<PRE><B>Question 1123482</B>
the length must be within plus or minus .25 mm of 125 mm.


if x is the length of the case, then:


absolute value of (x - 125) must be &lt;= .25


this is shown as |x - 125| &lt;= .25


when the expression within the absolute value sign is positive, the expression becomes (x - 125) &lt;= .25
add 125 to both sides of this inequality to get:
x &lt;= 125 + .25 = 125.25


when the expression within the asbolute value sign is negative, the expression becomes (x - 125) &gt;= -.25
add 125 to both sides of this inequality to get:
x &gt;= 125 - .25 = 124.75


the manufactured case must have a length that is greater than or equal to 124.75 mm and less than or equal to 125.25 mm.


otherwise it is removed from the inventory.


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