SOLUTION: After how many seconds is needed for a thrown ball to reach a 14 m distance if its distance is given by the relation d=10+40t-5t^2? (t=time in seconds)

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: After how many seconds is needed for a thrown ball to reach a 14 m distance if its distance is given by the relation d=10+40t-5t^2? (t=time in seconds)       Log On


   

Question 1169041: After how many seconds is needed for a thrown ball to reach a 14 m distance if its distance is given by the relation d=10+40t-5t^2? (t=time in seconds)
Answer by ikleyn(52933) About Me  (Show Source):
You can put this solution on YOUR website!
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Solve this quadratic equation


    10 + 40t - 5t^2 = 14  meters.