I need 3 examples of positive and negative numbers being used in the real world?
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I just got $15.00 in the mail for doing a survery. (positive)\nI spent some on pictures at WalMart (-$7.00).\nI now have $8.00. (positive)\nThe temperature is 76F today. (positive)\nMy freezer keeps things below freezing (-10 Celsius)\nI'm glad I don't owe more than $100 on my credit card (-$100).
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1) Natural Numbers are numbers that you count.  They are 1,2,3,4,5,6,7 and so on and so forth starting with one.\n2) Whole numbers are numbers that have no decimals.  They are like -1,0,1,2,3,4,5 and so on towards positive and negative infinty.\n3) Integers are the same as whole numbers.\n4) Rational numbers are numbers that can be expressed in a fraction.  Like 21/7ths.\n5) Irrational numbers are numbers that cannot be expressed in a fraction.  Like the square root of 6.5.\n6) Decimals are pieces of a number like .12 dogs or .75 cups of water.\n7) Repeating decimals are decimals the repeat forever.  Such as 1/3 is .3333333 repeating.\n8)  Terminating decimals do not repeat forever.\n9) Solution sets are sets that solve a problem.\n10) Finite sets are sets that have a final answer.\n11) Infinite sets go on forever.\n12) Empty or null set is a problem with no answer.  It looks like a circle with a line through it.\n13) Domain is what x values the function passes through.\n14) An open sentence is a sentence the doesn't end.\n15) An equation is two things connected by a equals sign.  Such as 4x+y=13-7a\n16) Inequalites are two things connected by a greater then or less then sign.  15>2.\n17) Addition is adding numbers 4+5=9.\n18) Multiplication is timesing numbers like 4x5=20.\n19) Polynomials are numbers with more then one term.  Like 4x+5+6y
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When you add a positive number and a negative number, you actually subtract the two numbers, then choose the sign of the larger number for your answer.\n\nWhen you subtract a negative number from a positive number, the negative number becomes positive and you add the 2 numbers.\n\nWhen you subtract a positive number from a negative number, it becomes negative and you add the 2 numbers.
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Yes, negative x positive always equals negative.  \n        negative x negative always equals negative\n        positive x positive always equals positive
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1.   The Zone Improvement Plan, otherwise known as ZIP code.\n2.   Telephone area codes.\n3.   Roman Numerals.\n4.   The Fibonacci sequence\n5.   Natural numbers: the positive (or if you prefer, non-negative) integers {1, 2, …}\n6.   Negative numbers,also known as integers\n7.   Rational numbers (fractions)\n8.   Irrational numbers (for example, the square root of 2)\n9.   Real numbers, which encompass both rational and irrational numbers.\n10.  Imaginary numbers, or complex numbers (such as the square root of -1 which is represented by the letter i).
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x-coordinate: Count the horizontal distance from the origin (0,0).  If the point is to the right, then the number is positive.  It the point is to the left, then is is negative.\n\ny-coordinate: Count the vertical distance from the origin (0,0).  If the point is to above, then the number is positive.  It the point is to below, then is is negative.\n\nThen list them as an ordered pair (x,y)
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Real numbers are what we use every day. They include all numbers other than immaginary numbers, which are the result of the sqare root of a negative number. The main disadvantage of the real number system is that almost all real number can only be approximated using the decimal system. Pi for example can only be approximated. 1/3 writen in decimal form can only be approximated as .333333333....
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a. having both positive and negative end
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3 and 2; 1 and 6; 1.5 and -1.5; 0 and -1; 6 and 2; 8 and -9.
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Iterate the process of  summing up the squares of the digits of a number. If the process  terminates in 1 then the original number is called a  happy number. Otherwise the number is called unhappy. Examples:\n7 -> 49 -> 97 -> 130 -> 10 -> 1,  therefore 7 is a happy number.\n4 -> 16 -> 37 -> 58 -> 89 -> 145 -> 42 -> 20 -> 4, therefore 4 is a unhappy number.\n\nBecause the sum of the squares of the digits of a number is less than the number for all numbers ≥ 1000 it can be easily proven that all unhappy numbers reach the above listed cycle starting with 4. The first happy numbers are (Sloane's A007770)\nhttp://www.research.att.com/~njas/sequences/A007770\n\n1, 7, 10, 13, 19, 23, 28, 31, 32, 44, 49, 68, 70, 79, 82, 86, 91, 94, 97, 100
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The natural numbers are the counting numbers, 1, 2, 3, ...\nMultiplication is defined there as repeated addition. That is, 3 x 4 = 3 + 3 + 3 + 3.\n\nNegative numbers are invented by mathematicians so they can solve problems that you can write using the natural numbers but don't have a solution in the natural numbers like\nx + 5 = 4.\n\nWhen you extend the definition of multiplication to cover the negative numbers, the only way to do it and have it remain consistent with the rest of arithmetic is for the product of two negative numbers to be positive.\n\nIn brief, it's the only way to do it without breaking the rest of your arithmetic.
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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
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let me solve ur example first, then i will explain it to u.\n-5-(-15)\n-5+15\n10 is the answer. \n\nIf there r two negative together, make it positive.\nUse the following formula:\n- -= +\n- += -\n+ += +\n+ -= -
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1. If a is a real number, n is a positive integer, and a^(1/n) is a real number, then (a^(1/n))^m = a^(m/n)\n\n2. If a is a, b are real numbers, n is a positive integer, and a^(1/n), b^(1/n) are real numbers, then \n(a^(1/n))*(b^(1/n)) = (a*b)^(1/n)\n\nand a^(1/n)) / (b^(1/n)) = (a/b)^(1/n)\n\nand (a^(1/n))^(1/m) = (a)^(1/mn)\n\n3. If a is a real number (a^2)^(1/2) = IaI
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Try Google or Yahoo.  You'll find worked examples there.  I think it needs diagrams to understand; they and the accompanying explanations are too complex to attempt to reproduce here.
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1) 180 degrees\n2) 34678900\n3) 10^10\n4) 4.026 * 10^6\n5) 702600
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in reality - null\nin math it allows us to put a placeholder between positive and negative numbers. It also allows a higher understanding of how math really works.