A city crew must paint the median divider along each of the 48 streets in the neighborhood shown below (starting and ending at A). The foreman wants to organize the route in the most efficient possible way.
The number of vertices of odd degree in the graph that models this problem is
A. 12.
B. 8.
C. 4.
D. 16.
E. none of these
Answer: D
Mathematics
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Find the volume of the indicated region.the region in the first octant bounded by the coordinate planes and the planes 
, 
A. 
B. 
C. 
D. 
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Multiply using the special product rules for binomials.(4x2 - 5y)2
A. 16x2 - 40x2y + 25y2 B. 16x4 - 41x2y + 25y2 C. 8x4 - 20x2y + 10y2 D. 16x4 - 40x2y + 25y2
Mathematics
Let 
be an arbitrary operation. Describe the operation 
for the problem.
?
?
A. a + b + 1 - 1 B. a + b + 1 C. a + b D. ab E. a - b
Mathematics
Add. 
A. 7 B. 8 C. 5 D. 6
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