Posted by **Please help me.** on Thursday, March 7, 2013 at 6:23pm.

A ball is thrown upward with an initial velocity of 35 meters per second from a cliff that is 80 meters high. The height of the ball is given by the quadratic equation h = -49t^2 + 35t + 140 where h is in meters and t is the time in seconds since the ball was thrown. Find the time that the ball will be 60 meters from the ground. Round your answer to the nearest tenth of a second.

PS: I know the answer is 9.0 seconds because it is a test question I got wrong, I need steps if anyone can help:)

## Answer This Question

## Related Questions

- Algebra 1 - A ball is thrown upward with an initial velocity of 35 meters per ...
- algebra - A ball is thrown upward with an initial velocity of 14 meters per ...
- Algebra - A ball is thrown upward with an initial velocity of 14 meters per ...
- Math - The height(h) of an object that has been dropped or thrown in the air is...
- Math - The height(H) of an object that has been dropped or thrown in the air is ...
- Algebra - A ball is thrown from an initial height of 2 meters with an initial ...
- Math Help (URGENT X10) - This is really urgent so please please please help. The...
- College algebra - When a ball is thrown up into the air, it makes the shape of a...
- Math - The equation y=-4.9t^2+3.5t+5 describes the height (in meters) of a ball ...
- Precalculus - For this problem, we will use the formula for position of an ...

More Related Questions