Answer:
-4
Step-by-step explanation:
y=-4x-9
y=mx+b
m=slope
Answer:
sin α = 
Step-by-step explanation:
sin α =
=
= 
Answer:
88 deg
Step-by-step explanation:
Opposite angles of an inscribed quadrilateral are supplementary. That means that the sum of the measures of angles O and Q is 180 deg.
2x + 2x + 4 = 180
4x + 4 = 180
4x = 176
x = 44
m<O = 2x = 2(44) = 88
Answer: 88 deg