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Algebra

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Which equation shows an exact computation?
A. 12/7 = 1.714
B. 2π = 44/7
C. 22/7x14 = 44
D. 2√2 = 2.818

And if possible, could you explain what exact computation is? Thank you.

  • Algebra -

    44 is exactly 22/7 * 14 or 22*2

    all the others are approximations where you could carry any number of decimal places after the decimal point. Try them with your calculator.

  • Algebra -

    So they have to equal the exact number, even when you round up?

  • Algebra -

    Exact, no rounding

  • Algebra -

    Oh ok, thanks.

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