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Multiple Choice Which of the following is a process-costing method that combines costs and units produced in a period with the costs and units in beginning work-in-process inventory? First in, first out method Step-down method Common-rate method Weighted-average method

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Q3 [4 marks] Consider the below output obtained after running a linear regression. The dependent variable is monthly expenditure towards fast food, in AED. Data was obtained from a convenience sample of the UAE population. In the output below, all variables are coded as 0/1. For instance, 1 if male, 0 otherwise. \begin{tabular}{l|r|r} & Coefficients & P-value \\ \hline Intercept & 470 & 0.00 \\ Gender: Male & 120 & 0.01 \\ Age: 18-25 & 20 & 0.04 \\ Age: 26-30 & 51 & 0.01 \\ Age: 30+ & 15 & 0.09 \\ Nationality: Emirati & 132 & 0.16 \\ Emirate of residence: Dubai & 59 & 0.06 \\ \end{tabular} Interpret the output above and discuss potential policy implications [2 marks].

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Mass Spectrum (not shown): [M] = 208 (100%) m/z IR Spectrum (not shown): 3098, 2981, 1331 cm?¹ (all listed are strong (s) unless otherwise indicated) ¹H NMR Spectrum (400 MHz, CDCl?, 25 °C) dd (J = 8, 2 Hz) t (J=8 Hz) t (J = 2 Hz) m m m m 8 7 6 5 1H 2H 1H 4 PPM 4H 3 2 1 0 4H 2H 6H ¹³C NMR Spectrum, proton-decoupled (125 MHz, CDCl?, 25 °C) (C) (CH) (CH?)(CH?)(CH?) (CH) (CH) (CH?)(CH?) (CH?) (CH?) 160 140 120 100 80 60 40 20 0 PPM

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1. In which transport application are CNTs most widely employed by their introduction into polymer composites? a. Automotive b. Marine c. Aerospace d. Railway

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1. Water flows through the branching pipe shown in Fig. Determine the pressure at section 3 at kPa Q1=1.2 m$^3$/s A1=0.08 m$^2$ P1=320 kPa Z1=0 (3) A3 = 0.035 m$^2$ z3 = 10 m V$_2$ = 14 m/s A$_2$ = 0.03 m$^2$ z$_2$ = 0 (2) (1) a. 78 b. 112 c. 86 d. 98

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Fill in the blanks with correct values for registers PC and AC, and the contents in memory locations X, and Y, after each instruction is executed starting from the first instruction. Hex Address Label Instruction 100 If, LOAD X 101 SUBT Y 102 SKIPCOND 400 103 JUMP Else 104 Then, LOAD X 105 ADD X 106 STORE X 107 JUMP Endif 108 Else, LOAD X 109 SUBT X 10A STORE Y 10B Endif, Halt 10C X, Dec 12 10D Y, Dec 20

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What is the relationship between happiness (as reported on household surveys) and income a. Within a country in a specific year? b. On average in a country like the US or Japan over 40 or 50 years? c. On average across countries, from the poorest to the richest, in a specific year? d. If your answers are different, explain why the relationship may differ. Draw diagrams to illustrate your answers. Label both axes in all diagrams. [12 points]

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3) Find the Z-transform of the following discrete-time signals (Note: there is no need to indicate the region of convergence (ROC)) a) x[n] = u[n] b) y[n] = u[n-20] c) w[n] = Î³n u[n] d) h[n] = Î³n u[n-3] (TIP: try to multiply by Î³ raised to some power) e) d[n] = 5 * 0.3^n cos(0.1Ï€n) u[n] + 3 * 0.5^n sin(0.2Ï€n) u[n] f) e[n] = cos(0.3Ï€n â€“ 0.6Ï€) u[n-2] (TIP: try to write this as a time-shifted cosine) g) f[n] = (n+1) Î³n u[n] h) h[n] = 1 for 0<=n<=19; and h[n] = 0 otherwise (TIP: use your answers to a) and b)) i) x[n] = { 3, 2, 0, -1, -2, -1, 0, 1 } for 0 <= n <= 7

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Suppose at the profit-maximizing level of quantity, P = 4MC, where MC is the marginal cost. What is the price elasticity of demand at the profit-maximizing level of quantity? Show your work.

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Third term Letter of Answer 1. x² + 2x + 2. x² + 20x + 3. x²-16r + 4. x²-30x + 5. x² + 6x + 6. x² + 8x + 7. x²-10x+ 8. x²-21w + 9. x²+x+ 10. x²-4x + Choices: E = 100 A = 1 V = 225 S = 64 I = 16 T=9 G = \frac{441}{4} R = 25 O = 4 L = \frac{1}{4}

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natalie s.