Answer
$\frac{1}{81}$
Work Step by Step
$(-\frac{1}{9})^{2}=-\frac{1}{9}\times-\frac{1}{9}=\frac{-1\times-1}{9\times9}=\frac{1}{81}$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 5 - Section 5.1 - Exponents - Exercise Set - Page 343: 10
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