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Mathematics 19 Online
OpenStudy (anonymous):

what does a semicolon mean in mathematics?

OpenStudy (anonymous):

it means "such that" for example, {x: x>4} means the set that contains all numbers x "such that" x is bigger than 4. or another way to say that is the set that contains "all numbers bigger than 4"

OpenStudy (anonymous):

ok what is the absolute value of a positive number?

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