Develop a program having a base class Student with data members rollno, name and Class define a member functions getdata() to input values and another function putdata() to display all values. A class Test is derived from class Student with data members T1marks, T2marks, T3marks, Sessional1, Sessional2, Assignment and Final. Also make a function getmarks() to enter marks for all variables except Final and also make a function putmarks() to display result. Make a function Finalresult() to calculate value for final variable using other marks. Then display the student result along with student data.

The method of presentation refers to the planning process for the presentation. the information chosen for the presentation. how the presentation topic will be introduced. how the presentation will be delivered.

Which of these options are the correct sequence of actions for content to be copied and pasted? select content, click the copy button, click the paste button, and move the insertion point to where the content needs to be inserted. click the copy button, select the content, move the insertion point to where the content needs to be inserted, and click the paste button. select the content, click the copy button, move the insertion point to where the content needs to be inserted, and click the paste button. select the content, move the insertion point to where the content needs to be inserted, click the copy button, and click the paste button.

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)?