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. y = 24xz
B. y = 
C. y = 
D. y = 
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. 
Mathematics
Solve the problem.
=
A. 50 B. 1 C. 51 D. 39 E. none of these
Mathematics
Estimate by rounding.804 ÷ 18
A. 40 B. 30 C. 25 D. 55
Mathematics
Provide an appropriate response.Write the augmented matrix for the system. 6x1 + 4x2 = 30 8x2 = 72
A. 
B. 
C. 
D. 
Mathematics