Convert the equation to the standard form for a hyperbola by completing the square.4y2 - 16x2 + 16y - 64x - 112 = 0
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Answer: D
Mathematics
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Find all numbers for which the rational expression is not defined.
A. a = 7 B. None C. a = 0 D. a = -7
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Graph the set on a number line.(-3, 1]
A. 
B. 
C. 
D. 
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Express the interval in set builder notation and graph the interval on a number line.(-?, 2.5)
A. {
x < 2.5}
B. {
x ? 2.5}
C. {
x ? 2.5}
D. {
x > 2.5}
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Find the slope of the polar curve at the indicated point.r = 1 - sin ?, ? = 
A. undefined
B. 2
C. 
D. 
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