A mathematical model for world population growth over short intervals is given by P P, e", where P, is the population at time t= 0, r is the continuous compound rate of growth, t is the time in years, and P is the population at time t. How long will it take the world population to quadruple if it continues to grow at its current continuous compound rate of 1.01% per year? Substitute the given values into the equation for the population. Express the population at timet as a function of Po- Po =Poe (Simplify your answers.) 6.

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