Answer
$C(t)= 15,000+800,000t-40,000t^2$
Work Step by Step
Given $N(t)=100t-5t^2$ and $C(N)=15000+8000N$, we have $C(t)=15000+8000(100t-5t^2)=15000+800000t-40000t^2$
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 5 - Exponential and Logarithmic Functions - 5.1 Composite Functions - 5.1 Assess Your Understanding - Page 255: 61
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