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Roman55 [17]
3 years ago
8

Henry measured a line to be 7.8 inches long. If the actual length of the line is 7.4 inches, then what was the percent error of

the measurement, to the nearest tenth of a percent?
Mathematics
1 answer:
Margarita [4]3 years ago
3 0
The percent error of the measurement is 5.4%
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Answer:

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Step-by-step explanation:

The volume of a prism is given by the formula ...

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where B is the area of the base, and h is the distance between bases.

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<h3>base area</h3>

Here, the base of the prism is a rectangle with a semicircle on top. The circle has a diameter of 9 mm, so a radius of 4.5 mm. The area of the semicircle is ...

  A = 1/2πr² = 1/2π(4.5 mm)² ≈ 31.809 mm²

The area of the rectangle is the product of its length and width.

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<h3>prism volume</h3>

The prism volume is this area multiplied by the length of the figure:

  V = Bh = (85.809 mm²)(11 mm) ≈ 944 mm³

The volume of the figure is about 944 mm³.

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