NEWEST EXAM WITH DETAILED ANSWERS
Discrete data - (correct answer) Has distinct values, can be counted, had
unconnected points (think dots)
Continuous data - (correct answer) Has values within a range, measured not
counted, does not have gaps between data points (data is connected lines or curves).
Example of discrete data - (correct answer) Days of the week
Expressions - (correct answer) A group of symbols such as numbers and operators
that has mathematical validity
Commutative - (correct answer) The order in which the numbers appear in the sum
can be reversed
Identity property - (correct answer) Adding 0 to any number does not change the
original number
Additive inverse - (correct answer) Values that are equally far from 0 on the number
line.
Negative - (correct answer) When multiplying a positive number by a negative
number the result is always
Positive - (correct answer) Multiplying a negative number by a negative number
results in a positive
Factors - (correct answer) Integers that evenly divide the initial integer
Prime number - (correct answer) Positive integer with exactly two positive factors
consisting of 1 and itself
Composite number - (correct answer) Has at least one positive factor other than one
and itself
Factorization - (correct answer) Process of breaking up a composite number into its
prime factors
fundamental theorem of arithmetic - (correct answer) Any integer greater than one is
either Prime or the product of Prime numbers
Principal square root - (correct answer) Positive square root of a number
, Radican - (correct answer) Number under radical sign √16=4
Open Circle - (correct answer) Represents less than or greatest than on the number
line
Perfect square - (correct answer) Product of any integer with itself yields a perfect
square.
Whole numbers - (correct answer) positive numbers with a whole value
Integers - (correct answer) Numbers with no fractions or decimal value but can be
positive or negative
Rational numbers - (correct answer) Numbers that can be expressed as a fraction or
decimal values that have that end or repeat forever. Includes all integers since all
integers can be expressed as fractions.
Real numbers - (correct answer) Everything that can be included in a number line
including pi.
Fractions - (correct answer) Express numbers which are part of a whole
Numerator - (correct answer) Number written before the slash or above the fraction
bar
Proper fraction - (correct answer) Numerator is less than denominator and the value
of the fraction is less than one
Improper fraction - (correct answer) Numerator is greater than denominator and
therefore is greater than one except with negative fractions
Mixed numbers - (correct answer) A whole number and proper fraction. A negative
sign in front applies to both parts of the mixed number.
Multiples - (correct answer) Integers created by multiplying one number times
another number
Fractions - (correct answer) Express numbers which are part of a whole
Numerator - (correct answer) Number written before the slash or above the fraction
bar
Proper fraction - (correct answer) Numerator is less than denominator and the value
of the fraction is less than one