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Question 4. Describe how each of the following factors might explain why PPP is a better guide for exchange rate movements in the long run versus the short run: (i) transactions costs, (ii) nontraded goods, (iii) imperfect competition, (iv) price stickiness. As markets become increasingly integrated, do you suspect PPP will become a more useful guide in the future? Why or why not? (10 marks, 2.5 marks for each sub-question)

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Select the CORRECT definition regarding interactions between hosts and microbes. Parasitism--relationship between two organisms in which one partner benefits and the other is harmed. Secondary infection--infection in a previously healthy person, such as measles in a child who has not had measles before. Immunocompetent--having a weakness or defect in the innate or adaptive defenses.

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Given the following function: f(x) = \sqrt{4x^2 + 3} Step 2 of 2: Find f(3) + f(2).

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In the context of the AS/AD model, a current unemployment rate of 4% would be depicted as:

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Consider the following equilibrium: A2 (g) + B2 (g) = 2 AB (g) If the value of Kc for this reaction is 116.4, and the initial concentrations of each species are: [A2] = 0.200 M, [B2] = 0.200 M, [AB] = 0.630, what will be the equilibrium concentration of AB (in M)?

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Q5 Conditional Probability 4 Points You have two boxes of cookies. One has an assortment of 10 chocolate cookies and 8 vanilla cookies. The second box has 5 chocolate cookies and 10 vanilla cookies. The first box is a bit bigger so when you reach into the pantry the chance of grabbing it is 60% and the chance of grabbing the second box is 40%. If you grab a box and then a cookie at random, what is the probability that the cookie came from the first box if it is chocolate? Leave your answer as a decimal number between 0 and 1 with two decimal places. For example, if you answer is 0.647 you would write 0.65. If your answer is 0.025 you would write 0.03. You do not need to show your work.

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? A synchronous generator rated 500 kVA, 440 V with a sub-transient reactance of 0.25 p.u. is supplying a static load of 400 kW at 0.8 p.f. lagging at rated terminal voltage. A three phase fault occurs at the generator terminals. Determine: (i) e.m.f. behind transient reactance (ii) symmetrical short circuit current during sub-transient stage

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2. Suppose L : R3 - R3 is a linear transformation given defined by (10 19 10 L= 6 13 8 v, 5 13 9 and let %= (a) Show that 9 is a basis of R3 (b) Write the matrix associated to L in the basis . (c) Interpret the linear transformation L geometrically d Discuss how the standard basis and the basis % are useful to describe the linear transformation L.

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If the demand for mugs is q = 60 - 3p, what price will maximize revenue? (a) p = 20 (b) p = 30 (c) p = 10 (d) p = 40

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1. In 20 years, you’d like to have $500,000 to buy a vacation home. You currently have $50,000. At what rate must your $50K be compounded (assuming no additional contributions) for it to grow to $500,000 in 20 years?

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michael g.