Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation. x + 3y = -8 21x + 6y = 3
A. (-3, 1)
B. (3, -1)
C. (1, -3)
D. (-1, 3)
Answer: C
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Find the first four nonzero terms in the Maclaurin series for the function.f(x) = x sin(2x)
A. 2x - 2x3 + 
x5 - 
x7 + . . .
B. 2x - 
x4 + 
x6 - 
x8 + . . .
C. 2x2 + 
x4 + 
x6 + 
x8 + . . .
D. 2x2 - 
x4 + 
x6 - 
x8 + . . .
Match the function with its graph.f(x) = -x2 - 6x - 5
A. 
B. 
C. 
D. 
Solve the problem.On a map of the Thunderbird Country Club golf course, 1.5 inches equals 60 yards. How long is the 13th hole if the map shows 10 inches?
A. 600 yd B. 9.0 yd C. 900 yd D. 400 yd
Assume you have a digraph with 5 vertices (A, B, C, D, and E) and 9 arcs. B is incident from D, E, and A; C is incident to E and A and incident from D; E is incident to D and incident from A.Vertex B has
A. indegree 1, outdegree 2. B. indegree 2, outdegree 1. C. indegree 3, outdegree 0. D. indegree 0, outdegree 3. E. none of these