Mathematics, 27.10.2021 15:30 bella122805
A mine worker discovers an ore sample containing 500mg of radioactive materials. It is discovered that the radioactive material has a half-life of 2 days. Find the amount of radioactive material in the sample in the beginning of the 14th day.
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Complex numbers multiply β-4 * β-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).
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Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?
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Which best describes a central bank's primary goals? limiting inflation and reducing unemployment reducing unemployment and maintaining cash flow controlling stagflation and reducing unemployment managing credit and ensuring the money supply's liquidity
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