Questões do ENEM: Centro de Educação Superior a Distância do Estado do Rio de Janeiro (CEDERJ)
Use os filtros para chegar às questões que interessam. Cada resultado abre em uma página própria com enunciado, alternativas e gabarito.
- Filtrando por
- Centro de Educação Superior a Distância do Estado do Rio de Janeiro (CEDERJ)Remover este filtro
Resultados
1.157 questões encontradas. Mostrando a página 20 de 58.
2396F44D-04 A diferença entre ciência e fé é a seguinte: em ciência, a gente tem que ver para crer. Você observa a natureza, você observa o mundo, obtém dados sobre como o mundo funciona, analisa esses dados e entende. Pela fé, você crê para ver. A crença vem antes da visão. Você acredita naquilo, nem precisa ver nada, acredita naquilo e esse, essencialmente, é o cerne da fé, que é uma outra maneira de se relacionar com a realidade, muito diferente da ciência.Infelizmente, hoje em dia, parece que essa questão está novamente a mil com a chamada ‘guerra’ entre a ciência e a religião. Na verdade, essa é uma guerra fabricada, porque, por exemplo, se você pergunta aos cientistas, mais ou menos 40% deles, ao menos nos Estados Unidos — não sei se existe essa estatística no Brasil, talvez seja até maior aqui —, acreditam em alguma forma de divindade, de Deus.
(...)
Para esses cientistas, existe um compromisso, uma complementaridade entre o seu trabalho e a sua fé. Não existe nenhum problema nesse caso. Mas, infelizmente, existe conflito em outras situações.
(...)
A criança aprende numa aula que houve toda uma evolução da vida, os fósseis etc., 3,5 bilhões de anos de evolução da vida aqui na Terra enquanto, na outra aula, o professor diz que não. Que em seis dias Deus fez o mundo, que nós somos todos descendentes de Adão e Eva e o mundo tem apenas dez mil anos.Note que a proposta é que isso seja ensinado em pé de igualdade. São duas versões da mesma história e nenhuma é melhor do que a outra. Mas são, sim, duas histórias muito diferentes, com um objetivo muito diferente. Então, a questão é como é construída a informação na ciência.(...) Não existe a possibilidade de um cientista afirmar: eu acho que esse pedaço de osso aqui tem três milhões de anos. Você sabe que tem três milhões de anos, com grande precisão.(...)Disponível em https://www.fronteiras.com/artigos/21-ideias-marcelo-gleiser-e-a-complementaridade-entre-religiao-e-ciencia - adaptado. Acesso em: 05 demaio de 2021.
O texto I estabelece uma relação entre ciência e religião. De acordo com o autor, é possível afirmar que tanto a ciência quanto a religião são6306FB07-8E Inglês
Interpretação de texto | Reading comprehensionCEDERJ · 2020FácilEntre para guardar nos favoritosWhat about the artists?
The Guardian - Wed 14 Oct 2020
The government is deaf to the plight of freelance musicians and othercreatives
On Monday, a number of British arts organisations finally heard whether they had received grants from the £1.57bn bailout fund announced in July by the chancellor, Rishi Sunak. Not a moment too soon, institutions such as Wigmore Hall in London, Bristol Old Vic and the City of Birmingham Symphony Orchestra have been given a cash bufferthatshould keep them alive until March.
The welcome announcement has been marred, though, by the failure of the government to address the question of freelancers and self-employed people in the arts. In an interview with ITV last week, Mr. Sunak was asked what he thought professional musicians ought to do, given that they can’t earn enough to live. He answered that up to 3 million people in the country qualified for help under the self-employed support scheme. Pressed on whether musicians oughttofind differentwork, he mentioned retraining schemes that are "providing new and fresh opportunity”. People must adapt, he said. He added that it was untrue that there was no work for musicians. Music lessons, in his own household at least, were still going on.
