K^2= 4 (mod 7) or k^2 has a remainder of 4 when divided by 7 k^3 = 1 (mod 7) or k^3 has a remainder of 1 when divided by 7 3k = ? (mod 21) or 3k has a remainder of ? when divided by 21

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

answer: ur v dumb

step-by-step explanation: