Find the difference between the product of 26.22 and 3.09 and the sum of 3.507,2.08,11.5, and 16.712

The editing of digital photos us about the same level of difficulty as editing an analog photo

When designing content as part of your content marketing strategy, what does the "think" stage represent in the "see, think, do, care" framework?

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)?