3 years ago

Determine the domain on which the following function is decreasing.

1 answer:

7 0

The way I remember domain(the distance where x is shown) and range(the distance where y is shown) is that it lines up with an ordered pair. It sounds wrong to say range and domain, just like it sounds wrong to say y,x.

the answer for this would be [0,11]

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

Flauer [41]

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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