Answer:
subtract the exponents
Step-by-step explanation:
To divide powers of the same base, you can subtract the exponents.
 
        
             
        
        
        
Answer:
the smallest prime factor of 52 is 2
Step-by-step explanation:
What is the smallest prime that is a factor of 52?
52 = 4*13, or 52 = 2*2*13.  So the smallest prime factor of 52 is 2.
 
        
             
        
        
        
All real numbers except -4 and 9.    
The domain of an expression is the range of all values for which the expression is defined. Looking at the expression, it will legal everywhere except when a^2 - 5a - 36 is equal to 0. Since that's a quadratic equation, we can use the quadratic formula to find where its value is 0, giving -4 and 9.    
Therefore the domain of the expression is, All real numbers except -4 and 9.
        
             
        
        
        
Answer:
the missing angle is 130
Step-by-step explanation:
180-50=130