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Math 1201 Unit 5.1 Essay

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MATH 1201: COLLEGE ALGEBRA WRITTEN ASSIGNMENT UNIT 5 1. What must be invested today, to be worth $20,000 in 10 years, if it is compounded yearly at 8%? Solution: The given equation→ →A = P (1+r/n)nt →A=20000 →r=.08 →n=1 →t = 10 →$20,000 = P (1+.08)10 →P = 20000/ (1.08)10 →P = $9,263.87 Today’s investment would be the amount of $ 9,263.87 to get compound yearly at 8% for 10 years. 2. Write as a sum or difference of simple (single symbol argument) logs: Log [(AB)/ (CD)] Solution: →Log [(AB)/ (CD)] → = Log (AB) - Log (CD) → = Log (A) + Log (B) - (Log(C) + Log (D)) → = Log (A) + Log (B) - Log(C) - Log (D) 3. The half-life of carbon 14 is 5730 years. How old is a bone containing 20% of its original carbon 14? Solution: The

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