- Cobalt 60 has a half life of 5 years. how many grams of a 300 g sample will remain after 20 years?

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In Newtonian relativity theory doesn't all frames of references start at a zero point of time? If F1(x) is the inverse of F(x), what is the value of F1(F(x)) ? 0, 1 , x-1, or x ?? HELPP PLEASE !!!!? Using the following equation how many grams of pure oxygen do you need to comsume 816.0g of glucose: C6H12O6 + 6O2 → 6CO2 + 6H2O + energy? What if math rules didn t exist? If y = −4x^2 + kx − 1, determine the value(s) of k which the maximum value of the function is an integer. Explain your reasoning.?