There are 8 different types of chips at Subway How many different ways can you choose 2 of them?
1 answer:
We have been given that there are 8 different types of chips at Subway. We are asked to find the number of different ways to choose 2 of them.
We will use combinations to solve our given problem.
Number of combinations of r objects chosen from n objects is given by
Therefore, you can choose 2 of them in 28 different ways.
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For test point x = –2, the inequality is true.
For test point x = 0, the inequality is false.
For test point , the inequality is true.
For test point x = 2, the inequality is false.
Solution:
Given expression is the inequality.
Substitute x = –2 in the inequality.
< 0
For test point x = –2, the inequality is true.
Substitute x = 0 in the inequality.
> 0
For test point x = 0, the inequality is false.
Substitute in the inequality.
< 0
For test point , the inequality is true.
Substitute x = 2 in the inequality.
> 0
For test point x = 2, the inequality is false.
Hence,
For test point x = –2, the inequality is true.
For test point x = 0, the inequality is false.
For test point , the inequality is true.
For test point x = 2, the inequality is false.