HELPPP FAST PLS Select the correct answer. Which expression is equivalent to cos(4x) + cos(2x)?
O A. 2cos(3x)cos e
OB. -2sin(3x)sint
OC. 2sin(3x)sins
OD. -2cos(3x)cost

Astudent survey asked: "how tall are you (in inches)? " here's the data: 67, 72, 73, 60, 65, 86, 72, 69, 74 give the five number summary. a. median: 73, mean: 70.89, iqr: 5, min: 60, max: 74 b. 60, 66, 72, 73.5, 86 c. 60, 67, 72, 73, 74 d. 0, 60, 70, 89, 74, 100

Find the commission on a $590.00 sale if the commission is 15%.

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.