What are the roots of this equation? x2 − 2x + 3 = 0

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =

Aye asap pls ! markin da brainiest too ! btw da step choices are all add, distribute, divide, n subtract