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Mathematics, 21.06.2019 13:30
Ametalworker has a metal alloy that is 30? % copper and another alloy that is 55? % copper. how many kilograms of each alloy should the metalworker combine to create 90 kg of a 50? % copper? alloy?
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Mathematics, 21.06.2019 20:30
Find the value of x for which line a is parallel to line b
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Mathematics, 21.06.2019 22:30
Which of the following circles have their centers in the third quadrant? check all that apply.
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Mathematics, 22.06.2019 04:30
Find the exact value of cos(arcsin( one fourth for full credit, explain your reasoning. (2 points)
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