Answer
$4$
Work Step by Step
$0.2^{2/3}\cdot 40^{2/3}=(0.2\cdot 40)^{2/3}=(8)^{2/3}=4$
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: 119
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