Answer:
There are many solution for this problem
The solutions are -2, -3, -4..... And even fractions like -11/7, -12/7, etc.
Hope this helps!
 
        
                    
             
        
        
        
Hope this helps again! :)
 
        
             
        
        
        
Answer:
90:180, 135:270, 180:360
    
Step-by-step explanation:
 
        
             
        
        
        
Answer:
198 is the variance for the number of defective parts made each week.      
Step-by-step explanation:
We are given the following in the question:
Number of parts produced each week =  20,000
Percentage of defective parts = 1%
We have to calculate the variance for the number of defective parts made each week.
We treat defective part as a success.
P(Defective part) = 1% = 0.01

Then the number defective parts follows a binomial distribution
.
Formula for variance = 

Thus, 198 is the variance for the number of defective parts made each week.
 
        
             
        
        
        
Answer:
The answer is option D.
Step-by-step explanation:
cos M = adjacent / hypotenuse
From the picture
b is the adjacent
x is the hypotenuse
so
cos M = b/x
Hope this helps you