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Why does the inequality sign change when both sides are multiplied or divided by a negative number? does this happen with equations? why or why not?
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Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.
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Mathematics, 21.06.2019 19:30
What is the result of adding the system of equations? 2x+y=4 3x-y=6
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Mathematics, 21.06.2019 21:50
Which of the following is the graph of y= square root -x-3
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Why does the inequality sign change when both sides are multiplied or divided by a negative number?...
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