Find a Formula for The $n t h$ Term of the Following Geometric Sequence, Then Find the 4

question 32

Multiple Choice

Find a formula for the $n t h$ term of the following geometric sequence, then find the 4 th term of the sequence.
$9,36,144 , \ldots$

• A) \(a _ { n } = 9 ( 4 ) ^ { n } ; a _ { 4 } = 576\)
• B) \(a _ { n } = 9 ( 4 ) ^ { n } ; a _ { 4 } = 2304\)
• C) \(a _ { n } = 9 ( 4 ) ^ { n - 1 } ; a _ { 4 } = 2304\)
• D) \(a _ { n } = 9 ( 4 ) ^ { n - 1 } ; a _ { 4 } = 576\)
• E) \(a _ { n } = 9 ( 4 ) ^ { n - 1 } ; a _ { 4 } = 144\)

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