Question

How do I do this?
10^C7
1
3,628,800
604,800
120

Answer 1

Whenever we are given nCx, we can rewrite this as
\[\frac{ n! }{ (n-x)!x! }\]

In your scenario, we can rewrite 10C7 as
\[\frac{ 10! }{ (10-7)!7! } \rightarrow \frac{ 10! }{ 3!7! }\]
If you are allowed to use a calculator, you can simply plug in those numbers and the factorial symbols (!) to get your answer.

Answer 2

what are the !?

Answer 3

! is the factorial sign

Answer 4

how would i do 7^C4?

Answer 5

The factorial means that you multiply the number by each number proceeding it by 1.
In other words
3!= (3)(2)(1)
5!=(5)(4)(3)(2)(1)

For your second question -- Think about it :) Use the equation I gave you! If you get stuck let me know and I'll direct you further.

Answer 6

i got 35

Answer 7

So did I :)

Answer 8

ok :) thanks

Answer 9

You are welcome!

Answer 10

for 6^P4 i getting 15 but its not on my answer choices