Decide whether the following decomposition of R={M, N, O, P, Q, T}, with the functional dependency set F = {MON, PQ, MTP, OT, ONM, MNO} is dependency-preserving and lossless-join. Show the test matrix. R1(M, O, N) R2(M, N, T, P) R3(M, T, Q)

Amedian in the road will be marked with a white sign that has a black arrow going to the left of the median. true false

What statement best describes operating systems? it’s possible for modern computers to function without operating systems. most operating systems are free or very inexpensive. operating systems are managed by the computer’s microprocessor (cpu). operating systems manage the computer’s random access memory (ram).

If you combine two cells into one, what action are you performing? a.  adding a new row or column      b.  splitting the cells      c.  removing a new row or column      d.  merging the cells