A set s consists of all real numbers between 17 and 21 , inclusive. Use set-builder notation to define s

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Explanation:

The curly braces tell us we're dealing with a set of values.

The notation means "x is in the set of real numbers". In other words, it says "x is a real number".

Writing tells the reader that x is between 17 and 21, including both endpoints.

Put everything together and means "we have a set of real numbers x that are between 17 and 21, inclusive".

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Extra info:

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!