A medical equipment Industry manufactures Xray machines. The unit cost the cost in dollars to make each X-ray machine) depends on the number machines made machines are made, then the unit cost is given by the function C(x)=0.1x^ 2 -68x+26,153, . What the minimum unit cost Do not round your answer

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Planet earth has a mass of 5.9726x10²⁴ kg.then: 5.9726x10²⁴ kg=100% of the total earth mass.if the water´s mass=5x10-4 % of the total mass, we can solve this problem by the rule of three.5.9726x10²⁴ %*10⁻⁴ %x=(5.9726x10²³ kg)(5*10⁻⁴  %) / 100 %=2.9863x10¹⁹ kganswer:   the mass of the planet´s water would be   2.9863 x 10¹⁹ kg.