23. An 80-1b weight is placed on a lever, 9ft from the fulcrum. What amount of weight should you put 6ft from
the fulcrum to balance the lever?

Consider 6x2 + 6x + 1. which term immediately tells you that this expression is not a perfect square trinomial? justify your answer

Reflect the point (7,0) across the y-axis

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 .