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umka2103 [35]
3 years ago
15

Evaluate the expression. 5P4

Mathematics
1 answer:
Oksanka [162]3 years ago
4 0

Answer:

5p4 = 120

Step-by-step explanation:

nPr

Where n=5 and r =4

(5!) ÷ (5-4)!= (5*4*3*2*1)÷(1)=120

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Answer:

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Step-by-step explanation:

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y - 13 = -5x - 5

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Write the volume in cm3 of a container which holds 2.250litre?
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Step-by-step explanation:


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Factor out the greatest common monomial factor from the polynomial. (If the polynomial has no common monomial factor, enter NCF.
Dmitry_Shevchenko [17]

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Step-by-step explanation:

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5 0
3 years ago
There are x ducks in a pond. The number of swans in the pond is equal to the square root of the number of ducks. If the total nu
Mashcka [7]

Answer:

<h2>There are 9 ducks and 3 swans in the pond.</h2>

Step-by-step explanation:

According to the problem, the number of swans in the pond is equal to the square root of the number of ducks, this can be expressed as

s=\sqrt{x}

Where x represents the number of ducks in the pond.

If the total number of swans and ducks is 12, the expression would be

s+x=12

Now, we replace the first equation in the second one

\sqrt{x} +x=12

Then, we elevate each side to the square power

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Using a calculator, the roots are 9 and 16.

Let's evaluate each value.

For x=9, s=\sqrt{9}=3, and 9+3=12, which is true.

For x=16, s=\sqrt{16} =4, and 16+4=20, which is false.

Therefore, there are 9 ducks and 3 swans in the pond.

7 0
3 years ago
Read 2 more answers
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