Solve the problem.Find the value of k so that the graph of 27y + kx = 4 and the line containing the points (5, -8) and (2, 4) are perpendicular.
A. k = 6.75
B. k = -6.75
C. k = 108
D. k = -108
Answer: B
Mathematics
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Evaluate.- 
; m = -7, n = 3
A. -6 B. -1 C. -10 D. -3
Mathematics
Find the vertices and graph the hyperbola.x2 - 16y2 = 64
A. (-2, 0), (2, 0)
B. (0, -8), (0, 8)
C. (-8, 0), (8, 0)
D. (-2, 0), (2, 0)
Mathematics
Model the problem with a linear equation.An investment is worth $3104 in 2008. By 2011 it has grown to $3950. Let y be the value of the investment in the year x, where x = 0 represents 2008. Write a linear equation that models the value of the investment in the year x.
A. y = -282x + 4796
B. y = 282x + 3104
C. y = -282x + 3104
D. y = 
x + 3104
Mathematics
Simplify the expression using order of operations.(-0.3)2 + (-0.4)2 + (-0.4)
A. -0.15 B. 0.15 C. -0.65 D. 0.65
Mathematics