A child on a 1.85 m long swing is pulled back to a 37.8 angle and released. How fast is she moving at the bottom of the swing?

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

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)

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.