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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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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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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Flemmings D. Robert Hook 9. Which type of soli has 70% sand‚ 20% slit and 10% clay? A. Sandy Soil B. Humus C. Loam D. Top Soil 10. Which Period do human lives in A. Cambrian B. Jurassic C. Tertiary D. Quaternary Section 2 A. Answer all the questions in this sections. Fill in the blanks . ( 16 marks) 1. Theory suggest that our solar system has been formed because of an explosion a.) Name the planet in our solar system that i) Has plants. Animals and microorganisms living on
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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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Nutrition quiz & tests questions and answers: Syllabus quiz: The online interactive discussion activities are very important because the points earned are worth 15% of your final grade. True The graded work under "quizzes" are timed and based on real-time‚ not logged in time. This means if you click on "start quiz" at 10am on Monday‚ you must hit the "submit" button on the quiz: by 2pm that same Monday in order to earn those points. There are 8 different quizzes offered during the term
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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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PROBLEM: The “R” sound In Portuguese‚ R at the beginning of words‚ at the end of words‚ or before a consonant is pronounced like H. Many Brazilian students carry this habit into English words‚ pronouncing “restaurant” as “hestaurant” and “far” as “fah.” It’s especially common when the English word and the Portuguese word are similar‚ such as in “restaurant” and “regular.” SOLUTION: First‚ I have my students work on pronouncing the English R sound by itself. I demonstrate the correct mouth position
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International Classification of Diseases Tenth Revision Procedure Coding System (ICD-10-PCS) An Applied Approach 2013 Update for use with 2012 Edition Revisions and Exercise Answer Key Lynn M. Kuehn‚ MS‚ RHIA‚ CCS-P‚ FAHIMA Therese M. Jorwic‚ MPH‚ RHIA‚ CCS‚ CCS-P‚ FAHIMA ICD-10-PCS Flashcards The first step in mastering ICD-10-PCS is to become familiar with the terminology‚ structure and format of this new code set. In addition to the Flash Card software program found on the
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Introduction: In “The Democratic Answer: The Justification of the State Is Its Promotion of Security and Natural Human Rights” by John Locke discuss that in the state of nature people are allowed to take and have everything they want‚ but at the end it is always unsafe. People join societies because there is protection and security of what they have. In the state of nature people are biased and ignorant‚ therefore with a democratic government‚ decisions are made based on what the majority of the
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