Express 0.0085 in standard form.
A8.5 × 10⁻²
B8.5 × 10⁻³CORRECT
C8.5 × 10²
D0.85 × 10⁻²
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Why the answer is B, and why the others tempt you.
0.0085 = 8.5 × 10⁻³ (move decimal 3 places right).
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