Foram encontradas 339 questões.
Considere, inicialmente, o valor lógico das proposições simples abaixo:
P - Todo polígono regular possui pelo menos duas diagonais.
Q - Existe um único número primo, cujo valor é par.
R - Todo número primo possui raiz quadrada pertencente ao conjunto dos irracionais.
Analisando as proposições compostas abaixo, que derivam das proposições simples acima:
I - !$ p \rightarrow \sim q !$
II- !$ \sim r \leftrightarrow \sim p !$
III -!$ r \vee q !$
IV -!$ \sim (p \wedge \sim q) !$
É correto concluir que o valor lógico das respectivas proposições I, II, II e IV respectivamente:
Provas
Ao construir a tabela verdade da proposição composta A, indicada abaixo, é correto garantir que na última coluna os valores lógicos serão:
Proposição !$ \mathbf{ A : \sim [ (q \rightarrow p) \vee ( \sim p \wedge q)]} !$
Provas
Ao visitar a cidade de Dourados, no estado de Mato Grosso do Sul, um turista deve escolher 4 destinos de visitação dentre os 10 pontos turísticos oferecidos para o passeio por uma agência do ramo. Os pontos turísticos são: Artesanato da Vila São Pedro, Catedral Imaculada Conceição, Cruzeiro e Museu da Colônia Agrícola Nacional de Dourados - CAND “Acylino Borba”, Galpão das Artes Guaicurus, Monumento ao Colono, Museu Histórico e Cultural de Dourados, Parque Antenor Martins, Parque dos Ipês, Parque Ambiental Primo Fioravante (Parque Rego D' Água) e Reserva Indígena. De quantas formas diferentes esse turista pode montar seu roteiro de visitação?
Provas
Para obter uma comunicação sigilosa durante o período de regimes autoritários, dois amigos criaram um sistema de comunicação por meio de números. Para as vogais do nosso alfabeto, indicaram os números chamados de quadrados perfeitos a partir do primeiro destes. Para as consoantes, ou seja, as demais 21 letras restantes, indicaram os primeiros 21 números primos. Assinale a alternativa que transcreve corretamente a mensagem enviada, que foi criptografada por meio da seguinte sequência numérica:
| 47 | 1 | 3 | 9 | 53 | 29 | 16 | 4 | 13 | 16 | 29 | 16 | 7 | 16 | 2 | 9 | 1 | 29 | 1 | 59 | 1 | 29 | • |
Provas
Dadas as proposições que seguem: !$ \mathbf{ ( \exists ! x)\,( x -2 = 5); q) ( \forall y) ( 2y + 7 > 0); r) ( \exists\,\,a) ( -2a^2 + 50 = 0)} !$determine corretamente os valores lógicos das negações das respectivas proposições (p, q, r).
Provas
Um recipiente de decantação de um determinado soro possui o formato de um prisma hexagonal reto, cujas bases são regulares, possuindo as medidas das arestas das bases de 8 cm; já o comprimento da aresta lateral (altura do prisma) é 12 cm. Sabendo que a cada dia são inseridos 1/12 do volume total de soro no recipiente, ao final do nono dia, qual será o volume total dentro desse recipiente?
Provas
The landscape of the Pantanal is a mosaic of ecosystems with an abundance of water. It is one of the largest perennial flood plains on the Planet and one of Brazil's richest biomes. The Pantanal harbours 656 species of birds, 325 species of fish, 159 mammals, 98 reptiles, 53 amphibians and over 3,500 species of plants. In all, there are over 4,700 species of flora and fauna in the region, including two endemic species and various threatened species, such as the Giant Anteater, Maned Wolf and Hyacinth Macaw. Despite its great ecological importance, the average Brazilian knows very little about the Pantanal.
To celebrate Pantanal Day (12 November), WWF-Brasil created some infographics to showcase the biome and emphasize its importance for Brazil and the rest of the world, and highlight the threats to the region and ways of protecting it.
Despite its importance, the Pantanal faces a number of threats that are common to the three countries where it is located. Currently, only 3.19% of the biome is covered by protected areas, a mere 2.88% of which are strictly protected areas, putting the biome at even greater risk.
These threats are the theme of a study undertaken by WWF-Brasil that monitored land cover and land use changes in the Upper Paraguay River Basin, which showed that the region has already lost approximately 50% of its original cover
(Texto Adaptado. Fonte: Disponível em:
<https://www.wwf.org.br/?50183/Infographics-showthe- importance-of-the-Pantanal-and-the-main-threatsfaced- by-the-biome>. Acesso em: 2 mar. 2022)
Considerando a frase: “It is one of the largest perennial flood plains on the Planet and one of Brazil's richest biomes”, o apóstrofe S ('s) significa:
Provas
The landscape of the Pantanal is a mosaic of ecosystems with an abundance of water. It is one of the largest perennial flood plains on the Planet and one of Brazil's richest biomes. The Pantanal harbours 656 species of birds, 325 species of fish, 159 mammals, 98 reptiles, 53 amphibians and over 3,500 species of plants. In all, there are over 4,700 species of flora and fauna in the region, including two endemic species and various threatened species, such as the Giant Anteater, Maned Wolf and Hyacinth Macaw. Despite its great ecological importance, the average Brazilian knows very little about the Pantanal.
