2 years ago

-4+7P4 evaluate the permutation PLEASE HELP

1 answer:

6 0

Answer:

7P3=7*6*5=210 ans.

Step-by-step explanation:

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EastWind [94]

Answer is c as x is 25/2

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lawyer [7]

I believe 3b/6a which could reduce to b/3a.

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Dmitriy789 [7]

Answer: 37

Step-by-step explanation: 14 x 3 = 42

42 - 5 = 37

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murzikaleks [220]

Answer: Option a) 3

Step-by-step explanation:

The formula for calculating combinations is as follows

$nCr = \frac{n!}{r!(n-r)!}$

Where "n" is the amount of items in a set and you can choose "r" from them

3C1 reads as: The combination of 1 in 3. You have a set of 3 elements and choose 1 of them.

$n = 3\\\\r = 1$

So :

$3C1=\frac{3!}{1!(3-1)!}\\\\3C1=\frac{3!}{1!*2!}\\\\3C1=\frac{3*2*1}{1*2*1}\\\\3C1=3$

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2 years ago