Numerade

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Do you think that the estimated hidden costs of gasoline (environmental damage, government subsidies, etc.) should be included in its price at the pump? Explain. Would you favor much higher gasoline taxes to accomplish this if payroll taxes and income taxes were reduced to balance gasoline tax increases, with no net additional cost to consumers? Explain.

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The addition of urea can greatly weaken hydrogen bonding in proteins. This may result in: A. stabilization of protein tertiary structure. B. disruption of α-helices and β-sheets. C. a decrease in the pH of the solution. D. increased strength of the hydrophobic effect. E. no change to protein tertiary structure

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What is the molarity of acetic acid in vinegar solution if 22.50 ml of a 0.3350 M sodium hydroxide NaOH solution is needed to neutralize 18.46 mL of vinegar to a phenolphtalein endpoint, according to the following balanced equation HC2H3O2(aq) + NaOH(aq) NaC2H3O2(aq)+H2O

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1. Given that Elvis runs with speed r and swims with speed s, and that the ball is thrown into the water x meters from shore (see diagram), what value of y will get him to the ball in the least time?

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Suppose a drought increased the price of corn by 25 percent while it decreased the quantity by 50 percent. The price elasticity of demand equals A) +2.00. C) +0.20 B) -2.00 D) -0.20 The price elasticity of gasoline supply in the U.S. is 0.4. If the price of gasoline rises by 8%, what is the expected change in the quantity of gasoline supplied in the U.S.? A) +3.2% C) +32.0% B) -3.2% D) +0.32% Joey derives utility from only two goods, cake ($Q_c$) and donuts ($Q_d$). Joey has an income of $240 and the price of cake ($P_c$) and donuts ($P_d$) are both $3. What is Joey's budget constraint? A) 240 = 3$P_c$ + 3$P_d$ C) 240 = ($P_c$)($Q_c$) E) none of these B) 240 = 3$Q_c$ + 3$Q_d$ D) 240 = ($Q_c$)($Q_d$) Indifference curves are convex to the origin because of: A) transitivity of consumer preferences. B) the assumption of a diminishing marginal rate of substitution. C) the assumption that more is preferred to less. D) the assumption of completeness. E) none of the above Suppose the price of rice decreases and you view rice as an inferior good. The income effect leads to a change in rice consumption, and the substitution effect results in a ______ change in rice consumption A) positive; positive C) negative; positive B) positive; negative D) negative; negative A Giffen good A) is always the same as an inferior good. B) is the special subset of inferior goods in which the substitution effect dominates the income effect. C) is the special subset of inferior goods in which the income effect dominates the substitution effect. D) must have a downward sloping demand curve. After a good falls in price, consumers are better off because they can buy the same amount of the good for less money, and thus have money left over for additional purchases. This fact is called: A) the income effect. B) the substitution effect. C) the wealth effect. D) the price effect. The ______ elastic a firm's demand curve, the greater its ______. A) less; monopoly power B) less; output C) more; monopoly power D) more; costs

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2. Let ? = {a,b}, La = {ak | k? N}, Lb = {bj | j? N}, and L2 = {x ? {a,b}* | |x| is even}. Do not draw the machines below. Specify them with the quintuple (Q, ? = {a,b}, ?, Qo, F), where transition function ? is a table with symbols on the rows and states on the columns. (a) Construct DFA Ma such that L(Ma) = La. Be sure to include all states, including dead states. Devise a state invariant for Ma and use it to prove that Ma accepts La. (b) Construct DFA Mb such that L(Mb) = Lb. Be sure to include all states, including dead states. Devise a state invariant for Mb and use it to prove that Mb accepts Lb. (c) Construct DFA M2 such that L(M2) = L2. Be sure to include all states, including dead states. Devise a state invariant for M2 and use it to prove that M2 accepts L2. (d) Construct DFA Ma|b such that L(Ma|b) = La ? Lb. Use the product construction from week 9 slides. Explain how you can use the proofs for Ma and Mb to establish that Ma|b accepts La ? Lb. (e) Construct DFA Ma|b even such that L(Ma|b even) = (La ? Lb) ? L2. Explain how you can use the proofs for the preceding machine to establish that Ma|b even accepts (La ? Lb) ? L2.

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9. Media companies play an "agenda setting" role by determining what information to present and how to present it. True False 10. The public sphere is the domain in which individuals make their own decisions about their personal lives. True False 11. Most protests now follow a "networked" model, in which movements are informally organized, and most participants are mobilized through social media. True False 12. How do digital communications technologies complicate traditional notions of the "public sphere? 13. What is Section 230 of the Communications Decency Act, and why is it important to Sarah Roberts's argument in "Your AI Is a Human?" 14. Briefly summarize one of the "additional materials" (e.g., a poem, song, video) from the Dying for an iPhone companion website. Who is the audience for this material, and what is it trying to communicate?

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Kim is a seller of Strength Bracelets, a bracelet that claims to provide strength and stability with the use of the body's natural energy field, at the local mall. Strength Bracelets became so popular that Kim decided to sell 1 bracelet for $55.00. If the consumer is willing to purchase 3 bracelets, it would only cost the consumer $39.99/bracelet. It only took 4 hours for Kim's stock of 240 Strength Bracelets to sell out. 1. Kim is using First-degree price discrimination against her consumers. 2. Kim is using Third-degree price discrimination against her consumers. 3. With this pricing scheme, Kim is extracting part of the consumer's surplus. Which of the above statements are true? A) Only 1 is true. B) Only 2 is true. C) Only 3 is true. D) Both 1 and 2 are true. E) Both 2 and 3 are true. QUESTION 2 Anna runs her own day hiking adventures. The latest exploration of a newly reconditioned mountain trail will be embarked upon next week. Based on the previous year's ticket sales, it is guaranteed to be a sell-out expedition. Anna decides to do two trips to accommodate the extra demand in the first week. However, she will have to pay a higher than usual rate for casual guides to work overtime in the first week, so she decides to charge twice the normal ticket price. Which of the following statements are true?

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Suppose that of the population of the U.S. is left-handed. If a random sample of people from the U.S. is chosen, approximate the probability that more than are left-handed. Use the normal approximation to the binomial with a correction for continuity. Round your answer to at least three decimal places. Do not round any intermediate steps.

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1. _____ is one of the few theories of psychotherapy seen as a worldview. a. Scientist -practitioner b. Client centered c. CBT d. Psychoanalytic 2. A clinical blind spot' occurs when a therapist only knows a few theoretical approaches? True False

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rebecca b.