How does this math work?
98354
it is an improperly formed equation. the clerk may have the $2 but it is relative to the house not the friends.\n\n3x9=27 which is the price paid. the $2 the clerk has is stolen from the till not the friends. so 27+3=30 the 3 being the amount of the refund. so the proper formula is: 3x9+3=25+3+2\n3 friends times $9 + the $3 refund is equal to the price of the beer $25 plus the $3 refund plus the $2 the clerk has.
189782
It's a calculation called the r value.  The link below shows how to calculate it.  If you take a college level statistics class you'll learn how to do it with a good calculator.
487526
Sounds like a Math/Science type question to me. Why are you posting it here?\n\nBesides, I have the the slightest idea.
559152
are u sure its not supposed to be the other way around. Cuz that would make a little more sense.\n\nBut if not, then it would probably be:\n1 + ((4s squared - 11) / (s to the 4 - 3s squared -11))\n1 the quotient. the rest the remainder.
169843
You would need to perform the calculations yourself.  But, here is a useful website that will help you understand the inputs you need for making those calculations:\nhttp://pages.stern.nyu.edu/~adamodar/
185700
It's bringing the √2 out from the brackets. \n\nMultiply 1+(3/2) by 2... what do you get? 2+(3)\nMultiply 1+(√3/2) by √2.. what do you get √2+(√3)
784978
Depends on what calculator you use...some are +/- and some are just -. So it depends...Sometimes you have to push 2nd function to get it.
968857
just work backwards to find out the logic in it. That way you'll get why it works that way it did
874062
This progression is created by squaring the previous number and adding 1.\n0 squared = 0, add 1 and you get 1.\n1 squared = 1, add 1 and you set 2\n2 squared = 4, add 1 and you get 5,\nand so on.
656507
Use the law of sines\n\nn/sin(N)=m/sin(M)\n\nso \n\nm = n*sin(M)/sin(N)\n\nPlug in the values and use your calculator.
920470
The answer is:  4.47, and that's all there is to it!\n\nOk Vanessa, all you have to do is pull up your calculator (Start>Accessories).\nI am not suggesting you don't work it out in your head first: it's just basic. Check the answer on the calc, or, if you get stuck....go back.... to POWERS OF HIGH HOLY ROOTISM   SQUARE YOU KNOW, 1x1+(2x2)+2+(10-5)/1=       Simple:\n1+4+2+5/1=12
467967
this is probably not a perfect answer but this site may give you some clues.\n\nhttp://www.gomath.com/Questions/question.php?question=4751\n\naltrnatively type 'prove v*v = 2gr*r/s+v0*v0-2gr' into a search engine and see what comes up.
60599
This is not an equation.  Its garbage.  Both side of the equation have to equal each other.\n-35=.000075 this does not compute
270868
well, you just multiply top and bottom by x, like how you simply fractions.  (clearly x isn't 0 so this is legal)\n\n= lim (x->1) x(1-1/x)/(x(x-1))\n= lim (x->1) (x-1)/(x(x-1))\n= lim (x->1) 1/x \n= 1
842997
No... though some my say M+Y=L... but that's not realistic. Plus this is under math, and it should be science. Ask your friends about it. You're not going to recieve much comfort on this site with a question like that.
436776
My 1st 5 #'s are: 10,34,25,59,12 and my last # is 3.\nMy equation was *59/*10=5.9 , *25-5.9=19.1, *34-19.1=14.9 , 14.9-*12=(2.9). I figuerd since my end result was really close to my last # it would count if you rounded up. Does it?
478213
Properties of mathematics makes it work. I'm not sure exactly what it has you do but essentially it does this.\n\nIf your number is X. You add 5 to it then subtract 5 from it and you get your original number. Of course the nice ones hide the fact that your doing exactly this. \n\nDavid Copperfield did a TV bit once where he had a 3X3 square. You start out at any square you want and move according to his directions. After each move he took away a square. In the end you always end up on one square. That was cool. Anyone heard of it?