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Math 1314 Lab 4 3.) A midwestern city had a population of 950,000 in 2004. The population, which follows A(t) 950000e exponential model, decreased 7.63% per year. The population growth model is therefore a. If the model continues to be accurate, what will the population be in 2014? b. When will the population be 375,000? Show work. 4) Lynsey invests $3000 in a bond trust that pays 8% interest compounded semiannually. She lets her money earn interest for 20 years. Her friend Lyla invests $2500 in a certificate of deposit that pays 7.75% compounded monthly. She lets her money earn interest for 23 years. Which girl made the most money? Show use of formulas. Which girl starts her investment with the most money? Which girl has the highest interest rate? Which girl has more frequent compounding for her investment? Which girl lets her money earn interest for a longer amount of time? Calculate how much each girl has at the end of her investment period Lynsey Lyla: Which girl ended up with the larger amount of money? Professor Langford Page 3
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