For Question 1: 
angle CAB, angle ABC, angle BCA
Question 2: angle BCD
        
             
        
        
        
<span>It could be C. If the blade spends twice in a minute, it would be 30 seconds. 30=2pi/B=pi/15. </span>
        
                    
             
        
        
        
Answer:
   2-square root 3, 2+ square root 3
Step-by-step explanation:
If the polynomial has rational and real coefficients, the roots will be "conjugates" of each other. That is, the sum of the root should be a rational number. So, the irrational parts will be opposites, while the rational parts remain the same.
   2±√3 . . . can be the roots of p(x) when p(x) has rational real coefficients
 
        
             
        
        
        
Answer:
x = 7/0.25
x =$28
Step-by-step explanation:
y=0.25x
but y= $7(amount spent)
put 7
 
        
             
        
        
        
Answer:
Step-by-step explanation:
8 multiplied by .75 = 6 which is 25 percent off.