What coordinate frame is equivalent to the following frame? coordframe3d. identity).scale(1,-1,-1).rotate (90) coordframe3d. identity).rotatey (90).scale (-1,-1,1) coordframe3d.(180).scale(-1,1,1) coordframe3d. identity).rotatex(180).scale(1,1,-1 ) coordframe3d.(90).scale(1,1,-1)

As with any small island country, cuba has fewer natural resources than countries such as brazil. this affects their economy in that cuba a) exports only manufactured products. b) exports more products than it imports.. c) must import more products than it exports. d) has imposed trade barriers against the united states.

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)?

Lisa is making a presentation for her project and she wants to use the logo of her company in her presentation. which element would she use to make her logo stand out in her presentation? a. gradation b. contrast c. alignment d. balance