Answer:
i think it would be a model.
Step-by-step explanation:
 
        
                    
             
        
        
        
So volume of a cube=edge legnth cubed so take the cube root of 1000 and get 10
the side legnth is 10 feet
        
             
        
        
        
2x^2 - 11 = 87
2x^2 = 87 + 11 = 98
x^2 = 98/2 = 49
x = sqrt (49) =  + or - 7
        
                    
             
        
        
        
Answer:
31.25×
Step-by-step explanation:
suppose that the value of x was 3 . that would mean that they bought 3 calculators . 
if one calculator is $31.25 then 3 would be $31.25× 3 
the same rule would apply for x 
 
        
             
        
        
        
1: -5 = 3m + c
2: -2 = 0 + c
From equation 2, we knew c = -2
So we sub into equation 1 and got the value of m 
-5 = 3m - 2
m = -1
The equation of line is y = -x - 2