Solve the problem.A rectangular piece of cardboard measuring 12 inches by 40 inches is to be made into a box with an open top by cutting equal size squares from each corner and folding up the sides. Let x represent the length of a side of each such square. For what value of x will the volume be a maximum? If necessary, round to 2 decimal places.
A. 29.18 in.
B. 14.59 in.
C. 16.53 in.
D. 2.74 in.
Answer: D
Mathematics
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and outside 
A. 9
B. 9
C. 9
D. 9
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Find the probability.If a person is randomly selected, find the probability that his or her birthday is not in May. Ignore leap years.
A. 
B. 
C. 
D. 
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Add or subtract.15
- 8
A. 22
B. 23
C. 6
D. 6
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Provide an appropriate response.
Find b rounded to four significant digits if a = 0.198 mm and B = 62°.
A. 0.09296 mm B. 0.1748 mm C. 0.3724 mm D. 0.1053 mm
Mathematics