You make a cylinder that has a radius of 4 feet and a height of 7 feet out of cardboard. Cardboard costs$0.08 per square foot. how much does

Question

You make a cylinder that has a radius of 4 feet and a height of 7 feet out of cardboard. Cardboard costs$0.08 per square foot. how much does it cost you to make?

in progress 0
Bình An 3 months 2021-07-19T16:35:11+00:00 1 Answers 0 views 0

Answers ( )

    0
    2021-07-19T16:36:53+00:00

    Answer:

    Step-by-step explanation:

    Here, you should find the area of the cylinder. Remember the superficial area of a cylinder is

    2\pi rh+2\pi r^2 ( )

    Since we have r= 4 and h=7, we get

    A= 2\pi (4)(7)+2\pi(4)^2=88\pi

    To find the cost you only need to multiply area A by 0.08. That is

    C= 88\pi \times 0.08

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )