Answer:
9
Step-by-step explanation:
4x9=36
5x9=45
6x9=54
7x9=63 
(:
 
        
                    
             
        
        
        
Answer:
A
Step-by-step explanation:
(x-4)^2 = x^2 -4x -4x + (-4)*(-4)
= x^2-8x+16 as required
 
        
             
        
        
        
I remember CUP -- concave up positive.  Here we have a leading coefficient that's negative, so the cup is upside down, the parabola opens down, an arch not a bowl.
        
             
        
        
        
Answer:  1,811 square foot
Step-by-step explanation:
Hi, to answer this question we have to solve the equation given, by substituting P = 4,148 and f=190 in the equation.
P = 1.85s + 4.2f
4,148 = 1.85s +4.2 (190)
Solving for s:
4,148 = 1.85s +798
4,148-798 =1.85s
3,350 = 1.85s
3,350/1.85 =s
s = 1,810.81 = 1,811 square foot  (rounded)
Feel free to ask for more if needed or if you did not understand something.