Glencoe Math accelerated: a pre algebra program Chap. 4 vocab
scientific notation
a number in scientific notation is expressed as a times 10n.
standard form
a number is in standard form when it does not contain exponents. The standard form for seven hundred thirty-nine is 739
irrational number
a number that cannot be expressed as a/b where a and b are integers and b does not equal 0
power
a number that is expressed using an exponent
perfect cubes
a number that is the cube of an integer. 1, 8, and 27 are examples of perfect cubes
monomial
an expression that is a number, a variable, or a product of numbers/variables
negative exponent
negative exponents are the result of repeated division
cube root
one of 3 equal factors of a number. the cube root of 8 is 2 since 2 times 2 times 2 equals 8
square root
one of the 2 equal factors of a number. the square root of 25 is 5 since 5 times 5= 25
perfect squares
rational number whose square root is a whole number
base
the base is used as a factor as how many times as given by the exponent
exponent
the exponent tells how many times the base number is used as a factor
real numbers
the set of rational numbers together with the set of irrational numbers
radical sign
the symbol √ used to indicate a nonnegative square root