In two or more complete sentences, use your knowledge of the unit circle to describe why the following trigonometric equation is true. tan(-20 degrees) = -tan(20 degrees)

At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 16 cubic feet per minute. the diameter of the base of the cone is approximately three times the altitude. at what rate is the height of the pile changing when the pile is 12 feet high? (hint: the formula for the volume of a cone is v = 1 3 πr2h.)

Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)

You love to play soccer! you make a shot at the net 8 times during a game! of those 8 attempts, you score twice. what percent of the time did you score?