10-3 equals:

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Multiple Choice

10-3 equals:

Explanation:
A key idea here is how negative exponents work. When you see 10 with a superscript of minus 3, that means 10^-3, which is the reciprocal of 10^3. Since 10^3 is 1000, 10^-3 is 1/1000 (0.001). So the result is 1/1000. If the exponent were positive, like 10^3, you’d get 1000; a more negative exponent like 10^-4 would give 1/10000; and if you were squaring the base, 10^2 would give 100.

A key idea here is how negative exponents work. When you see 10 with a superscript of minus 3, that means 10^-3, which is the reciprocal of 10^3. Since 10^3 is 1000, 10^-3 is 1/1000 (0.001). So the result is 1/1000. If the exponent were positive, like 10^3, you’d get 1000; a more negative exponent like 10^-4 would give 1/10000; and if you were squaring the base, 10^2 would give 100.

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