The surface area formula is 4 x pi x r^2
 
        
        
        
Answer:
I am not able to answer your question because I am unsure of what to solve for. :/
Step-by-step explanation:
 
        
             
        
        
        
Answer:  Choice B
There is not convincing evidence because the interval contains 0.
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Explanation:
The confidence interval is (-0.29, 0.09)
This is the same as writing -0.29 < p1-p1 < 0.09
The thing we're trying to estimate (p1-p2) is between -0.29 and 0.09
Because 0 is in this interval, it is possible that p1-p1 = 0 which leads to p1 = p2.
Therefore, it is possible that the population proportions are the same. 
The question asks " is there convincing evidence of a difference in the true proportions", so the answer to this is "no, there isn't convincing evidence". We would need both endpoints of the confidence interval to either be positive together, or be negative together, for us to have convincing evidence that the population proportions are different.
 
        
             
        
        
        
You do 390/100 = 180/x then 390×X=390X
180×100=18000
390X=18000
390X÷390=X
18000÷390=46.15384615=46%
        
                    
             
        
        
        
They lost -17 bc they lost -3 yards the first game and then -14 the second