Math 8R

Which of the following is NOT a real number?
a) 0.0005
b) 13/0
c) square root of 1/16

I picked c, am i correct???????

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asked by Laruen
  1. Yes.

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    posted by Sammy
  2. thank you

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    posted by Laruen
  3. Sorry, completely misread the order of the letters. No, b is correct. Because 13/0 is undefined.

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    posted by Sammy
  4. ohhhhh

    thank you!

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    posted by Laruen
  5. The square root of 1/16 is 0.25 which is a real number. When the number under the square root is negative , that's when you have a number that is not real.

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    posted by Sammy
  6. You're welcome.

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    posted by Sammy

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