Answer:
67 mm
Step-by-step explanation:
use area of a trap formula: 
b1+b2 /2*h
b1=base 
b2=base
h=height
in our case it was, 8.2+5.2/2*10
67
 
        
             
        
        
        
Answer:
The answer rewritten is y=x-3+x+2-x-5=x-6
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
[- 4, ∞ )
Step-by-step explanation:
the expression inside the radical must be greater than or equal to zero
x +4 ≥ 0 ⇔ x ≥ - 4
domain: x ∈ [- 4, ∞ )
 
        
             
        
        
        
Answer:
the first image (the image with the upward sloping line)
Step-by-step explanation:
If the amount of sugar used in the mixture is proportional to the amount of water used, as more water is used, the more sugar is used. So, as more water is used, more sugar is used.
If the amount of water used is constant regardless of the amount of sugar, the appropriate graph would be the second graph. the graph with the straight line
 
        
             
        
        
        
Answer:
YES
Step-by-step explanation:
57+45=102.
The triangle needs to have angles that add up to 180 so..
180-102=78
and that is the other degree instead of 45 on the other triangle