Question

Simplify 10P5
Simplify 10C3

Answer 1

Do you have a TI-84 calculator?

Answer 2

No, only a simple one.

Answer 3

Oh, okay. Well there's a website calculator. Would you like to know? Or do you want to know how?

Answer 4

Yes, I would like to know!

Answer 5

https://www.mathway.com/
You can either use that website or....

Answer 6

Thank you very much!

Answer 7

Would you like to know how to do it by hand?

Answer 8

Permutation Formula:
nPk=n!/(n-k)!

Answer 9

10!/(10-5)!
Calculate the numerator: 10!
10!= 10*9*8*7*6*5*4*3*2*1
10!= 3,68,800

Calculate the denominator:
(n-r)! = (10-5)!
(10-5)! = 5!
5!= 5*4*3*2*1
5!= 120

10P5= 3,628,800/120
10P5= 30,240

Answer 10

Can I ask where you got (n-r)! from?

Answer 11

Sorry *k It's the formula.

Answer 12

Permutation = nPr = n! / ( n - r )!
Combination = nCr = nPr / r!
where, n, r are non negative integers and
r <= n. r is the size of each permutation
n is the size of the set from which elements are permuted.
!is the factorial operator.

Answer 13

Does that make sense?

Answer 14

Yes! Thanks!

Answer 15

You're welcome:) Glad I could help:)