Solve the problem.Find k such that the line kx + 23y = 4 is perpendicular to the line through (5, -8) and (2, 4).

A. k = 92
B. k = 5.75
C. k = -5.75
D. k = -92


Answer: C

Mathematics

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A. -9 
B. 9 
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A. x2 - 18x + 7 = 0 B. x2 - 18x - 7 = 0 C. x2 - 7x - 18 = 0 D. x2 + 7x - 18 = 0

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A. 33
B. 4
C. 1
D.

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A. -24 B. 24 C. 0 D. 48

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