Verify the identity.
= 
What will be an ideal response?
= 
= 
? 
=
.
Mathematics
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Find all the first order partial derivatives for the following function.f(x, y) = ln yx
A. 
= ln y; 
= - xln y
B. 
= xln y; 
= - 
C. 
= ln y; 
= 
D. 
= 0; 
= - 
Mathematics
Solve the problem.Suppose that y is inversely proportional to x and that y = 5.5 when x = 11. Find the constant of proportionality k. Then, find y when x = 6.
A. k = 24.2; y = 
B. k = 60.5; y = 
C. k = 12.1; y = 
D. k = 0.5; y = 3
Mathematics
Find the difference.-7 - 12
A. -19 B. 19 C. -5 D. 5
Mathematics
Place the given fractions in order from smallest to largest.
, 
, 
, 
, 
, 
A. 
, 
, 
, 
, 
, 
B. 
, 
, 
, 
, 
, 
C. 
, 
, 
, 
, 
, 
D. 
, 
, 
, 
, 
, 
Mathematics