Answer
Makes sense.
Work Step by Step
$\sum_{i=1}^{8} (i+7)=(1+7)+(2+7)+(3+7)+(4+7)+(5+7)+(6+7)+(7+7)+(8+7)=92$
$\sum_{i=1}^{8} (i)+7=(1)+(2)+(3)+(4)+(5)+(6)+(7)+(8)+7=43$
Thus it makes sense.
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter 8 - Sequences, Induction, and Probability - Exercise Set 8.1 - Page 716: 95
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