Answered: Year Percent Year Percent 1920 55.6…

Year Percent Year Percent 1920 55.6 1980 19.0 1930 54.0 1990 16.3 1940 41.8 2000 17.7 1950 45.8 2010 22.6 1960 33.1 2020 27.2 1970 21.8 2030 27.6

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter8: Sequences, Series, And Probability

Section8.CR: Chapter Review

Problem 37E: Find the positive geometric mean between 4 and 64.

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Concept explainers

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 differential equations.

Question

. Elderly Men in the Workforce The table below gives
the percent of men 65 years or older in the workforce
for selected years from 1920 and projected to 2030.

a. With x = 0 representing 1900, find the cubic
function that models the data.
b. Use the model to determine when the percent
of elderly men in the workforce reached its
minimum.

Year Percent
Year
Percent
1920
55.6
1980
19.0
1930
54.0
1990
16.3
1940
41.8
2000
17.7
1950
45.8
2010
22.6
1960
33.1
2020
27.2
1970
21.8
2030
27.6

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