Use the unit circle to find the value of the trigonometric function.cot 
A. 1
B. undefined
C. -1
D. 0
Answer: D
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Suppose you have the following project digraph. (The numbers in parentheses represent hours.)
Consider the following timeline using two processors.
A. This is the timeline one gets using the decreasing-time algorithm. B. This is the timeline one gets using the critical-path algorithm. C. This timeline is an illegal schedule. D. This timeline is an optimal schedule. E. none of these
Simplify the rational expression. If the rational expression cannot be simplified, so state.
A. 
B. 
C. 
D. 
If y varies inversely as x, find the inverse variation equation for the situation.y = 60 when x = 5
A. y = 12x
B. y = 
C. y = 
D. y = 
Decide whether or not the ordered pair is a solution of the system.(-4, -1)3x + y = -134x + 3y = -19
A. No B. Yes