the probability that he makes exactly 6 of the next 8 field goals? Round your answer to 4 decimal places
There are 5 white mice and 3 gray mice in a cage. Three mice are selected at random and their colors are noted. Find the expected number of white mice.Round your answer to 2 decimal places

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probability that he makes exactly 6 of the next 8 field goals? Round your answer to 4 decimal places

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the right one. Healthcare professionals must deal with these challenges based on their training and knowledge of ethical principles and decision making. Choose an ethical dilemma from the list below and answer the questions that follow. Use your knowledge and understanding from what you have already learned from Unit 1 and 2 lessons and the textbook reading assignments.
Genetic testing and home test kits
Physician-assisted death
Artificial intelligence and clinical decision making
Organ transplantation and artificial organs
Note: If you would like to choose a dilemma other than one on the list, please consult with your instructor and obtain permission.
Describe the issue and why and how it poses an ethical dilemma for healthcare providers and healthcare organizations?
What ethical principle(s) would be applicable to the dilemma?
Describe the ethical decision-making steps used to come to an ethical decision? With whom would a healthcare professional consult in coming to a decision?
How are your personal values challenged? What would be a personal bias or conflict of interest in resolving this dilemma

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) is heated to 194.3 and placed into a car Lori meter with water at 28.1 degrees Celsius . The final temperature in the calorie meter is 48.9 degrees Celsius and the specific heat of water is 4.18j/gC give your final answer to one decimal place.

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25.A bag of 11 marbles contains 7 marbles with red on them, 3 with blue on them, 5 with green ...

and 4 with red and green on them. What is the probability that a randomly chosen marble has either green or red on it? Note that these events are not mutually exclusive. Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth.

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lternative hypothesis c. What is the correlation between motivation and GPA? r = ____________________ direction ____________________ (positive or negative) strength ____________________ (weak, moderate, or strong) r 2 = ____________________ d. State your alpha level (most commonly used) ____________________ e. Give the p-value ____________________ f. What decision do you make relative to the null?

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27.A single letter from the word HAPPINESS is chosen. What is the probability of choosing a P or an S? ...

Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth.

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to randomly choose three flavors, what is the probability that the three they choose will consist of each of their favorite flavors? Assume they have different favorites. Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth.

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29.Suppose you'd like to save enough money to pay cash for your next car. The goal is to save an ...

$28,000 over the next 5 years. What amount must be deposited quarterly into an account that earns 5.8% interest, compounded quarterly, in order to reach your goal? Round your answer to the nearest cent, if necessary.

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o the bucket and randomly drawing three balls numbered 10, 5, and 6 without replacement, in that order? Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth.

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humidity of this air mass (expressed as a percentage)? Round your answer to the nearest tenth of a percent

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34.Amy has 8 cloth masks in 4 different colors- 2 of each. She picks a mask daily at random. In ...

2 masks are not in the pile (used/laundry)
(a) What is the probability Amy picks a mask in her favorite color?
(b) Given that yesterday she drew her favorite color, how would your answer to (a) change?

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36.hI I need help with a FINITE MATH question. In a survey of high school graduates, it was found that ...

if a graduate went on to college full time, there was a 23% chance that they would work at the same time. If a graduate attended college part time, there was a 79% chance that they would work at the same time. If a high school graduate didn't go on to college, there was a 93% chance that they would work. At the time of the survey, 66% of high school graduates attended college full time and 20% of high school graduates attended college part time. If a randomly selected high school graduate worked, what is the probability that they attended college full time? Enter your answer in decimal form and round to four decimal places if necessary. You may want to look at pages 42 through 45 in the notes (videos 30 through 32).
If a randomly selected high school graduate worked, probability that they attended college full time =

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37.At a price of $1.04 per roll, the supply of toilet paper in a large town is 25,000 rolls, and ...

mand is 18,200 rolls. When the demand increases to 26,200 rolls, the supply is 20,000 and the price is $1.24 per roll. Let x be the quantity in thousands of rolls. The table below gives the price-supply and price-demand equations.
Price Equations for Toilet Paper
Type Equation
Price-Supply P = -0.04x + 2.04
Price-Demand P = 0.025x + 1.495
QUESTION 1
Find the supply at a price of $2 per roll.
1000 rolls
10,000 rolls
1 roll
5000 rolls
QUESTION 2
Find the demand at a price of $2 per roll.
20.2 rolls
202 rolls
20,200 rolls
500 rolls
QUESTION 3
Use the substitution method to find the equilibrium quantity. Round x to the nearest tenth first and then convert to thousands. Include the units in your answer.
QUESTION 4
What is the equilibrium price? Write the answer in dollars and cents, rounding to the nearest cent.

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0. mL of water? Enter your answer as a number with 3 sig. figs.

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ies examined in class. This paper is not a literature review, though a literature review is part of your work. As this course takes place in a compressed timeline, I provided some suggestions for research topics. Feel free to use one of these as a springboard or propose your own.
At the end of the second week of class, students submit a three-page research paper prospectus. A research prospectus is a preliminary plan for conducting a study. This is not a detailed and technical research proposal, but rather, an analysis of the issues likely confronted in such a study. In essence, it is a preliminary proposal of work.
Research Paper Prospectus Elements
To complete the Research Paper Prospectus, consider the following elements. While the prospectus is limited to three pages of body content, remember, students must cover each of these areas as relevant to the plan for research:
Research Problem. What is the research problem? A problem is a situation when left untreated, produces a negative consequence for a group, an institution, or a(n) individual(s). What makes it a problem? For whom? Who says so?
Assumptions. On what assumptions is the work based? Which assumptions are verifiable in literature? Which assumptions are speculative?
Theoretical Issues. What theoretical issues arise from the study? For example, "theoretically," how is the problem and suspected results explained to other scholars? Is there a behavior view? A social systems view? Are there other theoretical orientations to consider in the study's design?
Literature Review. What, in general, does the literature say about the topic? While more development is expected for the final paper, a review of major theories, research, and writers in the field is needed.
Research Questions. Based on the problem, what are the research questions to be answered? How and why will answering the questions contribute to solving the research problem? Remember....a research question can only be answered with empirical data or information.
General Research Plan. In general, what research is necessary to answer the research question. What kind of data is needed? Specify the type, such as surveys, observations, or interviews. Who is to be studied and why? How is the data reduced and made sense of? How is the quality of the data assured?
Anticipated Difficulties and Pitfalls. What kind of difficulties and pitfalls are expected in a study of this nature? What can be done to prevent them or minimize their effects?
Anticipated Benefits. Who will benefit from the fact this research is undertaken? How? Why? Who might be disturbed by this proposed study? How? Why?
Paper Format Requirements
The Research Paper Prospectus is presented in standard APA 7 format, with a cover page, running head, body, and references list. The cover page and references do not count toward the three-page requirement. The body uses headers and in-text citations in the manner prescribed by APA. Students should include any references they know at the time they submit the prospectus, though it is expected the references may change or increase in number. Full and complete adherence to APA is required.
APA Basics
As APA format is the rule, remember the formatting rules shown on the Sample Paper (Links to an external site.):
Times New Roman, 12pt
1" margins on all sides
Double spaced, with extra line spaces removed (see below)
Page numbers in the upper right
Two spaces after concluding punctuation
150-250 word abstract with keywords
APA-style in-text citations and quote format. Use the Purdue OWL in-text citation information (Links to an external site.)to help you.
Alphabetical (by author) reference page with correct reference format. DO NOT trust the reference generator in your word processing program. It is WRONG! Use the Purdue OWL references information (Links to an external site.)to correctly structure references and do so manually.

