Solve the problem.Let n(A) = 15, n(A ? B) = 43, and n(A ? B) = 11. Find n(B).
A. 39
B. 38
C. 28
D. 40
Answer: A
Mathematics
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Solve for x.2-3x + 5 = 
A. x = 8
B. x = 3
C. x = -3
D. x = 
Mathematics
Simplify the expression. Assume that all variables represent nonnegative numbers.
- 7
- 2
A. -51
B. -9
C. -51
D. -9
Mathematics
Arrange in descending powers of x.-2x3y + 4xy3 + 5x2y2 - 6x4
A. 4xy3 + 5x2y2 - 2x3y - 6x4 B. -6x4 + 4xy3 + 5x2y2 - 2x3y C. -6x4 - 2x3y + 5x2y2 + 4xy3 D. -2x3y + 5x2y2 + 4xy3 - 6x4
Mathematics
Determine the number of terms and identify the coefficient of each term of the expression.-5z
A. 1; -5 B. 1; 5 C. 1; -5z D. 2; 5z
Mathematics