College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter 4, Exponential and Logarithmic Functions - Chapter 4 Review - Concept Check: 71

Answer

$x=-\frac{3\log 0.63}{2\log 5}\approx 0.430618$

Work Step by Step

$5^{-2x/3}=0.63$ $\log(5^{-2x/3})=\log 0.63$ $\frac{-2x}{3}\log 5=\log 0.63$ $x=-\frac{3\log 0.63}{2\log 5}\approx 0.430618$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.