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41.1. A leg of lamb cost $14.88 per kilogram before cooking and the percentage of yield is 83% what is ...

the cost per kilogram of the edible of the lamb
Answer with 2 decimal place
2. A beef tenderloin costs $34.17 per kilogram before trimming and the percentage of yield is 80%. What is the cost per kilogram of the usable portion of the beef tenderloin?
(Answer with 2 decimal places)
3. The cost of a portion of roast sirloin of beef with potatoes and vegetables is $4.70. If we desire a 41% food cost, what should the menu price be? Round your answer to the nearest penny.
(Answer with 2 decimal places)
4. The cost of a portion of grilled halibut with boiled potatoes & vegetables is $4.69. If we desire a 27% food cost, what should the menu price be? Round your answer to the nearest penny.
(Answer with 2 decimal places)
5. The cost of a caesar salad is $2.38. If we desire a 31% food cost, what should the menu price be? Round your answer to the nearest penny.
(Answer with 2 decimal places)
6. The cost of a pulled pork sandwich with coleslaw and fries is $3.14. If we desire a 37% food cost, what should the menu price be? Round your answer to the nearest penny.
(Answer with 2 decimal places)
7. The cost of a portion of deep fried chicken with corn fritters and fries is $4.55. If we set a menu price of $15.75, what would the food cost percentage be?
(Answer with 2 decimal places)
8. The cost of a veal piccata complete with penne pomodoro & vegetables is $6.03. If we set a menu price of $18.50, what would the food cost percentage be?
(Answer with 2 decimal places)
9. The cost of a portion of beef goulash complete with spaetzle and vegetables is $5.82. If we set a menu price of $15.50, what would the food cost percentage be?
(Answer with 2 decimal places)

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e unit circle? What am I missing?

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height in thousands of feet and t is time in minutes. Answer the questions below and express your reasoning to the right.
a.At what time is the rocket launched?

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nd standard deviation 6 inches.
A button hyperlink to the SALT program that reads: Use SALT.
(a) What is the probability that an 18-year-old man selected at random is between 64 and 66 inches tall? (Round your answer to four decimal places.)
Correct: Your answer is correct.
(b) If a random sample of seven 18-year-old men is selected, what is the probability that the mean height x is between 64 and 66 inches? (Round your answer to four decimal places.)
Incorrect: Your answer is incorrect.
(c) Compare your answers to parts (a) and (b). Is the probability in part (b) much higher? Why would you expect this?
The probability in part (b) is much higher because the standard deviation is smaller for the x distribution.
The probability in part (b) is much higher because the standard deviation is larger for the x distribution.
The probability in part (b) is much higher because the mean is smaller for the x distribution.
The probability in part (b) is much higher because the mean is larger for the x distribution.
The probability in part (b) is much lower because the standard deviation is smaller for the x distribution.

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average rate of 1.1% since then, how many years later would the population arrive at 102.000 people? Give your answer as a number only, to the nearest tenths
Question 3
In a bag containing 5 red, 2 blue, 8 clear, and 1 purple marble, what is the probability of picking a blue marble, then without replacement, choosing a red marble on the second pick? (Leave in simplified fraction form.]
Question 11
Poaching is causing a population of elephants to decline by 6% per year. Determine how many elephants remain in 76 years if there are 13,365 elephants today. Round to the nearest whole number.

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s 1600 cubic inches. The height of the box is 8 inches and the length of the box is 2 times longer than the width of the box. What is the width of the box?

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BASED ON POSTED NOTES AND CLASS LECTURE ONLY. IF YOU USE/CITE OTHER SOURCES, POINTS WILL BE DEDUCTED. Most responses should be at least four sentences.
1. Summarize the "Solitary Confinement" video. After watching this video, do you believe that this form of punishment is appropriate and/or effective in rehabilitating criminals?
2. Based on class lecture/notes, summarize Ross Chambers theory regarding “unexamined" individuals in society.
3. How are gender, race and aging interrelated?
4. What are the strengths and drawbacks of capitalism? What are the strengths and drawbacks of socialism? How are politics and economics interrelated?
5. Summarize any section of the class lecture/notes that resonated most with you (and that you were not asked about on any formal assessment such as the mid-term examination or other assignment).

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h on, the sound you hear is 0.005 W/m2. If you double your distance away from them, what is the SIL of the sound you hear? Give your answer in dB. (Do not include the units, only enter the numerical value.)

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49.I have a doubt on a question I was revising on, I'm not sure how to work it out, I planted ...

seeds. One monkey woke up and ate 1/2 of it. another monkey ate 1/3 of what remained. Another monkey 1/4 of the remainings, The forth monkey ate whatever was left What fraction what fraction of the original pile of seeds is left.
I know the answer is 1/5 but I just don't know how.

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50.The angle of depression from the top of a lighthouse to a raft on the water is 33o. The angle ...

evation from a seagull on the water to the top of the lighthouse is 38o. If the distance between
the seagull and the raft is 7m, then what is the height of the lighthouse? Use the sine law to answer
the problem.

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te of 10% per year. The budget last year was $352,000. What should he expect it to be 2 years from now? Round your answer to the nearest thousand.

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ective castings produced by their production process. The quality control manager randomly samples 250 castings at 12 successively selected time periods and counts the number of defective castings in the sample.
Step 1 of 8 : What is the Center Line of the control chart? Round your answer to three decimal places.

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53.I'm stuck on this problem regarding finding the speed of a cart moving down and then up a slope from ...

rest. The current unit that our teacher has us on so far is centripetal motion, and I can't recall being taught how to solve this. File attached below shows my work so far, I don't necessarily need the work done for me, but I just want to be put on the right track, such as an equation to start with or what I need to look for. The answer I got was clearly incorrect for part a (which is what I need help with), so please help me get going in the right direction.

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ory of the Universal Declaration of Human Rights." Third World Quarterly 23, no. 3 (2002): 437-48. (in the file attached) This are the questions:
Question 1 Waltz discusses four political myths about the Universal Declaration of Human Rights, and demonstrates they are misleading. What is her main argument? In your answer identify the hypothesis that Waltz targets.
Question 2 Does Waltz discredit this hypothesis or not? Keep in mind that a hypothesis aims to explain something.

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anation and help to answer the questions is what I need

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d deviation of 18. What is the minimum score needed to be in the top 10% of the scores on the test? Carry your intermediate computations to at least four decimal places, and round your answer to one decimal place.

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ehalf of their customers, portfolio managers give a questionnaire to new customers to measure their desire to take financial risks. The scores on the questionnaire are approximately normally distributed with a mean of 49 and a standard deviation of 14 The customers with scores in the bottom 10% are described as "risk averse." What is the questionnaire score that separates customers who are considered risk averse from those who are not? Carry your intermediate computations to at least four decimal places. Round your answer to one decimal place.

