Answer:
unlock code is 11
A= 27
B=16
C=1
(11)^1 = 11
Step-by-step explanation:
Answer:
J: 84%.
Step-by-step explanation:
I don't really know how to explain this one.
ANSWER
![( - \infty , - 7) \cup( - 7 , 0) \cup(0 , 7 )\cup(7 , + \infty )](https://tex.z-dn.net/?f=%28%20-%20%20%5Cinfty%20%2C%20-%207%29%20%5Ccup%28%20-%207%20%2C%200%29%20%5Ccup%280%20%2C%207%20%29%5Ccup%287%20%2C%20%2B%20%20%20%5Cinfty%20%29)
EXPLANATION
The given function is
![h(x) = \frac{9x}{x( {x}^{2} - 49) }](https://tex.z-dn.net/?f=h%28x%29%20%3D%20%20%5Cfrac%7B9x%7D%7Bx%28%20%7Bx%7D%5E%7B2%7D%20-%2049%29%20%7D%20)
This function is defined for values where the denominator is not equal to zero.
![x( {x}^{2} - 49) \ne0](https://tex.z-dn.net/?f=x%28%20%7Bx%7D%5E%7B2%7D%20%20-%2049%29%20%5Cne0)
![x(x - 7)(x + 7) = 0](https://tex.z-dn.net/?f=x%28x%20-%207%29%28x%20%2B%207%29%20%3D%200)
The domain is
![x \ne - 7, x \ne0, \: and \: x \ne 7,](https://tex.z-dn.net/?f=%20x%20%5Cne%20-%207%2C%20x%20%5Cne0%2C%20%5C%3A%20and%20%5C%3A%20%20x%20%5Cne%207%2C)
Or
![( - \infty , - 7) \cup( - 7 , 0) \cup(0 , 7 )\cup(7 , + \infty )](https://tex.z-dn.net/?f=%28%20-%20%20%5Cinfty%20%2C%20-%207%29%20%5Ccup%28%20-%207%20%2C%200%29%20%5Ccup%280%20%2C%207%20%29%5Ccup%287%20%2C%20%2B%20%20%20%5Cinfty%20%29)