Given an array-based circular queue with a maximum size of 4, draw what the queue looks like and give the values of count, queuefront, and queuerear after the following commands are done running. the initial values of the member variables are as follows: count = 0, queuefront = 0, queuerear = 3 insert(10) insert(20) insert(30) insert(40) delete() insert(60) insert(100) delete() insert(200) delete() insert(1000) insert(400) delete() insert(80) insert(200) delete()

Which text function capitalizes the first letter in a string of text? question 10 options: upper capital first proper

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)?

George is working as a programming team lead. which statements correctly describe the skills that he requires?