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anzhelika [568]
3 years ago
12

Which is the best approximate solution of the system of linear equations y = 1.5x – 1 and y = 1?

Mathematics
2 answers:
Ad libitum [116K]3 years ago
8 0

the correct answer is: B

kolbaska11 [484]3 years ago
7 0
1 = 1.5x - 1
1 + 1 = 1.5x
2 = 1.5x
2/1.5 = x
1.33 = x

solution is : (1.33,1)
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Step-by-step explanation:

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Suppose you have a random variable that is uniformly distributed between 1 and 29. what is the expected value for this random va
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Assuming the distribution is continuous, you have

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The travel time on a section of a Long Island Expressway (LIE) is normally distributed with a mean of 80 seconds and a standard
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Answer:

The travel time that separates the top 2.5% of the travel times from the rest is of 91.76 seconds.

Step-by-step explanation:

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

Mean of 80 seconds and a standard deviation of 6 seconds.

This means that \mu = 80, \sigma = 6

What travel time separates the top 2.5% of the travel times from the rest?

This is the 100 - 2.5 = 97.5th percentile, which is X when Z has a p-value of 0.975, so X when Z = 1.96.

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

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The travel time that separates the top 2.5% of the travel times from the rest is of 91.76 seconds.

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2 years ago
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Answer:

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Mekhanik [1.2K]

Answer:

y = 1/2x + 3

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