Calculus: Early Transcendentals 8th Edition

Published by Cengage Learning
ISBN 10: 1285741552
ISBN 13: 978-1-28574-155-0

Chapter 1 - Section 1.4 - Exponential Functions - 1.4 Exercises - Page 54: 24

Answer

$II$ is the preferred method of payment.

Work Step by Step

$I. A_I=1,000,000,000$ cents $II.$ For 30 days, $A_{II}$=$1+2+4+...+2^{30-1}=\frac{2^{30}-1}{2-1}$ (GP with a=1, r=2, n=30) $=1,073,741,824$ cents $\gt A_I$ $\therefore$ $II$ is the preferred method of payment.
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