Find the standard-form equation for a hyperbola which satisfies the given conditions.A hyperbola centered at the origin having focus at (12, 0) and eccentricity equal to 
A. 
+ 
= 1
B. 
- 
= 1
C. 
+ 
= 1
D. 
- 
= 1
Answer: B
Mathematics
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A. 81 - 24i B. 84 - 9i C. -84 + 9i D. 45i3 + 84i2 + 36i
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Find any numbers for which the rational expression is undefined.
A. x = -7 B. x = 0 C. none D. x = 7
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Determine whether the two lines are parallel, perpendicular, or neither parallel nor perpendicular. 3x - 6y = -1518x + 9y = 15
A. Parallel B. Perpendicular C. Neither
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Find the slope of the line. 
A. 3 B. -1 C. 1 D. -3
Mathematics