What is the simplest form of 8√5 + √250 - √720? i’ve been crying over this for an hour pls help

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

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 =

Def rotates 90 clockwise about point a to create d’ e’ f’. therefore, which equation must be true ?