The first one. The sum of all angles on a triangle is always equal to 180
Answer:
Step-by-step explanation:
The sign minus indicates that the power is located on the denominator

Answer:
you can do the first one but the reflection one i would have to work it out more
Step-by-step explanation:
Answer: (1,-1)
Step-by-step explanation:
- You can multiply the first equation by -1
- Add the equations.
- Solve for x, as following:

- Substitute the value of x into any of the original equations and then you must solve for y:

Therefore, the solution is: (1,-1)
<em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>:</em><em>)</em><em>✌</em><em>✌</em>