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chets and sells baby blankets, b. Each blanket requires 3 skeins of yarn, and the total number of skeins Facundo uses, y, varies directly as the number of blankets he crochets, b.
Write an equation that models this relationship.
2. The weight of an object, w, varies inversely as the square of its distance from the center of Earth, d. When an astronaut stands in a training center on the surface of Earth (3,960 miles from the center), she weighs 155 pounds. To the nearest tenth of a pound, what will be the approximate weight of the astronaut when she is standing on a space station, in orbit 240 miles above the training center?
3. The square of g varies inversely as h. When g = 16, h = 2. What is the value of h when g = 40?
4. The number of days, d, it will take Manny to read a book varies inversely as the number of pages, p, he reads per day. If k is the constant of variation, which equation represents this situation?
5. The battery life for Bruhier’s cell phone is longer when he has fewer apps running. When only one app is running, the battery will last for 16 hours. When four apps are running, the battery will only last for 4 hours.

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59.A plane travels at a speed of 175mph in still air. Flying with a tailwind, the plane is clocked ...

r a distance of 675 miles. Flying against a headwind, it takes 1 hour longer to complete the return trip. What was the wind velocity? (Round your answer to the nearest tenth.)

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tarting the process of meiosis. Draw the chromosomes, depicting them inside the cell, as you would expect them to appear during Metaphase I. (Note: there is more than one correct answer for this prompt. You only need to draw one of the answers.)
2.How many copies of gene A are present in this parent cell during Metaphase I?
3.How many total chromosomes would you have after DNA replication (synthesis)?
4.While examining a specific tissue in this organism, Bridget noticed some cells with more than one nucleus (this is commonly found in many species, including humans!). What could have happened during the process of cell division to yield these multinucleate cells?
5.In one of her harebrained experiments, Dr. Milam remembers treating some cells from one of her organisms with a drug that resulted in the cell being unable to replace RNA primers with DNA. Which protein in the cells was most likely affected by this drug treatment?
6.In another one of her experiments, Dr. Milam treated cells with a different drug that caused an adenosine in gene A to be paired with a cytosine instead of a thymine during DNA replication. However, Dr. Milam remembers that the amino acid sequence of the protein product of gene A wasn’t actually changed. How could you explain this observation?

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61.how do I answer this question? i dont understand what im supposed to and hkw to do it? 1. ABCD is ...

rectangular sheet of paper, AB 15cm and BC 12= so that the fold line goes through the corner A and the corner B ends up in the figure. Calculate the area of the quadrilateral AECD and the triangle ABC. 12cm. The sheet is folded to the side of the CD, see

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ers paid another 6.2%. How much will someone earning $34,000 a year pay towards social security out of their gross wages?
2) The population of a town increased from 3350 in 2005 to 4800 in 2010. Find the absolute and relative (percent) increase.
3)A company's sales in Seattle were $400,000 in 2012, while their sales in Portland were $295,000 for the same year. Complete the following statements:
a. Seattle's sales were
% larger than Portland's.
b. Portland sales were
% smaller than Seattle's.
c. Portland sales were
% of Seattle's.
4) A store has clearance items that have been marked down by 55%. They are having a sale, advertising an additional 30% off clearance items. What percent of the original price do you end up paying?
5) A friend has a 83% average before the final exam for a course. That score includes everything but the final, which counts for 15% of the course grade.
What is the best course grade your friend can earn?
%
What is the minimum score your friend would need on the final to earn a 75% for the course?
%
Give answers accurate to at least one decimal place.
6) A car is driving at 50 kilometers per hour. How far, in meters, does it travel in 3 seconds?
meters
Give your answer to the nearest meter.

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63.Think about it Rewrite each expression as an addition expression. -22 – (-34) ...

2. 24 – 15 – (-31)
-22+34 24+15+-31
Partner Practice: Rewrite each expression as an addition expression.
Subtraction Expression
Addition Expression
23 - 43
23+(-43)
19 - 68
19+(-68)
-14 - 43
-14+(-43)
-1 - 8
-1+(-8)
45 - (-14)
45+14
-23 - (-65)
-23+65
Evaluate Expression:
-23 - 15
-23+(-15)
-38
12 - 33 12+(-33) -21
14 – 23 + (-9) 14+-23+(-9) -9+(-9)
Melanie has $65 in her account. She spends $12 on a book and $40 on a bag. Her sister asks her “are you going to have enough money to contribute $15 towards mom’s birthday gift?” Melanie replies- “no problem!”
Understand:
Plan:
Estimate/Predict:
Solve:
Answer: Melanie _________________ have enough money to contribute to her mom’s birthday gift.
Think About it
Evaluate each expression using the addition rules we have developed.
6 + (-10)
-4
-11 + 19
8
-6 + (- 7) -13
-26
Independent Practice:
Evaluate Expression:
-33 – (-44)
11
27 – 48
27+(-48)
-16 – 22
-16+(-22)
Which equations below are not true statements? Select all that apply. Explain your selection.
71 – (-19) = 90
71 – 19 = 52
-71 – 19 = -52
-71 + 19 = -52
-71 – (-19) = -90
A submarine is at a depth of 12 meters below sea level. The submarine then descends 79 meters. What is the depth of the submarine now? (*descends means moving down)
Jennah was evaluating the expression -7 – 83 +14.
Here is her work:
-7 + 83 + 14
75 + 14
89
Do you agree or disagree with her answer? Explain your answer using complete sentences.
The Titans and the Broncos played football last week. The table below shows each team’s first five plays of the game.
Play
Titans
Broncos
1
Loss of 15 yards
Gain of 25 yards
2
Gain of 24 yards
Gain of 19 yards
3
Loss of 12 yards
Loss of 11 yards
4
Gain of 38 yards
Loss of 17 yards
5
Loss of 21 yards
Loss of 14 yards
I) Which team had gained more yards after the fifth play?
II) How many more yards did they gain?

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-4
-11 + 19
8
-6 + (- 7) -13
-26
Rewrite each expression as an addition expression.
-22 – (-34) 2. 24 – 15 – (-31)
-22+34 24+15+-31
Partner Practice: Rewrite each expression as an addition expression.
Subtraction Expression
Addition Expression
23 - 43
23+(-43)
19 - 68
19+(-68)
-14 - 43
-14+(-43)
-1 - 8
-1+(-8)
45 - (-14)
45+14
-23 - (-65)
-23+65
Evaluate Expression:
-23 - 15
-23+(-15)
-38
12 - 33 12+(-33) -21
14 – 23 + (-9) 14+-23+(-9) -9+(-9)
Melanie has $65 in her account. She spends $12 on a book and $40 on a bag. Her sister asks her “are you going to have enough money to contribute $15 towards mom’s birthday gift?” Melanie replies- “no problem!”
Understand:
Plan:
Estimate/Predict:
Solve:
Answer: Melanie _________________ have enough money to contribute to her mom’s birthday gift.
Independent Practice:
Evaluate Expression:
-33 – (-44)
11
27 – 48
27+(-48)
-16 – 22
-16+(-22)
Which equations below are not true statements? Select all that apply. Explain your selection.
71 – (-19) = 90
71 – 19 = 52
-71 – 19 = -52
-71 + 19 = -52
-71 – (-19) = -90
A submarine is at a depth of 12 meters below sea level. The submarine then descends 79 meters. What is the depth of the submarine now? (*descends means moving down)
Jennah was evaluating the expression -7 – 83 +14.
Here is her work:
-7 + 83 + 14
75 + 14
89
Do you agree or disagree with her answer? Explain your answer using complete sentences.
The Titans and the Broncos played football last week. The table below shows each team’s first five plays of the game.
Play
Titans
Broncos
1
Loss of 15 yards
Gain of 25 yards
2
Gain of 24 yards
Gain of 19 yards
3
Loss of 12 yards
Loss of 11 yards
4
Gain of 38 yards
Loss of 17 yards
5
Loss of 21 yards
Loss of 14 yards
I) Which team had gained more yards after the fifth play?
II) How many more yards did they gain?

