b)15600
c)78
Answer:
b
Step-by-step explanation:
A.
B.
C.
D.
Point : (0,5)
Slope: m=-3/5
Answer:
∠ B = 25°
Step-by-step explanation:
the sum of the three angles in a triangle = 180° , that is
∠ A + ∠ B +∠ C = 180° ( substitute values for A and C )
33° + ∠ B + 122° = 180° , that is
155° + ∠ B = 180° ( subtract 155° from both sides )
155° - 155° + ∠ B = 180° - 155° , that is
∠ B = 25°