SOLUTION: Hi I need some help with solving this story problem I can work it up to the end but I am not sure where to go from there, but here it is. A launced rocket has an altitude, in me

Question 333873: Hi I need some help with solving this story problem I can work it up to the end but I am not sure where to go from there, but here it is.
A launced rocket has an altitude, in meters, given by the polynomial h+xt-4.9t^2, where h is the height, in meters, from which the launch occurs, at velocity v in meters per second, and t is the number of seconds from which the rocket is airborne. If a rocket is launched from the top of a tower 60 meters high with an inital upward speed of 40 meters per second, what will its height be after 2 seconds.
I know the altitude h+vt - 4.9t^2
= 60 + vt - 4.9t^2
= 60 + 40t - 4.9t^2
= 60 + 40(2) - 4.9 (2)^2
60 + 40(2)-4.9(2)^2 = this is where I am not sure what to multiply add or subtract.
Please help me if you can and thanks :O)

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

So which means the height of the rocket is 120.4 meters at 2 seconds.
RELATED QUESTIONS
Hi, I need some help with this problem, we have to simplify the algebraic expression, I... (answered by checkley77)

graph the equation {{{ y = x - 1}}} I am not sure where to begin and end with this... (answered by Alan3354)

hi i am trying to figure out where to go with this problem ln6+ln(x-2)=ln(3x-2). it... (answered by vleith,scott8148)

I mostly need help with order of operations ....I feel confused when it comes to problems (answered by richwmiller)

hello, I would be extremely grateful for any help or advice for this problem. It has... (answered by stanbon)

Hi, My teacher gave me some make up work and I don't remember how it was done. There... (answered by richard1234)

I have an exam in just a little more than an hour. I am going over my review for the... (answered by ankor@dixie-net.com,Earlsdon)

Hi. I need some help solving this problem please. Jack can mow the baseball grounds in (answered by ewatrrr,stanbon)

I need some help solving this inequality & then graphing its solution. -6-6(5x-6)>... (answered by stanbon)