Answer
$15$
Work Step by Step
Using the definition of the summation symbol, $\displaystyle\sum_{i=0}^3 2^i
$ evaluates to
\begin{array}{l}
2^0+2^1+2^2+2^3
\\=
1+2+4+8
\\=
15
.\end{array}
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 11 - Cumulative Review - Page 670: 48b
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