Perform the indicated operation.
+ 
A. 4x
B. - 
C. 0
D. -4x
Answer: A
Mathematics
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Identify all values for which the expression is undefined.
A. - 
B. 7
C. None
D. 
Mathematics
The question(s) that follow refer to the problem of finding the minimum spanning tree for the weighted network shown below.
Using Kruskal's algorithm, which edge should we choose third?
A. BC B. AC C. CD D. BD E. none of these
Mathematics
Provide the proper response.True or False? A hyperbola has eccentricity 1.
A. True B. False
Mathematics
Simplify. Assume that all variables represent positive numbers.
A. 
B. 
C. 
D. 
Mathematics