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Old 11-08-2009, 07:39 PM   #511
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that's what i thought, but apparently it isn't. i don't know what to think anymore.
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Old 11-08-2009, 07:39 PM   #512
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the one with average rate (somewith 48)

btw i had the abxz question and my exp was writing.
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Old 11-08-2009, 07:44 PM   #513
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huh. could've sworn that was in the 20-minute. do you remember that question, ironman? no one else seems to.
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Old 11-08-2009, 07:46 PM   #514
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The abxz wasn't in the 20 minute section, the x^3-y^3 was, I think.
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Old 11-08-2009, 07:46 PM   #515
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@ sat1prep

are u serious?!?!?!?!
COME ON I WORKED HARD FOR MATH THIS TIME AND I SCREWED UP SOMETHING THAT INVOLVED CANCELING VARIABLES!!!!

(c-a)-z>c-(a-z)
= c-a-z > c+a+z
=-z>z

stupid of me to not cancel

i tried to estimate using the graph. I hate myself. hope i can still get the 800...
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Old 11-08-2009, 07:52 PM   #516
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Anyone remember the equations that actually went with each roman numeral? I know the one ironman posted was one of the true choices, and there was one other one. Can someone post the equations and the roman numerals they went with?
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Old 11-08-2009, 08:01 PM   #517
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The question about finding "u" with the square slanted 30 degrees.... What was the exact question??? becuase there was no circle around the square....there was just the x-y cordinate plane.
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Old 11-08-2009, 08:02 PM   #518
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i got 2.5 becuase each side of the square was 5 making the hypotnuse 5 of the 30 60 90 tri
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Old 11-08-2009, 08:06 PM   #519
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Bpop: A circle is inscribed in a square and the circle's radius is 5. The square's side is therefore 10. Since it forms the hypotenuse of the 30-60-90 triangle u is 5.
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Old 11-08-2009, 08:13 PM   #520
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i seriously didnt see any circle in it...lol
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Old 11-08-2009, 08:19 PM   #521
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wow...i am ****ed!!! this is ridiculous i knew how to do it but SOMEHOW didnt see the stupid circle...its frustrating
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Old 11-08-2009, 08:29 PM   #522
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Does anybody remember the exact wording of the question about a+b+c+f and all the averages?
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Old 11-08-2009, 08:33 PM   #523
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I don't remember the exact wording. What do you need it for?
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Old 11-08-2009, 08:34 PM   #524
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Because I'm worried I misread it haha

I'm trying to remember what I put and what some of the other choices were...do you remember the general idea?
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Old 11-08-2009, 08:36 PM   #525
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The question was something like: "The average of two numbers A and B is 20. What is the average of numbers C and F if A+B+C+F is 10?"

The choices were like 0, 5, 10, 20.
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