what does this mean in math?
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This symbol > means greater than, for example 4 > 2. ≤ ≥ These symbols mean 'less than or equal to' and 'greater than or equal to' and are commonly used in algebra. In computer applications <= and >= are used. ≪ ≫ These symbols are less common and mean much less than, or much greater than.
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0 (zero) is a number, and the numerical digit used to represent that number in numerals. It fulfills a central role in mathematics as the additive identity of the integers, real numbers, and many other algebraic structures.
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The set of real numbers is closed under addition. If you add two real numbers, you will get another real number. There is no possibility of ever getting anything other than another real number.
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subtract(BigDecimal subtrahend, MathContext mc) returns a BigDecimal whose value is (this - subtrahend), with rounding according to the context settings. If subtrahend is zero then this, rounded if necessary, is used as the result. If this is zero then the result is subtrahend. negate(mc).
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The arithmetic mean, denoted x, of a set of n numbers x1, x2, …, xn is defined as the sum of the numbers divided by n: The arithmetic mean (usually synonymous with average) represents a point about which the numbers balance.
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It means the Intersection of a set. For example, IF you have a set of even numbers and a set of odd numbers, the Union 'U' of these two sets would be ALL numbers. But, the Intersection (upside down U) would mean that NONE of the numbers in Evens are in common with any of the Odds in the second set.
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On the other hand, the notation a ≠ b means that a is not equal to b, and is sometimes considered a form of strict inequality. It does not say that one is greater than the other, or even that they can be compared in size.
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If multiplication tells you how many times to add a certain number, then multiplying by 0 means that you have nothing to add because 0 means nothing. So, 3 * 0 means that you are adding 3 zero, or no, times. ... You get 0 because you're still not adding anything. Nothing added to nothing is still nothing.
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It means 80 percent of your outcomes come from 20 percent of your inputs. Its called the Pareto Principle which is trying to say: Give due emphasis to the amount that will give you the most yield. In studying then, study those components more heavily. Don't let your brain guilt you into studying everything equally.
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Algebra - Basic Definitions A number on its own is called a Constant. A Coefficient is a number used to multiply a variable (4x means 4 times x, so 4 is a coefficient) Variables on their own (without a number next to them) actually have a coefficient of 1 (x is really 1x)
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The expressions in which the numbers, or variables, or both, are connected by operational signs (+, - etc.) are called algebraic expressions. For example 5, 4x, a+b, x−y etc.
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A mathematical sentence makes a statement about two expressions. ... A mathematical sentence can also use symbols or words like equals, greater than, or less than. An open sentence in math means that it uses variables, meaning that it is not known whether or not the mathematical sentence is true or false.
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The set of real numbers is closed under multiplication. If you multiply two real numbers, you will get another real number. There is no possibility of ever getting anything other than another real number.
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An expression in mathematics which does not have meaning and so which is not assigned an interpretation. For example, division by zero is undefined in the field of real numbers. SEE ALSO: Ambiguous, Complex Infinity, Directed Infinity, Division by Zero, Ill-Defined, Indeterminate, Well-Defined.
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Factorial. Factorial says to multiply all whole numbers from the chosen number down to 1. The symbol is "!"
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It just means you pay X twice. For example, if you want to mill someone for 5, you'd have to pay 10 for the ability (5 x 2 = 10).
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1 times table. When multiplying by 1, the answer is the same as the number you are multiplying it by. It just means you have 1 of that number.