Hence there is no such natural numbers exist.
Answer: The maximum height the football reaches = 51.89 feet.
Step-by-step explanation:
Given: The equation 
gives the height h, in feet, of a football as a function of time t, in seconds, after it is kicked.
Differentiate the given equation, we get
(i)
Put 
Differentiate (i) w.r.t. t, we get
< 0 i.e. h is maximum at t= 1.65625
The value of h at t= 1.65625 will be 
Hence, the maximum height the football reaches = 51.89 feet.
The equation will be 2x + 7 = 3x
subtract 2x from bothsides, you get 7 = x
so x is equal to 7
EDITED
sorry, i didnt read the sum part, so my answer is considered wrong ahaha
2(x+7) equals 3x
distribute, you get 2x+14=3x
then subtract 2x,
the answer for x is 14
It depends on the systems of equations. I would stay away from elimination, go for substitution and graph only if asked.
The answer for this problem would be 628.3 Cubic Meters.
To solve, simply follow the way of finding the volume of a cylinder.
Calculate volume of a cylinder: V = πr2h.
Calculate the lateral surface area of a cylinder (just the curved outside)**: L = 2πrh.
Calculate the top and bottom surface area of a cylinder (2 circles): T = B = πr. ...
Total surface area of a closed cylinder is:
628.3
Hope this helps:}
