Suppose you have the following project digraph. (The numbers in parentheses represent hours.)
If we use the critical-path algorithm to schedule this project with two processors, we should start by assigning

A. task A to one processor, task B to the other one.
B. task A to one processor, task C to the other one.
C. task B to one processor, task E to the other one.
D. task B to one processor, task C to the other one.
E. none of these

Answer: D

Mathematics

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Solve the problem or provide an explanation.Graph y = -x2 + 5x + 6 and f(x) = together on your graphing calculator. State the domain of f(x) and explain the connection between the domain of f(x) and the graph of

A. The domain of f(x) is (-?, ?). The domain of f(x) is the same as the domain of y = -x2 + 5x + 6.
B. The domain of f(x) is (-?, -1] ? [6, ?). The domain of f(x) is the set of all x-values for which the graph of is on or below the axis.
C. The domain of f(x) is ?. There is no connection between the domain of f(x) and the graph of
D. The domain of f(x) is [-1, 6]. The domain of f(x) is the set of all x-values for which the graph of is on or above the x-axis.