Questões de Concurso: Estudantes Universitários

Acerca das propriedades dos conjuntos numéricos, julgue o item a seguir.

Existem exatamente quatro números inteiros r para os quais a fração 14/ 2r + 1 é um número inteiro.

Considere a função F(t) = 0,8 sen(24pt), em que t ≥ 0, e, a partir dela, defina P(t) = 10 – 5 F(t + 1/48). Com base nessas informações, julgue o próximo item.

Para algum t0 ≥ 0, tem-se que P(t0) ≤ 5.

Considere a função F(t) = 0,8 sen(24pt), em que t ≥ 0, e, a partir dela, defina P(t) = 10 – 5 F(t + 1/48). Com base nessas informações, julgue o próximo item.

Para todo t ≥ 0, tem-se que F(t) ≤ 1.

Considere a função F(t) = 0,8 sen(24pt), em que t ≥ 0, e, a partir dela, defina P(t) = 10 – 5 F(t + 1/48). Com base nessas informações, julgue o próximo item.

Nos pontos t em que F(t) é máximo, P(t) é mínimo.

Considere a função F(t) = 0,8 sen(24pt), em que t ≥ 0, e, a partir dela, defina P(t) = 10 – 5 F(t + 1/48). Com base nessas informações, julgue o próximo item.

No intervalo [0, 1], existem mais de 20 valores de t para os quais F(t) = 0.

Considere a função F(t) = 0,8 sen(24Πt), em que t ≥ 0, e, a partir dela, defina P(t) = 10 – 5 F(t + 1/48). Com base nessas informações, julgue o próximo item.

Considerando-se que t1 ≤ t2 sejam números positivos, consecutivos, tais que F(t1) = F(t2), é correto afirmar que t2 – t1 < 1/12.

 Crossing the street while listening to an MP3 player may soon be illegal in New York. A law has been proposed in response to several deaths apparently caused by pedestrians stepping into traffic listening to iPods. The ban would also extend to other electronic devices including cell phones, video games and handheld email devices, and offenders would face a $ 100 fine.
      Pedestrians are getting so involved with what they are listening on their iPods that they don’t pay enough attention to the traffic, often with tragic consequences. According to some official information, many people are being killed as a result of stepping off the sidewalk in front of fast-moving vehicles. And most of the accidents can’t be avoided because the victims couldn’t even hear the warning because of the use of MP3.

                        Mark Hancock & Annie McDonald. English result upper-intermediate. Oxford University Press. p. 103 (adapted).

Judge the following items according to the text.
It is correct to infer from the text that, if people didn’t use electronic devices outside their homes, accidents wouldn’t happen.

Crossing the street while listening to an MP3 player may soon be illegal in New York. A law has been proposed in response to several deaths apparently caused by pedestrians stepping into traffic listening to iPods. The ban would also extend to other electronic devices including cell phones, video games and handheld email devices, and offenders would face a $ 100 fine.
      Pedestrians are getting so involved with what they are listening on their iPods that they don’t pay enough attention to the traffic, often with tragic consequences. According to some official information, many people are being killed as a result of stepping off the sidewalk in front of fast-moving vehicles. And most of the accidents can’t be avoided because the victims couldn’t even hear the warning because of the use of MP3.

                        Mark Hancock & Annie McDonald. English result upper-intermediate. Oxford University Press. p. 103 (adapted).

Judge the following items according to the text.
In New York, a law was proposed to forbid the use of MP3 outdoors.

   Crossing the street while listening to an MP3 player may soon be illegal in New York. A law has been proposed in response to several deaths apparently caused by pedestrians stepping into traffic listening to iPods. The ban would also extend to other electronic devices including cell phones, video games and handheld email devices, and offenders would face a $ 100 fine.
      Pedestrians are getting so involved with what they are listening on their iPods that they don’t pay enough attention to the traffic, often with tragic consequences. According to some official information, many people are being killed as a result of stepping off the sidewalk in front of fast-moving vehicles. And most of the accidents can’t be avoided because the victims couldn’t even hear the warning because of the use of MP3.

        Mark Hancock & Annie McDonald. English result upper-intermediate. Oxford University Press. p. 103 (adapted).
Judge the following items according to the text.

Most of the people who were involved in the accidents mentioned in the text couldn’t hear the vehicles approaching because they were distracted by their MP3 players.

 There are people who are latecomers wherever they go. Lateness is their way of life.
      Chronic lateness has spoilt friendships, and it’s a habit that has caused people to lose their jobs. Why, then, are so many people late?
      According to some specialists, not arriving on time can be a form of avoidance. You are late for a party, or coming home from work because you don’t want to be where you’re supposed to be. It can also be a habit learned on childhood from a parent or an old brother or sister who also ran late. For others, it’s a result of an inability to judge time.

      Whatever reason people have, lateness almost always annoys those of us who are always prompt to attend our commitments.

            Diane Washawsky. Spectrum book 4. Ana Veltford. Prentice Hall Regents. p.156 (adapted).

Based on the text, judge the following items.
Latecomers are people who hardly ever are on time for their appointments.