Area of ∆=1/2bh
 80yd^2=1/2(b)(10yd)
 80yd^2=5yd(b)
 80yd^2÷5yd=b
 16yd=b
        
             
        
        
        
Honestly? Just review your notes and try to work out the problems yourself before taking a look at the answer. You can also google specific topics that the test will cover and try the practice problems.
 
        
                    
             
        
        
        
The values cannot be labeled as dependent or independent without a givin equation
        
                    
             
        
        
        
Answer:
(4, 7/2)
Step-by-step explanation:
Take the mean of the x-coordinates and the mean of the y-coordinates.
x = (-1 + 9)/2 = 8/2 = 4
y = (2 + 5)/2 = 7/2
Answer: (4, 7/2)
 
        
             
        
        
        
What is your question hunn