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Ivahew [28]
3 years ago
9

Find a recurrence relation for the number of permutations of a set with n elements

Mathematics
1 answer:
Diano4ka-milaya [45]3 years ago
5 0

Answer:

here

Step-by-step explanation:

here

u can see in pictures

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Seven less than a number is 14 more than 2 times that number. What is the number?
ratelena [41]

Answer:

x=-21

Step-by-step explanation:

x-7=2x+14

-7=x+14

-21=x

4 0
3 years ago
Triangles are worth 3 points. Quadrilaterals are worth 4 points. Parallelograms are worth 5 points. Each student identifies and
timurjin [86]

Answer:

I agree on janice because if is reliable and brilliant,she can score more than that

3 0
2 years ago
A cell phone bill provider offers a plan that costs $20 per month plus $0.10 per text message sent or received. A comparable pla
dybincka [34]

Answer:

100 texts

Step-by-step explanation:

20+.1x=30

30-20=10

10 dollar difference in base prices.

10/.1 (to find out how many texts)

100 texts

7 0
3 years ago
In a class of 40 students, everyone has either a pierced nose or a pierced ear. The professor asks everyone with a pierced nose
viktelen [127]

Answer:

3 students

Step-by-step explanation:

If everyone in the class has either a pierced nose or ear, we just simply have to add up the total number of hands raised and minus the number of students in the class.

35+8=43

43-40=3

3 students have both a pierced nose and pierced ear.

6 0
3 years ago
(c) The original function y= A(n) converted an input, the circle's radius, to an output, the circle's area.
timama [110]

Two functions f(x) and g(x) are inverses if and only if is true that each function evaluated in the other is equivalent to the identity.

This means that:

f( g(x)) = g( f(x)) = x

With this we can see that:

Input = area

Output = radius.

-------------------------------------

Let's see how we concluded that.

First, we know that the function:

y = A(n) converts an input, the radius of a circle into an output, the circle's area.

Let's assume that G(x) is the inverse function, and "n" is the variable that represents the radius.

By the definition of inverse functions we must have that:

G( A(n)) = n

and n is a radius, so the <u>output of the inverse function is the radius of a circle.</u>

And <u>A(n) is the</u><u> area </u><u>of that circle,</u> then the <u>input for the inverse function is the area.</u>

<u />

Finally, we can conclude that:

Input: Area

Output: Radius.

If you want to learn more, you can read:

brainly.com/question/2541698

3 0
2 years ago
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