HELP PLEASE. I have a geometrical proofs question and if someone could answer it as SOON as possible that would be great. Given: angle 1 and ange 2 are complementary angle 1 is congruent to angle 3 and angle 2 is congruent to angle 4
prove: angle 3 and angle 4 are complementary

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.)

What is the equation of a line that passes through points (0, 4) and (-4,-8)?

Ratio of circumference to diameter example plz i need to now what it looks like.