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3 years ago

Inverse of g(x) = x^2+1

Mathematics

1 answer:

timurjin [86]3 years ago

8 0

To find the inverse, interchange the variables and solve for y

G^-1 (x) = square root x - 1, - square root x-1

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Form a seven-letter word by mixing up the letters in the word PICTURE.

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3 years ago

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ki77a [65]

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3 years ago

What value is a permutation of n things taken r at a time divided by to get the combination of n things taken r at a time?

Lera25 [3.4K]

Answer:

A. r!

Step-by-step explanation:

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

Permutations formula:

The number of possible permutations of x elements from a set of n elements is given by the following formula:

$P_{(n,x)} = \frac{n!}{(n-x)!}$

Permutation of n things taken r at a time

$P_{(n,r)} = \frac{n!}{(n-r)!}$

Combination of n things taken r at a time:

$C_{n,r} = \frac{n!}{r!(n-r)!}$

Division:

$\frac{P_{(n,r)}}{C_{n,r}} = \frac{\frac{n!}{(n-r)!}}{\frac{n!}{r!(n-r)!}} = \frac{n!}{(n-r)!} \times \frac{r!(n-r)!}{n!} = r!$

So the correct answer is:

A. r!

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3 years ago

Josh studied for his

grin007 [14]

he studied for 495 minutes. 165 minutes a day.

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3 years ago

Read 2 more answers

The figure is dilated about x using a scale factor of 3/2 what is the length in inches of the short side after the dilation ? A

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Answer:

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Step-by-step explanation:

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3 years ago