Step-by-step explanation:
AB + BC = AC
50° + BC = 180°
BC = 180° - 50°
BC = 130°
AB = 50°
BC = 130°
AC = 180°
Substitute the value of x = -2 to the inequalities:
-3x < 1
(-3)(-2) < 1
6 < 1 FALSE
x - 7 < -4
-2 - 7 < -4
-9 < -4 TRUE
-12/x > 10
-12/(-2) > 10
6 > 10 FALSE
x + 7 > 5
-2 + 7 > 5
5 > 5 FALSE
Answer: x - 7 < -4