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kondaur [170]
3 years ago
9

10. Create a scenario to explain why 3P3=3!.

Mathematics
2 answers:
kozerog [31]3 years ago
6 0

Answer: Assuming we are to determine the number of distinct 3 letter groupings we can form from the letter "ABC''

without repetition of letter.

This is a permutation case and can be solved as

N = 3P3 = 3!/(3-3)!

N = 3!/0! note: 0! = 1

N = 3!

Therefore N = 3P3 = 3!

Step-by-step explanation:

permutation is the act of arranging the members of a set into a sequence or order( in permutation order is important)

Permutation can be defined as;

nPr = n!/(n-r)!

For 3P3

Assuming we are to determine the number of distinct 3 letter groupings we can form from the letter "ABC''

without repetition of letter.

This is a permutation case and can be solved as

N = 3P3 = 3!/(3-3)!

N = 3!/0! note: 0! = 1

N = 3!

Therefore N = 3P3 = 3!

Flauer [41]3 years ago
3 0

Step-by-step explanation:

Permutation :The number of ways to choose a sample of r elements from a set of n distinct objects where order does matter and replacements are not allowed.

                                  nPr = \frac{n!}{(n-r)!}

Factorial : There are n! ways of arranging n distinct objects into an ordered sequence.  

Considering a situation when n = r in a permutation, nPr reduces to n!, a simple factorial of n.

Proof: 3P3 = 3!

n = 3 and r = 3

                                   3P3 = \frac{3!}{(3-3)!}

                                   3P3 = \frac{3!}{(0)!}

But 0! = 1

                                    3P3 = 3!

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2 years ago
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0=-20.5x+16.35x-0.1245
Pachacha [2.7K]

The value of x in the given equation -20.5x+16.35x -0.1245 = 0\\ is 0.03

<u>Step-by-step explanation:</u>

The given equation is that -20.5x+16.35x -0.1245 = 0\\

<u>The steps to be followed to solve the equation are :</u>

Add the like terms together to reduce the equation in a simplified form.

Here, there are two x terms and they must be reduced to a single term.

For this, add the both terms together so that the equation is simplified into one x term and a constant term.

⇒ (-20.5x+16.35x) - 0.1245 = 0

⇒ 4.15x-0.1245 = 0

To eliminate the constant term on the left side of the equation, add 0.1245 on both sides.

⇒ 4.15x -0.1245+0.1245 = 0.1245

⇒ 4.15x = 0.1245

Now, the equation is further simplified by dividing 4.15 on both sides,

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7 0
3 years ago
Anyone know the answers or like a website with the answers for these problems they are giving me such a hard time I would GREATL
Digiron [165]

Answer:

just add all sides from the letters it says

Step-by-step explanation:

for an example a has a number b has a number c has a number add all of them together. Hope this helps!

3 0
3 years ago
PLZZZ HELP BE QUICK I'LL GIVE BRAINLEST
icang [17]

Answer:

the sum is 360 degrees, which means

360 = 124 + 124 + 2x + 2x

360 = 248 + 4x

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x = 28

Check:

124 + 124 + 2(28) + 2(28) =

360

Your answer is x = 28

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4 0
2 years ago
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