Magna Concursos

Foram encontradas 384 questões.

254748 Ano: 2000
Disciplina: Matemática
Banca: ANPEC
Orgão: ANPEC
Provas:

Dada a equação de diferenças finitas do segundo grau !$ 2y_{t+2} + 2y_{t+1} + y_t = 10 !$ com valores !$ y_0 = 3 !$ e !$ y_1 = 4 !$, assinale V (verdadeiro) ou F (falso):

Item 0: A solução particular da equação é uma função decrescente;

 

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Questão presente nas seguintes provas
252783 Ano: 2000
Disciplina: Matemática
Banca: ANPEC
Orgão: ANPEC
Provas:

Dada a função !$ f : R^2 \rightarrow R !$ definida por !$ f (x, y) = x y !$, assinale V (verdadeiro) ou F (falso):

Item 4: O valor máximo de !$ f !$ sujeito às restrições !$ x \ge 0 !$, !$ y \ge 0 !$, !$ -2 \le y + 2x \le 2 !$ e !$ -2 \le 2 y + x \le 2 !$ é inferior a 1(um).

 

Provas

Questão presente nas seguintes provas
252782 Ano: 2000
Disciplina: Inglês (Língua Inglesa)
Banca: ANPEC
Orgão: ANPEC
Provas:
THIRD TEXT
There is the bottom-line, spreadsheet way of doing business in quiet boardrooms. And there’s the Latin Way. Knowing the difference between the two is a big factor behind what has been dubbed the reconquista of Latin America by Spain. And this time the weapon of choice of the conquistadores is the peseta rather than the sword. In what has become the world’s hottest spot for foreign investors, Spaniards have a head start over competitors, says Sergio Aranda Moreno, CEO of Spanish-owned Gas Natural México. Explaining the Latin way of wheeling and dealing, he says, “Sometimes I come out of a meeting and a colleage says, ‘Phew, what a bloodbath!’ Yet on the the surface, everything was warm and polite. Someone from another culture would never have noticed the battle going on behind the scenes.”
But anyone who is numerate can see the fallout from those deals. Big spending by foreign companies in Latin America and the Caribbean has catapulted outside investment into the region by an estimated 33% last year, to $97 billion, surpassing that in Asia by $13 billion. And the foreigners doing the most moving and shaking come from one of the region’s old colonial powers. In telecommunications, banking, energy supply – even marketing fish and collecting trash – Spaniards are “invading” Latin America with more force and flair than anyone else. Juan Villalonga, president of Spain’s communications giant Telefónica, says Spaniards doing business in Latin America these days feel “como Pedro por su casa,” or like Pedro at home – which is about as comfortable as a Spaniard gets.
The Spanish-led push has helped Europe turn the investment tables on Latin America’s longtime financial Big Brother, the U.S. Of the 25 largest foreign companies in Latin America in 1998, on the basis of consolidated sales, 14 were European and 11 were from the U.S., with Spain’s Telefónica now the region’s biggest communications operator.
In other markets dear to the U.S. heart, Spanish firms have muscled themselves into preferred positions. Sergio Aranda says that when the Mexican government opened its natural-gas market five years ago, U.S.-based companies were expected to dominate, given their proximity. But it didn’t turn out that way. Gas Natural México, set up by an affiliate of Spain’s petroleum giant Repsol, today has about 10 times as many customers as its U.S. rivals. And in March, Aranda made another coup. Gas Natural bought from Texas utilities the right to supply gas in Mexico City, converting the Spanish company into by far the dominant force in Mexico’s gas market.
Aranda says language alone doesn’t explain the Spaniard’s surge. The affinities that give Spanish firms an edge run deeper. “American businessmen have a 9-to-5 culture,” he says. “Here, where personal contact is so important, it’s a constant round of lunches and dinners. That’s the way we do business in Spain too. The Americans are also much more direct. Like the Mexicans, we skirt around the issues, often making our point indirectly.”
Like Spaniards in Brazil, Argentina, Chile and many other Latin American countries, Aranda doesn’t sense any resentment in the region of the 21st century conquistadores. Questions do arise in some countries about concentration of ownership. But Aranda says, “I feel more than welcome here.” (“New World Conquests,” Time magazine, May 8, 2000: 22-27).
According to the text, Mr Aranda:
Item 2: feels he is welcome in Latin America.
 

