An elliptical culvert is 3.3 feet tall and 8.5 feet wide. it is filled with water to a depth of 0.85 feet. find the width of the stream.

What are the sotions to the quadratic equation 9x^2=4

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Aball is dropped from a height of 10m above the ground. it bounce to 90% of its previous height on each bounce. what is the approximate height that the ball bounce to the fourth bounce?