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Mathematical Applications for the Management, Life, and Social SciencesRadioactive decay A certain radioactive substance has a half-life of 50 hours. Find how long it will take for 90 % of the radioactivity to be dissipated if the amount of material x satisfies d x d t = k x ( t in hours, k constant )BuyFind*launch*

11th Edition

Ronald J. Harshbarger + 1 other

Publisher: Cengage Learning

ISBN: 9781305108042

Chapter 12.5, Problem 48E

Textbook Problem

** Radioactive decay** A certain radioactive substance has a half-life of 50 hours. Find how long it will take for

Mathematical Applications for the Management, Life, and Social Sciences

Ch. 12.1 - 1. True or false:
(a)
(b)
Ch. 12.1 - 2. Evaluate
Ch. 12.1 - 1. If what is
Ch. 12.1 - 2. If what is
Ch. 12.1 - 3. If what is
Ch. 12.1 - 4. If what is
Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...

Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...Ch. 12.1 - Evaluate the integrals in Problems 5-28. Check...Ch. 12.1 - In Problems 29-32, use algebra to rewrite the...Ch. 12.1 - In Problems 29-32, use algebra to rewrite the...Ch. 12.1 - In Problems 29-32, use algebra to rewrite the...Ch. 12.1 - In Problems 29-32, use algebra to rewrite the...Ch. 12.1 - In Problems 33 and 34, find the antiderivatives...Ch. 12.1 - In Problems 33 and 34, find the antiderivatives...Ch. 12.1 - 35. If , find .
Ch. 12.1 - 36. If , find .
Ch. 12.1 - In each of Problems 37-40, a family of functions...Ch. 12.1 - In each of Problems 37-40, a family of functions...Ch. 12.1 - In each of Problems 37-40, a family of functions...Ch. 12.1 - In each of Problems 37-40, a family of functions...Ch. 12.1 - 41. Revenue If the marginal revenue (in dollars...Ch. 12.1 - 42. Revenue If the marginal revenue (in dollars...Ch. 12.1 - 43. Revenue If the marginal revenue (in dollars...Ch. 12.1 - 44. Revenue If the marginal revenue (in dollars...Ch. 12.1 - 45. Stimulus-response Suppose that when a sense...Ch. 12.1 - 46. Projectiles Suppose that a particle has been...Ch. 12.1 - 47. Pollution A factory is damping pollutants into...Ch. 12.1 - 48. Population growth The rate of growth of the...Ch. 12.1 - 49. Average cost The DeWitt Company has found that...Ch. 12.1 - 50. Oil leakage An oil tanker hits a reef and...Ch. 12.1 - Health expenditures per capita National health...Ch. 12.1 - 52. Total taxable payroll By using Social Security...Ch. 12.1 - 53. Wind chill When the air temperature is , the...Ch. 12.1 - 54. Severe weather ice makers Hail is produced in...Ch. 12.1 - 55. U.S. population With U.S. Census Bureau data...Ch. 12.1 - 56. Consumer prices The consumer price index (CPI)...Ch. 12.2 - 1. Which of the following can be evaluated with...Ch. 12.2 - 2. Which of the following is equal to ?
(a)
(b)...Ch. 12.2 - 3. True or false: Constants can be factored...Ch. 12.2 - 4. Evaluate the following.
(a)
(b)
(c)
Ch. 12.2 - In Problems 1-4, find the differential of each...Ch. 12.2 - In Problems 1-4, find the differential of each...Ch. 12.2 - In each of Problems 5 and 6, one of parts (a) and...Ch. 12.2 - In each of Problems 5 and 6, one of parts (a) and...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - Evaluate the integrals in Problems 7-36. Check...Ch. 12.2 - 37. If find
Ch. 12.2 - 38. If find
Ch. 12.2 - In Problems 39 and 40, (a) evaluate each integral...Ch. 12.2 - In Problems 39 and 40, (a) evaluate each integral...Ch. 12.2 - Each of Problems 41 and 42 has the form dx.
(a)...Ch. 12.2 - Each of Problems 41 and 42 has the form dx.
(a)...Ch. 12.2 - In each of Problems 43 and 44, a family of...Ch. 12.2 - In each of Problems 43 and 44, a family of...Ch. 12.2 - In parts (a)-(c) of Problems 45 and 46, three...Ch. 12.2 - In parts (a)-(c) of Problems 45 and 46, three...Ch. 12.2 - 47. Revenue Suppose that the marginal revenue for...Ch. 12.2 - 48. Revenue The marginal revenue for a new...Ch. 12.2 - 49. Physical productivity The total physical...Ch. 12.2 - 50. Production The rate of production of a new...Ch. 12.2 - 51. Data entry speed The rate of change in data...Ch. 12.2 - 52. Productivity Because a new employee must learn...Ch. 12.2 - 53. Film attendance An excellent film with a very...Ch. 12.2 - 54. Product quality and advertising An inferior...Ch. 12.2 - 55. Demographics Because of job outsourcing, a...Ch. 12.2 - 56. Franchise growth A new fast-food firm predicts...Ch. 12.3 - 1. True or false:
(a) (b)
(c) (d)
Ch. 12.3 - 2. True or false:
(a) (b)
(c) (d)
(e) To...Ch. 12.3 - 3. (a) Divide into 4x.
(b) Evaluate .
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
2.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
3.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
4.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
9.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
10.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
12.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
13.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
14.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
15.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
16.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
17.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
18.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
19.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
20.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
21.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
22.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
23.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
24.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
25.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
26
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
27.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
28.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
29.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
30.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
31.
Ch. 12.3 - Evaluate the integrals in Problems 1-32.
32.
Ch. 12.3 - In Problems 33 and 34, graphs of two functions...Ch. 12.3 -
In Problems 33 and 34, graphs of two functions...Ch. 12.3 - In Problems 35 and 36, a function and its graph...Ch. 12.3 - In Problems 35 and 36, a function and its graph...Ch. 12.3 - In Problems 37-40, a family of functions is given...Ch. 12.3 - In Problems 37-40, a family of functions is given...Ch. 12.3 - In Problems 37-40, a family of functions is given...Ch. 12.3 - In Problems 37-40, a family of functions is given...Ch. 12.3 - In parts (a)-(d) of Problems 41 and 42, integrate...Ch. 12.3 - In parts (a)-(d) of Problems 41 and 42, integrate...Ch. 12.3 - 43. Revenue Suppose that the marginal revenue from...Ch. 12.3 - 44. Concentration of a drug Suppose that the rate...Ch. 12.3 - 45. Radioactive decay The rate of disintegration...Ch. 12.3 - 46. Radioactive decay Radioactive substances decay...Ch. 12.3 - 47. Memorization The rate of vocabulary...Ch. 12.3 - 48. Population growth The rate of growth of world...Ch. 12.3 - 49. Compound interest If $P is invested for n...Ch. 12.3 - 50. Temperature changes When an object is moved...Ch. 12.3 - 56. Average annual wage The following table shows...Ch. 12.4 - 1. True or false:
(a) If , then the constant of...Ch. 12.4 - 2. Find and fixed costs are $8000.
Ch. 12.4 - 3. If the marginal propensity to save is
find the...Ch. 12.4 - 4. Find the national consumption function if the...Ch. 12.4 - In Problems 1-12, cost, revenue, and profit are in...Ch. 12.4 - In Problems 1-12, cost, revenue, and profit are in...Ch. 12.4 - In Problems 1-12, cost, revenue, and profit are in...Ch. 12.4 - TOTAL COST AND PROFIT In Problems 1-12, cost,...Ch. 12.4 - TOTAL COST AND PROFIT In Problems 1-12, cost,...Ch. 12.4 - TOTAL COST AND PROFIT In Problems 1-12, cost,...Ch. 12.4 - In Problems 1-12, cost, revenue, and profit are in...Ch. 12.4 - In Problems 1-12, cost, revenue, and profit are in...Ch. 12.4 - In Problems 1-12, cost, revenue, and profit are in...Ch. 12.4 - In Problems 1-12, cost, revenue, and profit are in...Ch. 12.4 - In Problems 1-12, cost, revenue, and profit are in...Ch. 12.4 - In Problems 1-12, cost, revenue, and profit are in...Ch. 12.4 - 14. Suppose that the marginal cost for a certain...Ch. 12.4 - 14. Suppose