put the varible on the shaded half
 
        
                    
             
        
        
        
(+8)+(-9) 
the answer is -1
        
                    
             
        
        
        
2. random samples are the least biased samples.
        
             
        
        
        
Answer: 52.5 units squared
Step-by-step explanation:
The formula to find the area of a trapezoid is, (base1 + base2)/2 * height
So you find out which variable is which
Base 1 = 4
Base 2 = 3
Height = 15
Then plug it into the formula,
(4+3)/2 * 15
Then solve the order of operations
7/2 * 15
3.5 * 15
52.5 is the answer
 
        
                    
             
        
        
        
Answer:
the answer is- g= 72/d minus f/d