Posted by **Jessie** on Sunday, May 15, 2011 at 5:33pm.

A launched rocket has an altitude in meters, given by the polynomial h+vt-4.9^2, h is the height in meters v is the velocity in meters per second and t is the number of seconds for which it takes the rocket to become airborne. If the rocket is launched from the top of a tower that is 100 meters and the initial speed is 60 meters per second, what will its height be after seconds rounded to the nearest tenth?

- Algebra -
**drwls**, Sunday, May 15, 2011 at 5:45pm
I suggest you start by learning to spell the subject.

Then take the time to type your equations correctly. It is much more likely to be

h = ho + vo*t - 4.9 t^2. You left out t^2 term in any case.

ho is the initial height, 100 m.

vo is the initial speed, 60 m/s

Finally, in your question:

"what will its height be after ___ seconds rounded to the nearest tenth?"

you failed to say how many seconds.

- Algbrah -
**Jessie**, Sunday, May 15, 2011 at 6:41pm
A launched rocket has an altitude in meters, given by the polynomial h+vt-4.9^2, h is the height in meters v is the velocity in meters per second and t is the number of seconds for which it takes the rocket to become airborne. If the rocket is launched from the top of a tower that is 100 meters and the initial speed is 60 meters per second, what will its height be after 4 seconds rounded to the nearest tenth?

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