Xc/bx because imagine simply that bx is equal to ab and same with xc and ac
We are actually given a theorem that states that the sum of the interior angles of a regular n-gon is

Since all the interior angles of a regular n-gon have the same measure, each of these angles measures

radians. So, you don't need any inequality, because we know the exact value of any of the angles.
Answer:
A) 0
Step-by-step explanation:
The solution is a couple (x, y) that are the coordinates of the intersection point of the lines.
If the lines are parallel there is no intersection and no solution to the system of equations
Answer:
B) f(x) ≥ 3x + 4; g(x) ≤ -1/2x - 5
Step-by-step explanation:
Point B is above (≥) the boundary line for f(x) and below (≤) the boundary line for g(x). So, it satisfies the inequalities ...
f(x) ≥ (3x+4)
g(x) ≤ (-1/2x -5)