9 - 6 + 4 - 8/3 ..,
geometric series a(n) = a1r^(n-1)
r = a(n+1)/a(n)
-6/9 = -2/3
4/-6 = -2/3
-8/3/4 = -2/3
so r = -2/3 and a1 = 9
Sn = a1(1-r^n)/(1-r) = 9(1-(-2/3)^n)/(1-(-2/3))
n is infinite Sn = 9/(5/3) = 27/5
Answer: the answer is 12
Step-by-step explanation:
Answer:yhjghjghj
Step-by-step ex6757lanation:
Answer:
I think it's A
Step-by-step explanation:
A because it can be rearranged to the y = mx + c format. y = -1/40 x + 4