Answered: Husbands' and Wives' Weekly Housework…

Calculus: Early Transcendentals

8th Edition

ISBN:9781285741550

Author:James Stewart

Publisher:James Stewart

Chapter1: Functions And Models

Section: Chapter Questions

Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...

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The bar graph shows the average number of hours per week that U.S. wives and husbands engaged in housework in six selected years.The function
f(x) = -3.52 ln x + 34.5 models the wives’ weekly housework hours, f(x), x years after 1964.
a. Use the function to find the number of weekly housework hours for wives in 2010. Round to the nearest hour. Does this function value overestimate or underestimate the number of hours displayed by the graph? By how much?
b. Use the function to project wives’ weekly housework hours in 2025. Round to the nearest hour.

Husbands' and Wives' Weekly
Housework Hours
40
34
Wives
35
Husbands
30
27
24
25
23
...
21
20
20
15
11
10
10
9.
10
6
4
1965
1975
1985
1995
2005
2010
Year
Housework Hours
Week

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