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-10-10
-11 + 19
-8
-6 + (- 7) -13
Rewrite each expression as an addition expression.
-22 – (-34) 2. 24 – 15 – (-31)
-22+34 24+15+-31
Partner Practice: Rewrite each expression as an addition expression.
Subtraction Expression
Addition Expression
23 - 43
23+(-43)
19 - 68
19+(-68)
-14 - 43
-14+(-43)
-1 - 8
-1+(-8)
45 - (-14)
45+14
-23 - (-65)
-23+65
Evaluate Expression:
-23 - 15
-23+(-15)
-38
12 - 33 12+(-33) -21
14 – 23 + (-9) 14+-23+(-9) -9+(-9)
Melanie has $65 in her account. She spends $12 on a book and $40 on a bag. Her sister asks her “are you going to have enough money to contribute $15 towards mom’s birthday gift?” Melanie replies- “no problem!”
Understand:
Plan:
Estimate/Predict:
Solve:
Answer: Melanie _________________ have enough money to contribute to her mom’s birthday gift.
Independent Practice:
Evaluate Expression:
-33 – (-44)
-33+44
27 – 48
27+(-48)
-16 – 22
-16+(-22)
Which equations below are not true statements? Select all that apply. Explain your selection.
71 – (-19) = 90
71 – 19 = 52
-71 – 19 = -52
-71 + 19 = -52
-71 – (-19) = -90
A submarine is at a depth of 12 meters below sea level. The submarine then descends 79 meters. What is the depth of the submarine now? (*descends means moving down)
Jennah was evaluating the expression -7 – 83 +14.
Here is her work:
-7 + 83 + 14
75 + 14
89
Do you agree or disagree with her answer? Explain your answer using complete sentences.
The Titans and the Broncos played football last week. The table below shows each team’s first five plays of the game.
Play
Titans
Broncos
1
Loss of 15 yards
Gain of 25 yards
2
Gain of 24 yards
Gain of 19 yards
3
Loss of 12 yards
Loss of 11 yards
4
Gain of 38 yards
Loss of 17 yards
5
Loss of 21 yards
Loss of 14 yards
I) Which team had gained more yards after the fifth play?
II) How many more yards did they gain?

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-8
-6 + (- 7) -13
Make tweaks, leave comments, and share with others to edit at the same time.
NO THANKSUSE THE APP
Austin Cassista - Reteach Lesson 7 & 8
Think About it
Evaluate each expression using the addition rules we have developed.
6 + (-10)
-10-10
-11 + 19
-8
-6 + (- 7) -13
Rewrite each expression as an addition expression.
-22 – (-34) 2. 24 – 15 – (-31)
-22+34 24+15+-31
Partner Practice: Rewrite each expression as an addition expression.
Subtraction Expression
Addition Expression
23 - 43
23+(-43)
19 - 68
19+(-68)
-14 - 43
-14+(-43)
-1 - 8
-1+(-8)
45 - (-14)
45+14
-23 - (-65)
-23+65
Evaluate Expression:
-23 - 15
-23+(-15)
-38
12 - 33 12+(-33) -21
14 – 23 + (-9) 14+-23+(-9) -9+(-9)
Melanie has $65 in her account. She spends $12 on a book and $40 on a bag. Her sister asks her “are you going to have enough money to contribute $15 towards mom’s birthday gift?” Melanie replies- “no problem!”
Understand:
Plan:
Answer: Melanie _________________ have enough money to contribute to her mom’s birthday gift.
Independent Practice:
Evaluate Expression:
-33 – (-44)
-33+44
27 – 48
27+(-48)
-16 – 22
-16+(-22)
Which equations below are not true statements? Select all that apply. Explain your selection.
71 – (-19) = 90
71 – 19 = 52
-71 – 19 = -52
-71 + 19 = -52
-71 – (-19) = -90
A submarine is at a depth of 12 meters below sea level. The submarine then descends 79 meters. What is the depth of the submarine now? (*descends means moving down)
Jennah was evaluating the expression -7 – 83 +14.
Here is her work:
-7 + 83 + 14
75 + 14
89
Do you agree or disagree with her answer? Explain your answer using complete sentences.
The Titans and the Broncos played football last week. The table below shows each team’s first five plays of the game.
Play
Titans
Broncos
1
Loss of 15 yards
Gain of 25 yards
2
Gain of 24 yards
Gain of 19 yards
3
Loss of 12 yards
Loss of 11 yards
4
Gain of 38 yards
Loss of 17 yards
5
Loss of 21 yards
Loss of 14 yards
I) Which team had gained more yards after the fifth play?
How many more yards did they gain?

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struggling with, how is the answer 1?

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lity...
"As part of a probability experiment, Elliott is to answer 4 multiple-choice questions. For each question, there are 3 possible answers, only 1 of which is correct. If Elliott randomly and independently answers each question, what is the probability that he will answer the 4 questions correctly?"
Solving the question I keep getting 1/256. My reasoning is that each question has a 1/4 chance of being right if you guessed, so 1/4 x 1/4 x 1/4 x 1/4 = 1/256.
But my answer choices are as follows, with the correct answer being E:
A. 27/81
B. 12/81
C. 4/81
D. 3/81
E. 1/81
Am I missing something? Or am I just completely solving this wrong?

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69.1. What is the theoretical yield of Ag in grams if 65.00ml of 0.100M AgNO3 is reacted with an excess ...

of Cu metal?
2.If 1.25g of Cu is reacted with an excess of AgNO3 what mass of Ag should be expected?
3.If 125.00ml of 0.050M AgNO3 is reacted with 0.250g of Cu how much Ag would you produce in grams?
I appreciate it if any of u took your time to help me answer these :)

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70.Zoe the goat is tied by a rope to one corner of a 15 meter-by-25 meter rectangular barn in the ...

e of a large grassy field.Over what area of the field can Zoe graze if the rope is:
a) 12 meters long
b) 22 meters long
c) 28 meters long
d) Zoe is happiest when she has at least 400 m2
to graze. What possible lengths of rope could be used? ( answer is an inequality)

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m looking for is not the sun or the big bang.

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72.A bird has three alleles at a locus that controls wing color: W1, W2 and W3. W1 is dominant ...

nd W3; W1 produces blue wings. W2 is co-dominant to W3; W2W2 produces yellow wings, W3W3 produces green wings, and W2W3 produces green-spotted wings. The phenotypic frequencies in a population are as follows:
0.16 green
0.16 green spotted
0.04 yellow
0.64 blue
Assume that this population is in Hardy-Weinberg equilibrium: what is the frequency of the W1 allele in this population?
Group of answer choices
0.64
0.642
square root of 0.64
There’s not enough information to figure this out.
0.4

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73.I was told to do an investigation for my school where I found that the cost and energy used of ...

ances can vary between brands. I am given a follow-up question to answer which I am stuck on. The question is , " What are the implications of your findings for social or economic issues in Ontario?" Could you hello me answer this question?

