Which of the following are rational numbers?

Hi there!  

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I believe your answer is:  

{7, -5, (2/3), 5.79}

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Here’s why:  

Rational numbers are numbers that could be written as a fraction with two integers.

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7 and -5 are integers, so they are rational. is already a fraction with integers. It is rational.5.79 is a terminating decimal. It is rational.The number π is a famous irrational number. It does not terminate nor repeat. is not a perfect square. It is irrational. is a perfect square, but it is simplified to a complex number. Complex numbers are not rational.

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The rational numbers are {7, -5, (2/3), 5.79}.

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Hope this helps you. I apologize if it’s incorrect.  

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