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Shalnov [3]
3 years ago
9

an earthquake can be felt 70 miles from its epicenter if someone is standing 50 miles east and 20 miles north of the epiccenter

will they be able to feel the eacrthquake? and explain your reasoning for why they would or would not be able to feel it.
Mathematics
2 answers:
anzhelika [568]3 years ago
6 0

Answer:

You Would Feel It Faint Because Of Earthquakes Are Loud Rumbles Not Matter How far

Step-by-step explanation:

Dmitriy789 [7]3 years ago
4 0
You would feel it because you would be roughly 54 miles from the epicentre according to Pythagoras's theorem- within the 70 mile radius
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Using a pair of compass only construct a triangle ABC such that AB=9cm, angle BAC=60° and angle ABC=45°
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Answer:

AC=5.4 BC=7.2

Step-by-step explanation

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Give a 98% confidence interval for one population mean, given asample of 28 data points with sample mean 30.0 and sample standar
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We have a sample of 28 data points. The sample mean is 30.0 and the sample standard deviation is 2.40. The confidence level required is 98%. Then, we calculate α by:

\begin{gathered} 1-\alpha=0.98 \\ \alpha=0.02 \end{gathered}

The confidence interval for the population mean, given the sample mean μ and the sample standard deviation σ, can be calculated as:

CI(\mu)=\lbrack x-Z_{1-\frac{\alpha}{2}}\cdot\frac{\sigma}{\sqrt[]{n}},x+Z_{1-\frac{\alpha}{2}}\cdot\frac{\sigma}{\sqrt[]{n}}\rbrack

Where n is the sample size, and Z is the z-score for 1 - α/2. Using the known values:

CI(\mu)=\lbrack30.0-Z_{0.99}\cdot\frac{2.40}{\sqrt[]{28}},30.0+Z_{0.99}\cdot\frac{2.40}{\sqrt[]{28}}\rbrack

Where (from tables):

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