Questões de Conhecimentos Gerais

Seja ? a função real, de variável real, definida por f(x)= 3 ?x 3 ?x 2 . Podemos afirmar que

A reta r tangente à curva de equação x??xy+y=1, no ponto P =(x,y ), é paralela ao eixo das abscissas. Pode?se afirmar que o ponto P também pertence à reta de equação

Which sequence best completes the sentence below? People (1)________________ (2)__________________ hours and hours (3)_____________ video games (4)___________________ the same personality traits (5)____________________ people with Asperger's syndrome, a form of autism.

Considere a função f , de variável real x, definida por f(x)=sen 6 x+cos 6 x+m(sen 4 x), onde m ? ? é um valor que torna fconstante. A equação da circunferência tangente ao eixo y, cujo centro está no ponto de interseção das retas ?2mx+2y?5=0 é

Considering the text, what does the word "dwindling" mean in this extract? " (...) countries develop a nuclear threat to defend and secure dwindling food, water and energy supplies."

No universo U = ?+, o conjunto?solução da inequação é

Which sequence best completes the text below? A Special Easter Night Once upon a time there (1)_____________________ little white bunnies whose occupation (2)__________________ to

distribute coloured, painted and flower-drawn eggs on Easter Eve night, in a village of poor people. Sometimes they also (3)_____________________ them different items they (4)________________________ , like clothes and food. (http:llwww.ncsu.edulmidlink/wsleaster.htm)

Read the text and check the statements below. REAL BLUE SKY RESEARCH Just where in the world is the bluest sky? Expedia wanted to know for its "Blue Sky Explorer" project. They asked NPL to develop a blue sky standard and some cheap equipment to measure it. Their solution was to use cheap light-emitting

diodes as the light standard, rather than the typical expensive noble gas lamps, and the belt-and-braces device was calibrated against an international "colourimetry" standard. The result? Rio de Janeiro came out on top, followed by the Bay of Islands in New Zealand and Uluru in Australia. Unsurprisingly the UK did not figure in strongly in the top 10, but Castell Dinas Bran in Wales came in at number nine. b (Adapted fromhttp: / /news.bbc.co.uk/2/hi/science/nature/8059502.stm) Which is the best alternative considering some of the statements are true ( T ) and others are false ( F ) ? I- The research is about the colour of the sky in different parts of the planet. II- Expedia used a previous blue sky standard in the research. III- The lamps that are currently used in the measurement were replaced by cheap ones. IV- NPL adjusted the device to use an international "colourimentry" standard. V- Rio de Janeiro and New Zealand got first rank in the Research while Australia came in second. VI- It was a surprise that the UK did not figure in strongly in the top 10. The best alternative is

Seja r a reta que contém: (i) o ponto de interseção das retas (ii) o ponto médio do segmento de extremos A(1,0,?1) e B(3, ?4, 3) . As equações de r são

Which of the alternatives below completes the sentence correctly? (1 ) have you known her?

Which of the alternatives below completes the sentence correctly? There are no figures for__________________ (1) of the applicants successfully get off waiting lists. It varies since it depends on the strength of the application pool and whether the fully accepted students decide to attend or go elsewhere.

Observe the sign below. Who can use the seats?

Sejam a e b constantes reais positivas, a?b. Se x é uma variável real, então é

Which sequence best completes the text below? "That we are (1)_____________ the midst (2)_________________ crisis is now well understood. Our nation is (3)________________ war against a farreaching network (4)__________________ violence and hatred. Our economy is badly weakened, a consequence of great and irresponsibility(5)_________________the part of some, but also our collective failure (6)make choices and prepare the nation (7) a new age." (Adapted from Barack Obama's speech/ January, 2009)

Choose the best option to rewrite the sentence keeping the same meaning. On May 2"", 2008, Mary asked Paul: "Where did you go yesterday, honey"? ' Mary wanted to know where...

Considere a matriz e o polinômio p(x)=x 2 ?2x?3, onde x, m e n pertencem ao conjunto ? . Se o determinante da matriz A é divisível pelo polinômio p (x) podemos afirmar que o termo de ordem (m+n) do binômio

é

Um tanque de combustível tem a forma de um cilindro circular reto e sua altura mede três metros. O raio da base do cilindro vale, em metros, o dobro da soma dos cubos dos inversos das raízes da equacão: x 4 +4x 3 +8x 2 +8x+4=0. A área lateral do tanque, em m 2 ,mede

Which sequence best completes the text below? WHY SO MANY BOOKS?

Conventional wisdom among college and university students (and many of their parents) in early 2007 is that "everything needed for research is available free on the Web." Therefore, academic libraries are often viewed as costly dinosaursunnecessary expenses in today's environment. This idea is uninformed at best and foolish at worst. If college and university libraries and librarians (1) , we (2) to invent, better yet, re-invent them. (Adapted from http: /hme.educause.edu)

My little sister went to Peter's home yesterday. He was stressed and shouted: "Do not touch my things!" What did he say?

O valor mínimo relativo da função f , de variável real x , definida por vale

Um tapete de oito faixas deve ser pintado com as cores azul, preta e branca. A quantidade de maneiras que se pode pintar este tapete de modo que duas faixas consecutivas não sejam da mesma cor é

What is the correct way to complete the sentence below? Today black spots or shadow zones around Somalia only benefit pirates. ______________(1) well-lit watchtowers, in the form of maritime security outposts, can help change that.

Which sequence best completes the conversation below? Ann: Mary's car broke down yesterday. The mechanic said it will take him 4 days to fix it this time. Ben: Again? I can't believe it. (1) just a few days ago. I think she should find another mechanic!

Sendo a o primeiro termo de uma progressão geométrica, b o termo de ordem (n+ 1) e c o termo de ordem (2n+ 1), então a relação entre a, b e c é

Which alternative below is NOT CORRECT, based on this text? OBAMA SIGNALS MORE ACTIVE RESPONSE TO PIRACY The rescue of Captain Phillips drew widespread praise for the Navy and Mr. Obama, but some experts warned that it could escalate the campaign by Somali pirates, who have vowed to take revenge on Americans and are holding more than 200 hostages from other countries. Mr. Obama praised Captain Phillips for his "courage and leadership and selfless concern for his crew, " and he said he was "very proud" of the Navy and other American agencies involved in the operation. (Adapted fromhttp:/ /www.nytimes.com/2009/ 04/ 14/world/africa/14pirates.html?_r-1)

Which of the alternatives below completes the sentence correctly? He's been working on this project (1)______________

O resto da divisão do polinômio pelo polinômio N(x)=x+2, x ? ?, é igual a

What is NOT true according to the text?

Observe the picture below. Which alternative below is NOT possible to happen in this place, based on the sign?

Considere y=f(x) uma função real, de variável real, derivável até 2ª ordem e tal que f"(x)+ f(x) = 0, ? x ? ?. Se g(x)=f'(x)Senx?f(x)cosx+cos 2 x , então