8385634
8385634 8385634
  • 18-10-2016
  • Mathematics
contestada

What is the 14th term for the geometric sequence 8, -16, 32, -64,

Respuesta :

JadenRashid
JadenRashid JadenRashid
  • 18-10-2016
the 14th term would be -224
Answer Link
apologiabiology
apologiabiology apologiabiology
  • 18-10-2016
here we go


an=a1(r^(n-1))
a1=first term
r=common ratio
n=which term

common ratio is -2 (8 times -2=-16, -16*-2=32)
first term is 8
n is 14

a14=8*(-2)^(14-1)
a14=8*(2)^13
a14=8*(-8192)
a14=-65536
Answer Link

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