Answer:
48
Step-by-step explanation:
We need to find the multiples of 8
8,16,24,32,40,48
48 is between 45 and 50 so he must have bought 48
 
        
                    
             
        
        
        
Area of the 2 end triangles plus area of the 2 rectangular sides plus the area of the bottom rectangle 
2 end Triangles
=2x(1/2bh)
=2x1/2x4x6
=24
2 side rectangles
=2(lw)
=2x5x13
=130
Bottom rectangle
=6x13
=78
Total = 24 + 130 + 78 =232
        
             
        
        
        
Answer:
Step-by-step explanation:
"Find the values of x that satisfy 3x - 2x^2 = 7."  Please do not use " × " to represent a variable; " × " is an operator, the "multiply" operator.
Rearrange these three terms in descending order by powers of x:
-2x^2 + 3x - 7 = 0.   Here the coefficients are a = -2, b = 3 and c = -7, and so the discriminant of this quadratic is b^2-4ac, or 9 - 4(-2)(-7), or 9 - 56, or -47.
Because the discriminant is negative, we'll have two different complex roots here.  The quadratic formula becomes
        -3 ± i√47         -3 ± i√47
x = ----------------- = -------------------
         2(-2)                     -4
 
        
             
        
        
        
The answer will be 45 because it’s a right angle