Answer
$3$
Work Step by Step
$\dfrac {1}{27}=x^{-3}\Rightarrow \dfrac {1}{3^{3}}=x^{-3}\Rightarrow 3^{-3}=x^{-3}\Rightarrow x=3$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 4 - Inverse, Exponential, and Logarithmic Functions - 4.2 Exponential Functions - 4.2 Exercises - Page 432: 95
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