Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 10 - Section 10.3 - Geoetric Sequences and Series - Exercise Set - Page 1073: 16



Work Step by Step

The general formula to find the nth term of a Geometric sequence is given as: $ a_{n}=a_1r^{n-1}$ We are given that $ a_1=40,000; r=0.1; n=8$ Now, $ a_{8}=40,000 \times (0.1)^{8-1}=40,000 \times (0.1)^{7}$ $\implies a_{8}=0.004$
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