Mathematical Applications for the Management, Life, and Social Sciences

11th Edition

ISBN: 9781305108042

Author: Ronald J. Harshbarger, James J. Reynolds

Publisher: Cengage Learning

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Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differentia…

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Textbook Question

Chapter 5.3, Problem 59E

Spread of disease On a college campus of 10,000 students, a single student returned to campus infected by a disease. The spread of the disease through the student body is given by

y = 10 , 000 1 + 9999 e − 0.99 t where y is the total number infected at time t (in days).

(a) How many are infected after 4 days?

(b) The school will shut down if 50% of the students are ill. During what day will it close?

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Chapter 5 Solutions

Mathematical Applications for the Management, Life, and Social Sciences

Ch. 5.1 - 1. Can any value of x give a negative value for y...Ch. 5.1 - 2. If , what asymptote does the graph of ...Ch. 5.1 - Prob. 3CP Ch. 5.1 - Prob. 4CP Ch. 5.1 - Prob. 5CP Ch. 5.1 - Prob. 6CP Ch. 5.1 - Prob. 1E Ch. 5.1 - Prob. 2E Ch. 5.1 - Prob. 3E Ch. 5.1 - Prob. 4E

Ch. 5.1 - Prob. 5E Ch. 5.1 - Prob. 6E Ch. 5.1 - Prob. 7E Ch. 5.1 - Prob. 8E Ch. 5.1 - Prob. 9E Ch. 5.1 - Prob. 10E Ch. 5.1 - Prob. 11E Ch. 5.1 - Prob. 12E Ch. 5.1 - Prob. 13E Ch. 5.1 - Prob. 14E Ch. 5.1 - Prob. 15E Ch. 5.1 - Prob. 16E Ch. 5.1 - Prob. 17E Ch. 5.1 - Prob. 18E Ch. 5.1 - 23. (a) Graph . (b) Graph . (c) Algebraically show...Ch. 5.1 - Prob. 20E Ch. 5.1 - 25. Given that , write an equivalent equation in...Ch. 5.1 - 26. Given that , write an equivalent equation in...Ch. 5.1 - Prob. 23E Ch. 5.1 - Prob. 24E Ch. 5.1 - Prob. 25E Ch. 5.1 - Prob. 26E Ch. 5.1 - Prob. 27E Ch. 5.1 - Prob. 28E Ch. 5.1 - 33. Compound interest If $1000 is invested for x...Ch. 5.1 - 35. Compound interest We will show in the next...Ch. 5.1 - 36. Compound interest If $1000 is invested for x...Ch. 5.1 - 37. Drug in the bloodstream The percent...Ch. 5.1 - Bacterial growth A single bacterium splits into...Ch. 5.1 - 39. Product reliability A statistical study shows...Ch. 5.1 - Prob. 35E Ch. 5.1 - Prob. 36E Ch. 5.1 - Prob. 38E Ch. 5.1 - 46. Advertising and sales Suppose that sales are...Ch. 5.1 - 47. Modeling Carbon dioxide emissions The...Ch. 5.1 - 53. Modeling Alzheimer’s disease As the baby...Ch. 5.2 - 1. What asymptote does the graph of approach when...Ch. 5.2 - 2. For , does the equation represent the same...Ch. 5.2 - Prob. 3CP Ch. 5.2 - Prob. 4CP Ch. 5.2 - 5. Simplify: (a) (b) (c) (d) log 1 Ch. 5.2 - Prob. 6CP Ch. 5.2 - In Problems 1-4, use the definition of a...Ch. 5.2 - Prob. 2E Ch. 5.2 - Prob. 3E Ch. 5.2 - Prob. 4E Ch. 5.2 - Prob. 5E Ch. 5.2 - Prob. 6E Ch. 5.2 - Prob. 7E Ch. 5.2 - Prob. 8E Ch. 5.2 - Prob. 9E Ch. 5.2 - Prob. 10E Ch. 5.2 - Prob. 11E Ch. 5.2 - Prob. 12E Ch. 5.2 - In Problems 5-14, solve for x by writing the...Ch. 5.2 - In Problems 5-14, solve for x by writing the...Ch. 5.2 - Prob. 15E Ch. 5.2 - Prob. 16E Ch. 5.2 - Prob. 17E Ch. 5.2 - Prob. 18E Ch. 5.2 - Prob. 19E Ch. 5.2 - In Problems 19 and 20, write the equation in...Ch. 5.2 - Prob. 21E Ch. 5.2 - Prob. 22E Ch. 5.2 - Prob. 23E Ch. 5.2 - Prob. 24E Ch. 5.2 - Prob. 25E Ch. 5.2 - Prob. 26E Ch. 5.2 - Prob. 27E