Express as a single logarithm, and, if possible, simplify.logw (x2 - 4) - logw (x - 2)
A. logw (x2 - 4)(x - 2)
B. logw (x + 2)
C. logw 
D. 
Answer: B
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Use the theorem that relates the sum of degrees to the number of edges to determine the number of edges in the graph.A graph with 5 vertices, three of degree 2 and two of degree 1.
A. 3 edges B. 8 edges C. 7 edges D. 4 edges
Sketch the graph of the quadratic function. Give the vertex and axis of symmetry.f(x) = -x2 - 5
A. vertex (5, 0); axis x = 5
B. vertex (-5, 0); axis x = -5
C. vertex (0, -5); axis x = 0
D. vertex (0, 5); axis x = 0
Scores in golf can be 0 (also called par), a positive integer (also called above par) or a negative integer (also called below par). Below are the scores of some members of a college golf team in a recent tournament. 
Find the average of the scores of the members shown.
A. 0 B. 2 C. -1 D. 1
Solve the problem.The width of a rectangle is 6 kilometers less than twice its length. If its area is 176 square kilometers, find the dimensions of the rectangle.
A. length = 3 km, width = 
km
B. width = 11 km, length = 16 km
C. length = 11 km, width = 16 km
D. length = 8 km, width = 10 km