Answer:

Step-by-step explanation:
We are given that  is in <em>fourth</em> quadrant.
 is in <em>fourth</em> quadrant.
 is always positive in 4th quadrant and
 is always positive in 4th quadrant and  
 is always negative in 4th quadrant.
 is always negative in 4th quadrant.
Also, we know the following identity about  and
 and  :
:

Using \theta_1 in place of \theta:

We are given that 

 is in <em>4th quadrant </em>so
 is in <em>4th quadrant </em>so  is negative.
 is negative.
So, value of 
 
        
             
        
        
        
Answer:
16 I guess
Step-by-step explanation:
2*2 is 4
Then 4 times 4 is 16. 
 
        
                    
             
        
        
        
B 1 since you would round 1.9 to 2 and 0.7 to 1
        
                    
             
        
        
        
Answer:
x=-27, y=-15
Step-by-step explanation:
In the attached file 
 
        
                    
             
        
        
        
Your answer I’ll be choice C