The completed construction of a regular hexagon is shown below. explain why acf is a 30º-60º-90º triangle

If x=-3 is the only x-intercept of the graph of a quadratic equation, which statement best discribes the discriminant of the equation?

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?