Answer:
3  -1  -2
5   1  6
Step-by-step explanation:
An augmented system has the coefficients for the variables and then the solution going across
Rewriting the equations to get them in the form
ax + by = c
-3x+y =2
3x-y =-2
5x+y = 6
The matrix is
3  -1  -2
5   1  6
 
        
                    
             
        
        
        
Answer:
1 is congruent 2 is neither and 3 is similar
Step-by-step explanation:
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1.) -21
2.) 5
3.) -20 
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Answer:
12 degrees
Step-by-step explanation:
8 below zero is -8.
20+ -8 = 12