Find the foci of the given hyperbola.9x2 - y2 = 9
A. (0, 
), (0, -
)
B. (0, 3), (0, -3)
C. (3, 0), (-3, 0)
D. (
, 0), (-
, 0)
Answer: D
Mathematics
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Find the special product.
?
?
A. 
B. 
C. 
D. 
E. 
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Find the second-order partial derivative.Find fxy when f(x,y) = 8x3y - 7y2 + 2x.
A. 48xy B. -14 C. -28 D. 24x2
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Perform the indicated operation.
+ 
A. 10
B. 
C. 5
D. -5
Mathematics
Identify the coefficient of the term 
.
A. 
B. 
C. 
D. 
E. 
Mathematics