AQR Population Growth & Decay 1/14
 Rowlett - population 2,500Assume that Rowlett's population is increasing by30% each year.  Find a single number which you couldmultiply the current population in order to find outwhat next year's population would be.  Then write anexpression that can be used to find the populationin future years "an".Multiplier: __________________Expression for future years:   an =           x           n-1 Sachse - population 1,000Assume that Sachse has a population growth of70% each year.  Find a single number which you couldmultiply the current population in order to find outwhat next year's population would be.  Then write anexpression that can be used to find the populationin future years "an".Multiplier: __________________Expression for future years:   an =           x           n-1 {HINT: Round to the 3rddecimal place if you can.}Now fill out a chart for the population growth ofRowlett. {HINT: Round to the 3rddecimal place if you can.}Now fill out a chart for the population growth ofSachse. Strontium-90 has a half-life of 25 years.  How long would it take 40 mg of it to decay to:A) 20 mgB) 1.25 mgyearsyears The half-life of palladiim-100 is 4 days.  In 16 days anintial sample has been reduced to a mass of 0.75 g. Determine the starting mass.grams Write an explicit function rule for this situation:                                     an =              x            n-1Include the 0 before decimalsA cup of coffee contains approximately 96 mg ofcaffeine.  When you drink the coffee, the caffeine isabsorbed into the bloodstreeam and eventuallymetabolized by the body.  Every 5 hours the amount ofcaffeine present in the body  is reduced by one-half. How many hours does it take for the amount of caffeineto be reduced to 12 mg?hours
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