Question 1197620
A ball is thrown off the top of building:
path:  s(t)=-32t^2 + 24t + 60     | As previously astutely corrected 
How tall is the building?   t= 0,  s(0) = 60 
building 60 ft tall.
____________________
Maximum Height: at time t = -b/2a = 24/64 = 3/8 = .375sec 
Using 'calculate' function on graphing software:  s(.375) = 64.5ft
64.5 ft the maximum height reached.
*[illustration g].