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iragen [17]
3 years ago
15

If the graphs of two linear functions are perpendicular, describe the relationship between the slopes and the y-intercepts.

Mathematics
2 answers:
Dafna1 [17]3 years ago
7 0

The answer is A, the slopes are equal.

the relationship is b neg. rec.

c no relationshipin y-int.

Rom4ik [11]3 years ago
3 0

The relationship between slopes of two perpendicular lines is B, The slopes are negative reciprocals of one another. The y-intercepts have C, no relationship. To help with this, you can imagine perpendicular lines on a graph.

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A forester studying the effects of fertilization on certain pine forests in the Southeast is interested in estimating the averag
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P(-2 \leq \bar X -\mu \leq 2)

If we divide both sides by \frac{\sigma}{\sqrt{n}} we got:

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And we can use the normal distribution table or excel to find the probabilites and we got:

P(-1.5 \leq Z \leq 1.5)= P(ZStep-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

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X \sim N(M,4)  

Where \mu=M and \sigma=4

We select a a sample of n =4 and since the distribution for X is normal then we know that the distribution for the sample mean \bar X is given by:

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If we divide both sides by \frac{\sigma}{\sqrt{n}} we got:

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