Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 9 - Section 9.4 - Exponential Growth and Decay functions - Exercise Set - Page 564: 3

Answer

The final amount after 41 years of growth is approximately $144,302$.

Work Step by Step

RECALL: Exponential growth is represented by the formula $y=C(1+r)^x$ where C = initial/original amount r - growth rate x = number of time intervals The given exponential growth has: C = 2000 r = $11\%$ x = 41 years Substitute these value into the given formula above to have: $y=2000(1+11\%)^{41} \\y=2000(1+0.11)^{41} \\y=2000(1.11^{41}) \\y=144,301.9254 \\y\approx 144,302$
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