The area a of a circle with radius r is given by the function a(r)= pie r^2. explain what a(3) represents

Hello!

A(r) is a function. It takes a value of r, and from that calculates the value A. In this case, it takes the value of a radius, and depending on what that value is, it calculates the area.

A(3) would therefore represent the area based off of a radius of 3.

Hope this helps!

the answer is y = 11.54

hope this : )

10 down (bang1)

5 up

5down (2)

2.5 up

2.5 down (3)

1.25 up

1.25 down (4)

now add them up : )

hoped i lol