SOLUTION: abs(x-0.004)< or equal to 0.003 Which could be represented by this inequality 1) The thickness of a cylindrical copper wire should exceed 0.044 inch by at least 0.003 inch

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Question 1020962: abs(x-0.004)< or equal to 0.003
Which could be represented by this inequality
1) The thickness of a cylindrical copper wire should exceed 0.044 inch by at least 0.003 inch
2)The index of refraction of a glass lens should be above or below 0.044 by at least 0.003
Answer by KMST(5328) About Me  (Show Source):
You can put this solution on YOUR website!
I think you have typos (as in more the one).
As posted, the answer is neither 1) nor 2)
abs%28x-0.004%29%3C=0.003<-->-0.003%3C=x-0.004%3C=0.003<-->0.001%3C=x%3C=0.007

"The thickness of a cylindrical copper wire should exceed 0.044 inch by at least 0.003 inch" (with x= thickness in inches) translates as
x-0.044%3E=0.003<-->x%3E=0.047 .

"The index of refraction of a glass lens should be above or below 0.044 by at least 0.003" (with x= index of refraction) translates as
abs%28x-0.044%29%3E=0.003<-->system%28x%3C=0.041%2C%22or%22%2Cx%3E=0.047%29 .

The answer could be
3) The index of refraction of a glass lens (or thickness of a cylindrical copper wire in inches) should be above or below 0.004 by no more than 0.003 ,
or
4) The index of refraction of a glass lens (or thickness of a cylindrical copper wire in inches) should be within 0.003 of 0.004.