Answer:
30
Step-by-step explanation:
Since you know all the angles have to add up to 180 degrees, you add 102 and 48. That is 150. 180 degrees-150 degrees equals 30 degrees.
 
        
                    
             
        
        
        
Answer:
49
Step-by-step explanation:
cos(x)=31/47
x=cos^-1 (31/47)
 
        
                    
             
        
        
        
Answer:
10n+10
Step-by-step explanation:
7n-7n+5n2+10
5n2+10
5n*2+10
10n+10
Hope this helps :D
#Team Rainbows
 
        
             
        
        
        
On September  25.2014 Colson Corp. sold 200.000 widgetrons for 5$ per unit. 
200.000*5$=1.000.000$. Same day company was paid for 40% which is 400.000$.
The rest of the money he get paid in two equal parts on November 15.2014 and January 20.2015. So Calson Corp. was paid 300.000$ on November 15.2014 and 300.000$ on January 20.2015. 
        
             
        
        
        
Answer:
Mean = 113.72 
The estimator of 113.72 is point estimate used for the  conceptual population of all first-graders in this school
Step-by-step explanation:
Data provided in the question:
Data:
82 96 99 102 103 103 106 107 108 108 108 108 109 110 110 111 113 113 113 113 115 115 118 118 119 121 122 122 127 132 136 140 146
Number of data = 33
In the hint it is also given that the sum of the data value i.e ∑x = 3753
Now,
Point estimate of mean is given as;
Mean =  
or
⇒ Mean =  
or
⇒ Mean = 113.72 
Hence,
The estimator of 113.72 is point estimate used for the  conceptual population of all first-graders in this school