The interviewer’s question was specifically about musicians - a third of whom have been ineligible for the selfemployed support scheme. So even if, as he later asserted, Mr Sunak was talking about the workforce as a whole rather than cultural workers in particular when he spoke of the need to retrain, he certainly gave a strong impression of indifference to and ignorance of musicians’ plight. This was reinforced on Monday when a government-backed advertisement went viral, launching hundreds of derisive parodies. Aiming to recruit workers into cybersecurity roles, it showed a dancer doing up her ballet shoes. It read: "Fatima’s next job could be in cyber (she just doesn’t know it yet)”.The culture secretary, Oliver Dowden, was forced to condemn the advertisement as "crass” as his day of good news descended into farce and contumely. The government seems unable to grasp that putting money into the arts infrastructure is only part of the solution; creatives themselves need to be helped to survive economically too. Though some institutions are putting work on stage - and will be helped to do so in the months to come by the rescue package - these events will necessarily be small-scale, representing a drop in the ocean compared with the industry working at full tilt.New digital business models are being explored, but they are in their infancy and are not going to pay next month’s rent. Moreover, performance dates in the diary - that is, employment opportunities for freelancers - amount to perilous bets against the future course of the virus. As infections soar, organisations are bound, quite rightly, to be cautious, particularly in the face of the catastrophic failure of the government’s test-and-trace scheme.Meanwhile, musicians and others are certainly "adapting” - often to unskilled, low-paid work, though there is not much of that to go around. The government’s continued implication that musicians and other creative workers - many of whom have trained since childhood for some of the most demanding, competitive and highly skilled work in the economy - are somehow not "viable” is both insulting and ignorant. Underlying Mr Sunak’s remarks was the tired old Tory notion that creative jobs are not "real jobs”, and are undertaken by some fantastical species who are not, in fact, real people. Perhaps the chancellor should ask his family’s music teacher what it’s really like for artists right now - and actually listen to the answer.Source: The Guardian, available at https://www.theguardian. com/commentisfree/2020/oct/14/the-guardian-view-on-saving-thearts-what-about-the-artists, accessed on October21st, 2020.
Considering the expression of happenings in the past, verbs vary following time precision or imprecision. The example extracted from the editorial that reflects unspecified time is:63043F53-8E Inglês
Interpretação de texto | Reading comprehensionCEDERJ · 2020MédioEntre para guardar nos favoritosWhat about the artists?
The Guardian - Wed 14 Oct 2020
The government is deaf to the plight of freelance musicians and othercreatives
On Monday, a number of British arts organisations finally heard whether they had received grants from the £1.57bn bailout fund announced in July by the chancellor, Rishi Sunak. Not a moment too soon, institutions such as Wigmore Hall in London, Bristol Old Vic and the City of Birmingham Symphony Orchestra have been given a cash bufferthatshould keep them alive until March.
The welcome announcement has been marred, though, by the failure of the government to address the question of freelancers and self-employed people in the arts. In an interview with ITV last week, Mr. Sunak was asked what he thought professional musicians ought to do, given that they can’t earn enough to live. He answered that up to 3 million people in the country qualified for help under the self-employed support scheme. Pressed on whether musicians oughttofind differentwork, he mentioned retraining schemes that are "providing new and fresh opportunity”. People must adapt, he said. He added that it was untrue that there was no work for musicians. Music lessons, in his own household at least, were still going on.
