on 2010 district 2 test:
What is the difference between positive integral divisors and proper divisors?
20. sqrt of 359 x sqrt of 445 =
Is there a trick on this problem or must you estimate?
29. 2583677k is divisible by 11. Find k>0
on 2010 region test:
21. 0.433333333... as a proper fraction.
23. sqrt of 5 divided by sqrt of 4 =
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Questions
by papergangsta » Thu Apr 29, 2010 8:31 pm
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Re: Questions
by 88bobcat » Fri Apr 30, 2010 10:55 am
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Re: Questions
by 88bobcat » Fri Apr 30, 2010 11:17 am
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Re: Questions
by Fibonacho » Fri Apr 30, 2010 1:31 pm
If you take the product of the square root of two numbers such as sq rt 355 x sq rt 445,
you could just take the average of the two. (355 + 445)/2 = 400 Not bad for an approximation.
If the two numbers are close together, there is NOT much difference in geometric mean and arithmetic mean.
Maybe thats what LW had in mind since there seem to be many GM questions this year as well as GP problems.
you could just take the average of the two. (355 + 445)/2 = 400 Not bad for an approximation.
If the two numbers are close together, there is NOT much difference in geometric mean and arithmetic mean.
Maybe thats what LW had in mind since there seem to be many GM questions this year as well as GP problems.
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Re: Questions
by joshk » Fri Apr 30, 2010 6:01 pm
Big 1A
UIL District/Regional/State Score
NS--220(1st)/184(2nd)/156(3rd)
MA--188(1st)/174(1st)/214(2nd)
UIL District/Regional/State Score
NS--220(1st)/184(2nd)/156(3rd)
MA--188(1st)/174(1st)/214(2nd)
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Re: Questions
by sinkokuyou » Sat May 01, 2010 6:48 pm
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Re: Questions
by joshk » Sun May 02, 2010 2:15 am
Big 1A
UIL District/Regional/State Score
NS--220(1st)/184(2nd)/156(3rd)
MA--188(1st)/174(1st)/214(2nd)
UIL District/Regional/State Score
NS--220(1st)/184(2nd)/156(3rd)
MA--188(1st)/174(1st)/214(2nd)
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Re: Questions
by sinkokuyou » Sun May 02, 2010 9:18 am
Last edited by sinkokuyou on Mon May 03, 2010 7:11 pm, edited 1 time in total.
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Re: Questions
by theb0ss » Sun May 02, 2010 3:51 pm
i think that's supposed to be 116/495, not 166/495 :P
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