back from break, need help again
The height , h, in feet, of a bottle rocket is modeled by:
where t is the time in seconds.
A. Factor the expression.
H = -16t^2 + 60t = 4t(-4t + 15)
B. What is the height of the rocket after 2 seconds?
When t = 2
H = 4t(-4 times 2 + 15) = 28
C. What is the height of the rocket after 3.75 seconds? Explain the solution.
When t = 3.75
H = 4t(-4 times 3.75 + 15) = 0?
(when I try to calculate this I get 0 and that can't be right, I'm doing something completely wrong I think)
4 answers
Forgot to post the Modeled by part: h = -16t^2 + 60t
B. calculation error
C. zero is correct
... the rocket has to come back down at some point
C. zero is correct
... the rocket has to come back down at some point
What was the error in my calculation on B?
it's fairly obvious ... troubleshoot it ...
1 answer