I do not see an illustration.
Answer:
b
Step-by-step explanation:
I think it's SAS
It is because O is the common angle and the two sides are similar.
I’m pretty sure the answer is b :)
Answer: 190
Step-by-step explanation:
30x6=180+10=190
Step one:
ALWAYS set equation equal to zero, which in this case has already been done for us.
Step two:
Figure out what formula you need to use in order to solve in this case I'd use the Quadratic formula.
a=1
b=9
c=2
Quadratic formula:
![x = \frac{ - b + - \sqrt{(b) ^{2} - 4(a)(c)} }{2(a)}](https://tex.z-dn.net/?f=x%20%3D%20%20%5Cfrac%7B%20-%20b%20%2B%20%20-%20%20%5Csqrt%7B%28b%29%20%5E%7B2%7D%20%20-%204%28a%29%28c%29%7D%20%7D%7B2%28a%29%7D%20)
Then you would plug in the information.
![x = \frac{ - 9+ - \sqrt{(9) {}^{2} - 4(1)(2) } }{2(1)}](https://tex.z-dn.net/?f=%20x%20%3D%20%5Cfrac%7B%20-%209%2B%20%20-%20%20%5Csqrt%7B%289%29%20%7B%7D%5E%7B2%7D%20-%204%281%29%282%29%20%7D%20%7D%7B2%281%29%7D%20)
The solve for what is underneath the square root ONLY.
![x = \frac{ - 9 + - \sqrt{73} }{2}](https://tex.z-dn.net/?f=x%20%3D%20%20%5Cfrac%7B%20-%209%20%2B%20%20-%20%20%5Csqrt%7B73%7D%20%7D%7B2%7D%20)
Since you cannot solve this any further, your final two answers are...
![x = \frac{ - 9 + \sqrt{73} }{2}](https://tex.z-dn.net/?f=x%20%3D%20%20%20%5Cfrac%7B%20-%209%20%2B%20%20%5Csqrt%7B73%7D%20%7D%7B2%7D%20)