Step-by-step explanation:
R= 2,045.1071428571 espero sea lo que necesitas :)
1. X=55
2. X=4
3. X=6
4. X=8
-3x^2 +10x
All you have to do is combine like terms!
2X13-(6+14)=6
That's the answer.
The sum of the angles of an n-sided polygon is (n-2)×180°
For a 30-gon, it would be 28x180 = 5040, answer B
Second question is more of a trick question. Exterior angles always add up to 360. So answer H.