Answer:
D. 6×10^-3
Step-by-step explanation:
When powers of the same base are divided, the power of the denominator is subtracted from the power of the numerator.
[tex]\dfrac{0.000024}{4\times10^{-3}}=\dfrac{24\times10^{-6}}{4\times10^{-3}}=\dfrac{24}{4}\times10^{-6-(-3)}=\boxed{6\times10^{-3}}[/tex]
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