What is the product (-2d2+s)(5d2-6s)

=(−2d2+s)(5d2+−6s)

=(−2d2)(5d2)+(−2d2)(−6s)+(s)(5d2)+(s)(−6s)

=−10d4+12d2s+5d2s−6s2

=−10d4+17d2s−6s2

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere

22

step-by-step explanation:

22