for what values of k the roots of the equation x x k are real

umber from 2 to 9, and evaluate its values for the following values of x: -20,-15,-10,10,15,20. What do you observe?

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

2,3,4,7). If it lands tails, a fair six-sided die is thrown (with values 3,4,5,6,7,9). Regardless of which die is used, Alice eats n grains of rice, where n is the largest prime factor of the die result (for example, the largest prime factor of 9 is 3). (a) What is the conditional probability that the coin lands heads, given that Alice eats three grains of rice? (b) Suppose that the entire experiment is conducted twice on the following day (starting with a new coin toss on the second run-through). What is the conditional probability that the coin lands heads on both run-throughs, given that Alice eats a total of five grains of rice during the two run-throughs? (Do not count the two grains from part (a) in part (b); we assume two brand new experiments, each with a new coin toss. Start your solution by defining a suitable partition of the sample space. Please use an appropriate notation and/or justification in words, for each value that you give as part of your solution.) Exercise 5) Alice and Bob throw an unfair coin repeatedly, with probability 2/5 of landing heads. Alice starts with £2 and Bob starts with £3 . Each time the unfair coin lands heads, Alice gives Bob £1 . Each time the unfair coin lands tails, Bob gives Alice £1 . The game ends when one player has £5 . (a) Draw a labelled Markov chain describing the problem, and write down a transition matrix P. Write down the communication classes, and classify them as either recurrent or transient. (b) Using the transition matrix, calculate the probability that Alice loses all of her money in exactly four tosses of the unfair coin. (c) Calculate the (total) probability that Alice loses all of her money (before Bob loses all of his). (d) Calculate the expected (mean) number of tosses of the unfair coin, for the game to end.

reasoning. Response: Possible values for a in this problem would be a-6. Possible values for b can be any number both positive or negative. Is the argument sound or flawed? Explain why you believe it is sound or flawed.

audience. This assignment will focus on how criteria can change and how you need to tailor your essay to these changing audiences. In good times, people may want homes with soaring entryways, lots of space and premium appliances. In tougher times, they may care more about efficient use of space, quality insulation, and energy efficient appliances. When gas prices are low, people love to buy SUVs and trucks, but when gas prices get higher, they prefer hybrid cars with good fuel efficiency. Think of two scenarios, much like the ones above, where different audiences or different times create different criteria for evaluation. For example, what impact might global warming have on the way we determine desirable places to live or vacation? How might a changing economy change the way we view successful careers? If people across the globe continue to put on weight, how might standards of beauty change? Si i have this assignment for English I just don't understand it here is the assignment: Explore two scenarios in which change might revise customary values and standards for evaluation. Each scenario should be a paragraph of at least 100 words in length.

ing 9.8 m/s after 1 second, 19.6 m/s after 2 seconds, and so on. Use the data values in your table to sketch a rough graph of velocity versus time for the 10° angle and another for the 40° angle. What value do the slopes of these graphs represent? Which graph has the greater slope? Why?

Use your result in (a) to solve the system: ■(x&+2y&+z&=1@x&y&+2z&=2@x&+y&+2z&=3) Question#2 (5) (modified from #13 p. 102 in your book) Solve the matrix equation for X X[■(1&1&1@1&2&0)]=[■(1&1&1@3&4&2)] Question#3 (5) (modified from #9 p. 102 in your book) Let [■(a&0&b&2@0&a&3&6@0&a&b&c+2)] be the augmented matrix of a linear system. Find for what values of a,b,c the system has: (i) a unique solution (ii) a one-parameter solution (iii) a two-parameter solution iv) no solution Question#4 (7) Write the matrix A=[■(-1&1&-1@1&1&-1@1&-1&2)] as a product of elementary matrices Question#5 (3) Find the determinant by any method: |■(0&-1&0&0&1@1&1&1&3&1@1&2&3&1&2@1&-1&0&3&1@1&-1&1&0&1)| Question#6 (3-2)Given thissystem: ■(x_1&+2x_2&+x_3&=1@x_1&-〖3x〗_2&+0x_3&=2@x_1&+0x_2&+2x_3&=3) a) Use Cramer’s method to solve for x_1 only b) Solve for the other variables by any method.

