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Bem-aventurados os mansos, porque eles herdarão a terra; Bem-aventurados os que têm fome e sede de justiça, porque eles serão fartos; Bem-aventurados os misericordiosos, porque eles alcançarão misericórdia; Bem-aventurados os limpos de coração, porque eles verão a Deus; Bem-aventurados os pacificadores, porque eles serão chamados filhos de Deus; Bem-aventurados os que sofrem perseguição por causa da justiça, porque deles é o reino dos céus; Bem-aventurados sois vós, quando vos injuriarem e perseguirem e, mentindo, disserem todo o mal contra vós por minha causa.(Mt.5)

sexta-feira, 9 de março de 2012

MATEMÁTICA 10

Questão cód. 3935
1)
(CEFET) Para a Gincana Cultural organizada pelos Professores do Cefet, foi escolhido os grupos de alunos, da seguinte forma:
Para as disciplinas de | Conhecimentos Gerais | Física | Inglês
Homens____________ | _______ 92 __________ | _ 35 _ | _ 47 _
Mulheres___________ | ______ 1001 _________ | _ 33 _ | _ 52 _
Escolhendo-se um aluno aleatoriamente, qual a probabilidade do aluno sorteado ser um homem, sobendo-se que a disciplina sorteada foi Inglês?
a)
1/47
b)
47/360
c)
47/99
d)47/52
e)
1/360
  
Questão cód. 2348
2)
(EMPASIAL) Qual o menor valor de " x " que satisfaz a equação: 2 x² - 3 x + 1 = 0 ?
a)
2
b)
zero
c)
-1
d)0,5
e)
  
Questão cód. 2665
3)
(NCE/UFRJ) Para providenciar troco para seus fregueses, um comerciante foi ao banco e trocou dez reais, sendo R$ 8,70 em moedas de dez centavos e R$ 1,30 em moedas de um centavo. O comerciante levou de volta para sua loja o seguinte total de moedas:
a)
87
b)
130
c)
187
d)217
e)
  
Questão cód. 1060
4)
(ESAF) Ana contraiu uma dívida, comprometendo-se a o saldá-la em dois pagamentos. Em 1 de março de 2001, deveria ser efetuado o primeiro pagamento no valor de R$ 3.500,00. O segundo pagamento, no valor de R$ 4.500,00, deveria ser efetuado 6 o meses após o primeiro, ou seja, em 1 de setembro de 2001. Contudo, no vencimento da primeira parcela, não dispondo de recursos, Ana propôs uma repactuação da dívida, com um novo esquema de pagamentos. O esquema apresentado foi o de efetuar um pagamento de R$ 5.000,00 o em 1º de junho de 2001, e pagar o restante em 1 de dezembro do mesmo ano. Se a dívida foi contratada a uma taxa de juros compostos igual a 5% o ao mês, então o valor a ser pago em 1 de dezembro deveria ser igual a:
a)
R$ 3.200,00
b)
R$ 3.452,20
c)
R$ 3.938,48
d)R$ 5.432,00
e)
  
Questão cód. 1886
5)
Uma dívida, no valor de R$ 9 159,40, vai ser paga em 5 prestações mensais iguais e consecutivas, a primeira delas vencendo ao completar 3 meses da data do contrato. Os juros são compostos, à taxa de 3% ao mês. O valor de cada uma das prestações deve ser
a)
R$ 1 793,77
b)
R$ 2 121,80
c)
R$ 2 185,45
d)R$ 2 251,01
e)
  
Questão cód. 3233
6)
A função f (x) = x2 - 2x + 1 tem mínimo no ponto em que x vale:
a)
0
b)
1
c)
2
d)3
e)
  
Questão cód. 3926
7)
(CEFET) Para a Gincana Cultural organizada pelos Professores do Cefet, foi escolhido os grupos de alunos, da seguinte forma:
Para as disciplinas de | Conhecimentos Gerais | Física | Inglês
Homens_____________|________ 92 __________|__ 35 __|__ 47 __
Mulheres___________|_______ 1001 _________|__ 33 __|__ 52 __
Escolhendo-se um aluno aleatoriamente, qual a probabilidade do aluno sorteado ser um homem, sobendo-se que a disciplina sorteada foi Inglês?
a)
1/47
b)
47/360
c)
47/99
d)47/52
e)
1/360
  
Questão cód. 1732
8)
Em uma loja especializada em material de informática, 2 caixas de disquetes, 1 cartucho de toner para impressora e 2 resmas de papel A4 custam R$ 112,00; 1 caixa de disquetes, 2 cartuchos de toner e 8 resmas do mesmo papel custam R$ 224,00; 5 caixas de disquetes e 1 cartucho de toner custam R$ 124,00. Nessa loja, o preço de 1 cartucho de toner para impressora é igual a
a)
R$ 80,00.
b)
R$ 81,50.
c)
R$ 84,00.
d)R$ 85,50.
e)
  
Questão cód. 2416
9)
(ACPM/RJ) De uma barra de ferro com 6 m de comprimento retira-se um pedaço com 1,5 m; e o que sobra divide-se em dois pedaços iguais medindo:
a)
2,95 m
b)
2,85 m
c)
2,75 m
d)2,25 m
e)
  
Questão cód. 4257
10)
Depois de uma reunião de negócios, três empresários saíram para comemorar com petiscos e cervejas. O empresário A. consumiu 3 latas de cerveja, B. consumiu 4 latas e C. consumiu 5 latas. Todos consumiram variados tipos de petiscos. Quando chegou a conta, um tanto ″salgada″ de R$ 94,00 decidiram que a parte de cada um seria inversamente proporcional à quantidade de latas de cerveja consumida. Então a parte que coube ao empresário A. foi:
a)
R$ 36,00
b)
R$ 30,00
c)
R$ 24,00
d)R$ 54,00
e)
R$ 40,00
  
C,D,D,C,B,A,C,C,D,E
 

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