The triangles shown are similar. Find x and the measure of side DE.
Help pls. ?

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)

Answer asap evaluate 4-0.25g+0.5h4−0.25g+0.5h when g=10g=10 and h=5h=5.

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3