The absolute value equation representing the length of the nail is : 
A nail of length 1.05 inches is unacceptable 
Actual Length of nail = 1 inch 
Allowable variation = 1/32 inches 
The minimum allowable length :
actual length - allowable variation 
The maximum allowable length : 
Actual length + allowable variation 
The length of X, of the nail must be follow the equation :
Minimum ≤ X ≤ maximum 

A nail of length 1.05 inches 
Maximum nail length = 1 1/32 = 1.031 
1.05 > 1.031 ; hence, it is greater than the maximum allowable length and hence, Unacceptabe 
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