Use Armstrong's axioms to prove the soundness of the pseudotransitivity rule. II. Consider the relation schema R = (N, Y, P, M, C) and assume that the following set of functional dependencies holds on R: F = { N → M, NY → P, M → C}
The letters can be interpreted as follows: R = (Model_Number, Year, Price, Manufacturing_Plant, Color).
Evaluate each of the following as a candidate key for R, giving reasons why it can or cannot be a key: N, NY, NC.
Find all the candidate keys of R.
Show that the functional dependency NY → P does not contain extraneous attributes.
Show that F is already in canonical cover form.
Consider the decomposition d = (R1, R2) where R1 = (N, Y, P) and R2 = (N, M, C). Is this decomposition lossless-join? Make sure to justify your answer and to show all details.

Why is hard disk space important to an audio engineer? why are usb ports and firewire ports useful for an audio engineer? explain in 2-3 sentences. (3.0 points) here's a list of different audio software: ableton live apple inc.'s garageband apple inc.'s logic studio digidesign's pro tools propellerhead sofware's reason sony creative software's acid pro steinberg cubase steinberg nuendo choose one of the software programs listed above, and then go to that software program's web site. read about what the software program is used for, and then write 4-5 sentences about what you learned. (10.0 points) which type of software license is the most limiting? why? explain in 2-3 sentences. (3.0 points) when sending a midi channel voice message, how can you control the volume of the sound? explain in 2-3 sentences. (4.0 points)