O conjunto solução do sistema de equações lineares:

!$ \begin{cases} x - 2y - 3z = 5 \\ -3x + 6y + 9z = -15 \\ 5x - 10y - 15z = 17 \end{cases} !$

SUICIDE BOMBER KILLS 7 NEAR MUSHARRAF ARMY HOME – REUTERS

RAWALPINDI (Reuters) - A suicide attack killed at least seven people, the bomber, on Tuesday less than a kilometer from Pakistan President Pervez Musharraf's army residence in Rawalpindi, police said.

The attacker blew himself up next to a police checkpoint just meters from the gates to the residence of one of Musharraf's most senior officers, General Tariq Majid, chairman of the joint chiefs of staff. promoted, Majid had not yet moved in.

A Reuters photographer saw a head hanging from the branches of a tree. Typically the upward force from a suicide bomber's exploding vest blows the head off.

U.S. ally General Musharraf was meeting army commanders at General Headquarters some 2 km (one mile) away at the time of the blast, officials .

Hours later, inaugurating a highway in North West Frontier Province (NWFP), Musharraf spoke of the militancy fanning out from tribal areas in the province.

"If we do not stop this deluge, if we do not check this extremism and terrorism, serious problems for Pakistan," Musharraf said in a speech.

Nuclear-armed Pakistan mounting political uncertainty and insecurity, as U.S. ally Musharraf, who came to power in a coup eight years ago, tries to engineer a transition to civilian-led democracy while remaining at the helm.

The latest attack took place on a road where many of Pakistan's top brass reside.

The alternative containing the words that correctly complete the gaps in the text is, respectively:

According to Barbosa’s model (2004), the translations of the language samples below are instances of, respectively:

It is a known fact = É fato conhecido.
She said apologetically = Ela disse desculpando-se.
Like the back of my hand = Como a palma da minha mão.
God bless you! = Saúde!

Date rape, according to some researchers, is a major social problem so far studied mostly through surveys of college students. In a three-year study of 6,200 male and female students on 32 campuses, Kent State Psychologist Mary Koss found that 15% of all women reported experiences that met legal definitions of forcible rape. More than half those cases were date rapes. Andrea Parrot, a lecturer at Cornell University, estimates that 20% of college women at two campuses she surveyed had been forced into sex during their college years or before, and most of these incidents were date rapes. (TIME Magazine)

The LEAST accurate translation of the two first sentences of the text is:

1) In England, however, the tungsten-tipped spikes would tear the thin tarmac surfaces of our roads to pieces as soon as the protective layer of snow or ice melted.

2) Road maintenance crews try to reduce the danger of skidding by scattering sand upon the road surfaces.

3) We therefore have to settle for the method described above as the lesser of two evils.

4) Their spikes grip the icy surfaces and enable the motorist to corner safely where non-spiked tyres would be disastrous.

5) Its main drawback is that if there are fresh snowfalls the whole process has to be preheated, and if the snowfalls continue, it becomes increasingly ineffective in providing some kind of grip for tyres.

6) These tyres prevent most skidding and are effective in the extreme weather conditions as long as the roads are regularly cleared of loose snow.

7) Such a measure is generally adequate for our very brief snowfalls.

8) Whenever there is snow in England, some of the country roads may have black ice.

9) In Norway, where there may be snow and ice for nearly seven months of the year, the law requires that all cars be fitted with special steel spiked tyres.

10) Motorists coming suddenly upon stretches of black ice may find themselves skidding off the road.

According to the text, it is INCORRECT to say that:

(Disponível em: www.chageonline.com.br. Acesso em: 20 de maio de 2013.)

A palavra “conta” adquire vários sentidos na charge de Geraldo Passofundo. Em todas as alternativas informou-se o sentido correto, EXCETO em:

Buscar o original é empreendimento similar ao que Proust procurou realizar quando saiu em busca do tempo perdido. A busca consistia em realizar viagem ao imaginário que se produziu a partir de uma experiência passada, mas a experiência propriamente dita ficou irrecuperavelmente presa ao contexto histórico que a produziu. Apesar da impossibilidade de apresentar o original aos seus leitores, pois Proust certamente não pretendia realizar um documento histórico descrevendo cada batida do seu coração, mesmo porque o documento histórico tampouco representaria o original, o tempo não fora perdido nem para Proust, menos ainda para os seus leitores. Proust não recupera o tempo perdido, mas cria um tempo que é e não é original. A originalidade fica por conta do uso que Proust faz de histórias já contadas, com outras criadas a partir de suas experiências pessoais. O encanto maior na busca que Proust faz ao seu passado perdido é o percurso que ele nos leva a atravessar. É o percurso e não o destino, dizia Guimarães Rosa, que importa. Até porque, e agora quem dizia era T. S. Eliot, quando chegamos, chegamos ao ponto de onde partimos. Chegar, portanto, não é o que nos importa em vida, navegar é que é preciso.

The most accurate version of the sentence below is:

“Chegar, portanto, não é o que nos importa em vida, navegar é que é preciso.”