What is the expanded form of (x-2)(x+2)

x^2 -4

Step-by-step explanation:

Use FOIL if you need to or memorize the pattern (x-a)(x+a)=x^2-a^2

26

step-by-step explanation:

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 !