In the diagram below, DF=JL=a, FE= LK = b, and triangle DEF is a right triangle. Use the drop down menus to complete the proof that if the equation A^2+B^2=c^2 is true of the side lengths in triangle JKL, then triangle JKL must be a right triangle.

The path traveled by a bottlenose dolphin as it jumps out of water is modeled by the equation y=-0.4+3x, where t is the height above water and x is the horizontal distance in feet. if a beam of light is shone upward at an angle modeled by the equation x+y=10, at what height from the waters surface will the beam of light hit the dolphin