
Retomada sobre sequencia e regularidade
Authored by Rosangela Brito
Mathematics
9th Grade

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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1)Observe a sequência a seguir:
5, 10, 15, 20, 25, ...
Qual das expressões abaixo representa o n-ésimo termo dessa sequência?
a) 2n
b) 3n + 2
c) 5n
d) 10n
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2)Qual expressão representa o termo geral (aₙ) da sequência?
a) aₙ = 3n
b) aₙ = 3n + 1
c) aₙ = 3n + 2
d) aₙ = 3n + 4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3)Uma sequência é formada por:
1, 4, 9, 16, 25, ...
Essa sequência pode ser representada pela expressão:
a) n + 1
b) n²
c) 2n
d) n × 2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4)Em uma escola, as carteiras são organizadas em fileiras. A primeira fileira tem 4 carteiras, a segunda tem 6, a terceira tem 8, e assim por diante.
Qual expressão representa o número de carteiras na n-ésima fileira?
a) 2n + 2
b) 2n + 4
c) n + 2
d) 4n
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5)Observe o padrão abaixo formado por quadradinhos:
a) aₙ = 2n - 1
b) aₙ = n + 2
c) aₙ = 2n + 1
d) aₙ = n²
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6)Em uma festa, as mesas são organizadas para 4 pessoas. A primeira mesa comporta 4 pessoas, a segunda mesa comporta 8, a terceira comporta 12, e assim por diante.
Qual expressão representa o total de pessoas acomodadas em n mesas?
a) aₙ = 4n
b) aₙ = n + 4
c) aₙ = 2n + 2
d) aₙ = n²
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