i dont understand part iv and v Let P(t) be the percentage of Americans under the age of 18 at time t. The table gives values of thisfunction in census years from 1960 to 2010.Time, tP(t)19601970198019902000201037.331.529.326.82523.9Compute the average rate of change of percentage of Americans under age 18 with respect to timeover each time interval (round your answer to the nearest hundreths place):i) [1960, 1980]-0.4 vii) [1970, 1980]-0.22 viii) (1980, 1990)] =-0.25 viv) [1980, 2000]—0.215 хEstimate the instantaneous rate of change of percentage of americans under the age 18 for the year1980. Include the proper units in your answer.v)Percent of Americans under 18 per year.

iv) Obtain the average rate of change for [1980,2000]. Average rate of…

Answered: iv) [1980, 2000] -0.215 × Estimate the…

iv) [1980, 2000] -0.215 × Estimate the instantaneous rate of change of percentage of americans under the age 18 for the year 1980. Include the proper units in your answer.

College Algebra

1st Edition

ISBN:9781938168383

Author:Jay Abramson

Publisher:Jay Abramson

Chapter6: Exponential And Logarithmic Functions

Section6.1: Exponential Functions

Problem 60SE: The formula for the amount A in an investmentaccount with a nominal interest rate r at any timet is...

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Question

i dont understand part iv and v

Let P(t) be the percentage of Americans under the age of 18 at time t. The table gives values of this
function in census years from 1960 to 2010.
Time, t
P(t)
1960
1970
1980
1990
2000
2010
37.3
31.5
29.3
26.8
25
23.9
Compute the average rate of change of percentage of Americans under age 18 with respect to time
over each time interval (round your answer to the nearest hundreths place):
i) [1960, 1980]
-0.4 v
ii) [1970, 1980]
-0.22 v
iii) (1980, 1990)] =
-0.25 v
iv) [1980, 2000]
—0.215 х
Estimate the instantaneous rate of change of percentage of americans under the age 18 for the year
1980. Include the proper units in your answer.
v)
Percent of Americans under 18 per year.

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