ies are 13 1st 2nd O C, E, D, B, A O D, B, A, E.C O B,A E, C, D o D, C, A, E, B of 7 ry of 7 Click to select your answer ss Li.
Design Of Database System Course 1. Given the relation R(A,B,C,D,E) with {A->B, B->C, C->A, E->D}. Select attribute(s) below that are prime attributes. A B C D E
. 6. (10 points) Given the universal set U = {a, b, c, d, e, i, o, u, x, y, z}, and three sets A = {a, b, c, d, e}, B = {a, e, i, o, u}, C = {0, u, x, y, z}. Find the following sets (a) A UB (b) COB'
A) Choice a B) Choice b C) Choice c D) Choice d E) Choice e Given the two class files: public abstract class Person { private String firstName; private String lastName; public Person(String firs, String last) { firstName = first; lastName = last; }
c. b. A+B e. a Free Energy d. Progress of the Reaction Given the energy diagram for the reaction of A+B --> C above, what is represented by the arrow marked d.? Select one: O A. Activation energy of the reverse catalyzed reaction o B. Energy difference between the catalyzed and uncatalyzed reactions OC. Activation energy of the reverse uncatalyzed reaction o D. Energy difference between the reactants and products
23 12 15 10 15 5 1st Choice А D C с B D 2nd Choice B A D D D А 3rd Choice C С A B А C 4th choice D B B А С B Using the plurality with elimination method, which of the following situations would result in winning the election in round two? Select the correct answer below: OC, after receiving 20 additional first choice votes with no other additional votes given None of these...
(30 pts) Given R(a, b, c, d, e) with a key (a,b) and given the following set of functional dependencies F = { {a, b} → {c, d, e}, b → {d, e} }. Is R in 1NF? Justify your answer. Is R in 2NF? Justify your answer. Is R in 3NF? Justify your answer.
1. Given the schema R(A,B,C,D,E) with the functional dependencies F = { A → C,D D B, E B, C + D, E E → B,C } Is this schema in BCNF? If it is, prove it. If not, find a BCNF decomposition and then prove that the decomposition is in BCNF. You must prove each step carefully.
Identify the rate equation of the termolecular elementary reaction given below. A+B+C → D+E a. k[D][E] b. k[A][B][C] c. k([A]+[B]+[C]) d. (k[A][B][C])/(k[D][E]) e. k([D]+[E])
Which of the following is not a topological ordering for the graph: A ) O f, e, d, a, c, b O f, a, b, d, e, c O e, f, a, d, c, b O f,a,c,e,d,b QUESTION 4 Which of the following is not part of the definition of a flow? The flow out of the source is 0. O The flow into a vertex (not the source or drain) equals the flow out of that vertex. O The...