Answer
$x=183.47~inches$
Work Step by Step
$N=3500(10^{-0.012x})$
$22=3500(10^{-0.012x})$
$\frac{22}{3500}=10^{-0.012x}$
$\log\frac{22}{3500}=\log10^{-0.012x}$
$-0.012x=\log\frac{22}{3500}$
$x=\frac{\log\frac{22}{3500}}{-0.012}=183.47$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 5 - 5.4 - Exponential and Logarithmic Equations - 5.4 Exercises - Page 396: 84
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