The relation is that the diameter is twice the length of the radius.
To make more proof, look at the attached image below.
We take the function as a sequence
Term 1 ⇒ 5
Term 2 ⇒ 4
Term 3 ⇒ 3.2
Between terms, there is a common ratio of ⁴/₅
We get it from here:
Term 2 / Term 1 =

Term 3 / Term 2 =

=

When a sequence has a common ratio between term, the sequence is a Geometric Sequence

Where

is the first term,

is the common ratio, and

is the term number
We have:

and

The formula for the function is
Answer:
25
Step-by-step explanation:
Divide 500/20
Answer:
r=0.8, a^n=1.5*0.8^n-1
Step-by-step explanation:
Answer:
the probability is 2/24 or 8.3%
Step-by-step explanation: