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Liono4ka [1.6K]
2 years ago
8

a sculpture an art museum is in the shape of a triangular pyramid the area of the base of the sculpture is 15 square meters and

it has a height of 10 meters

Mathematics
1 answer:
strojnjashka [21]2 years ago
4 0
Volume = 2×7×3.5 = 49 feet3
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Explain how you can approximate a cube root when the cube is not a perfect cube.
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See below.

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A confidence interval was used to estimate the proportion of statistics students that are female. A random sample of 72 statisti
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We need a sample of size at least 13.

Step-by-step explanation:

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95% confidence level

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Using the information above, what size sample would be necessary if we wanted to estimate the true proportion to within ±0.08 using 95% confidence?

We need a sample of size at least n.

n is found when M = 0.08. So

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.08 = 1.96\sqrt{\frac{0.54*0.46}{n}}

0.08\sqrt{n} = 1.96\sqrt{0.54*0.46}

\sqrt{n} = \frac{1.96\sqrt{0.54*0.46}}{0.08}

(\sqrt{n})^{2} = (\frac{1.96\sqrt{0.54*0.46}}{0.08})^{2}

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Rounding up

We need a sample of size at least 13.

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2 years ago
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