Answer
$6$
Work Step by Step
The nth term is given by $a_n= a_1 r^{n-1}$ ...(1)
Here, we have Common Ratio $r=\dfrac{1}{2}$ and first term $a_1=32$
Equation (1) gives: $a_n=32 \times (\dfrac{1}{2})^{n-1}$
Hence, $n = 6$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 12 Sequences and Series - 12.3 Analyze Geometric Sequences and Series - 12.3 Exercises - Problem Solving - Page 815: 58a
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