Engineering, 29.10.2019 03:31, kelseatuttleni
Consider relation r(a, b, c, d, e) with the following functional dependencies. 1. a + b 2. e + a 3. ce β d 1. find the key(s) of r? show that the key(s) is/are minimal. 2. find a minimal basis or prove the current basis is minimal. 3. perform a bcnf decomposition of r to find a lossless-join dependency-preserving decompo- sition.
Answers: 1
Engineering, 04.07.2019 08:10, doggo242
Which of the following is an easy way to remember the modified βxβ tire rotation? a. nondrive wheels straight, cross the drive wheels b. drive wheels straight, cross the nondrive wheels c. drive wheels crossed, nondrive wheels straight d. drive wheels crossed, nondrive wheels crossed
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Engineering, 04.07.2019 18:10, heidiburgos1own6c0
Fluids at rest possess no flow energy. a)- true b)- false
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Engineering, 04.07.2019 18:10, niicoleassssssf
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
Answers: 2
Consider relation r(a, b, c, d, e) with the following functional dependencies. 1. a + b 2. e + a 3....
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