Question

What is the sum of a 6–term geometric series if the first term is 24 and the last term is 1,417,176?

Answer 1

\[S _{n}= (a(r ^{n}-1)) /r-1\]

a= the first term = 24
n = number of terms = 6
r = common ratio

so first you have to find the common ratio

Answer 2

i know how to do it, i just dont know if my answer is right

Answer 3

what did you get?

Answer 4

1,461,460

Answer 5

hmm. what common ratio did you get?

Answer 6

9

Answer 7

i got 1,594,320

Answer 8

oh okay, thannk you

Answer 9

np