Find the differential of the function at the indicated number.
Mathematics
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Use the limit definition of the partial derivative to compute the indicated partial derivative of the function at the specified point.Find 
at the point (-9, -4): f(x, y) = 10 - 5xy + 4xy2
What will be an ideal response?
Mathematics
Find the product.(2m3z4)(3m4z2)
A. 6m7z6 B. 6mz6 C. 6m7z D. 6mz7
Mathematics
For an arc length s, area of sector A, and a central angle ? of a circle of radius r, find the indicated quantity.r = 81.6 cm, ? = 
radians, find A
A. 417 cm2 B. 16.1 cm2 C. 2,620 cm2 D. 1,310 cm2
Mathematics
Find the acute angle ?, to the nearest hundredth of a degree, for the given function value.sec ? = 6.965
A. 8.25° B. 81.74° C. -8.17° D. 8.17°
Mathematics