Plz help 70 points! What is the area of this figure? Enter your answer in the box. m²

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

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

The formula to determine energy is e=1/2mv2? what is the formula solved for v?