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teresa aramburu

teresa a.

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1. The unity feedback system shown below is operating with a dominant pole damping ratio of 0.707. Design a PD controller so that the settling time is reduced by a factor of 2. Compare the transient and steady-state performance of the uncompensated and compensated systems. Describe any problems with your design. $$R(s)$$ $$E(s)$$ $$\frac{K(s+6)}{(s+2)(s+3)(s+5)}$$ $$C(s)$$

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One of the factors of the polynomial p(x) = 2x3 + kx2 + x +12 is 2x − 3. Determine the value of k.

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Enter a balanced chemical equation for the reaction that occurs when lead metal reacts with O2(g)O2(g).

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Assume an individual has income of $100,000 and a 30% chance of incurring a $75,000 accident. The Utility Function is represented by: U = C^(0.2) Compute expected utility if the individual purchased actuarial fair and full insurance

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Use the data collected in Part I: Standard Solutions Absorbance Data to calculate the concentration of Fe(SCN)^(+2) in the standard and equilibrium solutions. Recall that the solutions for each run were prepared according to the following table: Concentration and Absorbance of Fe(SCN)^(2+) in Standard Solutions Use the data collected in Part I: Standard Solutions Absorbance Data to calculate the concentration of Fe(SCN)^(+2) in the standard and equilibrium solutions. Recall that the solutions for each run were prepared according to the following table: Beaker 1A 0.030 M FeNOmL 5.0 5.0 5.0 5.0 5.0 3.00x10-4M KSCN(mL) 1.00 2.00 3.00 4.00 0.010 M HNO3(mL) 9.0 8.0 7.0 1B 1C 1D 6.0 1E 5.00 5.0 Concentration and Absorbance of Fe(SCN)^(2+) in Standard Solutions Table viewList view [Fe(SCN)^(2+)](M) Absorbance 1A 0.128 1B 0.236 1C 0.304 1D 0.394 1E 0.472

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Angie Silva has recently opened The Sandal Shop in Manila, a store that specializes in fashionable sandals. In time, she hopes to open a chain of sandal shops. As a first step, she has gathered the following data for her new store: Sales price per pair of sandals Variable expenses per pair of sandals Contribution margin per pair of sandals P400 160 P240 Fixed expenses per year: Building rental P150,000 Equipment depreciation 8,000 Selling 50,000 Administrative 40,000 Total fixed expenses P248,000 Required: 1. Suppose the store can sell 1,500 pairs of fashionable sandals this year, create a contribution margin income statement using the data provided. 2. What is the break-even point in number of units and sales amount? Compare the results of the break-even computation and the answer for No. 1 requirement. After computing relevant information, discuss your analysis and observation. 3. Angie is planning to consider a target profit of P90,000 net of 20% income tax. What is the break-even point in number of units and sales amount to achieve the target profit? Provide proof by preparing a contribution margin format income statement with P90,000 as the net operating income after tax. 4. With the contribution margin format income statement from the information in No. 1, compute the margin of safety in percentage and the degree of operating leverage. 5. Assuming Angie is optimistic that the store can sell up to 2,000 pairs of fashionable sandals during the year. The difference of 500 pairs of fashionable sandals from the original estimated sale of 1,500 fashionable sandals is equivalent to an increase of 33.33%. Using the degree of operating leverage computed in No. 4 requirement, how much is the expected percentage increase in net operating income?

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Question 16: When a person who is normally good-natured yells at us, we pay attention because of the quality of Answers: A. repetition B. contrast or change C. motives D. intensity

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12. Use Lagrange Multipliers to find the maximum and minimum of $f(x, y) = x^2y$ subject to the constraint $x^2 + y^2 = 1$

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Good luck. Question 40 12 pts A researcher would like to examine how the chemical tryptophan, contained in foods such as turkey, can affect mental alertness. A sample of n = 25 college students is obtained and each student's performance on a familiar video game is measured before and after eating a traditional Thanksgiving dinner including roast turkey. The average score dropped by M = 16 points after the meal with SS= 5400 for the difference scores. Provide your answers in the spaces provided and provide exactly what you are asked for; do NOT show your work in the blanks. (12 points) a. Is there is significant difference in performance before eating versus after eating? Use a two-tailed test with $\alpha$ = .05. The estimated standard error for these data is and the corresponding t value is (report the t value with two decimals; Otherwise you will lose all marks on this). b. Compute 95%CI for the average dropped score to measure the effect size. For average dropped score, 95%CI minimum is and 95%CI maximum is (Report both with three decimals; Otherwise you will lose all marks on this). c. When writing the conclusion sentence in the research report, which one is correct for how the p value should be reported? Write 1 for $p$ < .05 or 2 for $p$ > .05 (Do not write anything else).

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Find the area of the figure. A=\\ (Simplify your answer.) 15 m 13 m 13 m 20 m 15 m 24 m

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