Answer:
c. Cluster sampling
Step-by-step explanation:
Taking into account that the exercise researcher is looking with limited resources to study a population that is divided, her best option is cluster sampling, which is a method applicable to this type of population, we could select in each group randomly her sample, the observational study is discarded because she does not have much availability of time or resources, nor would the stratified study be useful because she should select subgroups and create them to take samples and this would take more time and resources and sampling systematic is not adequate because it must have all the individuals and after having the list select the sample, but as we know, it is a process that will study the number of individuals so this option is not feasible.
 
        
                    
             
        
        
        
Divide top and bottom by four.
6/7 is the answer
        
                    
             
        
        
        
Answer:
2000
Step-by-step explanation:
In the equation, there is 0.02 attached to the x. This means multiplication. TO get rid of the 0.02, you need to do the opposite of multiplication. That is division.
Divide both sides by 0.02.


 
        
                    
             
        
        
        
Answer:
C. (0.9, 0.3)
Explanation:

The above given equation is critical to solve algebraically thus they have mentioned to solve it using a technology - graphing calculator.
<h3><u /></h3><h3><u>When graphed the following equations</u>:</h3>
They meet each other at: (0.9371, 0.2728)    (0.9, 0.3)
  (0.9, 0.3)
 
        
                    
             
        
        
        
Answer:
11 mi
Step-by-step explanation: