Simplify.
A. 
B. 
C. 
D. -y
Answer: C
Mathematics
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Find a minimum spanning tree for the graph.
A. 
B. 
C. 
D. 
Mathematics
Multiply.7(9 ? x)
A. 630x B. 56x C. 63x D. 53x
Mathematics
Find the angle between the given vectors to the nearest tenth of a degree.u = i + 
j, v = -i + 8j
A. 13.6° B. 68.9° C. 15.3° D. 27.8°
Mathematics
Find the probability.The maker of a certain candy claims that the proportions of colors of candy produced are: 
0.1 purple and 0.3 yellow. What is the probability that a randomly selected candy from a 
bag will be neither red nor green?
A. 0.2 B. 0.8 C. 0.1 D. 1
Mathematics