The answer is x= 20.
Plug 8 in for y and then add 2 to both sides. You'll get 10= 1/2x so divide both sides by 1/2 to get your answer of 20.
Here are a few rules with exponents that apply here:
- Raising a power to a power:

- Dividing exponents of the same base:

- Converting negative exponents to positive ones:

Firstly, solve the outer exponent:

Next, divide:

Next, convert the negative exponents:

<u>Your final answer is n^10/16m^6 , or B.</u>
It is centered at (h,k) --> (0,0) and has a radius 9
The equation of the circle is

Hope that helps!
Answer:
Step-by-step explanation:
intersection = { } no common elements.
union = { b,d,f,a,c,k}