The angle of elevation from a viewer to the top of a flagpole is 50°. The viewer is 80 ft away and the viewer's eyes are 5.5 ft from the ground. How high is the pole to the nearest tenth of a foot?

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 are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.