Answer:
35%
Step-by-step explanation:
Answer:
The sum of all real numbers x that are not in the domain of the function f(x) is 2.
Step-by-step explanation:
The given function is
![f(x)=\frac{1}{x^2-7}+\frac{1}{x^3-8}+\frac{1}{x^4-9}](https://tex.z-dn.net/?f=f%28x%29%3D%5Cfrac%7B1%7D%7Bx%5E2-7%7D%2B%5Cfrac%7B1%7D%7Bx%5E3-8%7D%2B%5Cfrac%7B1%7D%7Bx%5E4-9%7D)
The domain is the set of inputs. So, the domain of the given function is all real numbers except those numbers for which denominator values is equal to 0.
![x^2-7=0](https://tex.z-dn.net/?f=x%5E2-7%3D0)
![x^2=7](https://tex.z-dn.net/?f=x%5E2%3D7)
![x=\pm \sqrt{7}](https://tex.z-dn.net/?f=x%3D%5Cpm%20%5Csqrt%7B7%7D)
It means
is not included in domain.
![x^3-8=0](https://tex.z-dn.net/?f=x%5E3-8%3D0)
![x^3=8](https://tex.z-dn.net/?f=x%5E3%3D8)
![x=2](https://tex.z-dn.net/?f=x%3D2)
It means 2 is not included in domain.
![x^4-9=0](https://tex.z-dn.net/?f=x%5E4-9%3D0)
![x^4=9](https://tex.z-dn.net/?f=x%5E4%3D9)
![x^2=\pm 3](https://tex.z-dn.net/?f=x%5E2%3D%5Cpm%203)
![x=\pm \sqrt{3}](https://tex.z-dn.net/?f=x%3D%5Cpm%20%5Csqrt%7B3%7D)
It means
is not included in domain.
The sum of all real numbers x that are not in the domain of the function f(x) is
![Sum=-\sqrt{7}+\sqrt{7}+\sqrt{3}-\sqrt{3}+2=2](https://tex.z-dn.net/?f=Sum%3D-%5Csqrt%7B7%7D%2B%5Csqrt%7B7%7D%2B%5Csqrt%7B3%7D-%5Csqrt%7B3%7D%2B2%3D2)
Therefore the sum of all real numbers x that are not in the domain of the function f(x) is 2.
Answer:
the answer is 12
i used 5 12 13 special trangle
and there is 2 angle 56 and 34
so the biggest angle meet the 12
and the little angle meet the 5
hopefully its correct