A skier accelerates at a rate of 4.6m/s² for 4.5s. What is his initial velocity if his final velocity is 21m/s?

1) c 2143.6 cm

2) c 113.0 m

3) a 33.5 ft

4)   d 2 cm

5) c 20 mm

6) 180 in

7) d 120 ft

answerthe vertex form

step-by-step explanation:

if x = 1, then the answer is 3.5

explanation:

previous steps have made pa≅ pb ≅ st ≅ su. setting the compass width to ab allows you to make tu the same length. then δstu ≅ δpab by the sss congruence postulate, and ∠p ≅ ∠s by the reason cpctc.