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max2010maxim [7]
3 years ago
10

50 POINTS FOR THE CORRECT ANSWER !!!!!!

Mathematics
2 answers:
Stels [109]3 years ago
5 0

Answer:

y = 9.8x + 6.7

y = 6.7x + 9.8

y = 7.5x + 3.8

y = 3.8x + 7.5

Step-by-step explanation:

I made 2represent x.

y= 9.8(2) + 6.7

y = 26.3

y=6.7(2) + 9.8

y= 23.2

y= 7.5(2) + 3.8

y= 18.8

y= 3.8(2) + 7.5

y= 15.1

Ludmilka [50]3 years ago
4 0

Answer:

y = 9.8x + 6.7

y = 7.5x + 3.8

y = 6.7x + 9.8

y = 3.8x + 7.5

Step-by-step explanation:

Let x be 10.

y = 7.5(10) + 3.8

y = 75 + 3.8

y = 78.8

y = 9.8(10) + 6.7

y = 98 + 6.7

y = 104.7

y = 3.8(10) + 7.5

y = 38 + 7.5

y = 45.5

y = 6.7(10) + 9.8

y = 67 + 9.8

y = 76.8

The output values all differ, arrange the sets in order from greatest rate of change to least rate of change.

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Answer:

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Step-by-step explanation:

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dem82 [27]

Answer:

62.17% probability that a randomly selected exam will require more than 15 minutes to grade

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 = 16.3, \sigma = 4.2

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This is 1 subtracted by the pvalue of Z when X = 15. So

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

Z = \frac{15 - 16.3}{4.2}

Z = -0.31

Z = -0.31 has a pvalue of 0.3783.

1 - 0.3783 = 0.6217

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