In terms of their eligibility for legal protection, how do ideas differ from song lyrics? Ideas can be copyrighted, while song lyrics can be trademarked.

Ideas can be copyrighted, while song lyrics cannot be copyrighted or trademarked.

Ideas can be trademarked, while song lyrics can be copyrighted.

Ideas cannot be copyrighted or trademarked, while song lyrics can be copyrighted.

In which phase does software coding and testing happen in the spiral model? the spiral model does not have a separate testing phase. both, software coding and testing occurs during the phase.

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)?

Which of these is an example of an integrated presentation? a. a table created in powerpoint b. an image pasted into powerpoint c. a caption created in powerpoint d. an excel chart pasted into powerpoint