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# ALG I LAP 2

TermDefinition
variable a letter that represents a number
evaluate find the value of a numerical expression by substituting numbers for variables
variable expression combination of numbers and variables joined by arithmetic operations
perimeter the measure around a geometric figure
area the number of square units contained by a geometric figure
volume the number of cubic units contained in a 3 dimensional geometric figure
Commutative Property for addition and multiplication, order doesn't matter 3 + a = a + 3
Associative Property for addition and multiplication, grouping doesn't matter (a + 3) + b = a + (3 + b)
Distributive Property 4(a + b) = 4a + 4b
constant a symbol that always represents the same number ex; 5x + 3 3 is constant
numerical coefficient the number portion of a term, always before the variable ex. 3ab 3 is coefficient
like terms same variables with the same exponents
exponential form term written with exponents
factored form no exponents, shown as repeated multiplication
Product of Powers if multiplying two or more monomials, add exponents if bases are the same
perimeter of a rectangle 2 Lengths + 2 widths
area of a rectangle Length times Width
Created by: mcchesney