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tatyana61 [14]
3 years ago
10

A geometry class is asked to find the equation of a line that is parallel to y – 3 = −(x + 1) and passes through (4, 2). Trish s

tates that the parallel line is y – 2 = –1(x – 4). Demetri states that the parallel line is y = –x + 6. Are the students correct? Explain. Trish is the only student who is correct; the slope should be –1, and the line passes through (4, 2). Demetri is the only student who is correct; the slope should be –1, and the y-intercept is 6. Both students are correct; the slope should be –1, passing through (4, 2) with a y-intercept of 6. Neither student is correct; the slope of the parallel line should be 1.
Mathematics
2 answers:
Vikki [24]3 years ago
7 0

Answer:

C is correct

Step-by-step explanation:

took the test

iragen [17]3 years ago
4 0
C or the third option, Both students are correct; the slope should be –1, passing through (4, 2) with a y<span>-intercept of 6.</span>
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Answer:

IQ score of 102.55

Step-by-step explanation:

Problems of normally distributed samples can be 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, which is also the shaded area under the curve, 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 = 100, \sigma = 15

The shaded area under the curve is 0.5675.

This means that Z has a pvalue of 0.5675.

So, we have to find X when Z = 0.17.

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

0.17 = \frac{X - 100}{15}

X - 100 = 15*0.17

X = 102.55

IQ score of 102.55

8 0
3 years ago
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Answer:

3,564

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