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ridgeboy36
Group Title
What is the sum of the geometric sequence 2,8,32,... if there are 8 terms? Answers to choose from.
a)21,845
b)43,690
c)65,535
d)87,380
 2 years ago
 2 years ago
ridgeboy36 Group Title
What is the sum of the geometric sequence 2,8,32,... if there are 8 terms? Answers to choose from. a)21,845 b)43,690 c)65,535 d)87,380
 2 years ago
 2 years ago

This Question is Closed

geoffb Group TitleBest ResponseYou've already chosen the best response.1
Do you know the formula for the sum of \(n\) terms in a geometric sequence?
 2 years ago

ridgeboy36 Group TitleBest ResponseYou've already chosen the best response.0
no could you guide me through this whole problem
 2 years ago

geoffb Group TitleBest ResponseYou've already chosen the best response.1
\[\Large{S_{n} = \frac{a_{1}(1r^{n})}{1r}}\] \(a_{1}\) is your first term. \(r\) is the ratio (what you multiply by between each term). \(n\) is the number of terms (given as 8).
 2 years ago

ridgeboy36 Group TitleBest ResponseYou've already chosen the best response.0
i got 43,690 as my answer is this correct?
 2 years ago

geoffb Group TitleBest ResponseYou've already chosen the best response.1
That's what I get.
 2 years ago

ridgeboy36 Group TitleBest ResponseYou've already chosen the best response.0
thankyou
 2 years ago
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