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anonymous
 5 years ago
The first term of a geometric sequence is 64, and the second term is 16. Find the fifth term. Can someone help me?
anonymous
 5 years ago
The first term of a geometric sequence is 64, and the second term is 16. Find the fifth term. Can someone help me?

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Call the terms: \[a + ar + ar^2 + .... + ar^{n1} \] a = 64 ar = 16 => r = ... n = 5 So last term is \[ ar^{51} = ar^5 = ...\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so the answer is 4000?
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