Solve the problem.The number of edges in K12 is
A. 12!.
B. 66.
C. 132.
D. 12.
E. none of these
Answer: B
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Provide an appropriate response.Find the indicated sum: 
.
A. 20 B. 5 C. -18 D. -6
Use the discriminant to find what type of solutions (two rational, two irrational, one rational, or two nonreal complex) each of the following equations has. Do not solve the equation.x2 + 2x + 6 = 0
A. two rational solutions B. two nonreal complex solutions C. one rational solution D. two irrational solutions
If the set W is a vector space, find a set S of vectors that spans it. Otherwise, state that W is not a vector space.W is the set of all vectors of the form 
, where a and b are arbitrary real numbers.
A. 
, 
, 
B. 
, 
C. Not a vector space
D. 
, 
Use the properties of logarithms to expand the expression as a sum, difference, and/or constant multiple of logarithms. (Assume all variables are positive.)
?
?
A. 
B. 
C. 
D. 
E. 