Decide whether or not the ordered pair is a solution of the system.(-5, 6)4x + y = -263x + 4y = -39

A. Yes
B. No

Answer: B

Mathematics

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Simplify the expression by combining like terms.-1.2x3 - 1.5x3 - 0.4x3

A. -4.3x3 B. -15x3 C. Cannot be simplified D. -3.1x3

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Solve the system of equations by graphing.2x - y = 3  y = 1  

A. (1, 2) B. (2, 1) C. (-2, -1) D. no solution

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Use the prime factorization method to find the LCM of the variable expressions.9mn and 12m2n

A. 108m2n B. 108mn C. 36m2n D. 36mn

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Rewrite with rational exponents.7

A. (4x2y)3/7
B. 7/3
C. 7
D. (4x2y)7/3

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Mathematics