Provas

Questão presente nas seguintes provas
252771 Ano: 2000
Disciplina: Matemática
Banca: ANPEC
Orgão: ANPEC
Provas:

A respeito da função !$ f : R^2 \rightarrow R !$, definida por !$ f(x,y) = (x + y) e^{-(x+y)} !$, assinale V (verdadeiro) ou F (falso):

Item 4: !$ lim_{x \rightarrow + \infty} f (x,y) = 0 !$ para todo y fixado.

 

Provas

Questão presente nas seguintes provas
252758 Ano: 2000
Disciplina: Inglês (Língua Inglesa)
Banca: ANPEC
Orgão: ANPEC
Provas:
SECOND TEXT
All things considered, it must have been a crummy week to be the king of the software world. If you are Bill Gates, you’re used to being cursed by competitors, hounded by regulators and lampooned by late-night comics as the perfect – albeit perfect rich – geek. But no one, not even Gates, could be comfortable with the idea that one’s masterpiece – which happens to the biggest and most powerful software company on earth – could be taken and sliced in two.
But that’s precisely what state and federal trustbusters demanded last week. In a filing submitted to federal Judge Thomas Penfield Jackson, the Justice Department and 17 of 19 states that have brought suits against Microsoft finally agreed: Microsoft should be chopped into two companies. One would develop and sell the Windows operating system that runs 85% of the world’s desktop computers. The other business would handle everything else – most notably, the universally used “applications” software, such as Microsoft Office, which includes its dominant word processing and spreadsheet programs, and its Web-browsing Internet Explorer.
The two companies could not collude or cooperate in any way for 10 years. During that time, they would be required to strive ceaselessly against each other. Gates would have to choose which company to run and hold stock in – while competing with the other.
To antitrust chief Joel Klein, the plan strikes a perfect balance: “Neither the heavy hand of ongoing government regulation nor the self-interest of an entrenched monopolist will decide what is in the best interest of consumers,” he says. “Rather, consumers will be able to choose for themselves the products they want in a free and competitive marketplace.” Counters Gates: “We don’t believe the courts are going to uphold this kind of unprecedented and radical regulation of our activities.”
But beyond the angry words and legal documents, the proposed remedy marked the culmination of 23 months of state and federal pursuit of Microsoft and represents a clear watershed for the computer and software industries. The ruling that emerges from Judge Jackson’s court, and from an appeals process that could last two more years, will do much to determine the course of software development for decades to come – and with it the programs that countless companies and consumers use.
For now, Microsoft attorney William Neukom plans to push for an extension of the company’s May 10 deadline for responding to last Friday’s Justice Department proposal. Microsoft will want “months and months” of additional hearings in front of Jackson, who ruled on April 3 that the company had illegally and repeatedly used its monopoly power to stifle innovation. A final decision by Jackson might not come until the end of summer. Even then, any breakup that the judge might call for would be on hold until the appeals process is done. That’s why Klein and the states want Jackson’s ruling to include immediate restrictions on Microsoft’s conduct, including a measure that would bar it from retaliating against computer makers that load rivals’ software on their machines. In addition, prosecutors want Microsoft to publish a price list that would apply to all its largest customers. (“Carving up Gates,” Time magazine, May 8, 2000: 28-31).
According to the text, Bill Gates:
Item 1: is used to being lampooned.
 