The interviewer’s question was specifically about musicians - a third of whom have been ineligible for the selfemployed support scheme. So even if, as he later asserted, Mr Sunak was talking about the workforce as a whole rather than cultural workers in particular when he spoke of the need to retrain, he certainly gave a strong impression of indifference to and ignorance of musicians’ plight. This was reinforced on Monday when a government-backed advertisement went viral, launching hundreds of derisive parodies. Aiming to recruit workers into cybersecurity roles, it showed a dancer doing up her ballet shoes. It read: "Fatima’s next job could be in cyber (she just doesn’t know it yet)”.The culture secretary, Oliver Dowden, was forced to condemn the advertisement as "crass” as his day of good news descended into farce and contumely. The government seems unable to grasp that putting money into the arts infrastructure is only part of the solution; creatives themselves need to be helped to survive economically too. Though some institutions are putting work on stage - and will be helped to do so in the months to come by the rescue package - these events will necessarily be small-scale, representing a drop in the ocean compared with the industry working at full tilt.New digital business models are being explored, but they are in their infancy and are not going to pay next month’s rent. Moreover, performance dates in the diary - that is, employment opportunities for freelancers - amount to perilous bets against the future course of the virus. As infections soar, organisations are bound, quite rightly, to be cautious, particularly in the face of the catastrophic failure of the government’s test-and-trace scheme.Meanwhile, musicians and others are certainly "adapting” - often to unskilled, low-paid work, though there is not much of that to go around. The government’s continued implication that musicians and other creative workers - many of whom have trained since childhood for some of the most demanding, competitive and highly skilled work in the economy - are somehow not "viable” is both insulting and ignorant. Underlying Mr Sunak’s remarks was the tired old Tory notion that creative jobs are not "real jobs”, and are undertaken by some fantastical species who are not, in fact, real people. Perhaps the chancellor should ask his family’s music teacher what it’s really like for artists right now - and actually listen to the answer.Source: The Guardian, available at https://www.theguardian. com/commentisfree/2020/oct/14/the-guardian-view-on-saving-thearts-what-about-the-artists, accessed on October21st, 2020.
The second and first paragraphs are linked by a notion of contrast, which is explicitly conveyed by the linking word "though” (2nd paragraph). The contrast refers to the difference in treatment between::63019382-8E Inglês
Interpretação de texto | Reading comprehensionCEDERJ · 2020MédioEntre para guardar nos favoritosWhat about the artists?
The Guardian - Wed 14 Oct 2020
The government is deaf to the plight of freelance musicians and othercreatives
On Monday, a number of British arts organisations finally heard whether they had received grants from the £1.57bn bailout fund announced in July by the chancellor, Rishi Sunak. Not a moment too soon, institutions such as Wigmore Hall in London, Bristol Old Vic and the City of Birmingham Symphony Orchestra have been given a cash bufferthatshould keep them alive until March.
The welcome announcement has been marred, though, by the failure of the government to address the question of freelancers and self-employed people in the arts. In an interview with ITV last week, Mr. Sunak was asked what he thought professional musicians ought to do, given that they can’t earn enough to live. He answered that up to 3 million people in the country qualified for help under the self-employed support scheme. Pressed on whether musicians oughttofind differentwork, he mentioned retraining schemes that are "providing new and fresh opportunity”. People must adapt, he said. He added that it was untrue that there was no work for musicians. Music lessons, in his own household at least, were still going on.
The interviewer’s question was specifically about musicians - a third of whom have been ineligible for the selfemployed support scheme. So even if, as he later asserted, Mr Sunak was talking about the workforce as a whole rather than cultural workers in particular when he spoke of the need to retrain, he certainly gave a strong impression of indifference to and ignorance of musicians’ plight. This was reinforced on Monday when a government-backed advertisement went viral, launching hundreds of derisive parodies. Aiming to recruit workers into cybersecurity roles, it showed a dancer doing up her ballet shoes. It read: "Fatima’s next job could be in cyber (she just doesn’t know it yet)”.The culture secretary, Oliver Dowden, was forced to condemn the advertisement as "crass” as his day of good news descended into farce and contumely. The government seems unable to grasp that putting money into the arts infrastructure is only part of the solution; creatives themselves need to be helped to survive economically too. Though some institutions are putting work on stage - and will be helped to do so in the months to come by the rescue package - these events will necessarily be small-scale, representing a drop in the ocean compared with the industry working at full tilt.New digital business models are being explored, but they are in their infancy and are not going to pay next month’s rent. Moreover, performance dates in the diary - that is, employment opportunities for freelancers - amount to perilous bets against the future course of the virus. As infections soar, organisations are bound, quite rightly, to be cautious, particularly in the face of the catastrophic failure of the government’s test-and-trace scheme.Meanwhile, musicians and others are certainly "adapting” - often to unskilled, low-paid work, though there is not much of that to go around. The government’s continued implication that musicians and other creative workers - many of whom have trained since childhood for some of the most demanding, competitive and highly skilled work in the economy - are somehow not "viable” is both insulting and ignorant. Underlying Mr Sunak’s remarks was the tired old Tory notion that creative jobs are not "real jobs”, and are undertaken by some fantastical species who are not, in fact, real people. Perhaps the chancellor should ask his family’s music teacher what it’s really like for artists right now - and actually listen to the answer.Source: The Guardian, available at https://www.theguardian. com/commentisfree/2020/oct/14/the-guardian-view-on-saving-thearts-what-about-the-artists, accessed on October21st, 2020.
