Simplify.
A. 0
B. 1
C. -1
D. -16
Answer: C
Mathematics
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Give an appropriate answer.If f(x, y, z) = exyz find fz(x, y, z).
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Factor the trinomial by grouping.4x2 - 4x - 35
A. (2x + 7)(2x - 5) B. (2x - 7)(x + 5) C. (2x - 7)(2x + 5) D. prime
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Solve the system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(-1, 3)} B. {(0, 2)} C. no solution; ? D. {(0, 3)}
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Complete the table for the equation.y = -x - 6 
A. 1; -9; -6 B. 1; 0; -6 C. -9; 0; -6 D. -9; 0; 0
Mathematics