Question

The function to gives the area of a circle with radius r. It can be written in

equation form as fo) = 3.142. What is f(5)?

Answer 1

The function f(r) = πr² gives the area of a circle with radius r. To find f(5), substitute 5 for r in the equation: f(5) = π(5)². The result is 25π.

Step-by-step explanation:

The function f(r) = πr² gives the area of a circle with radius r. To find f(5), substitute 5 for r in the equation:

f(5) = π(5)²

Simplifying the equation gives:

f(5) = π(25)

So, f(5) = 25π.