Arithmatic mean Is in the Book of Mathametics. what is the formula of it?
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I think you're talking about "average," so you add up the numbers and divide by how many numbers you've added.\n\nthe average of 5, 6, and 7\nis 5+6+7 divided by 3\nso it's 18/3 = 6\n\nhope that helps, sorry if I'm way off
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Exponential notaions is a form like 5000 = 5 x 10^3 and 0.05 = 5 x 10^-2 and 0.0500 = 5.00 x 10^-2.  Also called scientific notation.\n\nhttp://web.uccs.edu/slc/modules/chem103/exponents.htm\n\nhttp://lrc-srvr.mps.ohio-state.edu/under/chemed/qbank/1/1-5/index.htm
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order of operations is important but it's impossible to know what exactly do you mean when you write words instead of math symbols, so I would guess that you mean this\n1+1/1-1*1/1=\n\n1+1-1=\n\n1+0=\n\n1
149188
ok, i think one will be where you have to solve a word problem dealing with alegebra. One with number sentences that have a letter on one side of the problem and letters on both sides of the problem. i could be wrong, but i'm trying to help.
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If it reads 5x^4, it means 5 * x^4. If it read (5x)^4, then it would mean 5x * 5x * 5x * 5x.
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The mean is simply the average of the data.  Add them all up and divide by 15.\n\n69.54
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Just do a search for "algebra." You'll find a lot of web sites, including:\nhttp://mathworld.wolfram.com/topics/Algebra.html\nhttp://www.purplemath.com/\nhttp://www.algebrahelp.com/
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Try \n1. http://en.wikipedia.org/wiki/Eccentricity_%28mathematics%29\n\n2. http://mathworld.wolfram.com/Eccentricity.html
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algebra in vry simple word mean addition and subtraction n all sort of calculation can be done using these basic method.\n\nman  first learn to count which is just addition .\nso he learnt algebra first.  hence algebra came before geometry
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8100.\n\nIt's scientific notation =)
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hope this helps\n\nhttp://www.thea.nesinc.com/ptmath.htm
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hotmath.com.. thats what i use when i need help fom specific math books... but i think they just offer help... but i think you have to pay.. sorry\n\n-shamar
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Some potentially useful vocabulary:\n\nThe answer of an addition is called a sum.\nThe answer of a subtraction is called a difference.\nThe answer of a multiplication is called a product.\nThe answer of a division is called a quotient.\n\nNow, the specific question you are asking... the format of the answer will depend on what it is you have learned. It could be:\n\nb [division symbol] 7\nb[division symbol]7 = ____\nb/7\nb/7=___\n\nor something else! Check your textbook/notes.
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Exponents are often written following a "^" symbol:\n\n(6x^2)(2x^3)\n\n=12x^5
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4.2\n\nfor a binomial distribution the mean is the number * the probability
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Scientific Notation is just a way of expressing VERY small numbers or VERY large numbers so we don't have to perform or write equations and figures like 187,000,000,000,000,000,000,000,000 x 4,500.\nInstead, it's much simpler to write:\n(1.87 x 10 to the 26th power)(4.5 x 10 to the third power)
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Harmonic mean is the reciprocal of the mean of the reciprocals.\n\nLet the two number be a and b. The arithmetic mean of a and b is (a+b)/2 = 6, so a+b = 12. The harmonic mean of a and b is 2/(1/a+1/b) = 2ab/(a+b) = 9/2, so ab = 27. The sum of two numbers is 12 and the product is 27, so the two numbers are roots of x^2-12x+27 = 0, which can be factored into (x-3)(x-9) = 0. Therefore, the two numbers are 3 and 9.