Answer
$\frac{1}{9}$
Work Step by Step
$(-27)^{-\frac{2}{3}}=\frac{1}{(-27)^{\frac{2}{3}}}=\frac{1}{(-3)^{3\times\frac{2}{3}}}=\frac{1}{(-3)^{2}}=\frac{1}{9}$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 10 - Cumulative Review - Page 754: 31
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