Provide an example of a function that does not have an inverse function. How do you prove that it is not a function?

The table below shows the height of a ball  x  seconds after being kicked.  what values, rounded to the nearest whole number, complete the quadratic regression equation that models the data? f(x)  =  x2  +  x  +  0based on the regression equation and rounded to the nearest whole number, what is the estimated height after 0.25 seconds?   feet

The owner of the plant nursery where you were tells you to fill 350 ml bottles from a 30 l from a fertilizer

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25