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Vocab and Properties
Properties
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100
symbol used to represent one or more numbers
What is a variable?
100
an expression may be replaced by another expression of equal value
What is substitution?
100
a given set of numbers that the variable may represent
What is domain?
100
the two operations in math are ____ and _____.
What are addition and multiplication?
100
the sum of two numbers is 50; if one of the numbers is "x" then the other number is ______
What is 50 - x ?
200
Sentence or equation containing variables
What is an open sentence?
200
replace each variable in a variable expression by a given VALUE and simplify.
What is evaluate?
200
guarantee there is one and only one answer when adding or multiplying real numbers
What is closure?
200
the sum of a number and its additive inverse is always
What is zero?
200
This equation represents the sum of three consecutive ODD integers is 15.
What is n + n + 2 + n + 4 = 15
300
mathematical phrase used to name a number
What is a numerical expression?
300
any value of a variable that turns an open sentence into a true statement.
What is solution?
300
replaces PEMDAS
What is GEMA
300
the product of a number and its multiplicative inverse is always
What is positive one?
300
twice the sum of some number "n" and negative 10 is 15.
What is 2(x + -10) = 15
400
mathematical phrase that uses numbers, variables and operations
What is a variable expression?
400
another name for solution
What is root?
400
a positive number that represents the distance between a number and zero on a number line
What is absolute value?
400
a + 0 = a "Zero" is called the _______ _________ for addition.
What is the identity element for addition?
400
the product of two consecutive integers is 110.
What is n(n + 1) = 110
500
replace a numerical expression or algebraic expression by the SIMPLEST name for its value
What is simplifying?
500
to find SOLution or SOLution set of an equation or open sentence
What is solve?
500
the grouping symbols are parentheses, brackets, set notation braces and _______.
What is the fraction bar?
500
a(1) = a "Positive One is the _______ ________ for multiplication.
What is identity element for multiplication.
500
a rectangle is 2 inches longer than it is wide and its perimeter is 38 inches.
What is 38 = 2w + 2(w + 2)