jewelissa jewelissa

21-04-2017
Mathematics

contestada

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

Respuesta :

elizabethlavitm elizabethlavitm

24-04-2017

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

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