Calculus 8th Edition

Published by Cengage
ISBN 10: 1285740629
ISBN 13: 978-1-28574-062-1

Chapter 2 - Derivatives - 2.8 Related Rates - 2.8 Exercises - Page 185: 3



Work Step by Step

$A=x^2$, $\frac{dx}{dt}=6$. Taking the derivative of the first, $\frac{dA}{dt}=2x\frac{dx}{dt}$. we can plug in $\frac{dx}{dt}=6$ and $x=4$ to get $48$
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