Answer:
will you let me off the hook because of my cute pika pfp?
The answer o this question would be:
<span>A.The vertical line test may be used to determine whether a function is one-to-one
</span><span>D. The horizontal line test may be used to determine whether a function is one-to-one.
Vertical and horizontal line test can be used to find out whether the function, not one-to-one. The test is done by making a horizontal line (for horizontal line test) or vertical line( for vertical line test). If there are no 2 or more points of the graph that touch the line in both tests, then the function would be one-to-one</span>
Answer:
Christopher can take 56 different groups of 5 shirts.
Step-by-step explanation:
Christopher has 8 unique shirts.
Out of these only 5 can fit in his bag.
So the number of ways in which he can choose 5 shirts from the available 8 is given by ![\[_{5}^{8}\textrm{C}\] ](https://tex.z-dn.net/?f=%5C%5B_%7B5%7D%5E%7B8%7D%5Ctextrm%7BC%7D%5C%5D%0A)
This can be evaluated as ![\[\frac{8!}{5!*3!}\]](https://tex.z-dn.net/?f=%5C%5B%5Cfrac%7B8%21%7D%7B5%21%2A3%21%7D%5C%5D)
Simplifying further,
= ![\[\frac{6*7*8}{1*2*3}\]](https://tex.z-dn.net/?f=%5C%5B%5Cfrac%7B6%2A7%2A8%7D%7B1%2A2%2A3%7D%5C%5D)
= 56
So Christopher has 56 choices to select 5 shirts out of 8.
Answer:
231
Step-by-step explanation:
7x21=147
6x17=102
147+102=249
249-18=231
Answer: Letter D 7x21+6x17-18
Bye yw!
