Solve the inequality 
. Restrict your attention to positive values of x. Round your answer to two decimal places.
?
A. ?
B. 
C. ?
D. ?
Answer: B
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Solve the problem.Find the volume of the solid generated by revolving the region in the first quadrant bounded by the x-axis and the curve y = sin 2x, 0 ? x ? ?/2 about the line x = ?/2.
A. 
B. 
?2 - ?
C. 
?
D. 
?2
Solve.x2 + y2 = 36x2 - y2 = 36
A. (0, -6) B. (6, 0) and (-6, 0) C. (6, 0) D. (0, 6) and (0, -6)
Solve the problem.A pharmaceutical company claims that the concentration of a drug in a patient's bloodstream will be at least 25% for 8 hours. Suppose that clinical tests show that the concentration of the drug (as a percent) t hours after injection is given by 
During what time period is the concentration at least 25%?
A. 1 hours ? t ? 5 hours B. 0 hours ? t ? 8 hours C. 1 hours ? t ? 9 hours D. 2 hours ? t ? 10 hours
Solve the problem.A ceramics workshop makes wreaths, trees, and sleighs for sale at Christmas. A wreath takes 3 hours to prepare, 2 hours to paint, and 8 hours to fire. A tree takes 14 hours to prepare, 3 hours to paint, and 4 hours to fire. A sleigh takes 4 hours to prepare, 13 hours to paint, and 7 hours to fire. If the workshop has 117 hours for prep time, 71 hours for painting, and 101 hours for firing, How many of each can be made?
A. 7 wreaths, 6 trees, 3 sleighs B. 6 wreaths, 3 trees, 7 sleighs C. 8 wreaths, 7 trees, 4 sleighs D. 3 wreaths, 7 trees, 6 sleighs