SOLUTION: If the sixth term of a sequence is 128 and the common ratio is 2, what is the first term?

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Question 1040829: If the sixth term of a sequence is 128 and the common ratio is 2, what is the first term?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
If the sixth term of a sequence is 128 and the common ratio is 2, what is the first term?
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Form: a(n) = a*r^(n-1)
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a(6) = a*2^5 = 128
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a*32 = 128
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a = 4 (That is the 1st term)
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Cheers,
Stan H.
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