Here’s the answer because I can’t do the arrow thing on phone
 
        
        
        
Answer:
-2.5?
Step-by-step explanation:
 
        
             
        
        
        
From the figure, we immediately have
cos(θ) = 8/17
sin(θ) = 15/17
By definition of tangent,
tan(2θ) = sin(2θ)/cos(2θ)
Recall the double angle identities:
sin(2θ) = 2 sin(θ) cos(θ)
cos(2θ) = cos²(θ) - sin²(θ) = 2 cos²(θ) - 1
Then
tan(2θ) = (2 sin(θ) cos(θ)) / (2 cos²(θ) - 1)
tan(2θ) = (2 × 15/17 × 8/17) / (2 × (8/17)² - 1)
tan(2θ) = -240/161
 
        
             
        
        
        
Answer:
R theta 1 = 20 x
R theta 2 = 11 x  - 6
R ( theta 1 + theta 2) = 31 x - 6     adding equations
R pi = 31 x - 6       since theta 1 + theta 2 = 180 deg
x = (R pi + 6)  / 31
This equation depends only R
If one lets R be one then   x = (pi + 6) / 31
This would give x = .29489 rad for the value of pi is deg
The numerical value of x appears to depend on the value of R
 
        
             
        
        
        
Answer:
A function is a relation in which each possible input value leads to exactly one output value