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Q503322 Matemática
A função f: ℜ→ℜ é definida por:

Imagem associada para resolução da questão


Marque a opção verdadeira:
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Q503321 Matemática
Sejam x e y números reais não nulos tais que:

Imagem associada para resolução da questão

O valor de imagem-004.jpg é:
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Q503320 Matemática
Os lados a, b e c de um triângulo estão em PA nesta ordem, sendo opostos aos ângulos internos imagem-001.jpg, respectivamente. Determine o valor da expressão:

imagem-002.jpg
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Q678489 Inglês

Na questão, encontra-se em destaque cinco termos ou expressões. Assinale a alternativa correspondente ao termo cujo emprego está incorreto.  

As soon as she walked up, she put her arm around my neck and we are hugging and kind of shared a 'thank you'-type embrace and I never saw her again.  

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Q678488 Inglês

Na questão, encontra-se em destaque cinco termos ou expressões. Assinale a alternativa correspondente ao termo cujo emprego está incorreto.  

If Bono really knew the history of his own people, he would be aware that the Great Irish Famine of the 1840s was not the result of a food short. Famines rarely are. There were plenty of crops in the country, but they had to be exported to pay the landlords' rents. There was also enough food in Britain at the time to feed Ireland several times over.  

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Q678487 Inglês

Na questão, encontra-se em destaque cinco termos ou expressões. Assinale a alternativa correspondente ao termo cujo emprego está incorreto.

Neymar's performances at the Confederations Cup show why Barcelona paid £48.6m for his signing. But Early's examination of his person power and marketing potential explain how the club will recoup that money.

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Q678484 Inglês

Para a questão, escolha a alternativa que complete a sentença corretamente:

Coptic Christians in Egypt ________________ persecution at the hands of the government. Claims against them under Mubarak’s regime were rarely punished. They have faced open discrimination while remaining peaceful.

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Q678483 Inglês

Para a questão, escolha a alternativa que complete a sentença corretamente:

_____________ the cost of a college education at Central Wyoming College is relatively low, many students need and receive financial aid.

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Q678482 Inglês

Para a questão, escolha a alternativa que complete a sentença corretamente:

If we don’t hurry up, all the best seats ___________.

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Q678481 Inglês

Para a questão, escolha a alternativa que complete a sentença corretamente:

Not only _____________ his house, but his wife also walked out on him.

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Q678480 Inglês

Para a questão, escolha a alternativa que complete a sentença corretamente:

Don’t be ridiculous! That man _______________ possibly be Barrack Obama!

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Q678479 Inglês

Para a questão, escolha a alternativa que complete a sentença corretamente:

Fat? No way! Jane isn’t fat at all. _______________________, she is quite skinny.

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Q678478 Inglês

Para a questão, escolha a alternativa que complete a sentença corretamente:

Thousands gathered at Taksim Square in Turkey to protest the court ________________ on Ethem Sarisülük’s case. Ethem Sarisülük was shot in the head by a policeman during Gezi protests and the murderer was released by the court pending a trial.

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Q678477 Inglês

Para a questão, escolha a alternativa que complete a sentença corretamente:

In 2013, agents rescued 337 children and took 964 alleged predators __________ the street.

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Q678476 Inglês

Para a questão, escolha a alternativa que complete a sentença corretamente:

Using a high-tech kit, the police found a single clue, tracked it _________ and saved the girl.

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Q678475 Inglês

Para a questão, escolha a alternativa que complete a sentença corretamente:

I grew up in Brisbane, Australia, _______ a shady quiet street in the old part of town.

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Q678470 Inglês

                                   WHY IS HANDWRITING IMPORTANT?

Jotting down a shopping list, writing a birthday card, taking down a phone message, completing a form at the bank ….handwriting is part of our daily lives. It is on show to others and may be used to make judgments about us.

Writing has a very long history. It began as simple pictographs drawn on a rock, which were then combined to represent ideas and developed into more abstract symbols. Just like our writing today, early symbols were used to store information and communicate it to others.

In recent years, modern technology has dramatically changed the way we communicate through writing. However, despite the increased use of computers for writing, the skill of handwriting remains important in education, employment and in everyday life.  

Time devoted to the teaching and learning of letter formation in the early years will pay off. Legible writing that can be produced comfortably, at speed and with little conscious effort allows a child to attend to the higher-level aspects of writing composition and content. This is important when assessments are based on written work, particularly in time-limited written examinations, which remain as a major form of assessment for many formal qualifications. Without fast and legible handwriting, students may miss out on learning opportunities and under-achieve academically.

Beyond formal education, most employment situations will involve at least some handwriting and many require the communication of critical information (e.g. medical notes, prescriptions).

Thus, handwriting with pen and paper still has an important role from early childhood through our adult lives, but more and more, people are shifting from paper to electronic modes of communication. Interestingly though, many personal computers now have handwriting recognition capability so that handwriting as means of interacting with computers is becoming more pervasive. It seems, therefore, that even in this modern age, handwriting remains an important skill for communication.

Disponível em: <http://www.nha-handwriting.org.uk/handwriting/why-is-handwriting-importanT> . Acesso em 29 mai.2013 

According to the passage, we can infer that handwriting
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Q678469 Inglês

                                        ARE YOU A FACEBOOK ADDICT? 

Are you a social media enthusiast or simply a Facebook addict? Researchers from Norway have developed a new instrument to measure Facebook addiction, the Bergen Facebook Addiction Scale.

"The use of Facebook has increased rapidly. We are dealing with a subdivision of Internet addiction connected to social media," Doctor of Psychology Cecilie Schou Andreassen says about the study, which is the first of its kind worldwide.

Andreassen heads the research project “Facebook Addiction” at the University of Bergen (UiB). An article about the results has just been published in the renowned journal Psychological Reports. She has clear views as to why some people develop Facebook dependency.

"It occurs more regularly among younger than older users. We have also found that people who are anxious and socially insecure use Facebook more than those with lower scores on those traits, probably because those who are anxious find it easier to communicate via social media than face-to face," Andreassen says.

People who are organised and more ambitious tend to be less at risk from Facebook addiction. They will often use social media as an integral part of work and networking.

"Our research also indicates that women are more at risk of developing Facebook addiction, probably due to the social nature of Facebook," Andreassen says.

Six warning signs

As Facebook has become as ubiquitous as television in our everyday lives, it is becoming increasingly difficult for many people to know if they are addicted to social media. Andreassen’s study shows that the symptoms of Facebook addiction resemble those of drug addic addiction, and chemical substance addiction.

The Bergen Facebook Addiction Scale is based on six basic criteria, where all items are scored on the following scale: (1) Very rarely, (2) Rarely, (3) Sometimes, (4) Often Always. 

• You spend a lot of time thinking about Facebook or planning to use of Facebook.

• You feel an urge to use Facebook more and more.

• You use Facebook in order to forget about personal problems.

• You have tried to cut down on the use of Facebook without success.

• You become restless or troubled if you are prohibited from using Facebook.

• You use Facebook so much that it has had a negative impact on your job/studies.

Andreassen’s study shows that scoring “often” or “very often” on at least four of the six items may suggest that you are addicted to Facebook.

Disponível em: <http://www.sciencedaily.com/releases/2012/05/120507102054.htm> Acesso em: 3 jun. 2013 (Texto adaptado)  

The word resemble in the sentence “Andreassen’s study shows that the symptoms of Facebook addiction resemble those of drug addiction, alcohol addiction, and chemical substance addiction.” can be replace by:
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Q678464 Português

Em qual dos trechos a seguir o uso da vírgula justifica-se pelo mesmo motivo que a vírgula foi usada no período destacado?  

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Q678463 Português

A questão refere-se ao trecho do texto 1, destacado a seguir:

“Olhando os enigmas que nos rodeiam e ponderando e analisando as minhas observações, entro em contato com o mundo da matemática.”

Em relação às combinações sintáticas do trecho acima, qual das opções apresenta uma análise equivocada referentes às expressões destacadas abaixo?

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Respostas
441: B
442: A
443: B
444: C
445: A
446: D
447: A
448: A
449: C
450: A
451: B
452: E
453: D
454: C
455: A
456: C
457: A
458: D
459: C
460: A