Answer
$8$
Work Step by Step
$\frac{20^{3/2}}{5^{3/2}}=(\frac{20}{5})^{3/2}=(4)^{3/2}=8$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter R - Review of Basic Concepts - R.6 Rational Exponents - R.6 Exercises - Page 65: 122
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