Using the combination formula, it is found that there are 220 ways to decide which countries to skip.
The order in which the countries are skipped 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)
In this problem, 3 countries are skipped from a set of 12, hence the number of ways is given by:
![C_{12,3} = \frac{12!}{3!9!} = 220](https://tex.z-dn.net/?f=C_%7B12%2C3%7D%20%3D%20%5Cfrac%7B12%21%7D%7B3%219%21%7D%20%3D%20220)
More can be learned about the combination formula at brainly.com/question/25821700
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Answer:
Input of x when it is equal to (1,2,3,4,5) gave an output of 3, 9, 27,81 & 243 respectively.
Step-by-step explanation:
Step 1. Substitute for x (1,2,3,4,5) in the functions to solve for the output of y.
y=3^x
when x= 1
y=3¹ = 3
when x= 2
y=3² = 9
when x= 3
y=3³ = 27
when x= 4
y=3⁴ = 81
when x= 5
y=3 ^ 5 = 243.
Input of x when it is equal to (1,2,3,4,5) gave an output of 3, 9, 27,81 & 243 respectively.
Right scalene triangle, because each side is a different length.
The answer is 16 hope this helps you.
Answer:
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Step-by-step explanation:
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