Algebra

Which of the following is less than 6.5×10^-5

A. 1.4x10^-3***
B. 2.5x10^-4
C. 7.8x10^-5
D. 4.6x10^-6

Please check my answer

asked by Meh
  1. Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown.

    Disagree.

    posted by PsyDAG
  2. 10^-5 = .00001
    10^-3 = .001

    posted by PsyDAG
  3. 1.4*10^-3/6.5*10^-5 = 0.215*10^2 = 21.5.
    The ratio is greater than one. Therefore the number is greater than
    6.5*10^-5. The ratio should be less than one.

    posted by Henry

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