Precalculus (6th Edition) Blitzer

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

Chapter 10 - Test - Page 1126: 13

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$
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