Find the second-order partial derivative.Find 
when z = exln ?y?.
A. - 
B. exln ?y?
C. 
D. -exln ?y?
Answer: B
Mathematics
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Solve.A wicker basket has a circular rim with a diameter of 12 inches. How many inches of ribbon are needed to go once around the rim? Round results to the nearest tenth of a unit.
A. 37.7 in. B. 144.0 in. C. 35.7 in. D. 75.4 in.
Mathematics
Evaluate.Evaluate x + y, if x is 7 and y is 2.
A. 7x + 2y B. 10 C. 14 D. 9
Mathematics
Solve the equation in the real number system.x4 - 12x2 - 64 = 0
A. {-8, 8} B. {-4, -2, 2, 4} C. {-4, 4} D. {-2, 2}
Mathematics
Establish the identity.cot(2?)= 
What will be an ideal response?
Mathematics