Question

medal! pleas help
What is a rule for the nth term of the geometric sequence -3,-6,-12,-24,-48,...?
A) an=2(-3)n-1
B) an=3(2)n-1
C) an=-2(-3)n-1
D) an=-3(2)n-1

Answer 1

first number is -3 so -3 has to be multiplied by something \[ar ^{n-1}\]

Answer 2

-3(r)n-1 what is multiplied by -3 to get -6?

Answer 3

thanks:)

Answer 4

did you get the answer?

Answer 5

yep!