anonymous
  • anonymous
What is the sum of the geometric -4, 24, -144,... if there are 7 terms? Answers to choose from. a)-411,772 b)308,829 c)-159,964 d)119,973
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
@sauravshakya
anonymous
  • anonymous
@T-Wrx
anonymous
  • anonymous
@Spectrum

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anonymous
  • anonymous
@sauravshakya can you help me please
anonymous
  • anonymous
There first term is -4 and common ratio is 24/(-4) =-6 Now, Sn = a(r^n -1)/(r-1)
anonymous
  • anonymous
Does it help?
anonymous
  • anonymous
yes
anonymous
  • anonymous
so, what did u get?
anonymous
  • anonymous
i got -159,964
anonymous
  • anonymous
is this correct @sauravshakya ?
anonymous
  • anonymous
very correct
anonymous
  • anonymous
thank you
anonymous
  • anonymous
welcome

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