Answer
$74$
Work Step by Step
We sum from i = low bound to i = high bound.
$3(3+2) + 4(4+2) + 5(5+2) = 3(5) + 4(6) +5(7) = 15 + 24 + 35 = 74$
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 11 - Section 11.3 - Series - Exercise Set - Page 651: 13
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