Triangle Area = .5 * base * height
48 = .5 * (x +4) * x
48 = (.5x + 2) * x
48 = .5x^2 + 2x
.5x^2 + 2x -48 = 0
x = 8 
base = 12
 
        
                    
             
        
        
        
Answer:
B or $8.75 
Step-by-step explanation:
Hope this helps!
 
        
                    
             
        
        
        
Step-by-step explanation:
Since the powers are equal you can write the expression as a one root
But we cannot get 9 out since the square root of 9 is 3 which is second power (3^2) and the power of the root is 4
Holpe this helps, if you need further explanation you can ask.
 
        
             
        
        
        
Answer:
2500
Step-by-step explanation:
 i calculated it