Question

Need help please and thank you

Answer 1

A .4,.04,.004,.0004

Explanation:

an = 4 * (1/10)^n

Let n=1

a1 = 4 * 1/10 = 4/10 = .4

Let n=2

a2 = 4 * 1/10^2 = 4/100 = .04

Let n=3

a3 = 4 * 1/10^3 = 4/1000 = .004

Let n=4

a4 = 4 * 1/10^4 = 4/1000 = .0004