Find the area of the shaded region of the figure. Use 3.14 for ? as necessary.
A. 40 in.2
B. 16 in.2
C. 48 in.2
D. 24 in.2
Answer: D
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Evaluate the improper integral or state that it diverges.
A. ? + 5
B. 0
C. 
D. 
Perform the requested operation on the given function.f(x) = x + 1, g(x) = x + 3Find (f + g)(3).
A. 4 B. 10 C. 8 D. 2
Solve.A standard train ticket in a certain city costs 
per ride. People who use the train also have the option of purchasing a frequent rider pass for 
each month. With the pass, a ticket costs only
per ride. Use an inequality to determine the number of train rides in a month for which purchasing the monthly pass is more economical than purchasing the standard train ticket.
A. 22 or more times B. 25 or more times C. 24 or more times D. 23 or more times
Solve the quadratic equation by completing the square.x2 = 7 - 4x
A. -1 ± 
B. -2 ± 2
C. -2 ± 
D. 2 + 