Answer:
B2C and B2B, respectively.
Explanation:
The pickup that David bought to transport equipment on weekend fishing trips should be considered a business to consumer (B2C) transaction David will use it for recreational activities.
The trailer that David bought to transport his lawn maintenance equipment should be considered a business to business (B2B) transaction David will use it for his lawn maintenance business.
Solution:
200 births and 10 immigrants will be added to the population.
Total is 210.
60 deaths and 30 emigrants will be taken away from the
population. Total here is 90.
Just a reminder that an emigrant is somebody who leaves
their own country to lastingly settle into a different country.
Therefore, 210 people are added to the population, and 90
people are to be subtracted, for a net gain of 210 - 90 = 120 people.
What percentage is 120 of 10,000?
<span>120/10,000 = 0.012 = 1.2% annual growth rate</span>
<span>n/2 = average number of items to search.
Or more precisely (n+1)/2
I could just assert that the answer is n/2, but instead I'll prove it. Since each item has the same probability of being searched for, I'll simulate performing n searches on a list of n items and then calculate the average length of the searches. So I'll have 1 search with a length of 1, another search looks at 2, next search is 3, and so forth and so on until I have the nth search looking at n items. The total number of items looked at for those n searches will be:
1 + 2 + 3 + 4 + ... + n
Now if you want to find the sum of numbers from 1 to n, the formula turns out to be n(n+1)/2
And of course, the average will be that sum divided by n. So we have (n(n+1)/2)/n = (n+1)/2 = n/2 + 1/2
Most people will ignore that constant figure of 1/2 and simply say that if you're doing a linear search of an unsorted list, on average, you'll have to look at half of the list.</span>
