Question

PLEASE HELP DUE IN 5 MINS

A bakery is making cupcakes using a cylindrical mold. The cupcake mold has a diameter of 4.5 centimeters and is 3 centimeters tall. Which of the following shows a correct method to calculate the amount of cupcake batter needed to fill the mold all the way to the top? Use 3.14 for π.

V = (3.14)(4.5)2(3)
V = (3.14)(2.25)2(3)
V = (3.14)(3)2(4.5)
V = (3.14)(3)2(2.25)

Answer 1

`V=(3.14)(2.25)^2(3)`

Explanation:

In order to find the volume of a cylinder you have to use the formula
`V=\pi r^2h`

For
`\pi`, we plug in 3.14 (because that is what the question asks for)

To find the radius (r), we take half of the diameter

`4.5/2`

For h, we plug in the height of the mold

When we plug all of these in, we get

`V=(3.14)(2.25)^2(3)`