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 750 students?
A. About 270 students
B. About 135 students
C. About 150 students
D. About 18 students
Answer: B
Mathematics
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Find the derivative of y with respect to x.y = 3 sin-1 (5x4)
A. 
B. 
C. 
D. 
Mathematics
Fill in the missing factor.x2 - 3xy - 54y2 = (x + 6y)( )
A. -x - 9y B. x + 9 C. x - 9y D. x + 9y
Mathematics
Solve the system of equations graphically. If the system does not have a single ordered pair as a solution, state whether the system is inconsistent of dependent.4x + 3y = 293x - 2y = -8
A. (7, 2)
B. No solution, inconsistent
C. (2, 7)
D. (4, -20)
Mathematics
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 42 ? 45
A. 262,144 B. 16,777,216 C. 16,384 D. 1,048,576
Mathematics