Answer:
it is C. 
Step-by-step explanation:
trust me, i dont have time to expln how, it jst is 
 
        
                    
             
        
        
        
Answer:
        Age                               Frequency                   Cumulative Frequency
  Less than 30                             27                                       27
  Less than 40                             37                                27 + 37  =  64
  Less than 50                              1 1                                 64 + 11   =  75
  Less than 60                               3                                  75 + 2   =  77
  Less than 70                               5                                   77 + 5   =  82
  Less than 80                               1                                     82 + 1  =  83
  Less than 90                              2                                    83 +2  =  85
Step-by-step explanation:
Given:
The Frequency Distribution table of ages of best actresses when award was won 
To find:
Construct the cumulative frequency distribution
Solution:
In order to construct cumulative frequency distribution for the given data, each frequency from above table is added to the sum of the previous frequencies. For example, frequency for Less than 40  is 37 and the previous frequency (less than 30) is 27 so in order to calculate cumulative frequency 27 i.e. previous frequency is added to 37 (frequency of less than 30). The complete table is given above. 
 
        
             
        
        
        
9 + x > (equal to or greater than) 15
6 more students need to sign up because 15-9=6
        
             
        
        
        
Answer:
Therefore 'x' is equal to 65.4°
Step-by-step explanation:
In Right Angle Triangle ABC
∠ B = 90°
AC = Hypotenuse = 12 
CB = Adjacent Side = 5
To Find:
∠ C = x
Solution:
In Right Angle Triangle ABC Cosine Identity we have

Substituting the values we get


Therefore 'x' is equal to 65.4°
 
        
             
        
        
        
Answer:
a. addition property of Equality