that the marginal cost for a certain...Ch. 12.4 - If consumption is $7 trillion when disposable...Ch. 12.4 - If national consumption is $9 trillion when income...Ch. 12.4 - If consumption is $8 trillion when income is $0...Ch. 12.4 - If consumption is $5 trillion when disposable...Ch. 12.4 - If consumption is $6 trillion when disposable...Ch. 12.4 - If consumption is $5.8 trillion when disposable...Ch. 12.4 - Suppose that the marginal propensity to consume is...Ch. 12.4 - Suppose that the marginal propensity to save is...Ch. 12.4 - Suppose that the marginal propensity to save is...Ch. 12.4 - If consumption is $3 trillion when disposable...Ch. 12.5 - 1. Given ,
(a) find the general solution to the...Ch. 12.5 - 2. True or false:
(a) The general solution to can...Ch. 12.5 - 3. Suppose that .
(a) Separate this equation. (b)...Ch. 12.5 - In Problems 1-4, show that the given function is a...Ch. 12.5 - In Problems 1-4, show that the given function is a...Ch. 12.5 - In Problems 1-4, show that the given function is a...Ch. 12.5 - In Problems 1-4, show that the given function is a...Ch. 12.5 - In Problems 5-10, use integration to find the...Ch. 12.5 - In Problems 5-10, use integration to find the...Ch. 12.5 - In Problems 5-10, use integration to find the...Ch. 12.5 - In Problems 5-10, use integration to find the...Ch. 12.5 - In Problems 5-10, use integration to find the...Ch. 12.5 - In Problems 5-10, use integration to find the...Ch. 12.5 - In Problems 11-14, find the particular solution.
Ch. 12.5 - In Problems 11-14, find the particular solution.
Ch. 12.5 - In Problems 11-14, find the particular solution.
Ch. 12.5 - In Problems 11-14, find the particular solution.
Ch. 12.5 - In Problems 15-28, find the general solution to...Ch. 12.5 - In Problems 15-28, find the general solution to...Ch. 12.5 - In Problems 15-28, find the general solution to...Ch. 12.5 - In Problems 15-28, find the general solution to...Ch. 12.5 - In Problems 15-28, find the general solution to...Ch. 12.5 - In Problems 15-28, find the general solution to...Ch. 12.5 - In Problems 15-28, find the general solution to...Ch. 12.5 - In Problems 15-28, find the general solution to...Ch. 12.5 - In Problems 15-28, find the general solution to...Ch. 12.5 - In Problems 15-28, find the general solution to...Ch. 12.5 - In Problems 15-28, find the general solution to...Ch. 12.5 - In Problems 15-28, find the general solution to...Ch. 12.5 - In Problems 15-28, find the general solution to...Ch. 12.5 - In Problems 15-28, find the general solution to...Ch. 12.5 - In Problems 29-36, find the particular solution to...Ch. 12.5 - In Problems 29-36, find the particular solution to...Ch. 12.5 - In Problems 29-36, find the particular solution to...Ch. 12.5 - In Problems 29-36, find the particular solution to...Ch. 12.5 - In Problems 29-36, find the particular solution to...Ch. 12.5 - In Problems 29-36, find the particular solution to...Ch. 12.5 - In Problems 29-36, find the particular solution to...Ch. 12.5 - In Problems 29-36, find the particular solution to...Ch. 12.5 - 37. Allometric growth If x and y are measurements...Ch. 12.5 - 38. Bimolecular chemical reactions A bimolecular...Ch. 12.5 - Compound interest In Problems 39 and 40, use the...Ch. 12.5 - Compound interest In Problems 39 and 40, use the...Ch. 12.5 - 41. Investing When the interest on an investment...Ch. 12.5 - 42. Investing When the interest on an investment...Ch. 12.5 - 43. Bacterial growth Suppose that the growth of a...Ch. 12.5 - 44. Bacterial growth Suppose that for a certain...Ch. 12.5 - 46. Sales and pricing Suppose that a chain of auto...Ch. 12.5 - 46. Sales and pricing Suppose that a chain of auto...Ch. 12.5 - 47. Half-life A breeder reactor converts...Ch. 12.5 - 48. Radioactive decay A certain radioactive...Ch. 12.5 - 49. Drug in an organ Suppose that a liquid carries...Ch. 12.5 - 50. Drug in an organ Suppose that a liquid carries...Ch. 12.5 - 51. Drug in an organ Suppose that a liquid carries...Ch. 12.5 - 52. Drug in an organ Suppose that a liquid carries...Ch. 12.5 - 53. Tumor volume Let V denote the volume of a...Ch. 12.5 - 54. Gompertz curves The differential...Ch. 12.5 - 55. Cell growth If V is the volume of a spherical...Ch. 12.5 - 56. Atmospheric pressure The rate of change of...Ch. 12.5 - 57. Newton's law of cooling Newton’s law of...Ch. 12.5 - 58. Newton’s law of cooling Newton’s law of...Ch. 12 - Evaluate the integrals in Problems 1-26.
