Answer
$\dfrac{341}{128}$
Work Step by Step
Since, we have $S_n=\dfrac{a_1(1-r^{n})}{1-r}$
Here, $n=5,a_1=2,r=\dfrac{1}{4}$
Thus,
$S_{5}=\dfrac{2[1-(\dfrac{1}{4})^{5}]}{1-(\dfrac{1}{4})}=\dfrac{8}{3}(\dfrac{1023}{1024})=\dfrac{341}{128}$
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: 42
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