To celebrate Pantanal Day (12 November), WWF-Brasil created some infographics to showcase the biome and emphasize its importance for Brazil and the rest of the world, and highlight the threats to the region and ways of protecting it.
Despite its importance, the Pantanal faces a number of threats that are common to the three countries where it is located. Currently, only 3.19% of the biome is covered by protected areas, a mere 2.88% of which are strictly protected areas, putting the biome at even greater risk.
These threats are the theme of a study undertaken by WWF-Brasil that monitored land cover and land use changes in the Upper Paraguay River Basin, which showed that the region has already lost approximately 50% of its original cover
(Texto Adaptado. Fonte: Disponível em:
<https://www.wwf.org.br/?50183/Infographics-showthe- importance-of-the-Pantanal-and-the-main-threatsfaced- by-the-biome>. Acesso em: 2 mar. 2022)
Assinale a alternativa que responda corretamente à pergunta: qual é o tempo verbal utilizado na seguinte frase?
“Despite its importance, the Pantanal faces a number of threats that are common to the three countries”,
Provas
The landscape of the Pantanal is a mosaic of ecosystems with an abundance of water. It is one of the largest perennial flood plains on the Planet and one of Brazil's richest biomes. The Pantanal harbours 656 species of birds, 325 species of fish, 159 mammals, 98 reptiles, 53 amphibians and over 3,500 species of plants. In all, there are over 4,700 species of flora and fauna in the region, including two endemic species and various threatened species, such as the Giant Anteater, Maned Wolf and Hyacinth Macaw. Despite its great ecological importance, the average Brazilian knows very little about the Pantanal.
To celebrate Pantanal Day (12 November), WWF-Brasil created some infographics to showcase the biome and emphasize its importance for Brazil and the rest of the world, and highlight the threats to the region and ways of protecting it.
Despite its importance, the Pantanal faces a number of threats that are common to the three countries where it is located. Currently, only 3.19% of the biome is covered by protected areas, a mere 2.88% of which are strictly protected areas, putting the biome at even greater risk.
These threats are the theme of a study undertaken by WWF-Brasil that monitored land cover and land use changes in the Upper Paraguay River Basin, which showed that the region has already lost approximately 50% of its original cover
(Texto Adaptado. Fonte: Disponível em:
<https://www.wwf.org.br/?50183/Infographics-showthe- importance-of-the-Pantanal-and-the-main-threatsfaced- by-the-biome>. Acesso em: 2 mar. 2022)
leia a frase e observe as palavras destacadas: “To celebrate Pantanal Day (12 November), WWF-Brasil created some infographics to showcase the biome and emphasize its importance for Brazil and the rest of the world, and highlight the threats to the region and ways of protecting it”. Assinale a alternativa que responda corretamente à pergunta: qual é a classe gramatical das palavras em destaque respectivamente?
Provas
The landscape of the Pantanal is a mosaic of ecosystems with an abundance of water. It is one of the largest perennial flood plains on the Planet and one of Brazil's richest biomes. The Pantanal harbours 656 species of birds, 325 species of fish, 159 mammals, 98 reptiles, 53 amphibians and over 3,500 species of plants. In all, there are over 4,700 species of flora and fauna in the region, including two endemic species and various threatened species, such as the Giant Anteater, Maned Wolf and Hyacinth Macaw. Despite its great ecological importance, the average Brazilian knows very little about the Pantanal.
To celebrate Pantanal Day (12 November), WWF-Brasil created some infographics to showcase the biome and emphasize its importance for Brazil and the rest of the world, and highlight the threats to the region and ways of protecting it.
Despite its importance, the Pantanal faces a number of threats that are common to the three countries where it is located. Currently, only 3.19% of the biome is covered by protected areas, a mere 2.88% of which are strictly protected areas, putting the biome at even greater risk.
These threats are the theme of a study undertaken by WWF-Brasil that monitored land cover and land use changes in the Upper Paraguay River Basin, which showed that the region has already lost approximately 50% of its original cover
(Texto Adaptado. Fonte: Disponível em:
<https://www.wwf.org.br/?50183/Infographics-showthe- importance-of-the-Pantanal-and-the-main-threatsfaced- by-the-biome>. Acesso em: 2 mar. 2022)
Leia o Texto I e assinale a alternativa que contenha 6 (seis) palavras cognatas.
Provas
Caderno Container