Select the correct answer. Which engineering professional communicates potential flaws in product design? A. maintenance engineer B. design engineer C. analysis engineer D. inspection engineer E. field engineer

Look at the far left lane in the picture. explain what the red car is doing and what it needs to do to travel safely.

If you want to import a picture into a dtp application, what must you do first? draw an image frame. import text. open the folder containing the file. select get image… from the windows menu.

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)?