A cubical water tank can contain 1000/125 cubic meters of water. Find the length of a side of the water tank.

Given:

Volume of cubical tank = cubic meters.

To find:

The length of a side of the water tank.

Solution:

The volume of a cubical tank is:

Where, a is the side length.

It is given that the volume of cubical tank is cubic meters. So,

Taking cube root on both sides, we get

Therefore, the length of a side of the water tank is 2 meters.

b

step-by-step explanation:

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )