The lines below are parallel. if the slope of the green line is -3 what is the line of the red line

Mathematics

2 answers:

n200080 [17]3 years ago

8 0

Since they are parallel they have the same slope, thus the slope of the red line is -3.

coldgirl [10]3 years ago

7 0

If two lines are parallel, their slopes are equal. Thus, the slope of the red line is also -3.

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Answer:

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Step-by-step explanation:

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$CI=(\bar x_{1}-\bar x_{2})\pm z_{\alpha/2}\times \sqrt{\frac{\sigma^{2}_{1}}{n_{1}}+\frac{\sigma^{2}_{2}}{n_{2}}}$

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Thus, the 98% confidence interval for the true difference between testing averages for students using Method 1 and students using Method 2 is (-8.04, 0.84).

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