Var today = new date();

var upgradeday = new date("march 22, 2016");
var msperday = 24 * 60 * 60 * 1000 ;
var timeleft = (upgradeday. gettime() - today.;
var daysleft = math. round(timeleft / msperday);
var daysleft = math. floor(daysleft);

document. write("your license expired by
"30" days upgrade to continue ");

document. write("there are only
" + daysleft + " days until your computer upgrade");

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)?

In the blank libreoffice writer document, to start the process of entering a date field into a letter, click on the insert menu. edit menu. file menu. fields menu.

For positive constants a and b, the force between two atoms in a molecule is given f(r) = −a r2 + b r3 , where r > 0 is the distance between the atoms. note: a and b are upper case letters. (a) find f '(r) = (b) find the critical point for f(r). r = (c) find f ''(r) = (d) find the value of r so that f ''(r) = 0.