Ch. 5.2 - Prob. 28E Ch. 5.2 - Prob. 29E Ch. 5.2 - Prob. 30E Ch. 5.2 - Prob. 31E Ch. 5.2 - In Problems 27 and 28, use properties of...Ch. 5.2 - Prob. 33E Ch. 5.2 - Prob. 34E Ch. 5.2 - In Problems 35 and 36, evaluate each logarithm...Ch. 5.2 - In Problems 35 and 36, evaluate each logarithm...Ch. 5.2 - Write each expression in Problems 37-40 as the sum...Ch. 5.2 - Prob. 38E Ch. 5.2 - Prob. 39E Ch. 5.2 - Write each expression in Problems 37-40 as the sum...Ch. 5.2 - Prob. 41E Ch. 5.2 - Prob. 42E Ch. 5.2 - Prob. 43E Ch. 5.2 - Prob. 44E Ch. 5.2 - Prob. 45E Ch. 5.2 - Prob. 46E Ch. 5.2 - Prob. 47E Ch. 5.2 - In Problems 45-48, use a calculator to determine...Ch. 5.2 - Prob. 49E Ch. 5.2 - Prob. 50E Ch. 5.2 - Prob. 51E Ch. 5.2 - Prob. 52E Ch. 5.2 - Prob. 53E Ch. 5.2 - Prob. 54E Ch. 5.2 - Prob. 55E Ch. 5.2 - Prob. 56E Ch. 5.2 - Prob. 57E Ch. 5.2 - Prob. 58E Ch. 5.2 - Richter scale Use the formula in Problems 59-62....Ch. 5.2 - Richter scale Use the formula in Problems 59-62....Ch. 5.2 - Prob. 61E Ch. 5.2 - Richter scale Use the formula in Problems 59-62....Ch. 5.2 - Prob. 63E Ch. 5.2 - Prob. 65E Ch. 5.2 - Prob. 66E Ch. 5.2 - Prob. 67E Ch. 5.2 - Prob. 68E Ch. 5.2 - Prob. 69E Ch. 5.2 - Prob. 70E Ch. 5.2 - Doubling time In Problems 71 and 72, use the...Ch. 5.2 - Prob. 72E Ch. 5.2 - 73. Women in the workforce For selected years from...Ch. 5.2 - 75. Modeling Diabetes As the following table...Ch. 5.2 - Prob. 76E Ch. 5.2 - 78. Modeling Demographics The table below gives...Ch. 5.3 - 1. Suppose the sales of a product, in dollars, are...Ch. 5.3 - 2. Suppose the monthly demand for a product is...Ch. 5.3 - 3. Suppose the number of employees at a new...Ch. 5.3 - Prob. 1E Ch. 5.3 - Prob. 2E Ch. 5.3 - In Problems 1-22, solve each equation. Give...Ch. 5.3 - In Problems 1-22, solve each equation. Give...Ch. 5.3 - Prob. 5E Ch. 5.3 - Prob. 6E Ch. 5.3 - Prob. 7E Ch. 5.3 - Prob. 8E Ch. 5.3 - In Problems 1-22, solve each equation. Give...Ch. 5.3 - Prob. 10E Ch. 5.3 - Prob. 11E Ch. 5.3 - Prob. 12E Ch. 5.3 - Prob. 13E Ch. 5.3 - Prob. 14E Ch. 5.3 - Prob. 15E Ch. 5.3 - Prob. 16E Ch. 5.3 - Prob. 17E Ch. 5.3 - Prob. 18E Ch. 5.3 - Prob. 19E Ch. 5.3 - Prob. 20E Ch. 5.3 - Prob. 21E Ch. 5.3 - Prob. 22E Ch. 5.3 - Prob. 23E Ch. 5.3 - Prob. 24E Ch. 5.3 - 25. Sales decay The sales decay for a product is...Ch. 5.3 - 26. Sales decay The sales of a product decline...Ch. 5.3 - 27. Inflation The purchasing power P (in dollars)...Ch. 5.3 - 28. Product reliability A statistical study shows...Ch. 5.3 - 29. Radioactive half-life An initial amount of 100...Ch. 5.3 - 30. Radioactive half-life A breeder reactor...Ch. 5.3 - 31. Population growth If the population of a...Ch. 5.3 - 32. Population growth The population of a certain...Ch. 5.3 - 35. Demand The demand function for a certain...Ch. 5.3 - 36. Demand The demand function for a product is...Ch. 5.3 - 37. Supply If the supply function for a product is...Ch. 5.3 - Prob. 38E Ch. 5.3 - 39. Total cost The total cost function for x units...Ch. 5.3 - Prob. 40E Ch. 5.3 - Prob. 41E Ch. 5.3 - Prob. 42E Ch. 5.3 - 43. Compound interest If $8500 is invested at...Ch. 5.3 - 44. Compound interest If $1000 is invested at 10%...Ch. 5.3 - 45. Compound interest If $5000 is invested at 9%...Ch. 5.3 - Prob. 46E Ch. 5.3 - Profits An investment services company experienced...Ch. 5.3 - Profits