Can anyone please tell me the answer for this math problem?
354552
We have y=z+2x-3, so y'=z'+2,\nand y''=z''. Plug in to get\n\nz''+4(z'+2)+4(z+2x-3)=8x-4.\n\nThus z''+4z'+4z=0. This is (F).\n\nOnce you find the general form for the solution of this,\nput y=z+2x-3 to get the general form for y.\n\nFor 3), you want y(0)=3 and y'(0)=0. This will determine the constants in your general formula.
191567
Please use parentheses to explain the problem more effectively. Assuming the problem as,\n\n(x-1)/2x + x/(x+3)\n\nThe solution can be,\n\n(3x^2+2x-3)/(2x^2+6)
395828
haha, but this does not work. you cannot mathematically divide by (a-b) because this quantity is equal to 0. (1-1)=0. Dividing by zero yields an indeterminate answer.
782446
x:-    0** 2** 4\ny:-  -4** 0** 4\n\ni hope that this helps
380004
I don't understand.  Can you explain the problem a little better?
832646
I'm sorry, but how could you not know this?\nThis is basic elementary math and if you don't know how to round you are in trouble.\nIt's 0.1 by the way
1118957
The first number has to be (x+6) and the second number is (x).  There are four possible combinations: 6,0 (60); 7,1 (71); 8,2 (82); 9,3 (93).  60 plus 8 (68) does not equal 06, or 6.  71 plus 8 does not equal 17.  82 plus 8 does not equal 28.  93 plus 8 does not equal 39.\nUnfortunately, this problem is impossible.\nSorry I couldn't be of more help.
842934
Ok, first you must get the -8 and the x/-2 out of parentheses, so u just multiply them both by one. So then is -8 * x / -2. First, you do -8 * x, which is -8x. The problem then becomes -8x / 2. In this step, just don't mind the negative or the x and just put them back in at the end. So you're really just doing 8 / 2, which is 4. You must put the - and the x back in, so the answer is -4x. Ta Da!
247689
Use analytical trig (hint: sin function).  That should give you the answer you are looking for.
296877
It has a solution, indeed. It actually has two solutions, -3 and 7. To find it out, set each pair of nomials, (e.g. (x + 3)) to zero. So it would be (x+3)=0. Then solve for x. Do the same for the other nomial, and there you have it.
921331
First, find your final value.  This is what your expression equals.  \n\nSo, you can see that the problem states that there are 17 ducks left.  Good start.  We can begin with:\n??? = 17\n\nNow, we tackle each part of the problem.  We see that we started with 28 ducks.  After that, 16 ducks fly in, so we need to incorporate 28 + 16.  So now we have:\n28 + 16 ??? = 17\n\nNow, we need to see what is being asked.  It is being asked how many ducks left.  Since ducks flying in would be addition, then ducks flying out would be subtraction.  We are being asked how many ducks flew out, so this is our unknown (we'll call it x).  Now we can write it as:\n28 + 16 - x = 17\n\nTo find the answer, you solve for x by getting it by itself on the equal sign.  Add 28 and 16 to get 44:\n44 - x = 17\n\nAdd x to each side and subtract 17 from each side:\n44 - 17 - x + x = 17 - 17 + x\n27 = x\n\nSo, 27 ducks flew out.\n\nNote that I added x to both sides above.  This is normally unnecessary, but I didn't know how far along you were.  For future reference, you may want to consider this step:\n44 - x = 17\n\nSubtract 44 from each side:\n44 - 44 - x = 17 - 44\n-x = -27\n\nMultiply each side by -1:\n(-x)(-1) = (-27)(-1)\nx = 27
886428
____________________________________________________\n| \nBecause the bottom number is the same- X, so u add the top number-1+2, and u get 3. let me show you-- 1/x+2/x=3/x\nArent i right???!!!!!!!!!!
919015
(8X^6/7) * (56/24)\n8X^6/3\n\n(Hint:  X^m/X^n = X^(m-n)
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.
622612
Joel, you need some help.  This is one of the easiest questions I have ever heard!  You should know this, man!  You're gonna fail your test if you keep cheating on here and don't actually figure out how it works.  Good luck, brotha'\n\nL = -2 or L(x) = -2
858552
Have you tried these?  Surely you've been told that division by 0 isn't possible, so there's your answer for 7.  I'm not doing any others on Yahoo answers (too many at once), but if you really need help and are willing to do as much as possible for yourself I'll help you if you email h_chalker@yahoo.com.au, but nasty Maths teachers like me won't just hand you 7 answers on a plate!
522619
1 1 1 2\n1 1 2 1\n1 2 1 1\n2 1 1 1\n\nNo other case is possible, So n(A)=4\n\n\n1 1 1 3\n1 1 3 1\n1 3 1 1\n3 1 1 1\n\n1 1 2 2\n1 2 1 2\n1 2 2 1\n\n2 1 1 2\n2 1 2 1\n2 2 1 1\n\nNo other possibility\nn(B)=10