Math Wizards Lair

[5Speed]

arrgggghhhhhh lemme out of here.......

I dont want to see numbers in my mind again.....

[Egan101]

Eto po yung proof ng ax^2 + bx + c = 0.

ax^2 + bx + c = 0

ax^2 + bx = -c

x^2 + bx/a = -c/a

x^2 + bx/2a + b^2/(4a^2) = -c/a + b^2/(4a^2)

(x + b/2a)^2 = -c/a + b^2/(4a^2)

(x + b/2a)^2 = (-4ac + b^2)/4a^2

+/-(x + b/2a) = sqrt(b^2 – 4ac)/2a

x = [-b +/- sqrt(b^2 – 4ac)]/2a

[city]

If a south bound electric train is traveling at a rate of 66 miles per hour and the wind is blowing to the north at 35 miles per hour, which way will the smoke blow?

[5Speed]

If a south bound electric train is traveling at a rate of 66 miles per hour and the wind is blowing to the north at 35 miles per hour, which way will the smoke blow?

no smoke since you've stated that the train is an electric train...

[city]

no smoke since you've stated that the train is an electric train...

too easy ha...try this one:

If a plane crashes on the North Carolina and Virginia border, where would the survivors be buried?

[Egan101]

You only bury dead people and not live ones.

[box_type]

too easy ha...try this one:

If a plane crashes on the North Carolina and Virginia border, where would the survivors be buried?

ang lupet mo naman brader, nakasurvive na nga sa crash gusto mo pa ilibing? hehe...gocha!

[miLes]

If a south bound electric train is traveling at a rate of 66 miles per hour and the wind is blowing to the north at 35 miles per hour, which way will the smoke blow?

none

damn, we used to solve these kind of problems on operations research:
http://www.me.utexas.edu/~jensen/ORM...piecewise.html
http://www.me.utexas.edu/~jensen/ORM...convexity.html

math geek pala kami dati haha

[miLes]

o sino kadate ni Elizabeth?

[kinyo]

Eto po yung proof ng ax^2 + bx + c = 0.

ax^2 + bx + c = 0

ax^2 + bx = -c

x^2 + bx/a = -c/a

x^2 + bx/2a + b^2/(4a^2) = -c/a + b^2/(4a^2)

(x + b/2a)^2 = -c/a + b^2/(4a^2)

(x + b/2a)^2 = (-4ac + b^2)/4a^2

+/-(x + b/2a) = sqrt(b^2 – 4ac)/2a

x = [-b +/- sqrt(b^2 – 4ac)]/2a

95 points for you