
The denominator of a fraction can't be equal to 0.

The function is undefined at x=-1, x=2, x=4, because for these values the denominator of the function would equal 0, and it's impossible to divide by 0.
Edward is correct.
For this case we have by definition, that the sum of the exterior angles of a polygon is equal to 360 degrees, only when considering only one exterior angle for each vertex of the polygon, regardless of the number of sides it possesses. That said we have to:
The external angle of a regular polygon is given by:

Where:
n: It is the number of sides of the polygon
Then, for a nonagon each exterior angle will measure:

Answer:
40 degrees each exterior angle
360 degrees the sum
Answer:
c
Step-by-step explanation:
This is a parabola, so it is a quadratic parent function.
Firstly, the best thing to do is add together the purchases.
164+22= 186
As she's then paid some of this off, you then need to subtract this amount
186-90= 96
Therefore, the current balance on Jennifer's credit card is $96
Hope this helps :)