Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 10 - Cumulative Review: 31

Answer

$\frac{1}{9}$

Work Step by Step

$(-27)^{-\frac{2}{3}}=\frac{1}{(-27)^{\frac{2}{3}}}=\frac{1}{(-3)^{3\times\frac{2}{3}}}=\frac{1}{(-3)^{2}}=\frac{1}{9}$
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