The question is an illustration of arithmetic sequence.
<em>The number of conversation for 19 people is 171</em>
<u />
<u>(a) 9 people</u>
9 represents the number of people
8 represents the number of conversation each person had
2 represents the number of people having a conversation at once (i.e 2 people at once)
<u>(b) 19 people</u>
We have:
The number of conversation is:
So, we have:
Hence, the number of conversation for 19 people is 171
Read more about arithmetic sequence at:
brainly.com/question/18109692
Answer: y = 2x-7
Step-by-step explanation:
<span>Since 7 and 11 are both rational, the sum and difference are rational
</span><span>(p−7)=±11</span>
Since it is 900 + 2 + 0.6
the answer would be A
Answer:
16. B
17. B
18. B
19. B
20. B
I am not sure if they are all correct but I hope I helped you a tiny bit