College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter 8, Sequences and Series - Section 8.1 - Sequences and Summation Notation - 8.1 Exercises - Page 601: 52

Answer

90

Work Step by Step

We evaluate the sum: $\sum_{i=4}^{12}10=10+10+10+10+10+10+10+10+10=10*9=90$
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