Professor Mumford mumford@purdue.edu Econ 360 - Fall 2012 Problem Set 1 Answers True/False (30 points) 1. FALSE If (ai ‚ bi ) : i = 1‚ 2‚ . . . ‚ n and (xi ‚ yi ) : i = 1‚ 2‚ · · · ‚ n are sets of n pairs of numbers‚ then: n n n (ai xi + bi yi ) = i=1 i=1 ai x i + i=1 bi yi 2. FALSE If xi : i = 1‚ 2‚ . . . ‚ n is a set of n numbers‚ then: n n n n n (xi − x) = ¯ i=1 n i=1 2 x2 i − 2¯ x i=1 xi + i=1 x = ¯ i=1 2 x2 − n¯2 x i where x = ¯ 1 n i=1 xi 3. TRUE If xi : i = 1‚ 2‚ . .
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Questions: 1-1. The special function performed by the public accounting profession is the attestation to the fairness of the financial statements of clients. The special function ensures the reliability and integrity of the financial reporting system. Judge Burger described the special function as "certifying the public reports that collectively depict a corporation’s financial status‚" which involves "a public responsibility transcending any employment relationship with the client."
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Answers Chapter 1 c i No x-intercept‚ y = 4 iii y Pre-test 1 a 2x + 1 1 3 c x+ x= x 2 2 f 3x − 7 b 5(x − 1) 1 (x + 4) 3 -5ab -21x -4x + 4 3 ii 0 y=4 d 2x − 3 e a a a a 7x 8y 3x + 3 4m b b b b 6a 7 6 b 7 12 9 a 3 b -2 c 1 10 a y = 2x + 1 b y = -x + 5 c 4 7 d 19 72 Exercise 1A f 21 20 2 3 4 5 4 e 7 c c c c -5x 2 15a 2 -10x + 2x 2 a (0‚ 4) d g c 10 ii
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technology course per training session. (a) Identify the main entity types for the company. (b) Identify the main relationship types and specify the multiplicity for each relationship. State any assumptions you make about the data. (c) Using your answers for (a) and (b)‚ draw a single ER diagram to represent the data requirements for the company. Chapter 13 Extended Entity-Relationship Modelling 13.7- Describe the two main constraints that apply to a specialization/generalization
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containing the expiration of the hedge. The contracts that should be used are therefore a) July b) September c) March Problem 3.9. Does a perfect hedge always succeed in locking in the current spot price of an asset for a future transaction? Explain your answer. No. Consider‚ for example‚ the use of a forward contract to hedge a known cash inflow in a foreign currency. The forward contract locks in the forward exchange rate — which is in general different from the spot exchange rate. Problem 3.10. Explain
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PROBLEM 15.15 (WWWR) A 0.20-m-thick brick wall (k=1.3W/m•K) separated the combustion zone of a furnace from its surroundings at 25℃. For an outside wall surface temperature of 100℃‚ with a convective heat transfer coefficient of 18 W/m2•K‚ what will be the inside wall surface temperature at steady-state conditions? Solution : q k = Tw = h(Ts − Tsurrounding ) A L Tw = = h(Ts − Tsurrounding )i L k Tinside =? 0.2m Ts = 100°c (18W / m.k )(75k )(20 × 10−2 m) 1.3(W / m.k ) Tsurrounding
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taken from Dante’s Divine Comedy. It reads: “If I thought my answer were to one who could ever return to the world‚ this flame would move no more; but since no one has ever returned alive from this depth‚ if what I hear be true‚ without fear of infamy I answer you.” The words are spoken by a lost soul‚ damned to Hell for the attempt to buy absolution in advance of committing a crime. This correlates with Prufrock’s need to know the answer to the question he wants to ask as a condition of asking it
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property can be most completely defined as: | | Selected Answer: | (d) land‚ affixed to land‚ appurtenances‚ immovable by law | Correct Answer: | (d) land‚ affixed to land‚ appurtenances‚ immovable by law | | | | | Question 2 | 1 out of 1 points | | Zoning laws have the greatest impact on which "Right" in the Bundle of Rights? | | Selected Answer: | (a) right to use | Correct Answer: | (a) right to use | | | | | Question 3 | 1 out
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Sample answer 1） Malaysia is a multi-cultural country. Malays‚ chinese‚ Indians and many other ethnic groups have lived together in Malaysia for generations. All these cultures have influenced each other‚ creating a truly Malaysian culture. The largest ethnic groups in Malaysia are the Malays‚ chinese and Indians. Due to the exists of the different ethnic groups in Malaysia‚ a good communication between different races is very important in Malaysia. Therefore‚ the evolution of communication technology
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References: 1. White‚ F.M. Fluid Mechanics 4th Ed. McGraw Hill 2. McCabe‚ W.L.‚ Smith‚ J.C and Harriot Unit Operations of Chemical Engineering 5th Ed. McGraw Hill 3. Anthony Esposito. Fluid Mechanics with Applications. Prentice Hall International Inc. 4. Debler‚ W.R. Fluid Mechanics Fundamentals. Prentice Hall International Inc.
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