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D 
a number times itself don't equals 184 
11×11= 121
12×12=144
13×13=169
        
                    
             
        
        
        
Answer:
For this case we want to test if the the average monthly income of all students at college is at least $2000. Since the alternative hypothesis can't have an equal sign thne the correct system of hypothesis for this case are:
Null hypothesis (H0): 
Alternative hypothesis (H1): 
And in order to test this hypothesis we can use a one sample t or z test in order to verify if the true mean is at least 200 or no
Step-by-step explanation:
For this case we want to test if the the average monthly income of all students at college is at least $2000. Since the alternative hypothesis can't have an equal sign thne the correct system of hypothesis for this case are:
Null hypothesis (H0): 
Alternative hypothesis (H1): 
And in order to test this hypothesis we can use a one sample t or z test in order to verify if the true mean is at least 2000 or no
 
        
             
        
        
        
The product of any number and its reciprocal is ' 1 '.
Call the number  ' Q '.
Whatever the number is, its reciprocal is  1/Q .
Their product is  
                             ( Q ) x ( 1/Q )  =  ( Q/Q )  =   1