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: 32



Work Step by Step

$500e^{-2x}=125$ $e^{-2x}=\frac{125}{500}=0.25$ $\ln e^{-2x}=\ln0.25~~$ (Using the Inverse Property $\ln e^x=x$): $-2x=\ln0.25$ $x=\frac{\ln0.25}{-2}=0.693$
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.