Ch. 12 - Evaluate the integrals in Problems 1-26.
Ch. 12 - Evaluate the integrals in Problems 1-26.
Ch. 12 - Evaluate the integrals in Problems 1-26.
Ch. 12 - Evaluate the integrals in Problems 1-26.
Ch. 12 - Evaluate the integrals in Problems 1-26.
Ch. 12 - Evaluate the integrals in Problems 1-26.
Ch. 12 - Evaluate the integrals in Problems 1-26.
Ch. 12 - Evaluate the integrals in Problems 1-26.
9.
Ch. 12 - Evaluate the integrals in Problems 1-26.
10.
Ch. 12 - Evaluate the integrals in Problems 1-26.
11.
Ch. 12 - Evaluate the integrals in Problems 1-26.
12.
Ch. 12 - Evaluate the integrals in Problems 1-26.
13.
Ch. 12 - Evaluate the integrals in Problems 1-26.
14.
Ch. 12 - Evaluate the integrals in Problems 1-26.
15.
Ch. 12 - Evaluate the integrals in Problems 1-26.
Ch. 12 - Evaluate the integrals in Problems 1-26.
Ch. 12 - Evaluate the integrals in Problems 1-26.
Ch. 12 - Evaluate the integrals in Problems 1-26.
Ch. 12 - Evaluate the integrals in Problems 1-26.
Ch. 12 - Evaluate the integrals in Problems 1-26.
Ch. 12 - Evaluate the integrals in Problems 1-26.
Ch. 12 - Evaluate the integrals in Problems 1-26.
Ch. 12 - Evaluate the integrals in Problems 1-26.
Ch. 12 - Evaluate the integrals in Problems 1-26.
25. (a) ...Ch. 12 - Evaluate the integrals in Problems 1-26.
26. (a) ...Ch. 12 - In Problems 27-32, find the general solution to...Ch. 12 - In Problems 27-32, find the general solution to...Ch. 12 - In Problems 27-32, find the general solution to...Ch. 12 - In Problems 27-32, find the general solution to...Ch. 12 - In Problems 27-32, find the general solution to...Ch. 12 - In Problems 27-32, find the general solution to...Ch. 12 - In Problems 33 and 34, find the particular...Ch. 12 - In Problems 33 and 34, find the particular...Ch. 12 - 35. Revenue If the marginal revenue for a month...Ch. 12 - 36. Productivity Suppose that the rate of change...Ch. 12 - 37. Oxygen levels in water The rate of change of...Ch. 12 - 38. Bacterial growth A population of bacteria...Ch. 12 - 39. Market share The rate of change of the market...Ch. 12 - 40. Revenue If the marginal revenue for a product...Ch. 12 - 41. Cost The marginal cost for a product is
...Ch. 12 - 42. Profit Suppose a product has a daily marginal...Ch. 12 - National consumption If consumption is $8.5...Ch. 12 - 44. National consumption Suppose that the marginal...Ch. 12 - 45. Allometric growth For many species of fish,...Ch. 12 - 46. Investment When the interest on an investment...Ch. 12 - 47. Fossil dating Radioactive beryllium is...Ch. 12 - 48. Drug in an organ Suppose that a liquid carries...Ch. 12 - 49. Chemical mixture A 300-gal tank initially...Ch. 12 - Evaluate the integrals in Problems 1-11
1.
Ch. 12 - Evaluate the integrals in Problems 1-11.
Ch. 12 - Evaluate the integrals in Problems 1-11.
Ch. 12 - Evaluate the integrals in Problems 1-11.
4.
Ch. 12 - Evaluate the integrals in Problems 1-11.
Ch. 12 - Evaluate the integrals in Problems 1-11.
Ch. 12 - Evaluate the integrals in Problems 1-11.
Ch. 12 - Evaluate the integrals in Problems 1-11.
8.
Ch. 12 - Evaluate the integrals in Problems 1-11.
9.
Ch. 12 - Evaluate the integrals in Problems 1-26.
10.
Ch. 12 - Evaluate the integrals in Problems 1-11.
11.
Ch. 12 - 12. Evaluate Use long division.
Ch. 12 - 13. .
Ch. 12 - 14. Find the general solution to
Ch. 12 - In Problems 15 and 16, find the particular...Ch. 12 - In Problems 15 and 16, find the particular...Ch. 12 - 17. Find the general solution of the separable...Ch. 12 - Suppose the rate of growth of the population of a...Ch. 12 - 19. Suppose that the marginal cost for x units of...Ch. 12 - Suppose the marginal propensity to save is given...Ch. 12 - A certain radioactive material has a half-life of...Ch. 12 - 22. Suppose that a liquid carries a drug with...

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