Find the second-order partial derivative.Find fxy when f(x, y) = xy2 + yex2 + 5.
A. 2yex2
B. 2y + 2xex2
C. 2xex2
D. y + xex2
Answer: B
Mathematics
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Simplify.(-10x5y)(-6x2y3)
A. -16x7y3 B. 60x10y3 C. -60x7y3 D. 60x7y4
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Solve the problem.Shari enjoyed services at a spa. The total cost of these services was $310. If she decides to leave a 9% tip, how much should the tip be? Round your answer to the nearest cent.
A. $24.80 B. $27.90 C. $279.00 D. $31.00
Mathematics
Factor.320x2 - 125
A. (8x + 5)(40x - 25) B. 5(8x + 5)(8x - 5) C. 5(8x - 5)2 D. (40x + 25)(8x - 5)
Mathematics
Find the average rate of change for the function between the given values.f(x) = 3x - 6; from 1 to 2
A. -3 B. 6 C. 3 D. -6
Mathematics