4.A 5 ft. by 20 ft room has a circular rug. If the rug has a dlameter of 10 ft., how much of the floor is not covered by the rug?

What is the most accurate measurement of 1 pound

Atoy company is considering a cube or sphere-shaped container for packaging a new product. the height of the cube would equal the diameter of the sphere . compare the volume to surface area ratios of the containers. which packaging will be more efficient? for a sphere, sa =4πr²

For which pair of functions is (gof)(a)=|a|-2?