Describe a function that has an inverse function that is well-defined. What process do you think you could go through to determine the original function if all you were given were the inverse function and a table of values for that function?

The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much