What is the equation of the quadratic graph with a focus of (6, 0) and a directrix of y = −10?

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.)

Select the two pairs of figures that are similar.

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)