Consider the relation R (A, B, C, D, E) and the set of dependencies: G = {{A, B} → {D}, {B, C} → {A}, {D, E} → { C}}.
Check true or false for each of the alternatives below and justify.

I would like to understand what was done to find the correct answer and why the others are wrong. Thanks a lot!

Singing in the rain: this first part of the film shows the early history of motion picture. how accurate do you think the portrayal of the early motion picture industry is? why? is historical accuracy important in films and theater productions? explain.

You have read about the beginnings of the internet and how it was created. what was the internet originally created to do? (select all that apply) share research. play games. communicate. share documents. sell toys

Freya realizes she does not have enough in her bank account to use the debit card. she decides to use a credit card instead. which questions should freya answer before using a credit card? check all that apply. can i pay at least the minimum payment each month? can i make payments on time and avoid late fees? will i have to take out a loan? how much in finance charges can i afford to pay? should i talk to a consumer credit counseling service?