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2 years ago

Please help i dont know the answer

Mathematics

1 answer:

Talja [164]2 years ago

5 0

9514 1404 393

Answer:

4 units
4 units

Step-by-step explanation:

Point E will be on the same vertical line (x = n) as point D. So, the distance between points D and E will be the difference of their y-values:

2 - (-2) = 4 . . . units from D to E

Points C and D appear to be on the same horizontal line (y = -2), The distance between them is the same as the distance between D and E (4 units). So, the distance between C and D will be the difference of x-coordinates:

n -0 = 4

This means n = 4 units.

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What’s 706 divided by 0363

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706 ÷ 0363
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2 years ago

Factor Completely: 3x2 + 9x - 30

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Answer:

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Step-by-step explanation:

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2 years ago

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2 years ago

Read 2 more answers

9. Gold miners in Alaska have found, on average, 12 ounces of gold per 1000 tons of dirt excavated with a standard deviation of

netineya [11]

Answer:

9.18% probability the miners find more than 16 ounces of gold in the next 1000 tons of dirt excavated

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 12, \sigma = 3$

What is the probability the miners find more than 16 ounces of gold in the next 1000 tons of dirt excavated?

This is 1 subtracted by the pvalue of Z when X = 16. So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{16 - 12}{3}$

$Z = 1.33$

$Z = 1.33$ has a pvalue of 0.9082

1 - 0.9082 = 0.0918

9.18% probability the miners find more than 16 ounces of gold in the next 1000 tons of dirt excavated

5 0

2 years ago

Will give brainliest!!

Inessa05 [86]

It’s actually B Bc the little 1 by the 10 is meaning that you are gonna multiply 10x10 one time. Then multiply by 7. 10x10=100 100x7=700 so there for your answer is B

4 0

2 years ago