Solve the system. x + 3y + 2z = 11 4y + 9z = -12x + 7y + 11z = -11
A. (0, 3, 1)
B. (7, -1, -1)
C. (1, 6, -4)
D. No solution
Answer: D
Mathematics
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Simplify the following rational expression.
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A. 
B. ?
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E. ?
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Simplify the expression.
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B. 
C. 
D. 
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Solve the problem.The minute hand of a clock is 13 inches long. What distance does its tip move in 16 minutes? Give an exact answer.
A. 
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B. 
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C. 
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D. 
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Mathematics
Use the two-way frequency table to solve the problem.A sample of 350 students was selected and each was asked the make of their automobile (foreign or domestic) and their year in college (freshman, sophomore, junior, or senior). The results are shown in the table below.
What percent of seniors drive a domestic automobile?
A. 7.3% B. 71.4% C. 28.6% D. 4.3%
Mathematics