Question

Please help me!! I really appreciate it thank you!

Answer 1

Explanation:

Given sequence is: 8, 16, 32, 64, 128

Here, a = 8

`r = (16)/(8) = (32)/(16) = (64)/(32) = (128)/(64) = 2 \\ \because \: f(n) = ar^(n - 1) \\ \therefore \: f(n) = 8(2)^(n - 1) \\ where \: n = \{1, \: 2, \: 3, \: 4, \: 5 \}`

Hence, option B is the correct answer.