When 27 times x squared times z all over negative 3 times x squared times z to the fourth power is completely simplified, the exponent on the variable z is numerical answers expected! i have attached a picture of the problem so it's easier to read.

The exponent on the variable z is (-3).

Step-by-step explanation:

Exponent: A quantity representing a power upto which a number of expression is raised often written in superscript of number or an expression..

Given expression:

Using identity :

The exponent on the variable z is (-3).

it is true

step-by-step explanation:

all the combinations add up i used   calculator