SOLUTION: i need help on how to solve geometric series. I have a problem that i simply cannot figure out and i would appreciate your help. My problem is: if A to the first= -54, and r= 2/3

Algebra ->  Sequences-and-series -> SOLUTION: i need help on how to solve geometric series. I have a problem that i simply cannot figure out and i would appreciate your help. My problem is: if A to the first= -54, and r= 2/3      Log On


   



Question 204863: i need help on how to solve geometric series. I have a problem that i simply cannot figure out and i would appreciate your help. My problem is: if A to the first= -54, and r= 2/3 then wich answer is correct?
A. -54, 36, -24, 16
B. -54, -36, -18, -9
C. -54, -36, -24, -16
D. -54, -53 1/3, -52 2/3, -52
Please show me how to solve this problem and give me the solution. thank you

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
if A to the first= -54, and r= 2/3 then wich answer is correct?
A. -54, 36, -24, 16
B. -54, -36, -18, -9
C. -54, -36, -24, -16
D. -54, -53 1/3, -52 2/3, -52
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Start with -54 and multiply repeatedly by 2/3.
-54, -36, -24, -16, -32/3, -64/9 etc.
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For the 1st 4 terms,
that's C.