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Mathematics
Of or pertaining to the study of the measurement, properties, and relationships of quantities and sets, using numbers and symbols.
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Mathematics > Algebra 
additive identity
Mathematics; Algebra
The number zero is called the additive identity because the sum of zero and any number is that number.
absolute value
Mathematics; Algebra
The distance of a number from zero; the positive value of a number.
additive inverse
Mathematics; Algebra
The additive inverse of any number x is the number that gives zero when added to x.
cross multiplication
Mathematics; Algebra
A method of simplifying an equation in order to solve it for a particular variable or unknown, or in order to show it in a form having fewer fraction. Multiplying (or dividing) ...
factoring
Mathematics; Algebra
A method of separating a product into the different factors that make up it. This procedure is very useful in solving equations for unknowns. For example, one can factor the ...
negative correlation
Mathematics; Algebra
A negative correlation exists between x and y if their values are related in an opposite way - i.e. as x increases, y decreases or as x decreases, y increases.
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