Answer:
15x + 10
Step-by-step explanation:
5(3x + 2)
15x + 10
 
        
                    
             
        
        
        
Answer:  b) 84
 
Step-by-step explanation:
Let p be the prior estimate of the required proportion.
As per given , we have
p =0.5   (The probability of getting heads on a fair coin is 0.5)
Significance level : 
Critical z-value (using z-value table ) : 
Confidence interval width : w= 0.18
Thus , the margin of error : 
Formula to find the sample size ( if prior estimate of proportion is known.):-

Substitute the values , we get

Simplify ,
 [Round of to the next whole number.]
  [Round of to the next whole number.]
Hence, the number of times we would have to flip the coin =<u>84</u>
hence, the correct answer is b) 84
 
        
             
        
        
        
Answer:
16
Step-by-step explanation:
16 (2x + y - 3)
 
        
             
        
        
        
Answer:
Answer is 80.36
Step-by-step explanation:
V=πr2h=π·2.12·5.8≈80.35566
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