Answer:
I'm guessing the right answer should be B
 
        
             
        
        
        
Using the z-distribution, as we are working with a proportion, it is found that 1016 constituents are required.
<h3>What is a confidence interval of proportions?</h3>
A confidence interval of proportions is given by:

In which:
 is the sample proportion. is the sample proportion.
The margin of error is given by:

In this problem, we have a 95% confidence level, hence , z is the value of Z that has a p-value of
, z is the value of Z that has a p-value of  , so the critical value is z = 1.96.
, so the critical value is z = 1.96.
The estimate is of  , while the margin of error is of M = 0.03, hence solving for n we find the minimum sample size.
, while the margin of error is of M = 0.03, hence solving for n we find the minimum sample size.






Rounding up, 1016 constituents are required.
More can be learned about the z-distribution at brainly.com/question/25890103
 
        
             
        
        
        
Answer:
x = -8
Step-by-step explanation:
Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. 
First, subtract 12 from both sides: 
3x + 12 (-12) = -12 (-12)
3x = -12 - 12
3x = -24
Next, divide 3 from both sides: 
(3x)/3 = (-24)/3
x = -24/3
x = -8
x = -8 is your answer.
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