pre-algebra

An estimate for negative Square Root 66 is _____.
A. – 6
B. – 7
C. – 8
D. – 9

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  1. None of those. A minus times a minus is always positive.

    https://mathbitsnotebook.com/Algebra1/Radicals/RADNegativeUnder.html

  2. Is it because when you multiply, the answer is bigger Ms. Sue?

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  3. If you meant:
    - √66, then it would be appr -8 , since -√64 = -8

    if you meant:
    √-66 , then go with Ms. Sue's answer, of no such real number.

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  4. It's - √66, and it was 8

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