Given:
The frequency distribution table.
To find:
The mean average score on a test.
Solution:
The frequency distribution table is
 
                    
                  
      x                                     a                               xa
      y                                     b                               yb
      z                                     c                               zc
   Sum                              a+b+c                          xa+yb+zc
Now, the mean average score on the test is


Therefore, the mean average score on the test is  .
.
 
        
             
        
        
        
Answer:
2.8- 4.4n- 2n + 7 = -6.4n + 9.8
Step-by-step explanation:
combined like term:
-4.4n - 2n = -6.4n
2.8 + 7 = 9.8
so all you do is combined together and got -6.4n + 9.8 
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
When we have a number to a fraction power, we need to note that
- It's the same as taking the denominator root of the base to the numerator power
Basically, for example,  is the same as
 is the same as  since the numerator is 1 (
 since the numerator is 1 ( ) and the denominator is 2 (
) and the denominator is 2 ( ).
).
Applying this same logic to  -
 - 


Hope this helped!
 
        
                    
             
        
        
        
<span>y=34x−52
34x - y - 52 = 0</span>