Fuctions question

Question

d(t)=I.2t^2. The function d, defined above, models the distance in feet that a ball rolls down an inclined ramp in t seconds. According to this model, how many seconds would it take the ball to roll down 120 feet of the ramp?

Answer 1

d(t) = (1.2)t²

 

120 = (1.2)t²

 

120/1.2 = t²

 

100 = t²

 

√100 = t

 

Can you finish it from here?