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xavier martinez

xavier m.

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Which of the following statements describes advantages of credit? Using credit increases total purchasing power Using credit is safer than using cash Using credit has a tax advantage

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Question 7 1 pts Which of the following have the highest concentrations of Toll- like receptors? O Monocytes Natural killer cells O B-cells O T cells

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elastic potential energy. [2] as angle of \( 10^{\circ} \) with the horizontal. It ascends at a steady speed of \( 80 \mathrm{~km} / \mathrm{h} \) with a driving force CS CamScanner of 1000 N provided by the engine. Calculate the power needed for car to get to the top if the coefficient of kinetic friction between the tyres and surface of the hill is 0.3 . [8]

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x+4=\frac{1}{16}(y+2)^2 Axis of Symmetry Opens: Up Down Left Right Focus Directrix

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Find the differential of $y = \cos(3\pi x)$.\newline$dy = $ $dx$

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A government is planning a hydroelectric project for a river basin. Besides the production of electric power, this project will provide flood control, irrigation, and recreation benefits. The estimated benefits and costs expected from the three alternatives under consideration are listed in the following table: Initial Cost Annual equivalent Benefit & Cost A B C (Rs) (Rs) (Rs) 25,00,00,000 35,00,00,000 50,00,00,000 a). Operating & maintenance cost 30,00,000 35,00,000 45,00,000 b). Power sales/year 2,00,00,000 2,20,00,000 2,80,00,000 c). Flood control savings 35,00,000 45,00,000 60,00,000 d). Irrigation benefits 45,00,000 55,00,000 70,00,000 e). Recreation benefits 20,00,000 30,00,000 45,00,000 If the interest rate is 10% and the life of the projects is estimated to be 40 years, by comparing the BC ratios, determine which project should be selected.

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b) Given the following block diagram derive the differential equation relating the output c(t) to the input r(t) c) prove that the roots for this system are -1-j and -1+j \frac{Y(s)}{R(s)} = \frac{\omega_n^2}{s^2 + 2\zeta\omega_n s + \omega_n^2} when $t_s$ (settling time for the 5 percent criterion) is 3 and the percent overshoot $M_p$ is 4.3%

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4 Corner Model: Maximizing Revenue The Bouncy Ball Company has an agreement with a retailer as follows: The first thousand Bouncy Balls are sold at 50 each. For each additional thousand ordered, the selling cost is reduced by 2e per ball. Find the maximum possible revenue, the number of Bouncy Balls which need to be sold in order to maximize revenue, and the price per ball that should be charged in order to earn the maximum revenue. Revenue Solution Number of Bouncy Balls Price/Bull Revenue Maximum Revenue: 358,000 Number of Bouncy Balls that need to be sold: 13,000 Selling price per ball: 26 X= 2e price decrease P(x)= 50-2x 9(x)=1000+1000x R= Pxq R(x) (50-2x) (1000+1000x) R(x)=(50-2x) (1,000+1000x) = 50,000+50,000x-2,000x-2000x$^2$ = -2,000x$^2$+48,000x+50,000 4,000 x +48,000 4,000 x = 48,000 4,000 4,000 x= 12 P= 50-2(12)=26 R (50-2(12)) (1000+1000(12)) = 26 (13,000) = 338,000 Price Per ball: 338,000 Engaging Algebra 4-Corner Model 47 13,000 26 Quadratic Functions

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Suppose Uber and Lyft provide an identical ride-sharing and that each company can only set a single price for its rides, and the two firms set their respective prices simultaneously. Consumers view the two services as perfect substitutes, so will choose whichever service is cheaper. If both firms offer identical prices, each receives half the customers. The profit each firm would earn at various prices is shown in the payoff matrix below. What is the equilibrium outcome of the game Uber and Lyft are playing? $225, $225 $750, $0 $375, $375 $250, $250 Uber $20 $15 $10 $20 $225, $225 $0, $750 $0, $500 $15 $750, $0 $375, $375 $0, $500 Lyft $10 $500, $0 $500, $0 $250, $250

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develop a new function to calculate an estimate of pi for a specified number of significant digits. Your function should output both the estimate, and the number of summation terms used to calculate the estimate. Solution MATLAB Documentation 1 function [estimate, N_terms] = HW4_PiEstimate(numsig) 2% Input 3% numsig: 4 % Output 5 6 7 Required number of significant digits (positive integer, scalar) result of sum series expansion number of sum terms used in the calculation. 8 k = 0; 9 sum = 0; 10 while abs(sum - pi) > numsig 11 sum = sum + ((-1)^(k))*(1/(2*k+1)); 12 k = k + 1; 13 end 14 estimate = 4*sum; 15 N_terms= k - 1; 16

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