2x^2+7x-15=0
if r and s are two solutions of the equation above and r > s, which of the following is the value of r-s?

An air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of air can it circulate per minute?

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min

The probability that a tutor will see 0, 1, 2, 3, or 4 students is given below determine the probability distribution's missing value.