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KengaRu [80]
3 years ago
13

Please Explain how you got this answer

Mathematics
1 answer:
liberstina [14]3 years ago
7 0
"My fruit salad is a combination of apples, grapes and bananas"<span> We don't care what order the fruits are in, they could also be "bananas, grapes and apples" or "grapes, apples and bananas", its the same fruit salad.

</span>When the order doesn't matter, it is a Combination<span>.
</span>
The formula means <span>the number of ways to combine k items from a set of n

***************************************

n = 4 (brisket, chicken, ribs, turkey)
k = 2 (two-meat combos)

</span>_nC_k= \frac{n!}{k!(n-k)!} &#10; \\  \\ _nC_k= \frac{4!}{2!(4-2)!}&#10;\\ \\ _nC_k= \frac{4!}{2!2!}&#10;\\ \\_nC_k= \frac{4*3*2*1}{2*1*2*1}&#10;\\\\ _nC_k= \frac{4*3}{2*1}&#10;\\\\_nC_k= 2*3&#10;\\\\_nC_k=6<span>
</span>
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