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74.Twenty students are asked to select an integer between 1 and 10. Eight choose either 4, 5 or 6. a If ...

f the students make their choices independently and each is as likely to pick one integer
as any other, what is the probability that 8 or more will select 4,5 or 6?
b Having observed eight students who selected 4, 5, or 6, what conclusion do you draw based
on your answer to part (a)?A missile protection system consists of n radar sets operating independently, each with a
probability of .9 of detecting a missile entering a zone that is covered by all of the units.
a If n = 5 and a missile enters the zone, what is the probability that exactly four sets detect
the missile? At least one set?
b How large must n be if we require that the probability of detecting a missile that enters the
zone be .999?

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identified a rise in contacting STIs (sexually transmitted infections) among young adults and are interested in understanding why. The researchers measured several variables related to condom use including: likelihood of using condoms in the future, previous use of condoms, perceived ability for self-control in sexual relationships, and perceived risk for contracting STIs.
Method
This study is looking to understand why there has been a rise in sexually transmitted infections. Participants were asked to answer 4 different questions and the results were analyzed.
Participants: Participants include 100 men and women ages ranging from 18-38. The mean age in this experiment is 24 years old and there is an equal amount of men and women.
Name of Independent Variable(s): Provide a description of all independent (or grouping) variables, including their levels. Each variable should be described separately and the name of each new variable should be indented and underlined.
Name of Dependent Variable: Provide a description of the dependent variable, including how it was operationalized.
Following the description of all your variables you should clearly state (in a sentence) the research question you intend to investigate. Next, you should say something along the lines of, “This research has the following hypotheses:
Ha: State the alternate hypothesis in BOTH conceptual and statistical form.
H0: State the null hypothesis in BOTH conceptual and statistical form
Also I need to know what analysis to complete in spss

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lve an equation, find the derivative of a function at a point, or calculate the value of a definite integral. However, you must clearly indicate the setup of your question, namely the equation, function, or integral you are using. If you use other built-in features or programs, you must show the mathematical steps necessary to produce your results. Your work must be expressed in standard mathematical notation rather than calculator syntax.
Show all of your work, even though the question may not explicitly remind you to do so. Clearly label any functions, graphs, tables, or other objects that you use. Justifications require that you give mathematical reasons, and that you verify the needed conditions under which relevant theorems, properties, definitions, or tests are applied. Your work will be scored on the correctness and completeness of your methods as well as your answers. Answers without supporting work will usually not receive credit.
Unless otherwise specified, answers (numeric or algebraic) need not be simplified. If your answer is given as a decimal approximation, it should be correct to three places after the decimal point.
Unless otherwise specified, the domain of a function f is assumed to be the set of all real numbers x for which f(x) is a real number.
Let f be a twice-differentiable function such that f′(2)=0 . The second derivative of f is given by f′′(x)=x2e2−x−1 for 0≤x≤6 .
(a) On what open intervals contained in 0
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5 percent (annual) interest on their 180-day (6 months) deposits. On similar deposits, American banks pay 1.5 percent (annual.) Assuming that the 180-day forward rate of Swiss franc is $1.045,
Do you see an arbitrage opportunity between these two countries? Briefly explain.
If your answer were yes, how you would be able to take advantage from it and how much you would make on $100,000 investment?
The arbitrage transactions are expected to be followed by some adjustments in the market which will eventually make the arbitrage opportunity disappear. What kind of adjustment do you expect to see in each of the following?
The US interest rate
The spot exchange rate between the dollar and the Swiss franc
The 6-month forward rate between the dollar and the Swiss franc
The Swiss interest rate

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or comparing groups in observational and randomized controlled studies, examine Michelle Bachman’s claim about vaccines linked in the video segment:
“There's a woman who came up crying to me tonight after the debate. She said her daughter was given that vaccine (HPV). She told me her daughter suffered mental retardation as a result of that vaccine. There are very dangerous consequences. It's not good enough to take, quote, 'a mulligan' where you want a do-over, not when you have little children's lives at risk.
She told me that her little daughter took that vaccine, that injection, and she suffered from mental retardation thereafter. It can have very dangerous side effects. The mother was crying what she came up to me last night. I didn't know who she was before the debate. This is a very real concern and people have to draw their own conclusions."
Why is this argument a good candidate for a questionable cause fallacy? What is Bachman’s premise? What is her conclusion?
Answer here.
Premise: ??
Conclusion: ??

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80.The probability a 25 year old male passes away within the year is .001430. He pays $275 for a one ...

ar $152000 life insurance policy. What is the expected value of the policy for the insurance company? Round your answer to the nearest cent.

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81.A 1.05 kg block is attached to a spring with spring constant 13 N/m . While the block is sitting ...

rest, a student hits it with a hammer and almost instantaneously gives it a speed of 35 cm/s . What is the block's speed at the point where x=0.10A?
Express your answer in centimeters per second.

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k of 10 cards numbered 1-10. I draw 5 cards (each time i draw i put the card back and shuffle). The numbers were 8, 2, 4, 9, and 4. What is the probability that it will be 4 on the 6th time i draw? I know each card has a 10% chance of being drawn. I also know the probability of a 10% event happening twice is 1%. But wouldnt the odds be lower since i drew 4 a couple trials earlier? How exactly would i calculate that. If there is an online calculator that executes the answer id like to know. Just a college student who craves probability. :)

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nbow is the shape of a parabola.
The equation for this parabola is y = -x2 + 36.
Graph of a parabola opening down at the vertex 0 comma 36 crossing the x–axis at negative 6 comma 0 and 6 comma 0.
Create a table of values for a linear function. A drone is in the distance, flying upward in a straight line. It intersects the rainbow at two points. Choose the points where your drone intersects the parabola and create a table of at least four values for the function. Remember to include the two points of intersection in your table.
Analyze the two functions. Answer the following reflection questions in complete sentences.
What is the domain and range of the rainbow? Explain what the domain and range represent. Do all of the values make sense in this situation? Why or why not?
What are the x- and y-intercepts of the rainbow? Explain what each intercept represents.
Is the linear function you created positive or negative? Explain.
What are the solutions or solution to the system of equations created? Explain what it or they represent.

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rd deviation of $17,093. We are interested in the true average college tuition in the U.S.
a. What parameter are we estimating?
b. What is the point estimate of that parameter?
c. Build the margin of error for 95% confidence interval for the true average college tuition in the U.S. (Show work for credit)
d. Using your answer in part c, build a 95% confidence interval for the true average college tuition in the U.S.
e. Interpret your interval in part d.
.

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in the exam. Every topic is equally likely to appear in the exam.
What is the expected number of topics that the student has covered that will appear in the exam ? Give your answer to two decimal places.

