Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Chapter 7 - Exponential and Logarithmic Functions - 7-5 Exponential and Logarithmic Equations - Practice and Problem-Solving Exercises - Page 473: 15

Answer

$x\approx1.5850$

Work Step by Step

Recall the definition of a logarithm (pg. 451): $\log_{b}{x}=y$ iff $b^y=x$ Applying this definition to our equation (with $b=2, y=x, x=3$), we get: $\log_{2}{3}=x$ Next, recall the change of base formula (pg. 464): $\log_{b}{m}=\frac{\log_{c}{m}}{\log_{c}{b}}$ Applying this property to our last equation, we get: $\log_{2}{3}=x$ $\dfrac{\log 3}{\log 2}=x$ Use a calculator to obtain: $x\approx1.5850$
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