NAME: SECTION #: MATH 142, Spring 2015 Seat #: February 3, 2015 QUIZ 2 (TAKE HOME QUIZ) GOOD LUCK • Show all your work and indicate your final answer clearly. You will be graded not merely on the final answer, but also on the work leading up to it. 1. A computer purchased in 2015 for $2,500 depreciates linearly over 10 years. If the salvage value of the computer is $250, what will it be worth in 2020? What is the rate of depreciation? 2. A manufacturer of phones has a monthly fixed cost of $15,000 and a production cost of $200 for each phone manufactured. The units sell at $650 each. What are the cost function, revenue function, and profit function? NAME: SECTION #: MATH 142, Spring 2015 3. Solve for x: 25x 4x−1 = 83 4. Find the domain: 5. Evaluate log3 (10) √ 3 x+9 log2 (5x + 2) Seat #: February 3, 2015

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