Find the second-order partial derivative.Find 
when z = exln ?y?.
A. 
B. - 
C. 
D. - 
Answer: B
Mathematics
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Simplify.-
A. 
B. - 
C. -1
D. - 
Mathematics
Use algebraic and/or graphical methods to solve the inequality.(2x + 7)(x - 8)(3x - 7) ? 0
A. - 
< x < 
or x > 8
B. - 
? x ? 
or x ? 8
C. x ? - 
or 
? x ? 8
D. x < - 
or 
< x < 8
Mathematics
Determine whether the equation defines y as a function of x. y = 
A. function B. not a function
Mathematics
By using a graphing utility select the correct graph of the polar equation. Identify the graph.
?
?
A. ?
Hyperbola
B. ?
Hyperbola
C. ?
Hyperbola
D. ?
Hyperbola
E. ?
Hyperbola
Mathematics