Answer:
b is not a function
Step-by-step explanation:
To be a function there must be a one to one correspondence.
Each x must only go to one y
b has an x that goes to two different y's
1 goes to 5 and 13. That makes it a relation not a function
The number of ways when the choice is not relevant is 4
<h3>How to determine the number of ways?</h3>
The number of colors are:
Colors, n = 4
The color to choose are:
r = 3
<u>Relevant choice</u>
When the choice is relevant, we have:
![Ways = ^nP_r](https://tex.z-dn.net/?f=Ways%20%3D%20%5EnP_r)
This gives
![Ways = ^4P_3](https://tex.z-dn.net/?f=Ways%20%3D%20%5E4P_3)
Evaluate
Ways = 24
Hence, the number of ways when the choice is relevant is 24
<u>Not relevant choice</u>
When the choice is not relevant, we have:
![Ways = ^nC_r](https://tex.z-dn.net/?f=Ways%20%3D%20%5EnC_r)
This gives
![Ways = ^4C_3](https://tex.z-dn.net/?f=Ways%20%3D%20%5E4C_3)
Evaluate
Ways = 4
Hence, the number of ways when the choice is not relevant is 4
Read more about combination at:
brainly.com/question/11732255
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Answer:
its called a frcaction
Step-by-step explanation:
Easily done! Just do -56 divided by -7 but just remember two negatives equal a positive. So your answer would be 8!
39 >-39 , |39| = |-39| there you go