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oups were used (lawyer, physical therapist, cabinetmakers, and system analysts). The results obtained for a sample of 5 individuals from each groups. Using the "ANOVA Output" below, please answer the following questions ( Use the significance level 5%).
Q1. The value of the test statistic is ____________
QUESTION 2
Q2. The p- value of the test is _________________
QUESTION 3
Q3. At the 5% significance level, the null hypothesis is rejected if the value of the F statistics is >= _________________
QUESTION 4
Q4. Interpret the ANOVA result at the 5% significance level. Is there any difference in the job satisfaction among the four occupational groups? Answer either yes or no. Explain the reason of your answer statistically.
QUESTION 5
Data from a Trucking Company is Southern California were utilized to examine the relationship among total daily travel time (y), miles to traveled (X1), and the number of deliveries (x2). Based on the "Regression Output" below, please answer the following questions.
Q5. The number of sample used in this regression analysis is______________
QUESTION 6
Q6. What is the value of the coefficient of determination?
QUESTION 7
Q7. What is the F test statistic value for the regression model significane test?
QUESTION 8
Q8. What is the predicted travel time for X1 =95, and X2= 6?
QUESTION 9
Q9. Is X2 (number of deliveries) related to Y (travel time)? Answer either yes or no. Explain the reason of your answer statistically.
ATTACHED ARE GRAPHS

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I got g^-1(x)=1x+1 but my answer sheet told me that it’s g^-1(x)=1/x+1 so I don’t now what I seem to be doing wrong this isn’t the only problem

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ere 45 Republicans and 55 Democrats*. Use this information to answer the following.
*Technically, 2 of these Senators were Independents or Independent Democrats, but caucused with the Democratic Party.
Remember the rounding convention for a decimal value with more than 3 zeroes is to round to the second non-zero digit.
If we choose a committee of 10 at random, what is the probability that they will all be Republicans?

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rt. How does it make u pay less interest and have less interest:
Vn+1 = 1.00405Vn - 1817.35, Vo= 34400
The term of the loan is 30 years with monthly payment of 1817.35 at an interest rate of 4.86 p.a
Pls tell me the answer regarding this particular equation
Q2) How much of the principal has been repaid? Fv - Vo is this the correct formula
Q3) Superannuation
Something like if u add money without tax why does it benefit your super account
I’m sorry to disturb you but I was hoping you could help as tmrw is my last writing lesson for my sac

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vessels are randomly targeted and destroyed, what is the probability that at least 6 vessels transporting nuclear weapons were destroyed? Express your answer as a fraction or a decimal number rounded to four decimal places.

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e forecast calls for a 70% chance of snow on Saturday and a 50% chance of snow on Sunday. What is the probability that it will snow both days?
I think the answer is 35% but my teacher disagrees. (0.7 x 0.5 = 0.35)
Can you help me?

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e forecast calls for a 70% chance of snow on Saturday and a 50% chance of snow on Sunday. What is the probability that it will snow both days?
I think the answer was 35% but my teacher disagrees. Can you help me?

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97.Subject Business Ethics: The Hawaii State Department of Health has agreed to settle for $2 million a ...

llion a fine against Koyo USA Corp. for violations at its Big Island water bottling plant, state officials said Monday.
The company, which markets its filtered bottled ocean water in Hawaii and Japan under the band name Mahala Hawaii Deep Sea, paid $1 million to the Health Department on May 2 and must make the second payment by Aug. 31, 2013, health officials said.
The Health Department had fined the company $5 million for the violations in September 2011 after an investigation found it had been using an unapproved manufacturing process since 2006.
None of the company’s bottled waters was recalled and health officials said there was no threat or risk to human health, as confirmed by test results from independent laboratories and the state lab.
Koyo continues to operate its facility at the Natural Energy Laboratory of Hawaii Authority in Kailua-Kona.
Statement: The government should fine companies that do not follow procedures.
1. Present arguments (as many as you can think of) in support of the government why it is justified to fine Koyo.
2. Present arguments (as many as you can think of) in support of why Koyo should be allowed to do what it did.
3. What is your position?
4. Should the government be allowed to do this in some industries but not all? Why or why not?
WRITE YOUR ANSWER UNDER FOUR CLEARLY MARKED SUBHEADINGS (SEE BELOW) REFERRING TO THE FOUR ABOVE.
1. FOR THE MOTION:
2. AGAINST THE MOTION:
3. MY POSITION:
4. DISCUSSION:

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98.The Hawaii State Department of Health has agreed to settle for $2 million a fine against Koyo ...

Corp. for violations at its Big Island water bottling plant, state officials said Monday.
The company, which markets its filtered bottled ocean water in Hawaii and Japan under the band name Mahala Hawaii Deep Sea, paid $1 million to the Health Department on May 2 and must make the second payment by Aug. 31, 2013, health officials said.
The Health Department had fined the company $5 million for the violations in September 2011 after an investigation found it had been using an unapproved manufacturing process since 2006.
None of the company’s bottled waters was recalled and health officials said there was no threat or risk to human health, as confirmed by test results from independent laboratories and the state lab.
Koyo continues to operate its facility at the Natural Energy Laboratory of Hawaii Authority in Kailua-Kona.
Statement: The government should fine companies that do not follow procedures.
1. Present arguments (as many as you can think of) in support of the government why it is justified to fine Koyo.
2. Present arguments (as many as you can think of) in support of why Koyo should be allowed to do what it did.
3. What is your position?
4. Should the government be allowed to do this in some industries but not all? Why or why not?
WRITE YOUR ANSWER UNDER FOUR CLEARLY MARKED SUBHEADINGS (SEE BELOW) REFERRING TO THE FOUR ABOVE.
1. FOR THE MOTION:
2. AGAINST THE MOTION:
3. MY POSITION:
4. DISCUSSION:

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survey of all their employees found that employees were required to respond to an average of 50 work-related emails per week with a standard deviation of 1.5 emails per week. However, an employee advocacy group believes the average number of work-related emails Indigo Insurance Company employees are now required to respond to is more than 50 emails per week.
To investigate this further, the employee advocacy group took a random sample of 20 staff employed by Indigo Insurance Company during the second week of March 2018,and asked these employees to record the number of work-related emails to which they were required to respond.
(b). What does the highlighted section of the distribution in Figure 1 represent?
(c). The random sample of 20 employees of Indigo Insurance Company taken by the employee advocacy group turned out to have a mean of 50.8 work-related emails to respond to in that week. Does this sample look like it belongs to the sampling distribution displayed in Figure 1? Justify your answer.
(d). Given the sample was randomly selected and that the number of work-related emails each employee was required to respond to was recorded accurately, what conclusion can we reach from part (c)?
To answer questions (b) to (d), consider the sampling distribution shown in Figure 1.

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ned online. Using technology, with x representing the ratings and y representing price, we find that the regression equation has a slope of 130 and a y-intercept of negative 363. Complete parts (a) and (b) below.
a. What is the equation of the regression line? Select the correct choice below and fill in the answer boxes to complete your choice.

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ing? We are learning about New Historicism and are required to answer this question relating to "How to Kill a Mockingbird"

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ds
here is the post:
Good evening Joseph,
Your forum post this week sparked my interest because of your two debatable topics. Your week 5 topic of "Should churches be taxed or exempted", will be an interesting read. As a person who grew up in the church and seeing what it offers, I am for churches being tax exempt. The money saved from taxes in the end helps the community.
Your second debatable really stuck a cord with me. I hate how reliant we as a society we have become on our cell phones. I use mine a lot, but have being trying for a few months now to be less reliant on it. Kids are at school to learn, not be on their cell phones. The teachers should be teaching and paying attention to the students and not on their cell phones. I am curious, when you say banned, so you mean not even on school property, or just not allowed to be used during school hours? My 13 year old son takes his cell phone to school in his back pack, but we have talked to him about when he can use it. It;s mainly for after school activities, so he can let us know when he needs to be picked up.
I look forward reading your papers.
Thomas F. Wright

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ter, its speed is 7.2 m/s.
What is its average acceleration? The acceleration
of gravity is 9.8 m/s^2.
Answer in units of m/s^2.
B) What is the average value of the coefficient of
kinetic friction between puck and ice?
C) How far does the puck travel during this 7 s
interval?
Answer in units of m.

