Why does -1/20ln1/2 equal 1/20ln2?
458822
There's three log rules you need to know:\n\n1) ln a + ln b = ln (ab)\n\n2) ln a - ln b = ln (a/b)\n\n3) ln a^b = b×ln a\n   where "^" means "to the power of"\n\nWe can do this using the second rule backwards:\n\nln (1/2) = ln 1 - ln 2\n\nand ln 1 is zero.\n\nOr we can do it using the third rule\n[remembering that 2^(-1) = 1/2].  \nHence:\n\nln (1/2) = ln (2^-1) = -1×ln 2\n\nHope that helps!
2056
You are trying to get the smallest number on top (numerator) and bottom (denominator). You divide the numerator and denominator by the same number.\n\nFor example, 180/240 can be simplified by dividing the numerator and denominator by 10 to get 18/24. Next you can divide the numerator and denominator by 6. 18 divided by 6 is 3, and 24 divided by 6 is 4 to get a simplified fraction of 3/4. \n\nThe trick is knowing which numbers divide the numerator and denominator evenly.
559200
By order of precedence of operations:\n\ny = 2^1/2  is the same as\ny = (2^1)/2  which is just\ny = 2/2 which yields\n\ny = 1 <<<<<<<<<<<<<<<<<<<<<<
733865
its between negative one and 0
209416
Your question (.64 2/3=97/120, 97/130, 98/130, 99/14) doesn't make sense. You'll have to restate your question more clearly than that to expect to obtain an answer!
822707
Actually you are right.\n\n2 times y, limit y->0  = 2.y\n\nSo it is twice of the original.\n\nBut the "value" of 2.y is still 0. \n\nActually let me explain the significance of this, (which is the basis of calculus). Suppose somebody asks you what is 0/0, then you cannot answer, because there is no answer. \n\nBut if the same person asks what is y/y, where y is close to 0. (This is denoted by y->0) , you will obviously say the answer is 1.\nThat is why, this kind of analysis is important.
526884
Another one: 200(1+N/20)
51150
UGH!!!  Thx for the effort (I was the one to post that question, as a part of a solution to another problem I found here on Yahoo! Answers.)  Incidentally, I made a mistake when simplifying the other problem and it should be xln(2)-2ln(x)-ln(86400) = 0\n\nI don't know any way to get rid of the ln(x) unless maybe it's using calculus techniques?  I'm just glad this problem is making other ppl trouble about it as much as I did :-).
574441
I get\n10.10110111111...\n\nThe question is essentially asking for the value of e in binary. This is no the same as log_2(e). The answer should only have 0 and 1's.
874851
2Al (s) + N2(g) ----> 2AlN (s)
949593
Divide both sides by sin 20 to obtain n2.\n\nn2 = 1.0009 sin 30 / sin 20
647999
21, 4^0 = 1, not 0\n\n0.32, 0.32, 1/3
127821
"Dividing by nothing" doesn't mean you would do nothing.  It means, "how many piles of nothing (zero) would you have to add up to get to the original number?".  \n\nHow many piles of zero would you have to have in order to have 2?  The answer isn't even infinity, because you would still never have 2.  So it's not possible, and 2/0 can't be represented by any number.
931316
(-0.242+2.18-1.94)*10^-18\n=(-0.002)*10^-18
843943
4, 0, -2, -2, 0\n\nFigure it out! Don't be lazy!
843645
2% divided by 100% (2% / 100%)\n\nthe % signs cancel out because they are found on both the demoninator and the numerator, so you get:\n\n2 divided by 100 (2 / 100)\n\nwhich equals 0.02, not 2%, not 0.02%
975361
d=nt2/p\npd=2nt\np=2nt/d