Answer:
Step-by-step explanation:
We know a triangle adds up to 180 so:
75+36+ ? = 180
111+ ? =180
? = 69
To find out x, we know that a straight line adds up to 180 so again:
x +69 = 180
x = 111
 
        
                    
             
        
        
        
Answer:
A
Step-by-step explanation:
This is because each x coordinate is mapped to a y coordinate.
 
        
             
        
        
        
Answer:
Absolute error = 39
Percent Error = 6.10%
Step-by-step explanation:
Actual value = 639 pounds
Observed Value = 600 pounds
The formula to find absolute error is:
Absolute Error = Actual value - Observed Value
                         = 639 - 600
                         = 39
The formula to find Percent error is:
Percent Error = (Actual value - Observed Value / Actual value)*100
                        = (639 - 600/639)*100
                        = 6.10%