Subtract and simplify. Write the answer as a mixed number as needed.13
- 7
A. 5
B. 4
C. 5
D. 6
Answer: A
Mathematics
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Evaluate the integral.
A. sin-1 (x + 2) + C
B. (2x + 4) ln |x2 + 4x + 20| + C
C. 
tan-1 
+ C
D. 
sin-1 
+ C
Mathematics
Determine whether the sequence of vertices is i) a walk, ii) a path, iii) a circuit in the given graph.
L ? H ? G ? F ? B
A. Walk, path, and circuit B. Walk only C. None of these D. Walk and path
Mathematics
Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics
Solve.Two plumbers make house calls. One charges $90 for a visit plus $40 per hour of work. The other charges $70 per visit plus $50 per hour of work. For how many hours of work do the two plumbers charge the same?
A. 2 hr B. 2.5 hr C. 1.5 hr D. 1 hr
Mathematics