The slope of any line perpendicular to ab , where a(0, -3) and b(4, 9) are two points on the line, is m =
-3
-1/3
3

The empire state building in new york city is 1454 feet tall a model of a building is 24 inches tall what is the ratio of the height of the model to the height of the actual empire state building

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%

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]