Answer:
f(x) = 20(3/5)^x
Step-by-step explanation:
When x = 1, f(x) = 12
f(x) = 20(3/5)^1
= 20 * 3/5
= 60/5
= 12.
so f(x) = 20(3/5)^x is the answer.
The difference between the circumference of circle X and circumference of circle Y is 5π cm.
<h3>What is circumference of a circle?</h3>
This is the distance round a circle.
The circumference of circle X is calculated as follows;

The circumference of circle Y is calculated as follows;

The difference between the circumference of circle X and circumference of circle Y is calculated as follows;

Thus, the difference between the circumference of circle X and circumference of circle Y is 5π cm.
Learn more about circumference of a circle here: brainly.com/question/9782777
Answer:
g = -8
Step-by-step explanation:
Both the left and the right sides of this equation -15-2g+6g=1+6g include the term 6g. Cancel these 6g terms. This leaves us with:
-15 - 2g = 1
Next, add 15 to both sides, to isolate the -2g term: -2g = 16
Solving for g via division by -2, we get: g = -8
.08 or 8%
Explanation 900x 0.08 is 72
72x9 is 648
900+648 = 1548