Solve the system using the linear combination method: 2x - 4y = 36
4x + 3y = -5
(-7,4) (7,-4) (-4,7) (4,-7)

How do the graphs of y = 1/x and y=5/x+6 compare?

Part a: select all of the ordered pairs that are located on the graph of the equation. part b: does the graph of the equation represent a function? select all correct answers for part a and one answer for part b.

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%