Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 12 - Exponential Functions and Logarithmic Functions - Review Exercises: Chapter 12 - Page 843: 49

Answer

$0.8982.$

Work Step by Step

${{\log }_{6}}5$ Now, use the change of base formula: ${{\log }_{a}}x=\frac{{{\log }_{b}}x}{{{\log }_{b}}a}$ It is always assumed that the log means ${{\log }_{10}}$. Thus, ${{\log }_{6}}5=\frac{\log 5}{\log 6}$ The answer can be calculated by using a Ti-84: Step1: Press ON key. Step2: Press LOG key. Step3: Enter the value 5. Step4: Press “)” key. Step5: Press “$\div $ ” key. Step6: Press LOG key. Step7: Enter the value 6. Step8: Press ENTER key. The result obtained is 0.8982. Thus, ${\log \left( 5 \right)}/{\log \left( 6 \right)}\;\approx 0.8982$
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