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2 years ago

Find the distance between (−3, 8) and (4, 1). Round your answer to the nearest tenth.

Mathematics

2 answers:

AnnyKZ [126]2 years ago

8 0

Answer:

$7\sqrt{2}$ to the nearest tenth would be, 9.9

Step-by-step explanation:

Use distance formula:

(-3-4)^2 + (8-1)^2 all under square root.

49 + 49

$\sqrt{98\\$

Which simplifies to 7 $\sqrt{2\\}$

Hope this helps,

Feel free to mark this brainliest! :)

Leokris [45]2 years ago

4 0

the answer is 5.099 rounded too 5.1

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Answer:

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Step-by-step explanation:

Given that:

Mean $\mu$ = 75

Variance $\sigma^2 =961$

The standard deviation $\sigma = \sqrt{961} = 31$

The sample size n = 100

$\mu = \mu_{\overline x} = 75$

$\sigma _{\overline x} = \dfrac{\sigma }{\sqrt{n}}$

$\sigma _{\overline x} = \dfrac{31 }{\sqrt{100}}$

$\sigma _{\overline x} = \dfrac{31 }{10}}$

$\sigma _{\overline x} = 3.1$

$P(\overline x > 83.7) = 1 - P( \overline x < 83.7)$

$P(\overline x > 83.7) = 1 -P\bigg ( \dfrac{\overline x - \mu_{\overline x} }{\sigma _{\overline x}} < \dfrac{83.7 - 76}{3.1} \bigg)$

$P(\overline x > 83.7) = 1 -P\bigg ( Z< \dfrac{7.7}{3.1} \bigg)$

$P(\overline x > 83.7) = 1 -P ( Z< 2.48)$

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P(x > 83.7) = 1 - 0.9934

P(x > 83.7) = 0.0066

Thus, probability = 0.0066

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3 years ago

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Answer:

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Step-by-step explanation:

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n=112

Therefore, 112 years ago

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