thebluepilot
  • thebluepilot
HELP!!!! REALLY NEED QUESTION ANSWERED!!!!! MEDAL AND FAN What is the sum of the geometric sequence 1, 3, 9, ... if there are 14 terms? 1,285,956 2,391,484 3,556,228 4,287,382
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
So do you know the pattern at least?
anonymous
  • anonymous
Do you know the pattern of the sequence? @thebluepilot
thebluepilot
  • thebluepilot
Not really... I'm kind of frantic cause i'm lost on remembering how to to a geometric sequence.

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anonymous
  • anonymous
Okay so clearly we are multiplying by 3
anonymous
  • anonymous
1 x 3 = 3
anonymous
  • anonymous
3 x 3 = 9
anonymous
  • anonymous
So just continue to do that until you get 14 terms. So do that and tell me what you get.
thebluepilot
  • thebluepilot
So we just go on and on till we reach the 14th term?
anonymous
  • anonymous
Yes. Correct. When you get 14 terms you simply add them all. :) @thebluepilot
triciaal
  • triciaal
|dw:1441213061185:dw|
triciaal
  • triciaal
|dw:1441213177486:dw|
thebluepilot
  • thebluepilot
Is it 3,556,228? Cause after doing the sequence, i think i hit that number.
triciaal
  • triciaal
|dw:1441213328373:dw|
thebluepilot
  • thebluepilot
2,391,484?
triciaal
  • triciaal
that's what I got I used the formula review the above
thebluepilot
  • thebluepilot
Thank you very much!

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