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What is the last digit of 1⁵ + 2⁵ + 3⁵ + ... + 2012⁵ + 2013⁵? With a mean of 1252 and a standard deviation of 129 what percentile is 1000 in? In the problem: 5x(x+1)^2 = 5x^3+10x^2+5x Please explain how this +10x is factored out of the original equation.? Check my Algebra 2 work ??!!? Enthalpy change for the reaction given below:?