Answer
$8$
Work Step by Step
The sum of an infinite geometric sequence is given as: $ S=\dfrac{a_1}{1-r}$
Here, $ a_1=4$ and the common ratio is: $ r=0.5$
$ S=\dfrac{a_1}{1-r}$
Now,
$ S=\dfrac{4}{1-0.5}=8$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 10 - Test - Page 1126: 13
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