A Machinist Is Required to Manufacture a Circular Metal Disk $1000 \mathrm {~cm} ^ { 2 }$

question 110

Multiple Choice

A machinist is required to manufacture a circular metal disk with area $1000 \mathrm {~cm} ^ { 2 }$ . If the machinist is allowed an error tolerance of $\pm 15 \mathrm {~cm} ^ { 2 }$ in the area of the disk, how close to the ideal radius must the machinist control the radius?
Round your answer to the nearest hundred thousandth. Select the correct answer.

• A) \(\delta \leq 0.13131 \mathrm {~cm}\)
• B) \(\delta \leq 0.13281 \mathrm {~cm}\)
• C) \(\delta \leq 0.13231 \mathrm {~cm}\)
• D) \(\delta \leq 0.13331 \mathrm {~cm}\)
• E) \(\delta \leq 0.13431 \mathrm {~cm}\)

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