Question

Determine what type of sequence this is:

6.5, 5.3.5, 2....
Arithmetic or
Geometric

What is the common difference or common ratio of this sequence?
6.5, 5.3.5. 2....

Answer 1

6.5=30, 5.3.5.2=150

It is a geometric series.

30, 150,......

a1=30

common ratio

r= 150/30= 5

an=ar^(n-1)