Answer
$-1$
Work Step by Step
Apply: $a^{-1}=\displaystyle \frac{1}{a}$
$\displaystyle \log_{5}\frac{1}{5}=\log_{5}5^{-1}\quad$... Apply the property $\log_{a}a^{k}=k$
$=-1$
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 12 - Exponential Functions and Logarithmic Functions - Mid-Chapter Review - Mixed Review - Page 812: 8
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