Respuesta :

Answer:

7

Explanation:

Given the expression:

[tex]\frac{z^2-3y}{z}[/tex]

We want to evaluate the expression when y=6 and z=9.

Substitute the given values into the expression.

[tex]\frac{z^2-3y}{z}=\frac{9^2-3(6)}{9}[/tex]

Next, simplify:

[tex]\begin{gathered} =\frac{81-18}{9} \\ =\frac{63}{9} \\ =7 \end{gathered}[/tex]

The value of the expression when y=6 and z=9 is 7.