Answer
$\dfrac{1}{64}$
Work Step by Step
Use the rule $a^{-m} = \dfrac{1}{a^m}, a\ne0$ to obtain:
$=\dfrac{1}{8^2}
\\=\dfrac{1}{8(8)}
\\=\dfrac{1}{64}$
Thinking Mathematically (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0321867327
ISBN 13:
978-0-32186-732-2
Chapter 5 - Number Theory and the Real Number System - Chapter 5 Test - Page 337: 21
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