Viết hàm trả về tổng số sinh viên có trong danh sách L.

Which is a benefit of getting information from a government website? a. the information will be easy to understand. ob. the information will be the most current. oc. the information can be trusted.

Now, open this passage to read about fafsa requirements. describe the information you will need to provide in order to complete a fafsa. list at least three of the required documents you must include.

Suppose there is a relation r(a, b, c) with a b+-tree index with search keys (a, b).1. what is the worst-case cost of finding records satisfying 10 < a < 50 using this index, in terms of the number of records n1, retrieved and the height h of the tree? 2. what is the worst-case cost of finding records satisfying 10 < a < 50 and 5 < b < 10 using this index, in terms of the number of records n2 that satisfy this selection, as well as n1 and h defined above? 3. under what conditions on n1 and n2, would the index be an efficient way of finding records satisfying the condition from part (2)?