College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 4 - Exponential and Logarithmic Functions - Exercise Set 4.4 - Page 491: 112


2 years

Work Step by Step

Insert the given $A,\ P,$ and $r$ into the formula and solve for t. $12, 000=8000e^{0.203t}\qquad.../\div 8000$ $1.5=e^{0.203t}\qquad .../$apply ln() to both sides.. $\ln 1.5=0.203t\qquad .../\div 0.203$ $ t=\displaystyle \frac{\ln 1.5}{0.203}\approx$1.99736506457$ \approx 2$ years
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