## Anikate 4 years ago Write the expression using factorials. 45

1. Anikate

help?

2. anonymous

$\left(\begin{matrix}10 \\ 8\end{matrix}\right)=(10!\div(8!\times2!))=45$

3. Anikate

uh... where did u get all that from MHM5000 does have to do anything with a formula

4. Anikate

what's next the answer to that is -88.75

5. anonymous

I didn't get your Q! type it in regular English! I'm Starter in it! ;)

6. anonymous

The question is not clear.

7. Anikate

write the expression using factorials. I need a factorial for 45 ex. 21*20*19=21P3

8. anonymous

Factorial for 45 as in something factorial = 45? It is not.

9. Anikate

yup

10. anonymous

Factorial of a number = 1 * 2 * 3 * 4 * 5 *........* n

11. Anikate

plz explain to me

12. anonymous

Nothing factorial = 45. But, ratios of some factorials can equal 45. There can be many.

13. Anikate

ok

14. Anikate

ok

15. anonymous

For example, 5! = 1*2*3*4*5 = 120 For example, 4! = 1*2*3*4 = 24 45 can't be represented as a factorial.

16. Anikate

is there a decimal ?