Two different types of alloy, a and b, have been used to manufacture experimental specimens of a small tension link to be used in a certain engineering application. the ultimate strength (ksi) of each specimen was determined, and the results are summarized in the accompanying frequency distribution.

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.)

The length of the line segment joining the midpoints of sides ab and bc of the parallelogram abcd is 10. find the length of diagnol ac

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?