Find all the second order partial derivatives of the given function.f(x, y) = x ln (y - x)
A. 
= 
; 
= - 
; 
= 
= 
B. 
= 
; 
= - 
; 
= 
= 
C. 
= 
; 
= - 
; 
= 
= - 
D. 
= 
; 
= 
; 
= 
= 
Answer: A
Mathematics
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Solve the inequality.x2 + x - 7 ? 0
A. 
? x ? 
B. x ? 
or x ? 
C. All real numbers
D. No solutions
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Determine which fractions are proper.
, 
, 
, 
, 
A. 
, 
, 
B. 
, 
, 
, 
C. 
, 
, 
, 
, 
D. 
, 
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Determine if the number is prime, composite, or neither.2
A. Composite B. Prime C. Neither
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Solve the problem.A football player with a field goal kicking percentage of 60% for kicks of 40 yards or less attempts a final-minute field goal of 32 yards. What are the odds of a successful kick?
A. 5 : 3 B. 3 : 5 C. 2 : 3 D. 3 : 2
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