Answer:
Option A. 
Step-by-step explanation:
we know that
The tangent of angle ∅ is equal to divide the sine of angle ∅ by the cosine of angle ∅
so

therefore
The missing value is

Answer:
4:5 8:10 16:20
Step-by-step explanation:
Answer is 2 because it’s true
Answer:
-47b + 19
Step-by-step explanation: