What is 2 +2 ?

cannot solve too hard! marking everyone (you deserve it if you are smart enough_=)

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg

What are the solutions of the equation? 6x^2 + 11x + 4 = 0 a. 4/3, 1/2 b. -4/3, -1/2 c. 4/3, -1/2 d. -4/3, 1/2

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)