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1.Part I. Reaction Paper Read and understand the text below. Follow outline in writing your reaction paper at least 250-750 ...

paper at least 250-750 words. 1. Introduction 2. Thesis Statement 3. Supporting details 4. Conclusion The Digital Divide: The Challenge of Technology and Equity (1) Information technology is influence the way many of us live and work today. We use the internet to look and apply for jobs, shop, conduct research, make airline reservations, and explore areas of interest. We use Email and internet to communicate instantaneously with friends and business associates around the world. Computers are commonplace in homes and the workplace. (2) Although the number of internet users is growing exponentially each year, most of the worlds population does not have access to computers of the internet. Only 6 percent of the population in the developing countries are connected to telephones. Although more than 94 percent of U.S households have telephones, only 56 percent have personal computers at home and 50 percent have internet access. The lack of what most of us would consider a basic communication necessity the telephone does not occur just in developing nations. On some Native American reservations only 60 percent of the residents have a telephone. The move to wireless connectivity may eliminate the need for telephone lines, but it does not remove the barrier to equipment costs. (3) Who has internet access? The digital divide between the populations who have access to the internet and information technology tools and those who dont is based on income, race, education, household type, and geographic location, but the gap between groups is narrowing. Eighty-five percent of households with an income over $75,000 have internet access, compared with less than 20 percent of the households with income under $15,000. Over 80 percent of college graduates use the internet as compared with 40 percent of high school completers and 13 percent of high school dropouts. Seventy-two percent of household with two parents have internet access; 40 percent of female, single parent households do. Differences are also found among households and families from different racial and ethnic groups. Fifty-five percent of white households, 31 percent of black households, 32 percent of Latino households, 68 percent of Asian or Pacific Islander households, and 39 percent of American Indian, Eskimos, or Aleut households have access to the internet. The number of internet users who are children under nine years old and persons over fifty has more than triple since 1997. Households in inner cities are less likely to have computers and internet access than those in urban and rural areas, but the differences are no more than 6 percent. (4) Another problem that exacerbates these disparities is that African-American, Latinos, and Native Americans hold few of the jobs in information technology. Women about 20 percent of these jobs and receiving fewer than 30 percent of the Bachelors degrees in computer and information science. The result is that women and members of the most oppressed ethnic group are not eligible for the jobs with the highest salaries at graduation. Baccalaureate candidates with degree in computer science were offered the highest salaries of all new college graduates. (5) Do similar disparities exist in schools? Ninety-eight percent of schools in the country are wired with at least one internet connection. The number of classrooms with internet connection differs by the income level of students. Using the percentage of students who are eligible for free lunches at a school to determine income level, we see that the higher percentage of the schools with more affluent students have wired classrooms than those with high concentrations of low-income students. (6) Access to computers and the internet will be important in reducing disparities between groups. It will require higher equality across diverse groups whose members develop knowledge and skills in computer and information technologies. The field today is overrepresented by white males. If computers and the internet are to be used to promote equality, they have to become accessible to schools cannot currently afford the equipment which needs to be updated regularly every three years or so. However, access alone is not enough; Students will have to be interacting with the technology in authentic settings. As technology has become a tool for learning in almost all courses taken by students, it will be seen as a means to an end rather than an end in itself. If it is used in culturally relevant ways, all students can benefit from its power.
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2.a) Carbon tetrachloride is an organic compound with the chemical formula CCl4. It is a colorless liquid with a “sweet” smell. i. ...

quid with a “sweet” smell. i. Using the ground state electron configuration and excited state electron configuration explain the hybridization of the central Carbon (C) atom. (7 Marks) ii. Identify the orbitals that overlap to form the C-Cl bond. Draw a diagram to show the orbital overlap. (3 Marks) iii. What is the bond angle of CCl4? (1 Mark) b) Consider a Fluorine atom (F) and a Fluorine anion (F-). Which of these two species would you expect to have a larger radius? Explain your answer. (5 Marks) c) Explain why the first ionization energy of Aluminum (Al) is less than that of Magnesium (Mg). (4 Marks) d) Assume the atom Oxygen(O) can form both cationic(O+) and anionic(O-) species. Place the following species in order of increasing first ionization energy, starting with the lowest. O+, O, O- (5 Marks) 4. a) Sea water contains roughly 28.0 g of NaCl per liter. (NaCl molar mass = 58.44 gmol-1). i. Calculate the number of moles of NaCl in a liter of sea water. (2 Marks) ii. Calculate the molarity of NaCl in sea water. (4 Marks) iii. Calculate the mass by volume percent (W/V) of NaCl in sea water. (4 Marks) Lowest first ionization energy ………………… ….. Intermediate ionization energy ………………… ….. Highest first ionization energy …………………
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4.Order to make 1500 gallons of 3 percent beer (i.e., with 3% alcoholic content). The following is what you have ...

t you have in stocks besides unlimited supply of water (0% alcoholic content, 0 in cost): Beer ;Alcohol content; Cost per gallon; In stock (gallons) Low; 0.25%; 0.55; 500 Light; 2.50%; 0.65; 500 Heavy; 4.50%; 0.80; 500 Dark; 6.00%; 0.75; 500 What is the mix of existing beer (and water) to make 1500 gallons of 3 percent beer with the minimum cost? 1. Show the mathematical formulation of the optimization problem (decision variables, objective, and constraints) 2. What is the optimal mix of the existing beer (and water) to meet the order requirement? 3. What is the minimum cost incurred? 4. If the optimal mix maintains its pattern, without re-solving the problem, construct the new optimal mix of existing beer (and water) to make 1600 gallons of the 3 percent beer
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5.Five percent of canned goods get bumps or dents in the cans during manufacturing. Let X = the number of ...

of cans that are inspected before one with a bump or dent is found. What is the probability that more than 3 cans are inspected before one with a bump or dent is found?
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6.You’ve been working on a project involving the noise level of jets near a major metropolitan airport. Extensive data ...

rt. Extensive data collection has shown that the noise level (measured from a specific point on the ground) is a variable following a normal distribution with a mean of 95 decibels, and a standard deviation of 10 decibels. The noise levels from jet to jet can be considered to be independent. What percent of jets have noise levels between 80 and 100 decibels ?
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7.. When 4.00-L of 0.0290 M aluminum sulfate and 3.25-L of 0.0700 M Pb(NO3)2 solutions are mixed, solid lead (II) ...

d lead (II) sulfate precipitates (a) Write a balanced chemical equation for the reaction (b) Write the net ionic equation for the reaction (c) What type of reaction is occurring? (d) What is the limiting reagent? The excess reagent? (e) How many grams of lead (II) sulfate are formed? (f) In the lab, a chemistry student mixed the two solutions together and formed 9.40 g of lead (II) sulfate. What percent yield did the student obtain?
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8.1) Employees in 2012 paid 4.2% of their gross wages towards social security (FICA tax), while employers paid another 6.2%. ...

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

mathematicsalgebra Physics