SOLUTION: Hey My math question is How many seconds will it take for an object dropped off the top of 555 ft Washingtin Monument to hit the ground. h=16tsquared + 64t?

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Hey My math question is How many seconds will it take for an object dropped off the top of 555 ft Washingtin Monument to hit the ground. h=16tsquared + 64t?      Log On


   

Question 428731: Hey
My math question is
How many seconds will it take for an object dropped off the top of 555 ft Washingtin Monument to hit the ground. h=16tsquared + 64t?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
How many seconds will it take for an object dropped off the top of 555 ft Washingtin Monument to hit the ground. h=16tsquared - 64t?
-------
Solve -16t^2+64t+555 = 0
---
t = [-64 +- sqrt(64^2-4*-16*555)]/(2*-16)
---
t = 8.297872 seconds
==========================
Cheers,
Stan H.