SOLUTION: please help Given that the first term of a geometric sequence is -320 and seventh term is -3645, the common ratio to the nearest tenth is?

Algebra ->  Sequences-and-series -> SOLUTION: please help Given that the first term of a geometric sequence is -320 and seventh term is -3645, the common ratio to the nearest tenth is?      Log On


   

Question 850720: please help
Given that the first term of a geometric sequence is -320 and seventh term is -3645, the common ratio to the nearest tenth is?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
Tn = t1 * r^(n - 1)
-3645 = -320* r^(7- 1)
r = -3/2