Answer:
12
Step-by-step explanation:
×12+8
18x-3=4x+11
-5 -4
14x-3=11
+3+3
14x=14
x=1 answer =1
Answer:
C. sin(90° - θ)
Step-by-step explanation:
A trig function of an angle equals the cofunction of the angle's complement.
The cofunction of cosine is sine, and the complement of θ is 90° - θ.
∴ cosθ = sin(90° - θ)
