Question

A salad bar offers nine choices of toppings for lettuce. In how many ways can you choose five toppings?

Answer 1

@student365 45 ways?

Answer 2

9 C 5 is what you want. If you are not familiar with combination notation:

m C n is:\[\frac{ m! }{ (n!)[(m - n)!] }\]Just substitute 9 for "m" and 5 for "n". Also,

x! = (x)(x-1)(x-2) . . . (3)(2)(1)

That's all you need mathematically to solve this.

Answer 3

126?

Answer 4

You got it! Good job!

Answer 5

thanks

Answer 6

uw! Good luck to you in all of your studies and thx for the recognition! @student365