Aswimming pool is in the shape of a rectangular prism. it holds 1,440 cubic feet of water. if the base measures 15 feet by 12 feet, then how deep is the pool?

The pool is 8 feet deep.

Step-by-step explanation:

The formula for the volume of a rectangular prism is:

V = lwh, where l=length, w=width and h=height

Since the problem gives you the length and width of the rectangle as well as the total volume, you can plug in the values and solve for the missing variable 'h':

1440 = (15)(12)h  or 1440 = 180h

Divide both sides by 180:  

So, h = 8.  The height of the rectangular prism, or the depth of the pool, is 8 feet.  

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step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.