Answer
a) $84$
b) $153$
Work Step by Step
a) If $L(t)=500(1-e^{-0.0061t})$, then if $t=30$, $L(30)=500(1-e^{-0.0061\cdot30})=83.61\approx84$
b) If $L(t)=500(1-e^{-0.0061t})$, then if $t=60$, $L(60)=500(1-e^{-0.0061\cdot60})=153.24\approx153$
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 5 - Exponential and Logarithmic Functions - 5.3 Exponential Functions - 5.3 Assess Your Understanding - Page 284: 118
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