Your question is missing formula for m which is given as;
formula for 
Answer:
a.the inverse of the function is
.
b.p=12 (thousands)
Step-by-step explanation:
Given Data:
Formula for
, 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= \frac{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}](https://tex.z-dn.net/?f=m%3D%20%5Cfrac%7Bp%5E3%7D%7B90%7D%5C%5C%5C%5Cmultiply%5C%20both%5C%20sides%5C%20by%5C%2090%5C%20we%5C%20get%5C%5Cp%5E3%3Dm%2A90%5C%5C%5C%5Cp%5E3%3D90m%5C%5C%5C%5Ctaking%5C%20cube%5C%20root%5C%20we%5C%20get%5C%5C%5C%5Cp%3D%5Csqrt%5B3%5D%7B90m%7D)
the inverse of the function is
........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](https://tex.z-dn.net/?f=p%3D%5Csqrt%5B3%5D%7B90%2A20%7D%5C%5C%5C%5Cp%3D%5Csqrt%5B3%5D%7B1800%7D%5C%5C%5C%5Cp%3D12.16)
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