If a street has a central lane bordered by solid yellow and broken yellow lines, you a. must use it when you turn left b. may use of this lane for any purpose c. may enter this lane no more than 200 ft from the location of the left turn

Is an attack that relies on guessing the isns of tcp packets

How do i delete my account on this because i didn't read this agreements and also i put age at xd

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)?