Since the circle is centered at the origin, we can use the equations
x² + y² = r²
x = r cos θ
y = r sin θ
We know y = 8 and r = 10. Solving for x
x² + 8² = 10²
x = 6
From this equation:
x = r cos θ
6 = 10 cos θ
cos θ = 6/10 = 0.6
        
             
        
        
        
Answer:
so 2x+3x+130=180
so 5x+130=180
 5x=50
 so 2x =20 
 3x which is angle a is equal to 30 degree
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
I = prt
Switch sides.
prt = I
We are solving for p. We want p alone on the left side. p is being multiplied by r and t, so we divide both sides by r and t.


 
        
             
        
        
        
What they said^ lolllllllllll
        
             
        
        
        
Answer: a
Step-by-step explanation: