In the illustration below, the three cube-shaped tanks are identical. The spheres in any given tank are the same size and packed wall-to-wall. If each of the tanks are filled to the top with water, which tank would contain the most water. Prove your answer algebraically using x to represent the edge length of the tanks.
Write an expression to represent the amount of water remaining in a 4th tank which is the same size as the others and which contains 512 spheres. Leave your expression in terms of π.

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240

4

step-by-step explanation:

im pretty sure it's 4 beacsue 8/2 equals 4

i think the length is 12 and the width is 17