Solve the equation.5(2z - 4) = 9(z + 5)

A. {25}
B. {30}
C. {-25}
D. {65}

Answer: D

Mathematics

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Solve the problem.At what points on the graph of y = 13x - x2 is the slope of the tangent line equal to 1?

A. (1, 12) B. (6.5, 42.25) C. (6, 42) D. (12, 84)

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Find the roots of the equations. = 

A. -6 B. -8 C. 8 D. 6

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Add or subtract, as indicated.(4x2y - 6xy) - (6x2y + 4xy2) - (2xy + 4xy2)

A. -6x2y - 4xy2 - 8xy B. -2x2y - 8xy2 - 8xy C. -2x2y + 8xy2 - 8xy D. -2x2y + 8xy2 - 4xy

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Mathematics

Divide. Simplify if possible. รท 

A.
B.
C.
D. y - 12

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Mathematics