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laiz [17]
2 years ago
9

Helpmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm

Mathematics
1 answer:
alexandr402 [8]2 years ago
6 0

Answer:

  B.  1.2×10^-3 mm

Step-by-step explanation:

What constitutes an "appropriate" unit depends on the use of the number. Since we're not told of any particular use, we might choose the smallest of the available units: mm.

  1.2×10^-3 mm

_____

<em>Additional comment</em>

The most appropriate unit would be the one that eliminates the power-of-ten multiplier:

  = 1.2 µm

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