Evaluate the required second order partial derivative.Find fxy(2, 5), if f(x, y) = -5x3y2 + 2x4 + 5xy3.

A. -840
B. -1570
C. -1440
D. -225


Answer: D

Mathematics

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Fill in the blank with one of the words or phrases listed below. A(n)  is made up of two rays that share the same endpoint. The common end point is called the .

A. adjacent; vertex B. adjacent; vertical C. angle; vertex D. angle; vertical

Mathematics

Round the number to the place indicated.Round to the nearest tenth: 12.956

A. 12.96 B. 12.9 C. 13.1 D. 13.0

Mathematics

Graph the set of numbers on a number line.

A.

B.

C.

D.

Mathematics

Solve the system.3x + 2y + z = 42x - 3y - z = 55x + 12y + 5z = 2

A. Infinitely many solutions B. No solution C. (-4, 5, -2) D. (4, 5, 2)

Mathematics