The value of y varies directly as the square of x and y=27 when x=9. Find the equation that represents this relationship. Report the proportionality constant as a reduced fraction when necessary.

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .

What is the difference between the equations of a vertical and a horizontal line?

Ibeg you to me 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?