Answer:
All rational numbers less than 7
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
A = 50.3 cm²
Step-by-step explanation:
<u><em>Area of a circle = </em></u> <u><em></em></u>
<u><em></em></u>
Where r = 4 cm
A = π(4)²
A = 16(3.14)
A = 50.3 cm²
 
        
             
        
        
        
The circle equation is in the format (x – h)2 + (y – k)2 = r2, with the center being at the point (h, k) and the radius being "r". 
Therefore the radius is √49=7 and the center coordinates are (0,0)