The "3 million people in the country qualified for help under the self-employed support scheme” (2nd paragraph) includes the following group of people:62FE86B3-8E Inglês
Interpretação de texto | Reading comprehensionCEDERJ · 2020FácilEntre para guardar nos favoritosWhat about the artists?
The Guardian - Wed 14 Oct 2020
The government is deaf to the plight of freelance musicians and othercreatives
On Monday, a number of British arts organisations finally heard whether they had received grants from the £1.57bn bailout fund announced in July by the chancellor, Rishi Sunak. Not a moment too soon, institutions such as Wigmore Hall in London, Bristol Old Vic and the City of Birmingham Symphony Orchestra have been given a cash bufferthatshould keep them alive until March.
The welcome announcement has been marred, though, by the failure of the government to address the question of freelancers and self-employed people in the arts. In an interview with ITV last week, Mr. Sunak was asked what he thought professional musicians ought to do, given that they can’t earn enough to live. He answered that up to 3 million people in the country qualified for help under the self-employed support scheme. Pressed on whether musicians oughttofind differentwork, he mentioned retraining schemes that are "providing new and fresh opportunity”. People must adapt, he said. He added that it was untrue that there was no work for musicians. Music lessons, in his own household at least, were still going on.
The interviewer’s question was specifically about musicians - a third of whom have been ineligible for the selfemployed support scheme. So even if, as he later asserted, Mr Sunak was talking about the workforce as a whole rather than cultural workers in particular when he spoke of the need to retrain, he certainly gave a strong impression of indifference to and ignorance of musicians’ plight. This was reinforced on Monday when a government-backed advertisement went viral, launching hundreds of derisive parodies. Aiming to recruit workers into cybersecurity roles, it showed a dancer doing up her ballet shoes. It read: "Fatima’s next job could be in cyber (she just doesn’t know it yet)”.The culture secretary, Oliver Dowden, was forced to condemn the advertisement as "crass” as his day of good news descended into farce and contumely. The government seems unable to grasp that putting money into the arts infrastructure is only part of the solution; creatives themselves need to be helped to survive economically too. Though some institutions are putting work on stage - and will be helped to do so in the months to come by the rescue package - these events will necessarily be small-scale, representing a drop in the ocean compared with the industry working at full tilt.New digital business models are being explored, but they are in their infancy and are not going to pay next month’s rent. Moreover, performance dates in the diary - that is, employment opportunities for freelancers - amount to perilous bets against the future course of the virus. As infections soar, organisations are bound, quite rightly, to be cautious, particularly in the face of the catastrophic failure of the government’s test-and-trace scheme.Meanwhile, musicians and others are certainly "adapting” - often to unskilled, low-paid work, though there is not much of that to go around. The government’s continued implication that musicians and other creative workers - many of whom have trained since childhood for some of the most demanding, competitive and highly skilled work in the economy - are somehow not "viable” is both insulting and ignorant. Underlying Mr Sunak’s remarks was the tired old Tory notion that creative jobs are not "real jobs”, and are undertaken by some fantastical species who are not, in fact, real people. Perhaps the chancellor should ask his family’s music teacher what it’s really like for artists right now - and actually listen to the answer.Source: The Guardian, available at https://www.theguardian. com/commentisfree/2020/oct/14/the-guardian-view-on-saving-thearts-what-about-the-artists, accessed on October21st, 2020.
The opinion editorial above advances the following position:62FB8FE4-8E Química
Principais Funções Orgânicas: Funções Oxigenadas: Cetona, Aldeído, Éter, Éster, Ácido Carboxílico, Anidrido Orgânico e Cloreto de Ácido.CEDERJ · 2020DifícilEntre para guardar nos favoritosA função orgânica dos ésteres é conhecida por sua aplicação como aditivos em alimentos que conferem fragrâncias e sabores artificiais. A tabela abaixo indica alguns ésteres e suas respectivas fragrâncias ou sabores associados.Éster Fragrância ou saborAcetato de isoamila BananaAcetato de propila Pera2-metilbutanoato de etila Maçã verde2-metilpropanoato de propila RumHexanoato de alila AbacaxiAcetato de isobutila FramboesaEm um laboratório de química orgânica, foram feitas transformações com dois destes ésteres:I) O éster relativo à fragrância de abacaxi foi hidrolisado em meio ácido. O álcool formado sofreu uma hidrogenação catalítica, gerando o composto A.II) O éster relativo à fragrância de framboesa também foi hidrolisado em meio ácido. O álcool formado foi oxidado na presença de KMnO4/H2SO4, gerando o composto B.A alternativa que mostra a fragrância do éster formado pela reação entre os compostos AeBem meio ácido é:
62F8BA76-8E Química
Equilíbrio QuímicoCEDERJ · 2020MédioEntre para guardar nos favoritosO vinagre é um insumo presente na maioria das cozinhas de casas e restaurantes, cujo principal constituinte é o ácido acético (pKa = 5). Sua produção é feita pela fermentação alcoólica de um carboidrato, que pode vir, por exemplo, da maçã ou do arroz, por leveduras, gerando etanol como principal produto. Em seguida, é feita a fermentação acética do etanol por acetobactérias, convertendo-o a ácido acético.Considere que uma colher de sopa de vinagre com um teor de ácido acético de 3,0 % (m/v) foi misturada com 4 colheres de sopa de água para ser usada em limpeza. O valor de pH do vinagre após a diluição é de:62F5D930-8E Química
Termoquímica: Energia Calorífica, Calor de reação, Entalpia, Equações e Lei de Hess.CEDERJ · 2020MédioEntre para guardar nos favoritosA queima completa de combustíveis que contém carbono em sua composição gera dióxido de carbono, um dos principais gases responsáveis pelo fenômeno do aquecimento global. O uso de etanol como combustível em veículos automotivos é uma iniciativa que reduz a emissão de dióxido de carbono para a atmosfera.Considere a combustão completa de etanol suficiente para gerar um calor de 1.105 kJ.
