1. The problem is to evaluate the expression $4.94 \times 10x^{-3}$. 2. This expression involves multiplication and an exponent with a variable $x$. 3. The term $10x^{-3}$ means $10$ multiplied by $x$ raised to the power of $-3$. 4. Recall that $x^{-3} = \frac{1}{x^3}$. 5. So, the expression can be rewritten as: $$4.94 \times 10 \times x^{-3} = 4.94 \times 10 \times \frac{1}{x^3} = \frac{49.4}{x^3}$$ 6. Therefore, the simplified form of the expression is: $$\frac{49.4}{x^3}$$ 7. This means the value depends on $x$, and for any nonzero $x$, you can substitute to find the numerical value.