Answer:
The total amount of screen needed is 22 ft^2
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
The surface area of a rectangular prism is equal to
![SA=2B+Ph](https://tex.z-dn.net/?f=SA%3D2B%2BPh)
where
B is the area of the base
P is the perimeter of the base
h is the height of the rectangular prism
<em>Find the area of the base B</em>
![B=(3)(1)=3\ ft^2](https://tex.z-dn.net/?f=B%3D%283%29%281%29%3D3%5C%20ft%5E2)
<em>Find the perimeter of the base P</em>
![P=2(3+1)=8\ ft](https://tex.z-dn.net/?f=P%3D2%283%2B1%29%3D8%5C%20ft)
The height of the prism h is
![h=2\ ft](https://tex.z-dn.net/?f=h%3D2%5C%20ft)
substitute the values
![SA=2(3)+(8)(2)](https://tex.z-dn.net/?f=SA%3D2%283%29%2B%288%29%282%29)
![SA=22\ ft^2](https://tex.z-dn.net/?f=SA%3D22%5C%20ft%5E2)
The total amount of screen needed is 22 ft^2
Answer:
There is an infinite number of solutions.
Step-by-step explanation:
When you simplify the left side of the equation, you get -7n - 14, which is equal to the right side. If you were to plug in any number for n, it will equal the same on both sides of the equation.
Answer:
1.3125 gallons would have been wasted in 7 days
Step-by-step explanation:
mathematically, there are 0.0625 gallons in a measuring cup
So within the time frame, 0.0625 of liquid was lost
The time frame is 8 hours difference
The number of hours in 7 days will be;
7 * 24 = 168 hours
0.0625 gal in 8 hours
x gal in 168 hours
x * 8 = 168 * 0.0625
8x = 10.5
x = 10.5/8
x = 1.3125 gallons
Answer:
I think it would be 2+ -11
Step-by-step explanation: