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Question: The 4-tuples in a 4-ary relation represent these attributes of published books: title, ISBN, publication date, number of pages.
a) What is a likely primary key for this relation?
b) Under what conditions would (title, publication date) be a composite key?
c) Under what conditions would (title, number of pages) be a composite key
earth would weigh 39lb on theta space station.if a piece of equipment weighs 2006lb on earth, what would it weigh on the theta space station? round to the nearest whole unit.
(Round the number that you compute and use to the nearest whole number.) According to the model, what will the enrollment be in the year 2025?
85% of adults favor gun licensing in general. Select one adult at random. Find the probability that the selected adult doesn’t believe in gun licensing?
A 12 inch piece of wire is to be cut into two pieces. One piece is to be used to form a square and the other to form a circle. How should the wire be cut if the sum of the areas is to be maximized?
braun invested a certain sum of money at 8 p.a. simple interest for n years. at the end of n years braun got back 4
Manufacturing capacity data show that the annual increase in manufacturing capacity between 1994 and 2000 is given.
The water from one outlet, flowing at a constant rate, can fill the swimming pool in 9 hours. The water from second outlet, flowing at a constant rate can fill up the same pool in approximately in 5 hours. If both the outlets are used at the same ..
Given a position vector r(t) = [t, t2, t3], Find the velocity and acceleration vectors and the speed at time t. Find the equation of the line passing through the points P (3,5,7) and Q (6,5,4).
Determine an equation of the tangent line to y = e-3x at (0, 1). Differentiate the implicit function 2yex + 1 = x and Locate any relative extrema and points of inflection for f(x) = x2ln(x)
From a lot of 10 missiles, 4 are selected at random and fired. If the lot contains 3 defective missiles that will not fire, what is the probability that
39 women used skin cream for 22 weeks. At the end of the period, a dermatologist judged whether each womam exhibited skin improvement. The results show that 22 women improved. Do the data provide sufficient evidence to conclude that the cream w..
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