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).

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq