A rectangle is drawn on a coordinate plane and has vertices at ( − 4, 9), (5, 9), (5, − 2), and ( − 4, − 2). How many units longer is the width of this rectangle than its length?

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

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%

Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.