Question

Identify the 8th term of the geometric sequence -2, -12, -72 ...
Identify the 12th term of a geometric sequence where a1 = 8 and a6 = -8,192.
Identify the 19th term of a geometric sequence where a1 = 14 and a9 = 358.80. Round the common ratio and 19th term to the nearest hundredth.

Answer 1

-72*6

Answer 2

an=a1r^(n-1)

Answer 3

suppose the common ratio is r, now apply the formula given by @optiquest

Answer 4

Ok, got that one. What about the other two?

Answer 5

same formula can be applied