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2 years ago

Porsche’s mom told her to choose 3 crayons out if a box of 64 what is the probability she will choose red yellow and blue?

Mathematics

1 answer:

Delicious77 [7]2 years ago

7 0

Answer:

Step-by-step explanation:

It doesn't matter what order they are chosen in, so the numerator is 64C3.

The total number of ways that you can choose any 3 crayons is 64 * 63 * 62

P(r and y and b) = 64! / (62! 3!) // 64 * 63 * 62

P(r and y and b) = 64 * 63 * 62 / 6 // 64 * 63 * 62 = 41664 / 249984 = 0.167

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Step-by-step explanation:

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For this case we find the slopes of each of the lines:

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So, the slope is:

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So, the slope is:

$m = \frac {y_ {2} -y_ {1}}{x_ {2} -x_ {1}} = \frac {12-10} {2-9} = \frac {2} {- 7} = - \frac {2} {7}$

By definition, if two lines are parallel then their slopes are equal. If the lines are perpendicular then the product of their slopes is -1.

It is observed that lines g and h are not parallel. We verify if they are perpendicular:

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Answer:

The lines are perpendicular.

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