Answer:
The large sample n = 190.44≅190
The  large  sample would be required in order to estimate the fraction of people who black out at 6 or more Gs at the 85% confidence level with an error of at most 0.04 is n = 190.44
<u>Step-by-step explanation</u>:
Given  population proportion was estimated to be 0.3
p = 0.3
Given maximum of error E = 0.04
we know that maximum error 

The 85% confidence level 


now calculation , we get 
 √n=13.80
now squaring on both sides n = 190.44
large sample n = 190.44≅190
<u>Conclusion</u>:-
Hence The  large  sample would be required in order to estimate the fraction of people who black out at 6 or more Gs at the 85% confidence level with an error of at most 0.04 is n = 190.44
 
        
             
        
        
        
Answer:
See Below. 
Step-by-step explanation:
We are given that ΔAPB and ΔAQC are equilateral triangles. 
And we want to prove that PC = BQ. 
Since ΔAPB and ΔAQC are equilateral triangles, this means that: 

Likewise: 

Since they all measure 60°.
Note that ∠PAC is the addition of the angles ∠PAB and ∠BAC. So: 

Likewise: 

Since ∠QAC ≅ ∠PAB: 

And by substitution: 

Thus: 

Then by SAS Congruence: 

And by CPCTC: 

 
        
                    
             
        
        
        
Answer:
1
Step-by-step explanation: