Answer:
True. See explanation below
Step-by-step explanation:
Previous concepts
Analysis of variance (ANOVA) "is used to analyze the differences among group means in a sample".  
The sum of squares "is the sum of the square of variation, where variation is defined as the spread between each individual value and the grand mean"  
If we assume that we have  groups and on each group from
 groups and on each group from  we have
 we have  individuals on each group we can define the following formulas of variation:
 individuals on each group we can define the following formulas of variation:  
 
  
 
  
 
  
And we have this property  
 
  
The degrees of freedom for the numerator on this case is given by  where k represent the number of groups.
 where k represent the number of groups.  
The degrees of freedom for the denominator on this case is given by  .
.  
And the total degrees of freedom would be  
 
And the we can find the F statistic  
 
        
             
        
        
        
Answer:
<76
Step-by-step explanation:
Remark
You can't do this problem unless CD and E are all on the same line. If they are, then you can use || line properties. 
Properties
<ABG = x                       Given
<ABG = <BGF               Alternate interior angles are equal.
<BGF = x                       Substitute
x + 2x - 9 = 180             Consecutive angles in a ||gram equal 180 degrees. 
3x - 9 = 180                    Add 9 to both sides
3x - 9 +9 = 180 +9
3x = 189                         Divide by 3
x = 63
<DHG = 2x - 50            Given
<DHG = 2*63 - 50         Substitute for x
<DHG = 76
<IDC  = 76
<DHG and <IDC are corresponding angles and are equal; it is a property of parallel lines.
 
        
             
        
        
        
Answer:
6720 ft³
Step-by-step explanation:
Volume =  * base * height * length
 * base * height * length 
Here the base is 14 ft, height is 24 ft and length is 40 ft
using the formula:
  * 14* 24* 40
 * 14* 24* 40
6720 ft³
 
        
                    
             
        
        
        
Answer:
it is correct they weigh the same
Step-by-step explanation:
 
        
             
        
        
        
Answer: -2d+3
Step-by-step explanation: