Magna Concursos

Foram encontradas 385 questões.

1215381 Ano: 2018
Disciplina: Matemática
Banca: ANPEC
Orgão: ANPEC
Provas:
Considere a função !$ f: \mathbb {R}^4 \rightarrow \mathbb {R} !$, definida por !$ f(x_1,x_2,x_3,x_4) = -(x_1)^2 + \textstyle \sum_{k=1}^4(-x_k)^k !$, e verifique a veracidade da seguinte afirmação:
Item 0 - Seja !$ x^* = (x_1^*,x_2^*,x_3^*,x_4^*) !$ um ponto no !$ \mathbb {R}^4 !$. Para que !$ x^* ∈ \mathbb {R}^4 !$ seja um ponto crítico é necessário que !$ -2x_1^* - 1 = 2x_2^* = -3 (x_3^*)^2 = 4(x_4^*)^3 = 0 !$.
 

Provas

Questão presente nas seguintes provas
1215360 Ano: 2018
Disciplina: Inglês (Língua Inglesa)
Banca: ANPEC
Orgão: ANPEC
Provas:
Determine whether each statement is right or wrong.
Russia and NATO
Outgunned
The Atlantic alliance faces superior conventional forces near Russia’s borders
The Economist print edition | Europe
March 10th -16th 2018 |
BOASTING about nuclear weapons is something Vladimir Putin clearly enjoys. In his annual stateof- the-nation speech on March 1st, he listed five new weapons. Russia’s president gave pride of place to the development of a nuclear-powered cruise missile with, in effect, unlimited range, which was guaranteed to thwart America’s missile defences (see Science). He got the headlines he wanted, though there is nothing new about Russia being able to devastate America with nuclear weapons, nor anything likely to change on that front. What should concern Europe more than Mr Putin’s nuclear sabre-rattling are the formidable conventional forces that Russia is steadily building up, particularly in the Baltic region.
On most measures, NATO appears comfortably ahead of Russia. Between them, America and its European NATO allies spent $871bn on defence in 2015, compared with Russia’s $52bn. But as a recent report by the RAND Corporation, a think-tank, argues, the reality on the ground is rather different. It finds that Russia would now enjoy significant local superiority in any confrontation with NATO close to its own border. NATO’s latent strengths, once they were brought to bear, would be too much for Russia to cope with. But in the early stages of a conflict, for at least the first month and possibly for a good deal longer, the alliance would find itself outnumbered, outranged and outgunned.
Since Russia’s invasion of eastern Ukraine in 2014, NATO has bolstered its forces in the Baltic region with what it calls its “enhanced forward presence”. By last summer, the alliance had a total of 4,530 troops near the border with Russia in four battle-groups led by Germany (in Lithuania), Britain (in Estonia), Canada (in Latvia) and the United States (in Poland). But, in accord with the 1997 NATO-Russia Founding Act, an anachronistic agreement that reflected a more optimistic time, the soldiers are not permanently based, but constantly rotate.
NATO has also beefed up its “very high readiness joint task-force” of about 5,000 more troops who can be deployed within a week. But it admits that neither force is more than a tripwire to convince Russia that any attack on them would be seen as an attack on the alliance as a whole.
Over the past decade, Western forces and their Russian counterparts have diverged in terms of capability. NATO members adjusted for counter-insurgency operations in places such as Afghanistan by restructuring with light expeditionary forces. Russia concentrated on rebuilding forces with the mobility and firepower to wage high-intensity warfare against a peer adversary. As part of a comprehensive effort at military reform following a disjointed performance in the war against Georgia in 2008, Russia has professionalised its forces (largely relegating conscripts to a second echelon), equipped them with modern heavy weapons, and honed them with frequent large-scale exercises and combat experience in Ukraine and Syria.
What worries NATO commanders, such as General Sir Nicholas Carter, chief of Britain’s general staff, and his American opposite number, General Mark Milley, is the sheer amount of combat power Russia can concentrate at very short notice in the Baltic region. RAND found that in main battle tanks, Russia would outnumber NATO by 5.9 to 1; in infantry fighting vehicles by 4.6 to 1; in rocket artillery by 270 to none. And while NATO would enjoy a substantial advantage in combat aircraft, their effectiveness would be greatly reduced when faced with the world’s most powerful integrated theatre air defences.
Russia’s edge over NATO, says Ben Barry of the International Institute for Strategic Studies, is increased by its ability to use its internal lines to reinforce at speed. By contrast, NATO has neglected to preserve its cold-war military-transport infrastructure. Bridges cannot take the weight of tanks, and rail systems are not designed for trucks carrying heavy armour.
There is plenty that NATO could do to enhance conventional deterrence. It could permanently station forces in the Baltic region with more hitting power; it could hold regular large-scale short-notice exercises; it could invest in strengthening its internal lines; individual member countries could do more to meet their spending obligations and use the money to restructure their ground forces for high-intensity conflict.
Whether NATO is capable of such focus is debatable. Its southern members worry more about refugee flows; France is fighting an insurgency in the Sahel; Germany’s new coalition agreement relegated the (wretched) state of its armed forces to page 156 of a 177-page document. Mr Putin’s priorities are very different.
We infer from the text that
Item 3 - Russian forces had an outstanding performance against Georgia in 2008;
 

Provas

Questão presente nas seguintes provas
1215348 Ano: 2018
Disciplina: Economia
Banca: ANPEC
Orgão: ANPEC
Provas:
O desenvolvimento brasileiro foi marcado por desigualdades regionais que, por sua vez, suscitaram políticas públicas. Sobre este tema podemos afirmar:
Item 3 - Os governos militares da década de 1960 abandonaram as políticas de desenvolvimento regional para o Nordeste, que tinham na Sudene a sua instituição central.
 

Provas

Questão presente nas seguintes provas
1214131 Ano: 2018
Disciplina: Inglês (Língua Inglesa)
Banca: ANPEC
Orgão: ANPEC
Provas:
Determine whether each statement is right or wrong.
Russia and NATO
Outgunned
The Atlantic alliance faces superior conventional forces near Russia’s borders
The Economist print edition | Europe
March 10th -16th 2018 |
BOASTING about nuclear weapons is something Vladimir Putin clearly enjoys. In his annual stateof- the-nation speech on March 1st, he listed five new weapons. Russia’s president gave pride of place to the development of a nuclear-powered cruise missile with, in effect, unlimited range, which was guaranteed to thwart America’s missile defences (see Science). He got the headlines he wanted, though there is nothing new about Russia being able to devastate America with nuclear weapons, nor anything likely to change on that front. What should concern Europe more than Mr Putin’s nuclear sabre-rattling are the formidable conventional forces that Russia is steadily building up, particularly in the Baltic region.
On most measures, NATO appears comfortably ahead of Russia. Between them, America and its European NATO allies spent $871bn on defence in 2015, compared with Russia’s $52bn. But as a recent report by the RAND Corporation, a think-tank, argues, the reality on the ground is rather different. It finds that Russia would now enjoy significant local superiority in any confrontation with NATO close to its own border. NATO’s latent strengths, once they were brought to bear, would be too much for Russia to cope with. But in the early stages of a conflict, for at least the first month and possibly for a good deal longer, the alliance would find itself outnumbered, outranged and outgunned.
Since Russia’s invasion of eastern Ukraine in 2014, NATO has bolstered its forces in the Baltic region with what it calls its “enhanced forward presence”. By last summer, the alliance had a total of 4,530 troops near the border with Russia in four battle-groups led by Germany (in Lithuania), Britain (in Estonia), Canada (in Latvia) and the United States (in Poland). But, in accord with the 1997 NATO-Russia Founding Act, an anachronistic agreement that reflected a more optimistic time, the soldiers are not permanently based, but constantly rotate.
NATO has also beefed up its “very high readiness joint task-force” of about 5,000 more troops who can be deployed within a week. But it admits that neither force is more than a tripwire to convince Russia that any attack on them would be seen as an attack on the alliance as a whole.
Over the past decade, Western forces and their Russian counterparts have diverged in terms of capability. NATO members adjusted for counter-insurgency operations in places such as Afghanistan by restructuring with light expeditionary forces. Russia concentrated on rebuilding forces with the mobility and firepower to wage high-intensity warfare against a peer adversary. As part of a comprehensive effort at military reform following a disjointed performance in the war against Georgia in 2008, Russia has professionalised its forces (largely relegating conscripts to a second echelon), equipped them with modern heavy weapons, and honed them with frequent large-scale exercises and combat experience in Ukraine and Syria.
What worries NATO commanders, such as General Sir Nicholas Carter, chief of Britain’s general staff, and his American opposite number, General Mark Milley, is the sheer amount of combat power Russia can concentrate at very short notice in the Baltic region. RAND found that in main battle tanks, Russia would outnumber NATO by 5.9 to 1; in infantry fighting vehicles by 4.6 to 1; in rocket artillery by 270 to none. And while NATO would enjoy a substantial advantage in combat aircraft, their effectiveness would be greatly reduced when faced with the world’s most powerful integrated theatre air defences.
Russia’s edge over NATO, says Ben Barry of the International Institute for Strategic Studies, is increased by its ability to use its internal lines to reinforce at speed. By contrast, NATO has neglected to preserve its cold-war military-transport infrastructure. Bridges cannot take the weight of tanks, and rail systems are not designed for trucks carrying heavy armour.
There is plenty that NATO could do to enhance conventional deterrence. It could permanently station forces in the Baltic region with more hitting power; it could hold regular large-scale short-notice exercises; it could invest in strengthening its internal lines; individual member countries could do more to meet their spending obligations and use the money to restructure their ground forces for high-intensity conflict.
Whether NATO is capable of such focus is debatable. Its southern members worry more about refugee flows; France is fighting an insurgency in the Sahel; Germany’s new coalition agreement relegated the (wretched) state of its armed forces to page 156 of a 177-page document. Mr Putin’s priorities are very different.
We infer from the text that
Item 2 - Russian forces do not have the firepower to engage in high-intensity warfare;
 

Provas

Questão presente nas seguintes provas
1213930 Ano: 2018
Disciplina: Matemática Financeira
Banca: ANPEC
Orgão: ANPEC
Provas:
Considere que !$ log_{10}(1,1) ≈ 0,04 !$. A seguinte afirmação é certo ou errado?
Item 0 - Um indivíduo comprou uma casa no valor de R$ 100.000,00, em 100 parcelas mensais, pelo sistema SAC (Sistema de Amortização Constante). Desconsiderando a inflação, o saldo devedor depois do 60º pagamento será de R$ 43.333,34.
 

Provas

Questão presente nas seguintes provas
1213905 Ano: 2018
Disciplina: Estatística
Banca: ANPEC
Orgão: ANPEC
Provas:
Julgue como certo ou errado a afirmativa que segue:
Item 1 - Na presença de erros autocorrelacionados, os estimadores dos parâmetros de um modelo de regressão linear serão viesados.
 

Provas

Questão presente nas seguintes provas
1213897 Ano: 2018
Disciplina: Economia
Banca: ANPEC
Orgão: ANPEC
Provas:
Sobre a economia brasileira na década de 1980, pode-se afirmar:
Item 2 - A primeira metade da década foi marcada por inflação crescente e déficit em conta corrente do balanço de pagamentos, o qual foi possível financiar devido à existência de forte liquidez internacional, o que não se verificou na segunda metade da década.
 

Provas

Questão presente nas seguintes provas
1213895 Ano: 2018
Disciplina: Matemática
Banca: ANPEC
Orgão: ANPEC
Provas:
Considere o operador linear definido por !$ T(x, y) = (x + y, x - y) !$. Seja !$ D !$ a região do plano limitada pelas retas: !$ x + y = 1; x = 0; y = 0 !$. Julgue a seguinte afirmativa:
Item 1 - A reta !$ x + y = 1 !$ é transformada por !$ T !$ em uma reta horizontal.
 

Provas

Questão presente nas seguintes provas
1213876 Ano: 2018
Disciplina: Economia
Banca: ANPEC
Orgão: ANPEC
Provas:
Com relação aos fundamentos da Microeconomia, julgue como verdadeiros ou falsos os itens a seguir:
Item 3 - Num mercado competitivo, com custos marginais constantes e capacidade máxima limitada, se a demanda agregada é grande o suficiente para fazer a firma atingir sua capacidade máxima, então o preço de equilíbrio é o custo marginal da última unidade acrescido do preço-sombra da capacidade máxima.
 

Provas

Questão presente nas seguintes provas
1213864 Ano: 2018
Disciplina: Estatística
Banca: ANPEC
Orgão: ANPEC
Provas:
Seja X uma variável aleatória com distribuição uniforme no intervalo [a,b], em que b > a, e função densidade de probabilidade dada por:
!$ f(x) = \begin{Bmatrix} { \large 1 \over b-a} para \ a ≤ x ≤ b \\ 0 \ para \ qualquer \ outro \ valor \end{Bmatrix} !$.
Então, considerando que c e d são constantes, podemos afirmar:
Item 0 - A função distribuição acumulada de X é dada por: !$ F(x) = { \large x-a \over b-a} !$ para !$ a ≤ x < b !$ e !$ F (x) = 1 !$ para !$ x ≥ b !$.
 

Provas

Questão presente nas seguintes provas