Question

What is the explicit rule for the geometric sequence?
500, 100, 20, 4, ...

Answer 1

Divide by 5.
500/5 = 100
100/5 = 20
20/5 = 4

Answer 2

Answer:

a(n)=4(5)^x

Step-by-step explanation:

The numbers are growing by a factor of 5 each term