Multiple Choice

An HVAC technician is reviewing the technical specifications for a square ventilation duct. The documentation states the cross-sectional area of the duct is 16n216n^2 square inches. To determine the side length needed for a matching vent cover, the technician must recall the simplified expression for 16n2\sqrt{16n^2}. Which of the following is the correct simplified form?

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Updated 2026-04-20

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