Tuesday

September 16, 2014

September 16, 2014

Posted by **nicole** on Monday, November 19, 2012 at 5:41pm.

- Intermediate Algebra -
**Reiny**, Monday, November 19, 2012 at 5:56pmwhen it hits the ground, h = 0

-16t^2 + 70t + 50 = 0

8t^2 - 35t - 25 = 0

(t-5)(8t + 5) = 0

t = 5 or t = -5/8, but t can't be negative

so it will hit the ground in 5 seconds.

**Answer this Question**

**Related Questions**

Algebra: Quadratic Functions - A model rocket is launched with an initial ...

Math - A model rocket is launched with an initial velocity of 164ft/sec. It's ...

Math - A model rocket is launched with an initial velocity of 212ft/sec. It's ...

Math - Two kids are building a rocket for science class. once the rocket is ...

Math/calculus - a toy rocket is shot into the air at the top of a building so ...

Algebra - Use the formula h= -16t^2+250t to model the height 'h' in feet of a ...

algebra - The question I have is to solve the problem. A model rocket is ...

calculus - the height in feet of a rocket from ground level is given by the ...

Math - A rocket is launched upward and then falls to the ground. The height of ...

college algebra - A model rocket is launches upward with an initial velocity of ...