roea2021; chp 1
Associative Property of Addition
(a + b) + c = a + (b + c)
Associative Property of Multiplication
(ab)c = a(bc)
whole numbers
0, 1, 2, ...
natural numbers
1, 2, 3...
probability
event/sample space
equivalent fractions
fractions that represent the same quantity
elements
numbers inside the brackets of a matrix
grouping symbols
parentheses, brackets, braces and fraction bar
odds
predicting outcomes of favorable/unfavorable or unfavorable/favorable
real numbers
rational + irrational numbers
theoretical probability
sample space contains equally likely outcomes, all of which are known
absolute value
the distance a number is from 0 on the number line
denominator
the integer in the bottom of a fraction
numerator
the integer in the top of a fraction
simplified or in lowest terms
the numerator and the denominator have no common factors
sample space
the set of all possible outcomes of an expreiment
factor
to write as a product
reciprocals or multiplicative inverses
two fractions whose product is 1
opposites or additive inverses
two numbers the same distance from 0 but lie on opposite sides of 0 on the number line
supplementary angles
Two angles whose sum is 180 degrees
complementary angles
Two angles whose sum is 90 degrees
Identity Property of Addition
a + 0 = a
Commutative Property of Addition
a + b = b + a
algebraic expression
a collection of numbers, variables, operation symbols and grouping symbols but no = sign
set
a collection of objects
prime numbers
a natural number other than 1 whose only factors are 1 and itself
composite numbers
a natural number that has more than 2 factors
exponential expression
a number written with a bas and an exponent; power
counterexample
a specific example of the falsity of a statement
event
a subset of the sample space
Identity Property of Multiplication
a x 1 = a
Distributive Property
a(b+c)=ab+ac
Commutative Property of Multiplication
ab=ba
irrational numbers
all numbers, when in decimal form, do not end nor repeat
matrix
an array
element or member
an object in a set
experiment
any occurrence form whicvh the outcome is uncertain
rational numbers
All positive and negative integers, fractions and decimal numbers, that end or repeat in decimal form
