SOLUTION: Ben threw a toy upward from the window of their two story house. It's height h, in feet, in t seconds is given by h = -16t^2+48t+36. After how many seconds will the toy reach the g

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Ben threw a toy upward from the window of their two story house. It's height h, in feet, in t seconds is given by h = -16t^2+48t+36. After how many seconds will the toy reach the g      Log On


   



Question 1132659: Ben threw a toy upward from the window of their two story house. It's height h, in feet, in t seconds is given by h = -16t^2+48t+36. After how many seconds will the toy reach the ground? (Hint: the toy will reach the ground ai h=0)
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.

At the end of your post you may read the HINT, which explains you what to do.


You need to solve the equation


    -16t^2 + 48t + 36 = 0


and find its positive root.

That's all !