Find the standard-form equation for a hyperbola which satisfies the given conditions.A hyperbola of eccentricity 
having a focus at (9 +
, -2) and corresponding directrix 
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Answer: D
Mathematics
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What is the exact volume for the solid that results when the semicircular region shown is rotated about its diameter of length 6 inches?
What will be an ideal response?
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Find an equation of variation in which y varies inversely as x and the following is true.y = 33, when x = 5
A. y = 
B. y = 
C. y = 
D. y = 6.6x
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Select the system of linear equations represented by the following augmented matrix.
?
?
A. ?
B. ?
C. ?
D. 
E. ?
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