Answer
See below
Work Step by Step
$f(x). g(x)=\frac{2}{5}x^{-0.25}(5x^{3.25})=2x^3$
Substituting $x=3$, we have: $f(3).g(3)=2(3)^3=54$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 6 Rational Exponents and Radical Functions - Standardized Test Practice - Gridded Response - Page 473: 13
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