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t way to do that would be to investigate her students’ test performance in a number of ways.
The first thing she did was separate her students’ test scores based on the time of day she held her lectures (morning vs evening). Next she recorded the type of test students were writing (multiple choice vs short answer). She selected a random sample of students from her morning (n = 6) and evening (n = 7) classes (total of 13) and recorded scores from two of their tests as shown below.
Morning
Evening
Multiple Choice
Short Answer
Multiple Choice
Short Answer
66
74
70
45
64
55
80
55
72
77
78
55
70
57
84
60
61
58
64
70
67
69
84
60
70
63
DATA Set 1:
Good morning sunshine. Is Time of Day important?
1. Prof. Maya recently read an article that concluded students retained more information when attending classes in the morning. Based on this finding she thought students in her morning class might have performed differently on their Short Answer test scores when compared to students in her evening class. Does the data support her hypothesis? [15 points]
Multiple Guess! Does Exam Type matter?
2. Prof. Maya also knew that students often did better on multiple-choice tests because they only have to recognize the information (rather than recall it). Given this, she thought students attending the morning class might perform differently on the Multiple-Choice test when compared to the Short Answer test. Does the data support her hypothesis? [15 points]
DATA Set 2:
We’ll try anything once. Does the new Tutorial Plan work?
3. Combining all of her students (and ignoring time of day), Prof. Maya asked her TAs to try a new – and very expensive - tutorial study plan. She then chose a random sample of 20 students to receive the new study plan and another sample of 30 to continue using the old study plan. Following an in-class quiz, she divided the students into 3 levels of achievement (below average, average, and above average), and then created the frequency table below. Does the new expensive tutorial study plan improve student performance? [15 points]
Below average
Average
Above Average
New plan
7
7
6
Old plan
6
15
9
DATA Set 3:
How are YOU doing?
4. Finally, Prof. Maya thinks that her 2018 class is doing better than her 2017 class did. She decided to collect a sample of test scores from the students in her course this year (combining all of the groups) and compare the average with her previous year’s class average. Does the data support her hypothesis? [15 points]
The 2017 class average = 63%
The 2018 sample size = 25
The 2018 sample standard deviation = 11
The 2018 sample average = use your actual midterm mark (yes, you the student reading this :)
Bonus: What does it all mean?
5. Bonus: IF Prof. Maya had complete control of how and when she ran her course in 2018, considering all the info you just found in the 3 data sets, write a brief statement of how you would recommend she set-up the course next year – and explain why. [5 points]

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t way to do that would be to investigate her students’ test performance in a number of ways.
The first thing she did was separate her students’ test scores based on the time of day she held her lectures (morning vs evening). Next she recorded the type of test students were writing (multiple choice vs short answer). She selected a random sample of students from her morning (n = 6) and evening (n = 7) classes (total of 13) and recorded scores from two of their tests as shown below.
DATA Set 1:
Good morning sunshine. Is Time of Day important?
1. Prof. Maya recently read an article that concluded students retained more information when attending classes in the morning. Based on this finding she thought students in her morning class might have performed differently on their Short Answer test scores when compared to students in her evening class. Does the data support her hypothesis? [15 points]
Multiple Guess! Does Exam Type matter?
2. Prof. Maya also knew that students often did better on multiple-choice tests because they only have to recognize the information (rather than recall it). Given this, she thought students attending the morning class might perform differently on the Multiple-Choice test when compared to the Short Answer test. Does the data support her hypothesis? [15 points]
DATA Set 2:
We’ll try anything once. Does the new Tutorial Plan work?
3. Combining all of her students (and ignoring time of day), Prof. Maya asked her TAs to try a new – and very expensive - tutorial study plan. She then chose a random sample of 20 students to receive the new study plan and another sample of 30 to continue using the old study plan. Following an in-class quiz, she divided the students into 3 levels of achievement (below average, average, and above average), and then created the frequency table below. Does the new expensive tutorial study plan improve student performance? [15 points]
Below average
Average
Above Average
New plan
7
7
6
Old plan
6
15
9
DATA Set 3:
How are YOU doing?
4. Finally, Prof. Maya thinks that her 2018 class is doing better than her 2017 class did. She decided to collect a sample of test scores from the students in her course this year (combining all of the groups) and compare the average with her previous year’s class average. Does the data support her hypothesis? [15 points]
The 2017 class average = 63%
The 2018 sample size = 25
The 2018 sample standard deviation = 11
The 2018 sample average = use your actual midterm mark (yes, you the student reading this :)
Bonus: What does it all mean?
5. Bonus: IF Prof. Maya had complete control of how and when she ran her course in 2018, considering all the info you just found in the 3 data sets, write a brief statement of how you would recommend she set-up the course next year – and explain why. [5 points]

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he efficacy of this spending is therefore relatively important. When it comes to contagious diseases, there are generally two strategies that can be adopted. The first involves prevention, which includes vaccinations to lower or eliminate the risk of contracting a disease. The second involves treatment of those unfortunate enough to get sick, treatment typically requires some form of a drug. Since pharmaceutical companies can produce both vaccines and drugs, we would like to understand the incentives they have to develop each type of medicine. To explore this question, consider a population of 100 consumers, 90 of whom have a low disease risk, say 10%. The remaining ten have a high risk – to make things simple, assume they are certain to contract the disease. In addition, suppose the disease generates personal harm equal to the loss of $100 for each individual when they are infected. Suppose also that pharmaceuticals of either form (vaccines or drugs) are costless to produce (once R & D has occurred) and are perfectly effective
Question 2. What price would a profit maximising monopolist charge for a vaccine? What are the monopoly profits on the vaccine? What is the efficient outcome (i.e. SMB = SMC)? What is the welfare under the monopoly and at the efficient allocation?
Question 3.Now consider the demand for the drug (assume that the vaccine is not available). Construct the demand function for the drug and plot it on a diagram. What price would a profit maximising monopolist charge for the drug? What are the monopoly profits from the drug? What is the efficient outcome? What is the welfare under the monopoly and at the efficient allocation?
Question 4. If the R&D costs of the vaccine and drug are the same, what will the pharmaceutical company do? Explain your answer in terms of the variation in the willingness to pay and the size of the R& D costs. What would a social planner do?
Question 5. What are the R&D cost for the vaccine and the R&D cost for the vaccine drug that would make a pharmaceutical company indifferent between developing the vaccine and the drug? Is the social planner indifferent in this case? Explain any difference.

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each type of classification error.
[Note that all bank models here include only profits and losses within three years of when a card is issued, so the impact of out-years (years beyond 3) can be ignored.]
Cost Per False Negative: $5000
Cost Per False Positive: $2500
For the 600 individuals that were automatically given cards without being classified, the total cost of the experiment turned out to be 25%*($5000)*600 or $750,000. This is $1,250 per event.
Only models with lower cost per event than $1,250 should have any value.
Question: What is the threshold score on the Training Set data for your model that minimizes Cost per Event? You will need this number to answer later questions.
Hint: Using theAUC Calculator Spreadsheet, identify which Column displays the same cost-per-event (row 17) as the overall minimum cost-per-event shown in Cell J2. The threshold is shown in row 10 of that Column. What the threshold means is that at and above this number everything is classified as a "default."

