Suppose you have the following project digraph. (The numbers in parentheses represent hours.)
Using the decreasing-time algorithm to schedule this project with two processors results in a finishing time of
A. 22 hours.
B. 21 hours.
C. 24 hours.
D. 26 hours.
E. none of these
Answer: D
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A. 4 : 3 B. 3 : 2 C. 1 : 1 D. 1 : 2
Use modular arithmetic to find the answer.Find all x such that x ? 1 (mod 6).
A. x = 6k, where k is an integer B. x = 6 C. x = 6k + 6, where k is an integer D. x = 6k + 1, where k is an integer
Determine whether the statement is true or false.The function f(x) = mx + b is a one-to-one function for all values of m and b.
A. True B. False
Solve the problem.What is the greatest area that a rectangle can have if the length of its diagonal is 
A. 2 m2
B. 1 m2
C. 2
m2
D. 5 m2