Answer
$\dfrac{1}{100000}$
Work Step by Step
Since, we have $a_n=a_1r^{n-1}$
Here, $n=8,a_1=100,r=\dfrac{1}{10}$
Thus,
$a_8=(100)(\dfrac{1}{10})^{8-1}=100(\dfrac{1}{10})^7=\dfrac{1}{100000}$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 11 - Review Exercises - Page 870: 36
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