Question

This question makes literally no sense PLEASE HELP

Answer 1

Answer:

Step-by-step explanation:

14

SA = 2 pi r * x + 2* pi r^2

r = 6

SA = 2 pi * 6 * x + 2 * pi * 6^2

SA = 12 pi * x + 72 pi

Volume = pi r^2 * x

Volume = pi 36 x

Now volume and surface area are made to be equal so

Volume = Surface area

36 pi x = 12 pi x + 72 pi                 Divide through by pi

36x = 12x + 72                               Subtract 12x from both sides

24x = 72                                        Divide by 24

x =  72/24

x = 3

15 is done exactly the same way. You can try it yourself. Only the numbers are different. Use 10 for the radius. You should get x = 2.5