PROCEDURE mystery x X
< 0
IFY
DISPLAY Y
Which of the following best describes the behavior of the procedure
It displays true if x is negative and display: false otherwise
It displays nothing ifx is negative and displays true otherwise
It displays true if is negative and display: nothing otherwise
It displays nothing if x is negative and displays false otherwise
Od

This graph compares the total cost of attending educational institutions in texas. the graph demonstrates that the cost at private and public technical schools greatly varies.

Who needs to approve a change before it is initiated? (select two.) -change board -client or end user -ceo -personnel manager -project manager

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)?