Answer
$2x$
Work Step by Step
the average value is
= $\frac{1}{x-0}\int_0^{x}R(t)dt$
$\int_0^{x}R(t)dt$ = $x^{2}$
so
$R(x)$= $2x$
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 - Chapter Review Exercises - Page 319: 26
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