Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 4 - Inverse, Exponential, and Logarithmic Functions - Chapter 4 Test Prep - Review Exercises: 51

Answer

$\approx 6.958$

Work Step by Step

$4\left( 1.06\right) ^{x}+2=8\Rightarrow 4\left( 1.06\right) ^{x}=6\Rightarrow \left( 1.06\right) ^{x}=\dfrac {6}{4}\Rightarrow x=\log _{1.06}\dfrac {6}{4}\approx 6.958$
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