There is a tank shape rectangular prism that is 20 by 20 by 16 cm. amy fills the tank 3/4 of the way, what will be the volume of the water

Find the volume of the rectangular prism by solving the equation V = 20 × 20 × 16.

V = 6,400

Now all you have to do is get 3/4 of that number. For me, it's easier to multiply decimals, so I will change 3/4 into it's decimal form, .75

V = 6,400 × .75 = 4,800.

The volume of the tank is 4,800 cm³.

the 3rd option is right

step-by-step explanation:

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.