Solve
-The Radius R of a Plastic Tube Used in Manufacturing

question 94

Multiple Choice

Solve.
-The radius r of a plastic tube used in manufacturing a child's toy must not differ from the standard s by more than 5 millimeters. The manufacturing engineers express this as |r - s| ≤5. If the standard s is 33, solve the inequality for the radius r. Express the answer in set-builder notation.

• A) \(\{ \mathrm { r } \mid 23 \leq \mathrm { r } \leq 28 \}\)
• B) \(\{ \mathrm { r } \mid 28 \leq \mathrm { r } \leq 38 \}\)
• C) \(\{ \mathrm { r } \mid \mathrm { r } \leq 28\) or \(\mathrm { r } \geq 38 \}\)
• D) \(\{ \mathrm { r } \mid \mathrm { r } \leq 23\) or \(\mathrm { r } \geq 28 \}\)

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Endorser

Signature on the back of the check of the payee.

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An act of giving one's public approval or support to someone or something, often used in contexts of advertisements or political backing.

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