After the explosion of the Union Carbide plant the operators were afraid to turn on the flare tower Select one: a. for fear of cooling the large cloud of gas b. for fear of blowing the large cloud of gas to another city c. for fear of smothering the large cloud of gas d. for fear of igniting the large cloud of gas

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)?

Me ! evelyn is a manager in a retail unit. she wants to prepare a report on the projected profit for the next year. which function can she use? a. pmt b. round c. division d. what-if analysis

You're programming an infinite loop. what must you include in your code to prevent crashes? in roblox