Com base na entalpia de formação aproximada dos compostos dados na tabela, a massa de gás carbônico, em kg, liberada nessa queima é de, aproximadamente:
62F3168E-8E Química
Eletroquímica: Oxirredução, Potenciais Padrão de Redução, Pilha, Eletrólise e Leis de Faraday.CEDERJ · 2020MédioEntre para guardar nos favoritosAnalise a tabela de potenciais padrão de redução a seguir:Semirreação Eu (V)Al3+ (aq) + 3 e- ⇌ A I (s) -1,66Zn2+ (aq) + 2 e- ⇌ Zn (s) -0,76Fe2+ (aq) + 2 e- ⇌ Fe (s) -0,44Cu2+ (aq) + 2 e- ⇌ Cu (s) +0,34Ag+ (aq) + e- ⇌ A g (s) +0,80Com base na tabela, a afirmativa correta em relação ao processo de corrosão de metais é:
62F0617F-8E Química
Propriedades Físicas dos Compostos Orgânicos: Polaridade das Ligações e Moléculas, Forças Intermoleculares, Ponto de Fusão e Ponto de Ebulição, Solubilização das Substâncias Orgânicas.CEDERJ · 2020DifícilEntre para guardar nos favoritosUm grupo de pesquisadoras testava o efeito inibitório de extratos de um produto natural sobre a atividade de certa enzima envolvida em uma doença. A equipe preparou cinco extratos com mesmas quantidades do produto e condições de extração, alterando apenas o solvente:Extrato 1 - Hexano; Extrato 2 - Etanoato de etila; Extrato 3 - Água; Extrato 4 - Solução aquosa de HCl 5 %; Extrato 5 - Solução aquosa de NaOH 5 %.Em seguida, foi feito o ensaio de inibição enzimática a 0,1 mg/mL de cada extrato, sendo obtido o gráfico abaixo:
Após novos estudos, as pesquisadoras notaram que o Extrato 2 continha todas as moléculas detectadas nos outros extratos com possível atividade inibitória. Suas estruturas são dadas a seguir:
Sabendo dessas informações, a alternativa que indica o provável composto responsável pelo efeito inibitório na enzima é:
62ECDD0F-8E Química
Equilíbrio QuímicoCEDERJ · 2020MédioEntre para guardar nos favoritosO sulfato de bário é utilizado como contraste para radiografias. Porém, sabe-se que os íons Ba2+ são tóxicos, tendo uma dose letal de 0,5 g para um adulto com cerca de 70 quilogramas. Como o sal citado tem baixíssima solubilidade em água (Kps = 1.10-10), a forma tóxica Ba2+ jamais atinge a dose letal. Ainda assim, adiciona-se sulfato de potássio ao contraste, reduzindo ainda mais a solubilidade.Considere um frasco de contraste contendo 100 mL de suspensão de sulfato de bário na presença de sulfato de potássio 0,01 mol.L-1. A massa de bário presente na forma de íons Ba2+ na suspensão está na ordem de:62EA277E-8E Química
Cadeias Carbônicas: Características e Classificações do Átomo do Carbono, Tipos de Ligação e Hibridação. Tipos de Cadeias Carbônicas e Fórmulas. Séries: Homóloga, Isóloga e Heteróloga.CEDERJ · 2020MédioEntre para guardar nos favoritosCheiro e gosto ruins na água do RJ não foram por geosmina, segundo análises da UFRJ"O gosto e cheiro ruins na água do Rio de Janeiro do início do ano não foram causados pela geosmina, segundo análises de pesquisadores da UFRJ (Universidade Federal do RJ). Um laudo do estudo revelou que a substância encontrada na água tem estrutura parecida, mas não é a geosmina.Por meio de nota, a Cedae informou que tanto a geosmina quanto o 2-Metil-lsoborneol (MIB) são compostos orgânicos produzidos pela cianobactéria Planktotrix. As duas causam alterações no gosto e odor da água, mas nenhuma delas causa danos à saúde.”(Fonte: https://www.tratamentodeagua.com.br/geosmina-anali-ses-ufrj/, acessado em 29 de outubro de 2020)
Uma similaridade estrutural entre a geosmina e o MIB é que ambos:
62E6F8C8-8E Química
Estudo da matéria: substâncias, misturas, processos de separação.CEDERJ · 2020FácilEntre para guardar nos favoritosAs estações de tratamento de água são como verdadeiras fábricas de produção de água potável. Uma das primeiras etapas no processo de tratamento da água é a clarificação, cujo objetivo é a remoção de sólidos suspensos. Neste processo, adiciona-se sulfato de alumínio na água, que funciona como um eletrólito que reduz a força de repulsão entre as partículas em suspensão, fazendo com que elas se agreguem em partículas maiores. Após isso, a água passa por tanques que promovem a sedimentação das partículas, separando-as da água. Partículas em suspensão residuais são posteriormente removidas ao passarem por tanques preenchidos com uma mistura de cascalho, areia e carvão.A alternativa que mostra corretamente três processos de separação de misturas realizados na etapa de clarificação da água nas estações tratamento é:62E07DCF-8E Matemática
Análise de Tabelas e GráficosCEDERJ · 2020FácilEntre para guardar nos favoritosAs baterias de dois celulares possuem cargas de 20% e 60% e o gráfico a seguir, formado por dois segmentos de retas, representa a porcentagem da carga Q de cada bateria durante a próxima hora.
