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Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b
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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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Does 9q + 7 also equal 7 + 9q ? (simplifying algebraic expressions)
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(2sinx+3cosx)²+(3sinx-2cosx)²=13 prove plz...
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