Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Chapter 4 - Exponential and Logarithmic Functions - Section 4.7 Financial Models - 4.7 Assess Your Understanding - Page 347: 52

Answer

$A=1000\cdot e^{(0.1)(3)}\approx \$1349.8$ This amount is more than $\$ 1325 $, so the first option is better.

Work Step by Step

We use the compound interest formula: $A=Pe^{rt}$ We are given the following information: $t=3\text{ years} \\ r=10\%=0.1 \\ P=\$1000$ Plugging these values into the compound interest formula gives: $A=1000\cdot e^{(0.1)(3)}\approx \$1349.8$, This amount is more than $\$ 1325 $, so the first option is better.
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