Algebra: A Combined Approach (4th Edition)

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

Chapter 5 - Section 5.2 - Negative Exponents and Scientific Notation - Practice - Page 347: 1



Work Step by Step

We know that $a^{-n}=\frac{1}{a^{n}}$ (as long as $a$ is a nonzero real number and $n$ is an integer). Therefore, $5^{-3}=\frac{1}{5^{3}}=\frac{1}{125}$.
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