m119+q2+spr2010+key

m119+q2+spr2010+key - your money in 11 years Assume that...

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M119 Quiz 2 Spring 2010 Key No graphing calculators . 1. $2000 is deposited into an account that pays 4.5% interest compounded annually. How much will the account be worth after 12 years? 12 ) 045 . 1 ( 2000 $3391.76 2. Assume that caffeine leaves the body at a continuous rate of 23% per hour. Find the half-life of caffeine. Give at least 3 decimal places in your answer and include units. K=-0.23 t e 23 . 0 2 1 = Solve for t 3.014 hours 3. You deposit money into a money market account. What interest rate is needed if you want to double
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Unformatted text preview: your money in 11 years? Assume that interest is compounded continuously. Give at least 3 decimal places in your answer ) 11 ( 2 k e = Solve for k 6.301% 4. A company produces clocks that sell for $45 each. Fixed costs are $3000 and variable cost per clock is $21.50. Write the revenue function q q R 45 ) ( = Write the total cost function q q C 50 . 21 3000 ) ( + = Write and simplify the profit function 3000 50 . 23 ) ( − = q q π What is the break-even point for the company? 128 clocks...
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