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3 years ago

Can someone help me with this and explain: Compute 28P7

1 answer:

3 0

Using the factorial notation of the permutation formula, we get:

$nPr = \frac{n!}{(n - r)!}$
$28P7 = \frac{28!}{(28 - 7)!}$
$= 28 \cdot 27 \cdot 26 \cdot 25 \cdot 24 \cdot 23 \cdot 22$
$= 5 967 561 600$

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3 years ago

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Step-by-step explanation:

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3 years ago

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Here, Given

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2 years ago

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JulsSmile [24]

To answer this question, we would have to use algebra.

Let the unknown number be A.

Now, as per the question, we have the equation ->
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So, the final answer is --> A > 12

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3 years ago

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Lady bird [3.3K]

Step-by-step explanation:

Given equations:

y = x² + 3x - 29 ------ (i)

y = 2x - 9 ---------------- (ii)

Now to solve this problem, we must determine the value of x and y;

Equate equations 1 and 2;

x² + 3x - 29 = 2x - 9

x² + 3x - 2x - 29 + 9 = 0

x² + x - 20 = 0

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