
Revisão de Matemática - 3º trimestre
Mathematics
9th Grade
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18 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Ao lançar um dado e uma moeda, qual é a probabilidade de sair número par no dado e cara na moeda?
1/2
1/3
1/6
1/4
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Em uma urna há 3 bolas vermelhas e 2 azuis. Retiram-se duas bolas sem reposição. Qual a probabilidade de ambas serem vermelhas?
3/10
3/5
3/8
3/12
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Em um triângulo retângulo, os catetos medem 6 cm e 8 cm. O valor da hipotenusa é:
10 cm
12 cm
9 cm
11 cm
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Uma escada de 5 m encostada em uma parede está a 3 m de distância da base da parede. Qual é a altura que ela alcança na parede?
3,5 m
4 m
4,2 m
4,5 m
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Um produto custava R$ 250,00 e recebeu um desconto de 20%. Qual é o novo preço?
R$ 225,00
R$ 200,00
R$ 210,00
R$ 180,00
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Um salário de R$ 2.000,00 foi reajustado em 15%. Qual é o novo salário?
R$ 2.100,00
R$ 2.150,00
R$ 2.200,00
R$ 2.300,00
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Um cilindro tem raio de 4 cm e altura de 10 cm. Use π = 3,14. O volume é:
502,4 cm³
502,4 dm³
502,4 m³
1.256 cm³
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