Match the equation with the surface it defines.x2 + y2 = 81 
A. Figure 4
B. Figure 3
C. Figure 1
D. Figure 2
Answer: D
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Find f ? g.f(x) = x2 - x - 5, g(x) = x - 1
A. x3 - 2x2 - 6x - 5 B. x3 - 4x + 5 C. x3 - 2x2 - 4x + 5 D. x3 - 2x2 - 5x + 5
Solve the problem.James, Carl, Mark, Antonio, Phillip, and Brad are friends at college. James, Antonio and Phillip have calculus together. Brad and Carl have the same English composition class. Draw a graph with vertices representing students and edges representing the relation "take a common class". How many components does the graph have? Identify a subgraph that is a complete subgraph with three vertices.
What will be an ideal response?
Solve the rational inequality. Write the solution in interval notation.
> 0
A. (3, ?) B. (-?, -6) ? (3, ?) C. (-6, 3) D. (-?, -6)
Find the area under the graph of 
over the interval [2, 3] .
What will be an ideal response?