Atriangle has vertices at f (8, 3), g (3, 5), and h (1, 7). what are the coordinates of each vertex if the triangle is rotated 180° about the origin counterclockwise?

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.