Answer:8 or 9 ft
Step-by-step explanation:
Given
The area of the pool is ![A=x^2-17x+72](https://tex.z-dn.net/?f=A%3Dx%5E2-17x%2B72)
The area is in the form of a quadratic equation
So, the roots of the equation will give the length and width of the pool
![\Rightarrow x^2-17x+72=0\\\Rightarrow x^2-8x-9x+72=0\\\Rightarrow x(x-8)-9(x-8)=\\\Rightarrow (x-8)(x-9)=0\\\Rightarrow x=8\ or\ 9](https://tex.z-dn.net/?f=%5CRightarrow%20x%5E2-17x%2B72%3D0%5C%5C%5CRightarrow%20x%5E2-8x-9x%2B72%3D0%5C%5C%5CRightarrow%20x%28x-8%29-9%28x-8%29%3D%5C%5C%5CRightarrow%20%28x-8%29%28x-9%29%3D0%5C%5C%5CRightarrow%20x%3D8%5C%20or%5C%209)
Therefore length and width can either be
.
![\Rightarrow L=8\ ft,W=9\ ft\ \text{or}\ L=9\ ft,W=8\ ft](https://tex.z-dn.net/?f=%5CRightarrow%20L%3D8%5C%20ft%2CW%3D9%5C%20ft%5C%20%5Ctext%7Bor%7D%5C%20L%3D9%5C%20ft%2CW%3D8%5C%20ft)
Its a rectangle so two sides are equal and both sides that are opposite of each other are equal. So two sides are 37. Then you add them together to get 74, then subtract it from 164 to get 90 the rest of the fence length. Then divide it by two to get 45 which is the other side lengths, so it would be a 37 by 45 rectangle one side would be 37 while the other two are 45.
Answer:
40 minutes
Step-by-step explanation:
47-7 is 40
Answer:
median 6.5
mean 6.166
range 6
Step-by-step explanation: