Select the expression that is equivalent to (x + 4)^2

Step-by-step explanation:

(x + 4)^2 =

(x + 4)(x + 4) =

x^2 + 4x + 4x + 16 =

x^2 + 8x + 16

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !