How are three ways negative numbers are used in real life?
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Golf (good scores can be negative)\n\nJeopardy\n\nThe stock market
935481
you switch the inequality sign when you divide by a negative number.
843943
4, 0, -2, -2, 0\n\nFigure it out! Don't be lazy!
110586
Multiplication/Division\n+ and + give you a positive answer.\n- and - give you a positive answer.\n+ and - give you a negative answer.\nIf you have an odd number of negative signs your answer will be negative.\nAddition/Subtraction (subtraction is just adding a negative)\n+ and -, the sign will be the sign of the integer with the larger absolute value.  (ex. -4 + 6 = 2, since 6 is bigger than 4 we give the answer a positive sign).\n+ and +, answer will be positive.\n- and -, answer will be negative.\nIt also helps to think about a number line.  Mentally place your first number on the number line; adding a + number moves right and adding a - number moves left on the line.\nHope this helps :-)
726208
I think the easiest way to know whether or not you add is by picturing a number line that is negative on the left and positive on the right with zero in the middle.\nif you subtract, then you move left\nif you add, then you move right.\n\n\n\nMemorize this!\n+ + makes +\n+ - makes -\n- + makes -\n- - makes +\n\nexample:\n1+(+2)=1+2\n1+(-2)=1-2\n1-(+2)=1-2\n1-(-2)=1+2\n\nanother example:\n(-1) + (+2) = (-1) + 2 = 2 - 1\n(-1) + (-2) = (-1) - 2 = -(1+2)\n(-1) - (+2) = (-1) - 2 = -(1+2)\n(-1) - (-2) = (-1) + 2 = 2 - 1\n\ntry these, and we'll tell you if you got it\n4 - (-5) =____\n6 - 7 = _____\n-9 - 8 = ______\n-3 - (-5) = _______
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That's an interesting question. But the answer may seem a bit weird at first. I suggest you read the answer carefully.\n\nThe world has invented the number system. \nIn olden days, the arabians and egyptians used numbers from 1 to 9. But the theory of negative numbers came only after a brilliant Indian Mathematician ARYABHATTA devised the number zero as the king of all numbers. Zero is undoutedly the most important and the backbone of maths and the number system.\nThe number system was extended on both sides of zero around the 1800s to 1900s to form nearly more than 100 numbers on each side. With time, the number system has advanced and now we know that its limitless.\nEverything that is made around us has many helping hands. Always remember that my friend. Keeping asking such provoking questions. They will shape you into a good character.
302002
Basic subtraction. Ok, you are taking stuff away from what you have, so...\n\n(-3)-3 you have -3 take away three, counting down that is -6. Or you can think of it as the two -s forming a +. \n\n Ok if you have the problem...(-5)-(+3)= change the subtraction sign to + and the 3 to the oppisite in this case -3\n\nExaples\n1. (-8)-+3=   -8+-3 now it is a adding problem = -11
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adding a negative number will lower the value.\n10+(-20)= -10\nit's the same as pretending the addition sign isn't there\n10-20= -10\nknowing this, you can solve your equation\n\n5x+10+(-20)\n= 5x+(-10)\nadd ten to each side\n10 = 5x\ndivide each side by 5\n10/5 = x\nx = 2\n\nHope I helped : )
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The problem with negative numbers is that they don't actually exist.  We talk about negative values but it's technically impossible to have a negative amount of anything.\n\nI've found the easiest way to make students understand negatives is to talk about what happens when you owe a certain amount.\n\nFor instance, if I have four apples and you want to get five apples from me, I can give you four but then I have no more.  Therefore, I will owe you one apple.  This apple - which I do not have but which I owe you - is like a negative number.\n\nWhen all else fails, go for the number line.  Numbers extend on to infinity in BOTH directions, from zero and up, and down as well.  If your eight year old can understand infinity, negatives shouldn't be too hard.\n\nNegative numbers, by the way, are generally sixth-grade material.  Don't be frustrated if your child doesn't understand yet!  Some things will take time.
