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
Answer: B
Mathematics
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Simplify completely.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The Blood Alcohol Concentration (BAC) of a person who has been drinking is given by the expression number of oz × % alcohol × .075 ÷ body weight in lb - hours of drinking × .015.Find the BAC to the nearest thousandth for a 174-lb woman, who, in 3 hours, has drunk 4 16-oz beers (64 oz), each having a 3.2% alcohol content.
A. -199.912 B. -0.207 C. 0.043 D. -0.023
Mathematics
Perform the indicated operation. Write the answer in standard form.(-4 - 6i)(4 + i)
A. -22 + 20i B. -10 + 20i C. -10 - 28i D. -22 - 28i
Mathematics
Write the rational expression in lowest terms.
A. -1 B. s - y C. s + y D. Already in lowest terms
Mathematics