SOLUTION: What is the 10th term of the geometric sequence -3, 15, -75...?

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Question 1204298: What is the 10th term of the geometric sequence -3, 15, -75...?
Answer by mananth(16946) About Me  (Show Source):
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What is the 10th term of the geometric sequence -3, 15, -75...?


the geometric sequence -3, 15, -75...?
15/-3 =-5
-75/15=-5common ratioo = -5
nth term of GP = Tn+=+ar%5E%28n-1%29
a=-3, r=-5
t10 = -3*(-5)^(10-1)

t10 = -3*(-5)^(9)
=5859375
10th term of the geometric sequence -3, 15, -75... is 5,859,375.