xzibethuglife xzibethuglife
  • 14-05-2019
  • Mathematics
contestada

would be nice to if somebody helped me. ​

would be nice to if somebody helped me class=

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 15-05-2019

Answer:

  1,456

Step-by-step explanation:

The sum of n terms of a geometric sequence with first term a1 and common ratio r is given by ...

  Sn = a1·(r^n -1)/(r -1)

For your series with a1=4, r=3, and n=6, the sum is ...

  S6 = 4·(3^6 -1)/(3 -1) = 2·728 = 1,456

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