Answer:
A because its supposed to be on the y axis
 
        
             
        
        
        
Answer:
=3–√−13–√+1⋅3–√−13–√−1
=(3–√−1)23–√2−12
=3–√2+12−23–√3−1
=4−23–√2
2−13–√
a=2,b=−1.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
4:3
Step-by-step explanation:
Think of it like this:
4 beagles to 3 golden retrievers
4 beagles  :  3  golden retrievers
4                 :   3   
     
Just take out everything but the numbers.
 
        
             
        
        
        
2/5
think of .4 out of 1, or 4/10, then simplify, to 2/5
        
                    
             
        
        
        
Tan(x) = 5 ====> x= arc tan 5=====> x = 78.69