Glencoe Math accelerated: a pre algebra program Chap. 4 vocab

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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


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