Find an equation of variation in which the following are true.y varies directly as x and inversely as z, and y = 6 when x = 2 and z = 7.

A. = 24xz
B. = 
C. = 
D. = 


Answer: C

Mathematics

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Solve the quadratic equation by factoring.3x(x - 5) = 5x2 - 16x

A.
B. {0, 2}
C. {0}
D.

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Solve the problem. =

A. 50 B. 1 C. 51 D. 39 E. none of these

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Estimate by rounding.804 ÷ 18

A. 40 B. 30 C. 25 D. 55

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Provide an appropriate response.Write the augmented matrix for the system. 6x1 + 4x2  = 30  8x2  = 72

A.
B.
C.
D.

Mathematics