Provas

Questão presente nas seguintes provas
252734 Ano: 2000
Disciplina: Inglês (Língua Inglesa)
Banca: ANPEC
Orgão: ANPEC
Provas:
FIRST TEXT
Sympathetic writers talk of Marx’s passionate empathy toward the working class, his demands for a decent wage and improved working conditions, and his great feeling for his family’s welfare. In this respect, Marx is an enigma. In the classroom’s most popular book on the history of economics, Robert L. Heilbroner writes that, despite his reputation as a contentious and vengeful man who feuded constantly with his contemporaries, Marx was a devoted husband and father. In a sympathetic biography, Saul K. Padover notes, “Marx, the harsh critic and angry radical in his public life and writings, was a different man in private. In his personal life, he was extraordinarily kind and generous and, when not tormented by illnesses, gay. . . . [As a] self-assured male, Marx has a genuine affection and esteem for women. . . . [And] Jenny was the only woman in his life.”
Apologists for Marx are almost always blind to the darker side of the creator of communism. They write of his devotion to his family and his love letters to his wife but ignore or condone his illicit affair with the family’s household servant, Lenchen, which produced an illegitimate son whom Marx would have nothing to do with. Interestingly, Marx also never paid this servant a penny for her housework.
Karl and Jenny Marx were poverty-stricken but not for want of money. They received large sums over the years from Engels, other supporters, and from Marx’s writings. One estimate is that Marx was poor only 15 years of his 65-year career, and that his income placed him in the top 5 percent of London residents in the 1860s. But the Marxes were financially incompetent and could not control their spending habits. Marx entertained lavishly, speculated on the stock market, and spent large sums on liquor, books, travel, and other consumer goods until he had to beg for more or borrow from pawnshops at usury rates. Such irresponsible spending habits often left his family starving, destitute, and in ill health. Marx’s family life was often a nightmare, resulting in the early death or eventual suicide of most of his children. Historian Robert Payne, in his biography of Marx, concludes, “He exploited everyone around him – his wife, his children, his mistress and his friends – with a ruthlessness which was all the more terrible because it was deliberate and calculating.” (“Was Marx a Good Family Man?” Skousen, Marx, Economics on Trial: Lies, Myths, and Realities. Business One Irwin, Homewood, Ill, 1991: 212-213).
According to the text:
Item 0: The Marxes were poverty-stricken because they did not like money.
 

Provas

Questão presente nas seguintes provas
252718 Ano: 2000
Disciplina: Economia
Banca: ANPEC
Orgão: ANPEC
Provas:
Um pequeno produtor utiliza implementos agrícolas e trabalho para produzir mudas de plantas ornamentais. Este produtor deseja maximizar seu lucro, que depende do esforço E de um trabalhador assim como de condições climáticas aleatórias. O esforço máximo do trabalhador é dado por E = 1 e o esforço nulo por E = 0. Há um custo para o trabalhador esforçar-se, dado por C ( E ) = 0, se E = 0 e C( E ) = 5.000, se E =1. A probabilidade do clima ser favorável é de p = 0,5 e a matriz de lucros possíveis é dada por:
Clima Favorável (p=0,5) R$ Clima desfavorável (p=0,5) R$
E=0 10.000,00 5.000,00
E=1 20.000,00 10.000,00
Analise a assertiva abaixo, supondo que o objetivo do trabalhador seja maximizar sua remuneração esperada líquida, e que o objetivo do produtor seja maximizar o lucro.
Item 0: Se o esforço E não pode ser monitorado, a situação descreve um problema típico de agenteprincipal, baseado em informação assimétrica.
 

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Questão presente nas seguintes provas
252702 Ano: 2000
Disciplina: Estatística
Banca: ANPEC
Orgão: ANPEC
Provas:
Seja o processo auto-regressivo: !$ y_t=Φ _1 y_{t-1} + ε _t !$. Pode-se afirmar que:
Item 2: O estimador de mínimos quadrados ordinários do parâmetro !$ Φ_1 !$ é não tendencioso.
 

Provas

Questão presente nas seguintes provas
252699 Ano: 2000
Disciplina: Economia
Banca: ANPEC
Orgão: ANPEC
Provas:
A política de valorização do café definida pelo Convênio de Taubaté em 1906:
Item 4: eliminou do mercado brasileiro os produtores ineficientes.
 

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Questão presente nas seguintes provas
252680 Ano: 2000
Disciplina: Economia
Banca: ANPEC
Orgão: ANPEC
Provas:
As idéias da CEPAL exerceram influência importante sobre a política econômica brasileira, sobretudo nos anos 50. Podemos associar ao ideário Cepalino:
Item 3: a teoria inercialista da inflação;
 

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Questão presente nas seguintes provas