Answer:
Length of 18 cm long wire that must be trimmed to meet specifications can be at least 1.98 cm but not more than 2.02 cm
Step-by-step explanation:
Given: Length of copper wire should be 16 cm with a tolerance of 0.02 cm
To find: length of 18 cm long wire that must be trimmed to meet specifications
Solution:
As length of copper wire should be 16 cm with a tolerance of 0.02 cm, length of wire can be [tex]16+0.02=16.02\,cm\,,\,16-0.02=15.98\,cm[/tex]
In order to find length [tex]l[/tex] of wire that can be trimmed to meet specifications, solve the following:
[tex]18-16.02\leq l\leq 18-15.98\\1.98\leq l\leq 2.02[/tex]
So,
length of 18 cm long wire that must be trimmed to meet specifications can be at least 1.98 cm but not more than 2.02 cm
