HEL: Let ABCD be a trapezoid with sides AB and CD parallel. Let Me and My be the midpoints of the nonparallel sides (AD and BC). Use the vector methods taught in class to show that
M1, M2 = 1/2 {(AB+DC). Include a diagram.

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.)

Eis the midpoint of line segment ac and bd also line segment ed is congruent to ec prove that line segment ae is congruent to line segment be

Awasher and a dryer cost $701 combined. the washer costs $51 more than the dryer. what is the cost of the dryer?