<h3>
Answer: Choice A</h3>
Explanation:
When we rotate a rectangle around an axis of symmetry, we end up with a cylinder. Think of a revolving door or a turbine. The flat door moves through 3D space to produce or carve out a 3D cylinder.
This figure is composed of two rectangles, so we'll end up with two cylinders. They will both share the same center, so we'll have a sideways two-layer wedding cake structure when everything is said and done. This points to choice A as the final answer.
Answer:
I think h is 20 I am not sure
The x-coord. of the vertex is halfway between the given zeros. Here, it'd be halfway between x=3 and x=9, which comes out to x = 6 (answer).
The amount he will have left over is 14. Because there are three pizzas that need 2 cups each. (2x3=6) If he bought a 20 cup bag then he has 14 cups left over. (20-6=14)
