Answer
$40$
Work Step by Step
Using the definition of the summation symbol, $\displaystyle\sum_{i=0}^4 i(i+1)
$ evaluates to
\begin{array}{l}
0(0+1)+1(1+1)+2(2+1)+3(3+1)+4(4+1)
\\=
0+2+6+12+20
\\=
40
.\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: 48a
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.
