Answer
$\approx 9.75$million dollar
Work Step by Step
$f(8) - f(4) = \int^{8}_{4} f'(t) dt = \int ^{8} _{4} \sqrt{t} dt = \frac{2}{3} (16\sqrt{2} - 8) \approx 9.75$million dollar
Calculus 8th Edition
by Stewart, James
Published by
Cengage
ISBN 10:
1285740629
ISBN 13:
978-1-28574-062-1
Chapter 8 - Further Applications of Integration - 8.4 Applications to Economics and Biology - 8.4 Exercises - Page 613: 13
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