Step-by-step explanation:
1/2, 2, 9/2, ....
equivalent with :
½, 4/2, 9/2, ...
the rule is : Un = n²/2
so, U10= 10²/2 = 100/2= 50
Solution: The weight of pucks manufactured by a particular process is bell-shaped and has mean 5.75 ounces
Therefore, we can use the Empirical Rule to find the standard deviation. Empirical Rule states that approximately 99.7% of all observations fall within three standard deviations of the mean.
Also we know that the acceptable range is between 5.5 and 6
So ![5.5=5.75-3\times SD](https://tex.z-dn.net/?f=5.5%3D5.75-3%5Ctimes%20SD)
![3\times SD=5.75-5.5](https://tex.z-dn.net/?f=3%5Ctimes%20SD%3D5.75-5.5)
![SD=\frac{0.25}{3} =0.083](https://tex.z-dn.net/?f=SD%3D%5Cfrac%7B0.25%7D%7B3%7D%20%3D0.083)
Also ![6=5.75+3\times SD](https://tex.z-dn.net/?f=6%3D5.75%2B3%5Ctimes%20SD)
![3\times SD=6-5.75](https://tex.z-dn.net/?f=3%5Ctimes%20SD%3D6-5.75)
So if 99.7% of the pucks are to be usable in professional games, the standarddeviation should be 0.083.
Here, EF = 1/2(AB + CD)
4x+3 = 1/2 (x+8 + 180)
2(4x + 3) = x + 188
8x + 6 = x + 188
8x - x = 188 - 6
7x = 182
x = 182/7
x = 26
In short, Your Answer would be 26
Hope this helps!
6 feet by 10 feet would use 60 feet of fencing. that's the biggest I can think of without going over 62 feet