Foram encontradas 100 questões.
Dada a função !$ f: \Re_{+}^{*} \rightarrow \Re !$ definida por !$ f ( x) = 5 \cdot \log_2x !$, o valor de !$ f (1) + f(2) !$ é
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Read the extract and answer question.
DIY stands for die?
Every year 70 people are killed and 250,000 people are injured in Britain in DIY (Do-It-Yourself) related accidents. Some blame the media for the pressure to make ordinary people perform beyond their capabilities in improving home. Andy Kane explains why he is so hooked on DIY: “As long as it’s safe and looks good I’m happy. It’s great feeling to stand back and say ‘I did that.’ ”
(Taken from Speak up magazine #152)
According to the extract,
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Questão presente nas seguintes provas
Na figura, !$ \overline{PT} !$ é tangente, em T, à circunferência de centro O e raio 6 m. Sabendo que P está situado a 10 m de O, então PT = m.
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Calcule o comprimento de onda, das ondas eletromagnéticas emitidas por uma emissora de rádio, as quais apresentam uma frequência de 30 MHz.
Considere a velocidade de propagação como sendo igual a da luz no vácuo, ou seja 300.000 km/s.
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Read the cartoon and answer question.
Fill in the blank with the suitable option:
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Um trapézio de bases x + 3 e 4x – 3, tem base média 2x + 2. A menor base mede
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Read the news and answer question.
Authorities in Ukraine and the Czech Republic were beefing up airport security measures in the wake of the suicide attack in Moscow. Police with sniffer dogs were randomly checking passengers and their luggage for possible explosives. Britain’s Department of Transport, responsible for Europe’s busiest airport, London’s Heathrow, declined to comment on any possible new airport measures, although such arrangements are kept under constant review. Security experts have warned is impossible to screen the crowds at arrival terminals because many airports have been turned into commercial centers, with shops, food courts, train stations and other facilities. The attack at Domodedovo’s international arrival areas killed 35 people and wounded 180.
Authorities in Ukraine and the Czech Republic were beefing up airport security measures in the wake of the suicide attack in Moscow. Police with sniffer dogs were randomly checking passengers and their luggage for possible explosives. Britain’s Department of Transport, responsible for Europe’s busiest airport, London’s Heathrow, declined to comment on any possible new airport measures, although such arrangements are kept under constant review. Security experts have warned is impossible to screen the crowds at arrival terminals because many airports have been turned into commercial centers, with shops, food courts, train stations and other facilities. The attack at Domodedovo’s international arrival areas killed 35 people and wounded 180.
Domodedovo Airport closed down temporarily after the blast but then reopened after only 20 minutes. Many aircrews and passengers in its secure departure and arrival areas at the time were not even aware of the blast.
What happened at Domodedovo shows that the airport lacks security.
(Taken from www.allvoices.com)
GLOSSARY
beef up – melhorar algo
beef up – melhorar algo
“luggage”, could be replaced by, except:
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Na figura, as circunferências 1, 2, 3 e 4 são congruentes entre si e cada uma delas tangencia duas das outras. Se a circunferência 5 tem apenas um ponto em comum com cada uma das outras quatro, é correto afirmar que
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Marque a alternativa em que a classificação do advérbio em destaque está incorreta.
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Um cilindro de altura H = 5 cm e raio da base R = 4 cm, tem volume V = !$ \pi \,cm^3 !$.
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Cadernos
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