Web Analytics

Verified Answer :

syed514

common ratioo = 8.5 / 5 = 1.7

9th term = ar^ 9-1 = 5 * 1.7 ^ 8

sorry i havent got my calculator to work this out

HomertheGenius

The geometric sequence:
a 1 = 5, a 2 = 8.5,  a 3 = 14.45,  a 4 = 24.565,...
r = 8.5 / 5 = 1.7
a n = a 1 r^(n-1)
a 9 = 5 1.7^(8) = 5 * 69.757574
a 9 = 348.7878205 ≈ 348.8

Related Questions