Answer
The partial sum is 315
Work Step by Step
Use the formula for the partial sum of a geometric sequence: $S_n = a\frac{1-r^{n}}{1-r}$
Plug in the numbers given for a r and n: $S_n = 5\frac{1-2^{6}}{1-2}$ = 315
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 12 - Section 12.3 - Geometric Sequences - 12.3 Exercises - Page 865: 49
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