Find the roots of the quadratic equation √3x²- 2x -√3= 0 by quadratic formula

What is the square root of 45? (step by step working plz)

In triangle opq right angled at p op=7cm,oq-pq=1 determine the values of sinq and cosq

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 =