In a given company ×, y, z represent weekly hours of labor, amount of daily capital invested in dollars and machinery pu

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answerhappygod
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In a given company ×, y, z represent weekly hours of labor, amount of daily capital invested in dollars and machinery pu

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In a given company ×, y, z represent weekly hours of labor, amount of daily capital invested in dollars and machinery purchased in a year, respectively; and the productivity function for a given item is given by:
P(x,y,z) =0.04x^2 + 0.02y^2 + 0.01z^2 +
0.0013xy
For x = 500, y = 450, Z = 50 it is given that:
Increasing the amount of capital by two dollars increases productivity by (I need the answer) units.
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