Monday

April 21, 2014

April 21, 2014

Posted by **Mary18** on Saturday, April 14, 2012 at 7:27pm.

A football player punts a ball. The path of the ball can be modeled by the equation y = -0.004x^2 + x +2.5, where x is the horizontal distance, in feet, the ball travels and y is the height in feet, of the ball. How far from the football player will the ball land? Round to the nearest tenth of a foot.

- math -
**Reiny**, Saturday, April 14, 2012 at 8:52pmHere is a graph showing the path of the ball

http://www.wolframalpha.com/input/?i=0%3D+-0.004x%5E2+%2B+x+%2B2.5

So the x-intercept would be the distance covered

so -0.004x^2 + x +2.5 = 0

use the quadratice equation were

a = -.004, b = 1, and c = 2.5

x = (-1 ± √1.04)/-.008

= appr. 252.8 or a negative

**Related Questions**

socials - can u please explain the methaphor "slow dawns are caught in great ...

Algebra 1 - I need some help please. I dont understand the math that we are ...

MATH - How many positive integers in the set {50, 51,, . . . , 298, 299} do not ...

math - Please explain in detail how to solve this problem: h = -16t^2 + 156t + ...

Civics - Describe the differences between the House of Representatives and the ...

Chemistry - How many calories are required at 0 degrees Celsius to melt an ice ...

chemistry - hey guys please help me answer these questions. 1. can a strong acid...

Algebra (Does any one understand special factors)? - I do not understand special...

chemistry - Hey guys please help me answer these chemistry questions.? 1. can a ...

Chemistry 10 - The accelerator pedal in the car is pressed, resulting in a ...