OpenStudy (anonymous):

is 45, -15, 5, -5/3 a geometric sequence if so how do I figure that out also what would the common ratio be

5 years ago
OpenStudy (anonymous):

get the ratio of two subsequent terms. 45/-15 = -3 also -15/5 = -3 and 5/(-5/3) = -3

5 years ago
OpenStudy (anonymous):

looks like your common ratio is -3 :)

5 years ago
OpenStudy (anonymous):

and because there is a common ratio, it's a geometric sequence

5 years ago
OpenStudy (anonymous):

Thanks man :)

5 years ago