de by credit card; you think this is true at your store as well. On a typical day you make 20 sales. Show that this situation can be modeled by a binomial distribution. For credit, you must discuss each of the criteria required for a binomial experiment. Define the random variable x in this scenario, using the context of the problem. List all possible values of x for this situation. On one trial for this scenario, what does “success” mean? Explain using the words of the problem. What is the probability of success in this scenario? What is the probability of failure in this scenario? Probability Distribution Instructions¬¬¬¬ In Excel, create a probability distribution for this scenario. Label Column A as “x” and Column B as “P(x).” In Column A, list the numbers 0 to 15. In Column B, use BINOM.DIST.RANGE to calculate the probability for each x value. Highlight the probability cells, then right click and select Format Cells. Format the probability cells as “Number” and have Excel show 4 decimal places. Create a probability histogram using the probabilities you calculated. Format and label it properly. Be sure to use the “Select Data” button to change the x-axis so it correctly lists the x-values.

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.

de the printout below. Use these values as estimates of the mean and standard deviation found in the population of all low prices. Suppose that the low prices were normally distributed (regardless of what your data may indicate). Find the proportion of all low prices that would be between $20 and $50 in the population. I want you to show your work. To receive full credit, you should include pictures of the normal curve (labeled with both x and z-values) with the pertinent probabilities shaded in the picture

hat is the equation of the line passing through the points ? (iii) Using the equation of the line. For a y value of 28, what is the x value?

to have an error? Discuss two ways you could improve your accuracy.

t2 + 20t +2 where t is the time in seconds after the ball is thrown. a) Graph the equation using desmos (if you can take a screen shot of it and include it) b) Why do we use only positive values of h and t? c) What is the height of the ball 1 second after it is thrown? d) What is the maximum height of the ball? e) How long does it take for the ball to reach the maximum height? f) For how long is the ball more than 10 m above the ground?

rees of freedom. Another one is a degree-14 polynomial (with 15 degrees of freedom). What would we expect to see in terms of the fit around the boundary (where predictor values are very small or very large.) & Is there a relationship between the number of cuts of step functions and the model’s flexibility? If so, please explain.

ir ice cream. At the current exchange rate of .989 USD to 1 Swiss franc (CHF), the cost of chocolate in francs of ₣40,317,492 comes to $39,874,000. Variations in the exchange rate will affect Ken and Terry’s earnings before tax. a. Assume no hedge is undertaken and exchange rates may take the values of .969, .989. 1.009, and 1.029. What will be the impact on Ken and Terry’s earnings before tax with each exchange rate? (6 points) b. You suggest a call option with a strike price of .989 and a call premium of 2.35%. Show how this will affect Ken and Terry’s cash flows. (6 points) c. Another option is to enter into a forward contract at a forward offer rate of .999. How will this affect Ken and Terry’s cash flows? (5 points) d. Do you recommend the call option or the forward contract? Explain. (3 points) 4. Ken and Terry’s would like to undertake a corporate value-at-risk calculation based on two risk factors of cream and chocolate. They estimate the following “returns” on these inputs by the mark-up on their finished product relative to input prices. Cream is more prevalent than chocolate; it makes up 80% of the mark-up while chocolate makes up 20%. Other data they have gathered is as follows: Cream: expected return = 30% variance of return = .10 Chocolate: expected return = 20% variance of return = .06 covariance of cream and chocolate = .04 What is the largest decrease in return that Ken and Terry can expect with 99% confidence? (10 points)

ch as 44,46,48,50,52,54,56 .. 1) determine what percent of the students are taller than 55 inches? 2) determine cut off value for the shortest 25% ? (round your answer for 2 to 4 decimals) ?

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?