Answer:
x=2
Step-by-step explanation:
Using the combination formula, it is found that there are 495 ways to choose a 4-topping sandwich.
The order in which the toppings are chosen is not important, hence the <em>combination formula</em> is used to solve this question.
<h3>What is the combination formula?</h3>
is the number of different combinations of x objects from a set of n elements, given by:
![C_{n,x} = \frac{n!}{x!(n-x)!}](https://tex.z-dn.net/?f=C_%7Bn%2Cx%7D%20%3D%20%5Cfrac%7Bn%21%7D%7Bx%21%28n-x%29%21%7D)
4 toppings are chosen from a set of 12, hence the number of ways is given by:
![C_{12,4} = \frac{12!}{4!8!} = 495](https://tex.z-dn.net/?f=C_%7B12%2C4%7D%20%3D%20%5Cfrac%7B12%21%7D%7B4%218%21%7D%20%3D%20495)
More can be learned about the combination formula at brainly.com/question/25821700
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6,820 because 2 is in the place of the tens
Answer:
100
Step-by-step explanation: its the same thing but in a different form
Answer:
16
Step-by-step explanation:
put (2) in for (a) and (6) in for (b)
add the two numbers in parentheses then multiply the product by (2)