Solve the problem.A graph has 13 edges. The sum of the degrees of all the vertices of this graph is
A. 26.
B. 52.
C. 13.
D. not possible to determine from the information given.
E. none of these
Answer: A
Mathematics
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Evaluate.Find (f + g)(-1) when f(x) = x + 5 and g(x) = x + 2.
A. -9 B. 1 C. 5 D. -5
Mathematics
Write an equivalent expression. Use a commutative law.2 + b
A. b + 2 B. 2(1 + b) C. 2b D. b2
Mathematics
Find an equation in slope-intercept form of the line that passes through the given point and has slope m.(-5, -1); m = 0
A. y = - 5x + 0
B. y = -1
C. y = - 
x + 0
D. x = -5
Mathematics
Factor the polynomial.729y3 - 343
A. (9y + 7)(81y2 - 63y + 49) B. (729y - 7)(y2 + 63y + 49) C. (9y - 7)(81y2 + 49) D. (9y - 7)(81y2 + 63y + 49)
Mathematics