Question

For the geometric series 1+4+16+64+256 what is the value of r?

Answer 1

i think its 341

Answer 2

To find r, just pick any term (but the first one) and divide it by the previous term

Answer 3

its not asking for sum @mathisfun13

Answer 4

its asking just for the common ratio r

Answer 5

256?

Answer 6

nopes. do exactly as jim suggested

Answer 7

if u take 256, its previous term is 64.

so r = 256/64
= ?

Answer 8

4

Answer 9

yes, if you take 16, its previous term is 4

so r = 16/4
= ?

Answer 10

4

Answer 11

so the value of r is 4

Answer 12

yes you can try that wid any term and its previous term. you wil end up wid 4 always

Answer 13

yes ! r is the common ratio

Answer 14

equals 4 here