Friday

December 19, 2014

December 19, 2014

Posted by **Milly** on Monday, September 5, 2011 at 3:30pm.

- Math -
**Henry**, Wednesday, September 7, 2011 at 3:28pmWhen the ball strikes the water, the ht above water will be 0.

h = -16t^2 +32t + 180 = 0,

Solve for t using the Quadratic Formula

and get:

t = -2.5, and 4.5s.

Select the positive value t:

t = 4.5s.

**Answer this Question**

**Related Questions**

algebra - i was wondering if i did this right A cannon ball is shot from a ...

Math Ms.Sue please - 1. 2/3 - 5/4 -3 -3/12 23/12 -17/12 2. -6.1 + 1.7 7.8 -4.4 -...

Could you please check my answers. - 1) - 1.8 - 3.9 a- -2.1 b- 5.7 c- 2.1 d- -5....

Physics HELP - A ball is thrown horizontally at 15 m/s from a clifftop 60 m ...

physics - A ball is thrown horizontally at 15 m/s from a clifftop 60 m above the...

physics - A ball is thrown horizontally at 15 m/s from a clifftop 70 m above the...

pHYSICS - A ball is thrown horizontally at 15 m/s from a clifftop 70 m above the...

Physics - A ball is thrown horizontally at 15 m/s from a clifftop 70 m above the...

Math - Look at the Description below: Then answer the question. * Salt lake City...

Math - Look at the Description below: Then answer the question. * Salt lake City...