Find the constant of variation for the stated condition: y varies directly as x and inversely as z, and y = 63 when x = 27 and z = 3.
A. k = 7
B. k = 1,701
C. k = 9
D. 
E. 
Answer: A
Mathematics
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A. 
B. 
C. 
D. 
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Evaluate.-3x3 - 2x2 - 43 ; x = -2
A. -37 B. -15 C. -39 D. -27
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Graph the equation.y = x2 - 5
A. 
B. 
C. 
D. 
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Solve the polynomial inequality.(x + 7)(x2 - 25) > 0
A. (-7, 5) B. (-?, 5) ? (5, 7) C. (-7, -5) ? (5, ?) D. (-?, -5) ? (5, ?)
Mathematics