I understand everything but putting the equation into two binomials that when multiplied together equal that equation. I know how to do that with normal numbers, but not decimals. It got me really confused
A juggler is performing an act by juggling several balls. The juggler throws the balls up at an initial height of 3.9 feet with a speed of 14.8 feet per second. If the juggler did not catch a ball, about how long will it take the ball to hit the floor?
using this equation?H(t)=-16t^2+vt+s

Question

I understand everything but putting the equation into two binomials that when multiplied together equal that equation. I know how to do that with normal numbers, but not decimals. It got me really confused
A juggler is performing an act by juggling several balls. The juggler throws the balls up at an initial height of 3.9 feet with a speed of 14.8 feet per second. If the juggler did not catch a ball, about how long will it take the ball to hit the floor? 
using this equation?H(t)=-16t^2+vt+s

shane_b · Answer

The kinematic equation is:
$$h(t)=-16t^2+vt+s$$
Given the values in the  problem it becomes:$$h(t)=-16t^2+(14.8ft/s)t+3.9ft=0$$All you have to do is solve for t.  You will get two values...one will obviously be 0 and the other will be the total flight time.

anonymous · Answer

http://answers.yahoo.com/question/index?qid=20110819123824AAJlbIG h(t) = 0 = 3.9 + 14.8t - 16.1t² 16.1t² - 14.8t - 3.9 = 0 t = [14.8 ± √(14.8² + 4*16.1*3.9)]/32.2 ≈ 1.14 seconds (the t < 0 root can be discarded as outside the domain)

anonymous · Answer

http://openstudy.com/study#/updates/4f4a9663e4b00c3c5d3375e1

shane_b · Answer

Well, I guess one answer will actually be -.0214s...but as @Yahoo!  said, you can disregard it since you can't have a negative time.