Calculus (3rd Edition)

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 - Preliminary Questions - Page 296: 5



Work Step by Step

The average is $$\frac{1}{4-1}\int_1^4f(x)dx=5\Longrightarrow \int_1^4f(x)dx=15. $$
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