An investment services company experienced...Ch. 5.3 - Prob. 49E Ch. 5.3 - Prob. 50E Ch. 5.3 - 51. Supply Suppose the supply of x units of a...Ch. 5.3 - 52. Demand Assume that the demand function for a...Ch. 5.3 - 53. Sales growth The president of a company...Ch. 5.3 - Prob. 54E Ch. 5.3 - 55. Organizational growth Suppose that the...Ch. 5.3 - Prob. 56E Ch. 5.3 - Prob. 57E Ch. 5.3 - 58. Population growth Suppose that the number y of...Ch. 5.3 - 59. Spread of disease On a college campus of...Ch. 5.3 - 60. Spread of a rumor The number of people N(t) in...Ch. 5.3 - 61. Market share Suppose that the market share y...Ch. 5.3 - 62. Advertising An advertising agency has found...Ch. 5.3 - 63. Pollution Pollution levels in a lake have been...Ch. 5.3 - 64. Fish length Suppose that the length x (in...Ch. 5.3 - Prob. 65E Ch. 5.3 - Prob. 66E Ch. 5.3 - 67. Modeling Diabetes The following table gives...Ch. 5 - 1. Write each statement in logarithmic form. Ch. 5 - Prob. 2RE Ch. 5 - Prob. 3RE Ch. 5 - Prob. 4RE Ch. 5 - Prob. 5RE Ch. 5 - Prob. 6RE Ch. 5 - Prob. 7RE Ch. 5 - Prob. 8RE Ch. 5 - Prob. 9RE Ch. 5 - Prob. 10RE Ch. 5 - Prob. 11RE Ch. 5 - Prob. 12RE Ch. 5 - In Problems 13-20, evaluate each logarithm without...Ch. 5 - Prob. 14RE Ch. 5 - Prob. 15RE Ch. 5 - In Problems 13-20, evaluate each logarithm without...Ch. 5 - In Problems 13-20, evaluate each logarithm without...Ch. 5 - Prob. 18RE Ch. 5 - Prob. 19RE Ch. 5 - Prob. 20RE Ch. 5 - Prob. 21RE Ch. 5 - Prob. 22RE Ch. 5 - In Problems 21-24, if , find each of the following...Ch. 5 - In Problems 21-24, if , find each of the following...Ch. 5 - Prob. 25RE Ch. 5 - Prob. 26RE Ch. 5 - 27. Is it true that ln for all positive values of...Ch. 5 - Prob. 28RE Ch. 5 - Prob. 29RE Ch. 5 - Prob. 30RE Ch. 5 - 31. If Ch. 5 - Prob. 32RE Ch. 5 - Prob. 33RE Ch. 5 - Prob. 34RE Ch. 5 - Prob. 35RE Ch. 5 - Prob. 36RE Ch. 5 - In Problems 36-42, solve each equation. 37. Ch. 5 - Prob. 38RE Ch. 5 - In Problems 36-42, solve each equation. 39. Ch. 5 - In Problems 36-42, solve each equation. 40. Ch. 5 - Prob. 41RE Ch. 5 - In Problems 36-42, solve each equation. 42. Ch. 5 - Prob. 43RE Ch. 5 - Prob. 45RE Ch. 5 - Prob. 46RE Ch. 5 - Prob. 48RE Ch. 5 - Prob. 49RE Ch. 5 - 50. Sales decay The sales decay for a product is...Ch. 5 - Prob. 51RE Ch. 5 - 54. Compound interest If $1000 is invested at 12%,...Ch. 5 - 55. Compound interest If $5000 is invested at...Ch. 5 - Prob. 54RE Ch. 5 - Prob. 55RE Ch. 5 - Prob. 56RE Ch. 5 - Prob. 1T Ch. 5 - Prob. 2T Ch. 5 - Prob. 3T Ch. 5 - Prob. 4T Ch. 5 - Prob. 5T Ch. 5 - Prob. 6T Ch. 5 - Prob. 7T Ch. 5 - Prob. 8T Ch. 5 - Prob. 9T Ch. 5 - Prob. 10T Ch. 5 - Prob. 11T Ch. 5 - Prob. 12T Ch. 5 - Prob. 13T Ch. 5 - Prob. 14T Ch. 5 - Prob. 15T Ch. 5 - Prob. 16T Ch. 5 - Prob. 17T Ch. 5 - Prob. 18T Ch. 5 - Prob. 19T Ch. 5 - Prob. 20T Ch. 5 - Prob. 21T Ch. 5 - Prob. 22T Ch. 5 - Prob. 23T Ch. 5 - Prob. 24T Ch. 5 - Prob. 25T Ch. 5 - Prob. 26T Ch. 5 - 27. The total national health expenditures per...Ch. 5 - 28. A company plans to phase out one model of its...Ch. 5 - Prob. 30T

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Solution Summary: The author calculates the number of students infected after 4 days if the function y=10,0001+9999e-0.99t represents the total number.

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Chapter 5 Solutions