787514
when you say "negative" what that means is the opposite sign of the number. For example, the negative of -6 = 6 and the negative of 4.5= -4.5\n\nwhen you say Inverse correlation, you're talking about a relationship where you simply flip the fraction. for example... 3/4 becomes 4/3, and 5 becomes 1/5.
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The first one is (-5, 3). I don't remember how to do the others.
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Mathematicians have designated a special number 'i' which is equal to the square root of minus 1. Then, it follows that i2 = -1. To determine the square root of a negative number (-16 for example), take the square root of the absolute value of the number (square root of 16 = 4) and then multiply it by 'i'. So, the square root of -16 is 4i.\nAs a double check, we can square 4i (4*4 = 16 and i*i =-1), producing -16.\nAll negative square roots are called "imaginary numbers" (now you know where that letter 'i' comes from).
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Integers are all of the natural numbers.Are you asking about negative and positive integers and why are the signs changed at times?\nIf that is the case,you cannot subtract a negative from a negative because you get a positve.It is counter-intuitve but if you think about it,it makes sense.\nFor instance a -6--6=what?It all depends upon where the signs are placed and if it a parenthetical(if it has parentheses) expression.\nDo you see how that problem can have a number of solutions,depending upon how it is expressed(set up)?\nThe answer is concievably a -12 or it can be zero.\nYou must first understand that the answer may not be evident.\nThere is no easier way to deal with it.You must understand it in your mind:it is strictly an intellect thing.\nIt really is a mind game in ways,but it is a good one.You can do it,it's fun in ways.It teaches you to think and to widen the mind.\nThere is a method to the madness however and once you get that straightend out in your mind,you will feel like a genius.\nIt always works the same and it never works differently:all you have to do is look for the sense of it and ask questions.\nIn the example that I gave,a negative six subtracted from a negative six is a negtive 12.However a double like sign with a negative number cancels itself out and becomes positive.The answer is zero,because there are no parentheses.
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-7 and -sqrt49\n\nYou can not take a square root of a negative number. Well, you can, but it's called an imaginary number because it can't actually exist.
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The square root of -1 cannot be a real number, because there's no number which, when multiplied by itself, gives -1.  So the square root of any negative number cannot be a real number, because for any number -n, it is equal to -1 x n.  You can take the square root of the positive n, but not the -1.  We call the square root of negative one by the letter "i", standing for "imaginary".  The square root of -16 would be +/-4i.  Zero is a real number, because it denotes the number of things when there aren't any, and it is a placeholder for the origin of a real line.  Negative numbers are also real numbers, as used on a number line, or as a measure of the balance in your bank account if you go into your line of credit.
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first of all, you need to know that there are basically two types of numbers. Real and imaginary. \nreal numbers are those which can be represented in one form or another, but they exist in real world. for example, if you say that there are 4 trees, that means that you can count the number of trees to be a distinct value, ie., 4.\nor consider this. the probability of an event happening is 0.58. this means that the event will be successful 58 times if it is performed 100 times. \nreal numbers consist of all the rational, irrational numbers. that means all these can be realised to be present.\n\nnow coming to imaginary numbers, these are not actually present. \nconsider a number like sqrt(-1). we all know that a square root of a negative number doesnt exist. so, we just say that sqrt(-1) doesnt exist. such numbers can be conveniently represented as Imaginary Numbers. these numbers donot mean anything in the real world, but help in our mathematical calculations.\nnow, hope this answers your question....
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I'll show you a slightly different way.\nI am assuming you know basic algebra.\n\nSee,       5b < -10\n      5b + 10 < -10 + 10    ( by adding 10 both sides )\n     5b + 10  < 0\n    5*( b + 2 ) < 0         ( Factorize out 5 )   \n\nNow, just think for a second. The two numbers "5" and \n"(b +2) " when multiplied, we require a negative ( i.e < 0 )\nresult. Since 5 is positive, we must have that ( b + 2 ) must be negative. Why? because by convention only a positive number multiplied by a negative number yields a negative number and vice versa.\n\nThus, ( b + 2 ) negative means that \n      b + 2 < 0  \n   b + 2 -2 < 0 - 2   ( by substracting 2 both sides )\n          b < -2