Find the second-order partial derivative.Find fyx when f(x, y) = ln
.
A. 
B. 
C. 
D. 
Answer: A
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Answer the question about traveling salesman problems.The diagram below shows the distances, in miles, between four cities: A, B, C, and D. A businessman must travel between all four cities, starting and ending in his home city, A. He wants to find the optimal tour. In this case, what is the "cost variable"?
A. distance traveled B. price to travel between cities C. size of the planes D. number of cities to go to E. travel time
Use the given graph of the quadratic function f to write its formula as 
.
A. f(x) = 
(x + 1)2 - 3
B. f(x) = 
(x - 1)2 - 3
C. f(x) = 2(x - 1)2 - 3
D. f(x) = (x - 1)2 - 3
Solve the problem.If u = 7i - 2j and v = -3i + 7j, find u - v.
A. 8i + 5j B. 10i - 9j C. 4i + 5j D. 9i + 5j
Fill in the blank.
angle measures between 0° and 90°.
A. A right B. An acute C. An obtuse D. A straight