Nadia designs a water ride and wants to use a half-cylindrical pipe in the construction. If she wants the waterway to be 8 ft wide when the water is 2 ft deep, what is the diameter of the pipe?

Step-by-step explanation:

In the image attached you can observe a cross section of the half-cylindrical pipe.

So, if the pipe is 8 feet wide, that means its diameters is also 8 feet, because the wideness coincide with the distance from one point to an opposite point crossing through the center of the circumference.

Therefore, the diameter is 8 feet.

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2