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OCA - Alg - U1 L3
Real Numbers and the Number Line
14
Mathematics
09/01/2012

Term
 element of a set
Definition
 members of a set
Term
 inequality
Definition
 a mathematical sentence that compares the values of two expressions using and inequality symbol 3 < 7
Term
 integers
Definition
 whole numbers and their opposites..., -3, -2, -1, 0, 1, 2, 3, ...
Term
 irrational numbers
Definition
 a number that cannot be written as a ratio of two integers; non-terminating & nonrepeating
Term
 natural numbers
Definition
 the counting numbers1, 2, 3, ....
Term
 perfect square
Definition
 number whose square roots are integers1, 4, 9, 16, 25, 36, ...
Term
Definition
Term
Definition
Term
 rational number
Definition
 a real number that can be written as a ratio of two integers; terminating or repeating
Term
 real number
Definition
 a number that is either rational or irrational
Term
 set
Definition
 a well-defined collection of elements
Term
 square root
Definition
 a divisor of a quantity that when squared gives the quantity
Term
 subset
Definition
 a set which contains some or all of the elements from the original set
Term
 whole numbers
Definition
 non-negative integers; counting numbers & zero0, 1, 2, 3, ...
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