Answer
$\approx1.110$
Work Step by Step
Use a calculator and round off the value to three decimal places to obtain:
$ \frac{-ln5+3log80}{log5+ln20}\approx1.110$
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 5 - Exponential and Logarithmic Functions - 5.4 Logarithmic Functions - 5.4 Assess Your Understanding - Page 295: 58
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