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Baker 7th grade chapter 5

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arithmetic sequence

a sequence in whick the difference between any two consecutive terms is the same

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bar notation

In repeating decimals the line or bar placed over the digits that repeat

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common difference

The difference between any two consecutive terms in an arithmetic sequence

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common ratio

the ratio between any two consecutive terms in a geometric sequence

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dimensional analysis

The process of including unit of measurement when computing

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geometric sequence

A sequence in which the ratio between any two consecutive terms is the same

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least common denominator

The least common multiple of the denominators of two or more fractions

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least common multiple

the least of the non zero common multiples of two or more numbers

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mean

The sum of data divided by the numbers of items in the data set also called the average

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measure of central tendency

for a list of numerical data numbers that can represent the whole set of data : mean, mode median

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median

In a set of data the muddle number of the ordered data or the mean of the two middle numbers

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mode

The numbers or number that occurs most often in a set of data

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multiple

The product of a number and a whole number

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multiplicative inverse

two numbers whose product is 1

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period

In a repeating decimal the digit or digits that repeats

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rational number

A number that can be written as a fraction in the form a/b (a over b) where a and b are integers and b not 0

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reciprocal

another name for a mutinricative inverse 1/4 4/1

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repeating decimal

a decimal whose digits repeat in groups of one or more

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term

Each number within a sequence is called a term