Identify all points on the curve y equals 4 tangent x, negative pi divided by 2 less than x less than pi divided by 2, where the tangent line is parallel to y equals 8 x.

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

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1

Last week , donnell practiced the piano 3 hours longer than marcus . together, marcus and donnell practiced the piano 11 hours . for how many hours did each young man practiced the piano