Question

What is the 9th term of the geometric sequence where a1 = –7 and a6 = –7,168? Please help
–327,680
–393,216
–458,752
–524,288

Answer 1

is it C?

Answer 2

@baziham

Answer 3

plz

Answer 4

sorry, i dont understand

Answer 5

i dont understand the formula i need to use

Answer 6

in geometric you have:
a1, a1*q, a1*q^2,...

ai=a1*q^(i-1)

Answer 7

just put i=6 and the obtain q
then set i=9 and obtain a9
ok