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Question 10 (1 point) Listen In order for a survey to accurately generalize the entire population, the survey must a) sample at least 10,000 individuals from the target population. b) sample at least 25 percent of the target population. c) select respondents randomly, and everyone in the target population must have an equal chance of being selected. d) sample at least 10 percent of the target population.

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2. Given $ z \in \mathbb{C}, z \neq i $ such that $ \frac{1+i z}{z-i} $ is a real number, prove that $ |z|=1 $.

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Reduce the block diagram shown in Figure Q2 to unity feedback form and find the expression for the transfer function Y/X (10)

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What revenue classification would you use for Cash received from the issuance of long-term debt?

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Is it true? Write Y=yes or N=no into the box corresponding to the statement (-x V y V z) A-(x V yVz) is a 3CNF formula. (,y,z are atoms.) It is decidable whether two context-free grammars generate the same language. 57n =O(74n) Let M = (Q,,I,,qo,qa,q.) be a one tape nondeterministic Turing machine. If qou F Ci holds for some u E + and we have C; F Ci+i for all natural numbers i 1, then u L(M (Ci,C,... are configurations of M). If there is an injective mapping from A to B, then the cardinality of B is greater than the cardinality of A. If L'eR and L'<p L, then L ER. Let D be an instance of the Post Correspondence Problem. Then every solution of D consists of at mostDdominoes. We know, that for all languages L ENP there exist a deterministic Turing machine M satisfying L(M) = L. Constructing a deterministic Turing machine of polynomial time complexity for TSP implies that we can construct a deterministic Turing machine of poly. nomial time complexity for all languages of NP If a simple graph G of 8 vertices has a clique of size 3, then the complementary graph of G has a an independent set of size 5. P NP there exists an NP-intermediate language. Lpcp is in NP. Linear bounded automata are specific deterministic Turing machines The class of languages, that can be recognized by a linear bounded automaton contains the class of languages that can be recognized by a pushdown automa ton. All languages of NPSPACE are decidable by a deterministic Turing machine

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Michael has signed a binding contract for Tom to provide Michael with legal services. Michael paid $1,500 to Tom and owes an additional $6,000 on the contract. The services will commence late next year. When can Michael claim the deduction if he uses the accrual method?

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QUESTION 5 Which of the following antibiotics interferes with cell wall synthesis? A. tetracycline B. macrolides C. aminoglycosides D. echinocandins E. bacitracin

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An intelligence scale for children is approximately normally distributed, with mean 100 and standard deviation 15. Complete parts (a) through (f) below. Click here to view page 1 of the standard normal distribution table, Click here to view page 2 of the standard normal distribution table. (a) What is the probability that a randomly selected test taker will score above 125? 0.0475 (Round to four decimal places as needed.) (b) What is the probability that a randomly selected test taker will score below 90? 0.2514 (Round to four decimal places as needed) (c) What proportion of test takers will score between 110 and 140? 0.2476 (Round to four decimal places as needed.) (d) Would it be unusual for a randomly selected child to have a score above 150? because $P(X > 150) =$ (Round to four decimal places as needed.) (e) What intelligence score will place a child in the 98th percentile? (Round to the nearest whole number as needed) (f) If normal intelligence is defined as scoring in the middle 95% of all test takers, determine the scores that differentiate normal intelligence from abnormal intelligence. Normal children score between and points. (Round to the nearest whole number as needed. Use ascending order.)

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Q5-Q4-b A car has the following specification: a- Engine Its power performance function is $P_e = 562.1 \omega_e + 0.89507 \omega_e^2 - 1.4253 \times 10^{-3} \omega_e^3$ Where: $\omega_e$ is the engine angular velocity rad/s. Engine speed in rpm varies from 0 to 7000 rpm. $\omega_e = 2\pi N_e / 60$ rad/s $P_e$ is engine power in W. In all your calculation and plotting engine power should be in kW. $P_{e_{max}} = 255$ kW at 6100 rpm. b- Reduction in the differential 5.5:1 c- Rolling Resistance Coefficient = 0. 01x(1.1 + V/43) d- Drag Coefficient = 0.11 e-Tire size = P245/80 R17 f- Gradient = 1:15 g- Acceleration = 0.33 g (for rotation parts= 0.15 mass of the car) h- Frontal area of the car is 5.2 m² k- Mass of the car = 1385 kg. I-Fuel Consumption relation: $Q_s = \frac{g_e (P_r + P_a + P_o)}{10 \eta V_a \rho_f}$ $Q_s$ is fuel consumption l/100 km where $g_e$ is the optimal specific fuel consumption, g/kWh; $P_r$ is the power required to overcome the rolling resistance of the road, kW; $P_a$ is the power required to overcome the resistance of the air, kW: $P_o$ is the power required to overcome the resistance of the inertial acceleration, kW; $\eta$ is the efficiency of the transmission; $\rho_f$ is the fuel density, kg L$^{-1}$; $V_a$ is the average speed of the vehicle, km h$^{-1}$. $g_e = 125$ g/kWh $\rho_f$ is the fuel density, kg L$^{-1}$ = 0.741 $\eta = 0.93$ 1- Draw the performance Curves. The x axis should be vehicle velocity in km/h. 2- Calculate the maximum vehicle velocity km/h. Check the suitability of this engine to the given car. 3- Calculate the fuel consumption when the car is moving on a level road at a constant velocity of 90 km/h. Then compare with best fuel economy you have founded for a similar car. 4- Calculate the fuel consumption when the car is climbing a gradient (1:15) with the given acceleration.

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3. You are designing a flexible, polymeric vascular graft. You select some polymers, process them in different ways and then characterize them with DSC. Use the plots below to calculate the percent crystallinity in each of the three original materials, before heating, given that the enthalpy associated with melting of the pure crystalline polymer is 200 J/g.

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connor b.