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each type of classification error.
[Note that all bank models here include only profits and losses within three years of when a card is issued, so the impact of out-years (years beyond 3) can be ignored.]
Cost Per False Negative: $5000
Cost Per False Positive: $2500
For the 600 individuals that were automatically given cards without being classified, the total cost of the experiment turned out to be 25%*($5000)*600 or $750,000. This is $1,250 per event.
Only models with lower cost per event than $1,250 should have any value.
Question: What is the threshold score on the Training Set data for your model that minimizes Cost per Event? You will need this number to answer later questions.

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viduals differ from people in general in remembering threatening information. The memory performance of an individual for negative words was measured and was found to have a score of 48. The population average is 34 with a standard deviation of 9. At the 5% level of significance what should you conclude about whether clinically anxious individuals have a tendency to remember threatening words?
(a) Clearly state null and research hypotheses in terms of the mean scores on the memory performance on negative words, μ, of anxious individuals.
(b) What is the comparison distribution for the sample’s Z score?
(c) What are the cut-off values for a test with significance level 0.05?
(d) What is the observed Z score?
(e) What is your conclusion?
An educational psychologist was interested in whether children who grow up in bilingual settings have an advantage of distraction resistance compared with children in general. The distraction resistance test was administered to a randomly chosen child with bilingual upbringing background who was found to have a score of 69. The population average is 60 with a standard deviation of 3. Do children with bilingual upbringing background score higher on distraction resistance test than children in general? Use the 1% level of significance.
(a) Clearly state null and research hypotheses in terms of the mean scores on distraction resistance, μ, of children with bilingual upbringing.
(b) What is the comparison distribution for the sample’s Z score?
(c) What are the cut-off values for a test with significance level 0.01?
(d) What is the observed Z score?
(e) What is your conclusion?

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of 6 times, and then increases by 1.7% a total of 4 times. By what overall percent did the price decrease?
Round your answer to the nearest tenth of a percent.

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Hash( const string & key, const int h_size )
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36-38.
Chapters 28-35
Did any events in Chapters 28-35 seem unrealistic, or improbable, to you? Explain.
What happens to Jane on the way to Marsh End? What does Jane’s reaction to the news reveal about her?
How does St. John help Jane? What news does he bring to Jane? What does Jane’s reaction to the news reveal about her?
Why does St. John ask Jane to come to India with him as his wife? How does she answer him? What do you think Jane means when she says, “If I join St. John, I abandon half myself?”
Jane comes close to changing her mind about marrying St. John. Why? What does her response to Rochester’s voice suggest about her values and feelings? What conflicts seem to be troubling her?
What kinds of images does Bronte use to describe St. John? Give two examples. Why are these images appropriate?
Chapters 36-38S
Did you find the ending of the novel satisfying? Why or why not?
What shock does Jane receive when she returns to Thornfield? What does she learn about its inhabitants?
How does Rochester say he felt in Jane’s absence? What spiritual change has occurred in Rochester?
Do Jane and Rochester still feel the same way about each other? Explain.
In what way have the roles in Jane and Rochester’s relationship reversed?
Is the situation at the end ironic?

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36 Using your knowledge of probability, why should Nizar have known that his answer was NOT correct and gone back to review his calculations?
2. A four-colored spinner was spun 80 times. The spinner landed on green 15 times, yellow 30 times, blue 10 times, and red 25. Based on this data, what is the experimental probability of the spinner landing on green? (Write your answer as a fraction in lowest terms.)
3. If the probability that a certain mechanical part in your new car will fail this year is 0.05, what is the probability that the mechanical part will not fail this first year?
4. A coin is loaded so that the probability of getting tails is 1/4. If the coin is flipped twice, what is the probability of getting tails twice?
5.If a 6-sided die is tossed and then a coin is flipped, what is the probability that an odd number is rolled and the coin lands on heads?
6.A field goal kicker makes 3 of every 7 attempts at a field goal. If he kicks 4 field goals in a certain game, what is the probability that he'll make all four? (Write your answer as a fraction in lowest terms.)

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o possible solutions and what do they mean? Give an example of your own and explain what each answer would look like.

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is a multiple of three or greater than eight.
A certain game consist of rolling a single fair die and pays off as follows nine dollars for a six, six dollars for a five, one dollar for four and no payoffs otherwise.Find the expected winnings for this game.
A fair die is rolled four times. A 6 is considered success While all other outcomes are failures find the probability of three successes.
A pet store has nine puppies including 4 poodles 3 terriers and 2 retrievers. If Rebecca an errand in that order each select one puppy at random without replacement find the probability that Aaron select a retriever given that from last Rebecca selects a poodle.
Experience shows that a ski lodge will be for (166 guests) if there is a heavy snowfall in December, well only partially full (52 guests) With a light snowfall. What is the expected number of guests if the probability for a heavy snowfall is 0.40? I assume that heavy snowfall and light snowfall are the only two possibilities.
A pet store has six puppies Including two poodles two Terriers and to retrievers. If Rebecca and Aaron in that order each select one puppy random with replacement (They both may select the same one) Find the probability That Rebecca selects a terrier and Aaron selects a retriever.
Three married couples arrange themselves randomly in six consecutive seats in a row. Determine (A) the number of ways the following event can occur, And (B) the probability of the event. (The denominator of the probability fraction will be 6!=720, The total number of ways to arrange six items ). Each man was that immediately to the right of his wife.
A coin is tossed five times. Find the probability that all our heads. Find the probability that at least three are heads.
A certain prescription drug is known to produce undesirable facts and 35% of all patients due to drug. Among a random sample of a patient using a drug find the probability of the stated event. Exactly 5 have undesired effects.
10,000 raffle tickets are sold. One first prize of 1600, for second prizes of 800 each, And 9/3 prizes of 300 each or to be awarded with all winners selected randomly. If you purchase one ticket what are your expected winnings.
Suppose a charitable organization decides to Raise money by raffling A trip worth 500. If 3000 tickets are sold at one dollar each find the expected net winnings for a person who buys one ticket. Round to the nearest cent
Three men and seven women are waiting to be interviewed for jobs. If they are selected in random order find the probability that all men will be interviewed first
A fair diet is rolled. What is the probability of rolling on our number or a number less than three.
The pet store has 15 puppies, including five poodles, five Terriers, and five retrievers. If Rebecca and Aaron, in that order, select one puppy at random without replacement, find the probability that both select a poodle
Beth is taking a nine question multiple-choice test for which each question Has three answer choices, only one of which is correct. Beth decides on answering By rolling a fair die And making the first answer choice if the die shows one or two, The second If the die shows three or four, and the third if the die shows five or six. Find the probability of the stated event. Exactly 6 correct answers
For the experiment of drawing a single card from a standard 52 card deck find (a) the probability and (b) the odds are in favor that they do not drive six

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your role in income inequality, if any?.... the 2nd question is : why does income inequality exist?

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1.AU MAT 120 Systems of Linear Equations and Inequalities Discussion

mathematicsalgebra Physics