Find the partial derivative.Find fx(7, -8) when f(x,y) = 7x2 - 9xy.

A. -161
B. 170
C. -26
D. 26


Answer: B

Mathematics

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Approximate the natural logarithm with a scientific calculator. Round to four decimal places.ln 12,600,000

A. 4.8363 B. 16.3492 C. 7.1004 D. 0.0610

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Simplify.(-4x6)(-6x2)

A. -24x8 B. 24x12 C. -24x12 D. 24x8

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Find the slope of the line.x = -8y

A. m = 
B. m = 8
C. m = - 
D. m = -8

Mathematics