Question

What is the next number in this geometric sequence?

-3.24, 9.72, -29.16, 87.48, , ...

Answer 1

Hi rachel :)
Can you find the common ratio "r" between the terms ? or know what it is ?

Answer 2

i think its 3 i got 3 by dividing 9.72 & -3.24 (:

Answer 3

when you dive a positive number by a negative number, you get a negative number :)

Answer 4

Oh yeah its -3 haha but the choices are A. 174.96
B. -174.96
C. -262.44
D. 262.44

Answer 5

ok, so -3 is the common ratio :)

each nect term is -3 times the current term!

so the next term in your sequence will be 87.48 times -3 = ... ?