What is the most common type of communication?

Which law requires employers to provide safe working environments for their employees? a. civil rights act b. fair labor standards act c. occupational safety and health act d. wagner act

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)?

Select the correct answer from each drop-down menu. which types of computer networks are bigger as well as smaller than a man? a man is a network of computers that covers an area bigger than a , but smaller than a .