Answer
$x\approx0.21$
Work Step by Step
Use the natural log on both sides, and then solve for $x$.
$5^x=1.4$
$\ln5^x=\ln1.4$
$x\ln5=\ln1.4$
$x=\frac{\ln1.4}{\ln5}$
$x\approx0.21$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter 4 - Summary, Review, and Test - Test - Page 513: 12
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