Answer:
The value is 1/(3^3 * 10^3) or 1/27,000
Explanation:
In order to find this, we need to note that negative exponents can be moved to the denominator to become positive. Then you can evaluate them.
3^-3 x 10^-3
1/3^3 * 1/10^3
1/27 * 1/1,000
1/27,000