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NISA [10]
2 years ago
6

An ice skating competition features 8 skaters. How many different ways can the skaters finish the competition? how many differen

t ways can 3 of the skaters finish first, second and third?.
SAT
1 answer:
yan [13]2 years ago
8 0

The number of ways the skaters can finish the competition is 40,320 ways

The different ways 3 of the skaters finish first, second and third is 56 ways

Given the following

  • Number of skaters featured = 8 skaters

If the skaters finish the competition, the number of different ways the skaters finish the competition is expressed as:

8! = 8*7*6*5*4*3*2

8! = 56*30*24

8! = 40,320.

The number of ways the skaters can finish the competition is 40,320 ways

If 3 of the skaters finish first, second and third, the number of ways this can be done is given as:

8C3 = 8!/(8-3)!3!

8C3 = 8!/5!3!

8C3 = 8*7*6*5!/5!3!

8C3 = 56 ways

Hence the different ways 3 of the skaters finish first, second and third is 56 ways

Learn more on combination here: brainly.com/question/11732255

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To calculate the distance of the object from the mirror, we make use of the mirror formula

<h3>Mirror formula</h3>
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Where:

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Using the real is positive convention,

Given:

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Substitute these values into equation 1 and solve for u

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