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11-06-2018
Mathematics

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The first term of a geometric sequence is 768, and the common ratio is 0.5. What is the 9th term of the sequence?

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11-06-2018

The 9th term of the geometric sequence is 3.

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Аноним Аноним

11-06-2018

an = a1r^(n-1) where a1 = first term and r = common ratio

so a9 = 768*0.5^8 = 3 (answer)

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