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Find the equation of the function y= a/(1+be^(-kt)) with a y-intercept of 1/11, inflection point at...

Find the equation of the function y= a/(1+be^(-kt)) with a y-intercept of 1/11, inflection point at t=ln(10)/0.5 and k=0.5. Find the values of a, b and then clearly write out the function y.

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