The volume of a rectangular prism is 144ft3. Alex measures the sides to be 2.63ft by 7.54ft by 6.13ft. In calculating the volume, what is the relative error, to the nearest thousandth.Answer:
Q. The volume of a rectangular prism is 144ft3. Alex measures the sides to be 2.63ft by 7.54ft by 6.13ft. In calculating the volume, what is the relative error, to the nearest thousandth.Answer:
Given information: Given the volume of the rectangular prism is 144 cubic feet, and Alex measures the sides to be 2.63 feet, 7.54 feet, and 6.13 feet. To find the relative error, we first need to calculate the volume using Alex's measurements.
Calculate volume: Calculate the volume using Alex's measurements: Volume=length×width×height.Volumecalculated=2.63ft×7.54ft×6.13ft.Volumecalculated=121.6742ft3.
Find absolute error: Now, we find the absolute error by subtracting the actual volume from the calculated volume.Absolute error = ∣Volumeactual−Volumecalculated∣.Absolute error = ∣144 ft3−121.6742 ft3∣.Absolute error = 22.3258 ft3.
Find relative error: To find the relative error, we divide the absolute error by the actual volume and then multiply by 100 to get the percentage.Relative error = (Absolute error/Volumeactual)×100.Relative error = (22.3258 ft3/144 ft3)×100.Relative error = 0.1550395833×100.Relative error = 15.50395833%.
Round relative error: Finally, we round the relative error to the nearest thousandth.Relative error (rounded) = 15.504%.
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