
Mathematics Worksheet - Sets and Numbers
Authored by reforço Borges
Information Technology (IT)
10th Grade
Used 3+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(UFPI) Considerando os conjuntos A, B e C na figura ao lado, a região hachurada representa:
B – (A – C)
B ∩ (A – C)
B ∪ (A ∩ C)
B ∩ (A ∪ C)
B – (A ∪ C)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dado o conjunto A e B, temos que A ∪ B = {1, 2, 4, 6, 8, 10, 12, 14, 16}, que A – B = {1, 2, 10}, e que A ∩ B = {6, 8, 16}, assim, o conjunto B é igual a:
B = {1, 2, 6, 8, 10, 16}
B = {1, 2, 10, 16}
B = {4, 6, 8, 12, 14, 16}
B = {12, 4, 8, 10, 12, 14}
B = {6, 8, 12, 14, 16}
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A respeito dos Conjuntos A = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; B = {2, 4, 6, 8, 10}; C = {1, 3, 5, 7, 9}; D = ∅ e E = {8}, é correto afirmar que:
A – B = C
B ∩ C é unitário
B – C = ∅
E ⊂ A
D é unitário
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sobre os conjuntos numéricos, é correto dizer que:
Z+ ⊄ R
N ⊂ Q
Q ⊂ I
Z ⊂ N
N ⊄ Z
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dado o conjunto A = {3, 4, 5, 6, 7, 8, 9, 10}, B = {9, 10, 11, 12} e C = {5, 7, 9, 11, 13}, os elementos do conjunto (A∩B)∪C são:
{5, 7, 9, 11, 13}
{5, 7, 9, 10}
{3, 4, 5, 7, 11, 13}
{5, 7, 9, 10, 11, 13}
{3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Um paciente é diagnosticado com uma determinada doença se, e somente se, apresentar os sintomas A e B. Entre 324 pessoas examinadas, verificou-se que: - 157 pessoas apresentaram o sintoma A; - 201 apresentaram o sintoma B; - 49 não apresentaram nenhum desses dois sintomas; O número de pessoas examinadas que efetivamente contraíram a doença foi igual a:
34
35
36
37
38
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Uma pesquisa feita com 200 consumidores dos doces tipos A, B e C mostram que 20 consumiam os três doces, 30 consumiam A e B, 50 consumiam B e C, 60 consumiam A e C, 120 consumiam A e 75 consumiam doce do tipo B. Com base nessas informações, pergunta-se: Quantos consumiam o doce C?
100
45
165
35
125
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