Solve the problem.
In a school survey, students showed these preferences for instructional materials.About how many students would you expect to prefer lectures in a school of 450 students?
A. About 18 students
B. About 162 students
C. About 81 students
D. About 90 students
Answer: C
Mathematics
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Find the first partial derivatives of the function.
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A. 
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B. ?
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C. ?
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D. ?
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Mathematics
Find an equation for the line with the given properties.Parallel to the line 5x + 9y = 29; containing the point (4, -8)
A. 4x + 9y = 29 B. 5x - 9y = -52 C. 9x + 5y = -8 D. 5x + 9y = -52
Mathematics
Find the area of the region bounded by the graphs.
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1) 
2) 
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A. 
B. 
C. 
D. 
E. 
Mathematics
Use a graphing calculator to solve the equation. Round your answer to two decimal places.ex = x2 - 1
A. {0} B. {2.54} C. {-0.71} D. {-1.15}
Mathematics