The first term of a geometric sequence is 3 and the multiplier, or ratio, is 2. What is the sum of the first 6 terms of the sequence? A. 6 B. 9 C. 216 D. 189

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asked Oct 17, 2018 165k views

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Tigran Babajanyan · Answer 1 · 2018-10-21T17:52:07+0000

As first term in sequence is 3 so multiplying it by common ratio 5 we get 15, then multiplying 15 by 5 we get 45 and so on the sequence is
3,15,45,225
whose sum is 288

The first term of a geometric sequence is 3 and the multiplier, or ratio, is 2. What is the sum of the first 6 terms of the sequence? A. 6 B. 9 C. 216 D. 189

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