Answer
$\frac{1}{4}.$
Work Step by Step
We know that if $y=\log_a{b}$, then $a^y=b$.
Hence here: $x^{-3}=64\\x^3=\frac{1}{64}\\x=\sqrt[3] \frac{1}{64}=\frac{1}{4}.$
College Algebra (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0321979478
ISBN 13:
978-0-32197-947-6
Chapter 6 - Review Exercises - Page 500: 36
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