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Virty [35]
3 years ago
13

When graphing a line, what are the y-intercept equations for 2 perpendicular lines?

Mathematics
1 answer:
Savatey [412]3 years ago
3 0
Say you have 2 perpendicular lines that are:

y=2x+2

y=- \frac{1}{2} -2

These lines are perpendicular because the slope is the negative reciprocal(flip the numerator and denominator EX: \frac{2}{1}=2 therefore the negative reciprocal is - \frac{1}{2}) and the y-intercept is just where each of the lines cross the y-axis.
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Here are the heights in inches of 10 professional basketball players: 66, 74, 76, 77, 78, 79, 80, 80, 82, 84. The mean of these
Dvinal [7]

Answer:

Question 4: The set has 66 as an outlier and removing it increases the mean by about 1.3 inches.

Question 5: The set has 50 as an outlier and removing it increases the mean by about 3.

Step-by-step explanation:

<u>Question 4:</u><u> </u>

Given heights are:

66, 74, 76, 77, 78, 79, 80, 80, 82, 84

The mean is: 77.6 inches

Removing 66 will make the mean increase to 78.9

So,

<u>The set has 66 as an outlier and removing it increases the mean by about 1.3 inches.</u>

<u>Question 5:</u>

50, 74, 76, 77, 78, 79, 80, 80, 82, 84

The mean is 76.

We can clearly see that 50 is an outlier as it is quite less than the given data.

Calculating mean after removing 50 will give us mean equal to 78.9

So the correct answer is:

<u>The set has 50 as an outlier and removing it increases the mean by about 3.</u>

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2 years ago
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Black_prince [1.1K]
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What expression is equivalent to the expression 2(6y-4)
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Answer:

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Step-by-step explanation:

If you distribute the 2 you will 12y-8

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Well, some integers can be irrational, but not all! :) 
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