Pelo gráfico, conclui-se que, ao final dessa hora, um celular descarregou por completo e o outro que estava carregando atingiu carga de 60%. O número total de minutos decorridos até que os dois celulares ficaram com a mesma carga foi igual a:
62DDBC89-8E Matemática
Progressão Aritmética - PACEDERJ · 2020FácilEntre para guardar nos favoritosAdmita que cada elemento da sequência (240, x, y, z, 420, t) represente o número total de pessoas testadas e com resultado positivo para COVID durante uma semana, em cada um de 6 municípios de um determinado Estado.Se essa sequência é uma progressão aritmética, nessa semana de testagem o número total de casos com resultados positivos nos 6 municípios foi igual a:62DAF9C4-8E Matemática
Análise Combinatória em MatemáticaCEDERJ · 2020MédioEntre para guardar nos favoritosComo proteção na internet, João criptografa cada documento com uma única senha formada com as sete letras da sigla CECIERJ, de modo que as 3 vogais ficam juntas e as 4 consoantes também. Se as senhas de todos os documentos são distintas entre si, o número máximo de documentos que João poderá proteger é igual a:62D843D4-8E Matemática
Função de 1º Grau ou Função Afim, Problemas com Equação e InequaçõesCEDERJ · 2020FácilEntre para guardar nos favoritosUma pequena confecção produz exclusivamente camisas. Admita que a quantidade N de camisas produzidas mensalmente no primeiro semestre de 2020 seja dada pela função N(t)=125+6.2∧((t-1)), sendo t, como mostra a tabela abaixo, o número que representa o mês do semestre.Mês tJaneiro 1
Fevereiro 2Março 3Abril 4Maio 5Junho 6Com os dados acima, pode-se concluir que essa confecção produziu exatamente 173 camisas no mês de:
62D58155-8E Matemática
Geometria PlanaCEDERJ · 2020FácilEntre para guardar nos favoritosA figura a seguir representa um terreno retangular ABCD onde a região R, também retangular, possui área de 108 m2
Seja M o ponto médio do lado AB, e as medidas, em metros, dos segmentos ED, BC e CD respectivamente iguais a x, (2x +12) e 2x. O perímetro do retângulo ABCD corresponde à seguinte quantidade de metros:62D2D30E-8E Matemática
Geometria EspacialCEDERJ · 2020FácilEntre para guardar nos favoritosAfigura abaixo representa um bloco de concreto com a forma de um paralelepípedo retângulo que possui altura, comprimento e largura respectivamente iguais a 5 cm, 32 cm e 24 cm.
Considere que para se fabricar 1 m3 de concreto sejam necessários 13 sacos de cimento e que uma indústria receba uma encomenda de 600 desses blocos.A quantidade mínima de sacos de cimento necessários para a indústria atender esse pedido é:
62D00791-8E Matemática
ProbabilidadeCEDERJ · 2020FácilEntre para guardar nos favoritosAdmita que o serviço meteorológico afirme que a probabilidade de choverem um determinado dia seja igual a 3/5. Nesse mesmo dia, a probabilidade de Francisco ir ao cinema é de 1/4.A probabilidade de Francisco ir ao cinema e não chover nesse dia é igual a: