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3 years ago

Find the equation of the lines through the origin and at right angle to lines x^2-5xy+4y^2

Mathematics

1 answer:

dezoksy [38]3 years ago

7 0

Answer:

x^2-5xy+4y^2

x^2-2+3+4y^2

x=1

again

x=5

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Question 18 Item 18 The distribution of the number of moths captured per night by a certain moth trap is approximately normal wi

juin [17]

Answer:

Standard deviation 46.3

Step-by-step explanation:

A 28% of the distribution is equivalent to a z score of -0.5828, you can use a z table to find that.

Z score is calculated as follows:

$z = \frac{x-\mu}{\sigma}$

x is the number being evaluated

μ is the mean

σ is the standard deviation

And it is used to calculate how many standard deviations you are from the mean of the sample.

Replacing with the known information you can calculate the standard deviation:

$\sigma=\frac{x-\mu}{z} =\frac{76-103}{-0.5828}= 46.3$

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3 years ago

Do we have to multiply???

defon

Answer:

Step-by-step explanation:

mulyiplying is for finding out the area

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2 years ago

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Free_Kalibri [48]

Answer:

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Step-by-step explanation:

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2 years ago

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NeTakaya

Answer:

53 miles per hour

Step-by-step explanation:

It makes sense that speed = distace/ time

Therefore, you need to divide 212 by 4 = 53

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3 years ago

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Fantom [35]

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3 years ago

Find the equation of the lines through the origin and at right angle to lines x^2-5xy+4y^2​

Find the equation of the lines through the origin and at right angle to lines x^2-5xy+4y^2