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11. The total number of months m that it takes to produce p tennis rackets

(in thousands) is given by the formula m =

a. Find the inverse of the function.

b. How many tennis rackets will be produced in 20 months? Round your answer to the nearest

whole tennis racket.

1 Answer

1 vote

Your question is missing formula for m which is given as;

formula for
m= (p^3)/(90)

Answer:

a.the inverse of the function is
p=\sqrt[3]{90m}.

b.p=12 (thousands)

Explanation:

Given Data:

Formula for
m= (p^3)/(90) , where m is the total number of months it takes to produce p tennis rackets (in thousands).

Required:

a. Find the inverse of the function.

b. How many tennis rackets will be produced in 20 months? Round your answer to the nearest whole tennis racket.

Solution:

a.Inverse of the function:


m= (p^3)/(90)\\\\multiply\ both\ sides\ by\ 90\ we\ get\\p^3=m*90\\\\p^3=90m\\\\taking\ cube\ root\ we\ get\\\\p=\sqrt[3]{90m}

the inverse of the function is
p=\sqrt[3]{90m}........Eq1

b. How many tennis rackets will be produced in 20 months?

put m=20 in Eq1, we get


p=\sqrt[3]{90*20}\\\\p=\sqrt[3]{1800}\\\\p=12.16

If we round the answer to nearest whole tennis racket we get p=12 (thousands)

thus, in 20 moths 12 (thousands) tennis rackets will be produced