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Roman55 [17]
3 years ago
10

Find each value.Use a calculator is needed P(9,2) .P(5,5). P(7,7)

Mathematics
1 answer:
Andrews [41]3 years ago
3 0
The answers are:
P(9, 2) = 72
P(5, 5) = 120
P(7, 7) = 5040

These are examples of permutations. The problems are asking us to find the total number of ways an event can happen.

In the first case, P(9, 2), we are asked to find the ways that 2 things can be chosen out of a group of 9.
9 x 8 = 72

P(5, 5) = 5 x 4 x 3 x 2 x 1 
P(7, 7) =  7 x 6 x 5 x 4 x 3 x 2 x 1
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3 years ago
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What is the value of s in the equation 3 r equals 10 plus 5 s, when r equals 10? 4 8 100 200
alisha [4.7K]

Answer

<h2>4</h2>

Step-by-step explanation:

Given,

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Hope this helps..

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6 0
2 years ago
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Which system about this figure is true?
jok3333 [9.3K]

Answer:

1) It has rotational symmetry with an angle of rotation of 90 degrees.

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Step-by-step explanation:

Rotational Symmetry is when an object is rotated around a center point (turned) a number of degrees and the object appear the same.

Symmetry Order = Number of turns it takes to get to its similar position.

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3)It has reflection symmetry with many planes of symmetry.

TRUE, it has inflectional symmetry in Horizontal as well a in vertical plane.

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