Question

Evaluate the permutation.

6 P 2

Answer 1

use the formula for permutations http://www.mathwithlarry.com/lessons/lessonimages/img61.gif

Answer 2

\[\frac{6!}{(6-2)!}\]

Answer 3

So \(\frac{6!}{4!}\)

Answer 4

\(6\times 5=?\)

Answer 5

^What she said.

Answer 6

why is it 6*5?

Answer 7

isnt the answer 720/24?

Answer 8

6 P 2 = 6x5

just expand the factorial by 2 terms

Answer 9

example :

10 P 3 = 10x9x8

Answer 10

Yes, the answer can be 720/24 (because it brings you to the same conclusion)

Answer 11

\[\huge \frac{6*5\cancel{4}*\cancel{3}*\cancel{2}*\cancel{1}}{\cancel{4}*\cancel{3}*\cancel{2}*\cancel{1}}\]

Answer 12

okay thanks yall. can someone help me with this one? Evaluate.

(n - 1)!, where n = 4

Answer 13

start by plugging in n = 4

Answer 14

is it 24-1?

Answer 15

If you understood factorial functions, you would understand better.. No, it's not.

Answer 16

nope, remember PEMDAS ?
always execute stuff inside parenthesis first

Answer 17

(n-1)!
(4-1)!
Order of operations dictates you do parentheses first

Answer 18

okay so (4-1)!
is 3!

Answer 19

3 and an exclamation is it !!!

Answer 20

yay thank yall!

Answer 21

any day m'lady

Answer 22

i think you want to evaluate the factorial also : 3! = 3x2x1

Answer 23

Do you understand how to do this, Madison?

Answer 24

im pretty sure i do @DangerousJesse . if i was supposed to evaluate 5! it would be 5*4*3*2*1 correct?

Answer 25

Yes! Once you get the concept, it becomes much easier.. Nice job :)

Answer 26

yes exactly ! having known the factorial notation, you just follow ur nose and evaluate everything :

100! = 100*99*89*....*3*2*1

Answer 27

what is the value of \(\huge \frac{(n+1)!}{n!}\)

Answer 28

stop once u reach 1

Answer 29

so when a question is 6 C 4 , how do i determine that?

Answer 30

its a different formula, but similar one.
look up ur notes for `combination formula`

Answer 31

meh, I'll just finish up that last thought I had written. \(\huge \frac{(n+1)!}{n!}=\frac{(n+1)*\cancel{n*...*2*1}}{\cancel{n*...*2*1}} \)