Evaluate the integral.
A. 19 sin x - 19x cos x + C
B. 19 sin x - x cos x + C
C. 19 sin x - 19 cos x + C
D. 19 sin x + 19x cos x + C
Answer: A
Mathematics
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Use a graphing calculator to find the vertex of the graph of the function.f(x) = x2 + x + 3
A. (-0.5, 3) B. (-0.5, 2.75) C. (0.5, 2.75) D. (0.5, -2.75)
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Add or subtract.-
- 
A. - 12
B. - 10
C. 12
D. - 12
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Find the perimeter and the area of the figure.
A. perimeter: 60 mi; area: 675 sq mi B. perimeter: 120 mi; area: 675 sq mi C. perimeter: 675 mi; area: 120 sq mi D. perimeter: 120 mi; area: 1350 sq mi
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Solve the inequality and graph the solution set on a number line.3x + 6 < 4(x + 2)
A. (-2, ?)
B. (14, ?)
C. (-?, -14)
D. (-?, 2)
Mathematics