Find the indicated term of the geometric sequence.
-a1 = 4, r = 2; find $a _ { 5 }$
A)64
B)16
C)32
D)128

Name: Find the indicated term of the geometric sequence. -a1 = 4, r = 2; find $a _ { 5 }$ A)64 B)16 C)32 D)128
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Quizplus · Accepted Answer

The formula for the nth term of a geometric sequence is $ a_n = a_1 \times r^{(n-1)} $. For $ a_5 $, substitute $ a_1 = 4 $, $ r = 2 $, and $ n = 5 $: $ a_5 = 4 \times 2^{(5-1)} = 4 \times 16 = 64 $.

Find the Indicated Term of the Geometric Sequence a5a _ { 5 }a5​

Find the Indicated Term of the Geometric Sequence $a _ { 5 }$