A^2+b^2= c^2
16^2+ 28^2= c^2
 square root of 256+784 = square root of 1,040
32.25=32.25
C= 32.25
        
             
        
        
        
Well, 3^9 is the same thing as
3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3
So 3^9 is equal to 19,683
        
                    
             
        
        
        
Answer:
If we mean - √9, then it is a rational number.
Step-by-step explanation: