Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 6 - Logarithmic Functions - 6.3 Graphing Logarithmic Functions - 6.3 Exercises: 58

Answer

$\approx 1.215$

Work Step by Step

$= \log_8 (12.5)$ Since the base of the $\log$ function is not $10$, then the change of base formula is required before evaluating by calculator: $= \frac{\log 12.5}{\log 8}$ by GDC / calculator $= 1.2146...$ $\approx 1.215$
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