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Naddika [18.5K]
3 years ago
7

Can someone please help me on this question

Mathematics
2 answers:
Mama L [17]3 years ago
5 0

Answer:

m cm3

n= cm2df

Step-by-step explanation:

Simora [160]3 years ago
5 0
Someone answered it and i think they’re right
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Explain what percent of a dollar a quarter, 2 nickles, a dime and three pennies are
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Find value
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total is
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48 out of 100 cents
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the answer is 48%
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Bailey company purchased a new delivery truck for $35,000. the sales tax was $2,000. the logo of the company was painted on the
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A worn, poorly set-up machine is observed to produce components whose length X follows a normal distribution with mean 14 centim
Akimi4 [234]

Answer:

74.86% probability that a component is at least 12 centimeters long.

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 = 14

Variance is 9.

The standard deviation is the square root of the variance.

So

\sigma = \sqrt{9} = 3

Calculate the probability that a component is at least 12 centimeters long.

This is 1 subtracted by the pvalue of Z when X = 12. So

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

Z = \frac{12 - 14}{3}

Z = -0.67

Z = -0.67 has a pvalue of 0.2514.

1-0.2514 = 0.7486

74.86% probability that a component is at least 12 centimeters long.

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3 years ago
There were 214 people at a concert. Main floor tickets cost $17 and balcony tickets cost $11 for a total of $2954. How may balco
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There is 100 $17 tickets no 114 $11 tickets
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