Answer
$\frac{1}{10}.$
Work Step by Step
The average is given by
$$
\frac{1}{5-2} \int_{2}^{5} s^{-2} d s=-\left.\frac{1}{3} s^{-1}\right|_{2} ^{5}=\frac{1}{10}.
$$
Calculus (3rd Edition)
by Rogawski, Jon; Adams, Colin
Published by
W. H. Freeman
ISBN 10:
1464125260
ISBN 13:
978-1-46412-526-3
Chapter 6 - Applications of the Integral - 6.2 Setting Up Integrals: Volume, Density, Average Value - Exercises - Page 298: 43
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