Answer:
no this is not a function
Step-by-step explanation:
because if you do the line test it touches both of the lines its kinda hard to explain but yeah
 
        
             
        
        
        
<span>b. (0.035)(50,000) + (0.065)(31,500)</span>
        
                    
             
        
        
        
Answer:
See attached photo.
Step-by-step explanation:
x = -2y^2 + 4y + 2
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
 
        
                    
             
        
        
        
The independent variable here is b, the number of mats; the dependent var. is p, the cost of b mats. Thus, p = f(b). 
Here, 245 units^3 = pi*r^2*(5 units), or 
 245 units^3
r^2 = ------------------- = 15.61 units^2. Thus, the radius is sqrt(15.61 units^2), or
 5(3.14) units 3.95 units. The DIAMETER is d = 2*r = 7.90 units.