Answer:
root(250)
answer choice C
Step-by-step explanation:
explanation in the pic above.
160 x 4 =? ~a~
~b~ solve the equation i gave you
0.08.
0.8/10 is 0.08
the answer is 0.08
Answer:
The value at x =3 is undefined for the given expression
Step-by-step explanation:
Given expression is ![\frac{2x^2+8x}{(x+4)(x^2-9)}](https://tex.z-dn.net/?f=%5Cfrac%7B2x%5E2%2B8x%7D%7B%28x%2B4%29%28x%5E2-9%29%7D)
To find for what value of x is undefined in the given expression :
![\frac{2x^2+8x}{(x+4)(x^2-9)}=\frac{2x(x+4)}{(x+4)(x^2-9)}](https://tex.z-dn.net/?f=%5Cfrac%7B2x%5E2%2B8x%7D%7B%28x%2B4%29%28x%5E2-9%29%7D%3D%5Cfrac%7B2x%28x%2B4%29%7D%7B%28x%2B4%29%28x%5E2-9%29%7D)
![=\frac{2x}{x^2-9}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B2x%7D%7Bx%5E2-9%7D)
![\frac{2x^2+8x}{(x+4)(x^2-9)}=\frac{2x}{x^2-9}](https://tex.z-dn.net/?f=%5Cfrac%7B2x%5E2%2B8x%7D%7B%28x%2B4%29%28x%5E2-9%29%7D%3D%5Cfrac%7B2x%7D%7Bx%5E2-9%7D)
If we put x=3 in the above expression we get
![\frac{2x}{x^2-9)}=\frac{2(3)}{3^2-9}](https://tex.z-dn.net/?f=%5Cfrac%7B2x%7D%7Bx%5E2-9%29%7D%3D%5Cfrac%7B2%283%29%7D%7B3%5E2-9%7D)
![=\frac{6}{9-9}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B6%7D%7B9-9%7D)
![=\frac{6}{0}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B6%7D%7B0%7D)
Therefore ![\frac{2x^2+8x}{(x+4)(x^2-9)}=\frac{6}{0}](https://tex.z-dn.net/?f=%5Cfrac%7B2x%5E2%2B8x%7D%7B%28x%2B4%29%28x%5E2-9%29%7D%3D%5Cfrac%7B6%7D%7B0%7D)
The value at x =3 is undefined for the given expression