Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 5 - 5.4 - Exponential and Logarithmic Equations - 5.4 Exercises - Page 395: 28



Work Step by Step

$7^{-3-x}=242$ $\log_77^{-3-x}=\log_7242~~$ (Using the Inverse Property: $\log_aa^x=x$): $-3-x=\log_7242$ $-3-\log_7242=x$ $-3-\frac{\ln242}{\ln7}=x$ $x=-5.821$
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.