Answer
155
Work Step by Step
Using the rules of sequences, we find:
$$ \sum _{n=1}^55\cdot 2^{n-1} \\ = 5\cdot \frac{1-2^5}{1-2} \\ =155 $$
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Practice Final Exam - Page 706: 68
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