What is the numerical coefficient of the monomial \(10z\)?
The numerical coefficient of a monomial is the number multiplied by its variable. In \(10z = 10 \times z\), the number \(10\) is the coefficient of \(z\). Therefore, the correct answer is \(10\). The expression \(10z\) is the complete monomial, while \(z\) is only the variable. Exam tip: identify the numerical factor multiplying the variable.
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