Yo anyone got a PS4 drop your username below

The two cones below are similar. what is the height of the smaller cone?

To prove a polygon is a rectangle, which of the properties listed must be included in the proof?

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