Anumber cube is rolled many times with the results shown in the table below. what is the experimental probability of rolling an even number? number rolled 1 2 3 4 5 6 number of rolls 13 12 12 14 11 18 44% 45% 50% 55%

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 sum of the speeds of two trains is 720.2 mph. if the speed of the first train is 7.8 mph faster than the second train, find the speeds of each.

Which is an x-intercept of the graphed function? (0, 4) (–1, 0) (4, 0) (0, –1)