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(a)
To calculate: The function for the instantaneous rate of change of the number of beneficiaries, if the function for the number of beneficiaries (in millions) t years past 1950 model as
Year | Number of Beneficiaries (millions) | Year | Number of Beneficiaries (millions) |
1950 | 2.9 | 2000 | 44.8 |
1960 | 14.3 | 2010 | 53.3 |
1970 | 25.2 | 2020 | 68.8 |
1980 | 35.1 | 2030 | 82.7 |
1990 | 39.5 |
(b)
To calculate: The instantaneous rate of change of the number of beneficiaries in 2020 and its interpretation, if the function for the number of beneficiaries (in millions) t years past 1950 model as
The data that gives the number of Social Security beneficiaries (actual and projected) for selected years from 1950 through 2030 for which the function is modeled is tabulated below
Year | Number of Beneficiaries (millions) | Year | Number of Beneficiaries (millions) |
1950 | 2.9 | 2000 | 44.8 |
1960 | 14.3 | 2010 | 53.3 |
1970 | 25.2 | 2020 | 68.8 |
1980 | 35.1 | 2030 | 82.7 |
1990 | 39.5 |
(c)
The time range among (from 2010 to 2020, from 2020 to 2030 orfrom 2010 to 2030) for which the average rate of change is the best approximates of the instantaneous rate of change in 2020, if the function for the number of beneficiaries (in millions) t years past 1950 model as
The data that gives the number of Social Security beneficiaries (actual and projected) for selected years from 1950 through 2030 for which the function is modeled is tabulated below
Year | Number of Beneficiaries (millions) | Year | Number of Beneficiaries (millions) |
1950 | 2.9 | 2000 | 44.8 |
1960 | 14.3 | 2010 | 53.3 |
1970 | 25.2 | 2020 | 68.8 |
1980 | 35.1 | 2030 | 82.7 |
1990 | 39.5 |
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Chapter 9 Solutions
MATHMATICAL APPLICATIONS FOR THE MANAGEM
- A student completed the problem below. Identify whether the student was correct or incorrect. Explain your reasoning. (identification 1 point; explanation 1 point) 4x 3x (x+7)(x+5)(x+7)(x-3) 4x (x-3) (x+7)(x+5) (x03) 3x (x+5) (x+7) (x-3)(x+5) 4x²-12x-3x²-15x (x+7) (x+5) (x-3) 2 × - 27x (x+7)(x+5) (x-3)arrow_forwardFor this question, refer to the a1q4.py Python code that follows the assignment, as well as the dataprovided after the assignment.(a) Modify the code presented to plot the data from the two separate sets of information(from each region).(b) For each population of squirbos, let ` be the length of their front claws and s the mass ofthe skull. Determine for what value of m the s is isometric to `m. Justify it with your log − log plotsfrom (a) and suitable sketched lines.(c) What do you notice about the correlus striatus on your plot?(d) What historically might explain their situation?arrow_forwardPlease see image for question.arrow_forward
- Question 2 Find the shortest distance between the lines [x, y, z] = [1,0,4] + t[1, 3, −1] and [x, y, z] = [0,2,0] + s[2, 1, 1]. [Do not use derivatives.]arrow_forwardPlease see image for the questions.arrow_forward2 Add the rational expressions below. Can you add them in this original form? Explain why or why not. 3x-7 5x + x² - 7x+12 4x-12 Show all steps. State your least common denominator and explain in words your process on how you determined your least common denominator. Be sure to state your claim, provide your evidence, and provide your reasoning before submitting.arrow_forward
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