# 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

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2. 👎 0
3. 👁 99
1. Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown.

Disagree.

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

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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.

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posted by Henry

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