
9º ano - Teste
Authored by Rafael Souza
Mathematics
9th Grade
Used 3+ times

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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
1. Um smartphone está com 15% de desconto. Por qual número decimal devemos multiplicar o valor antigo para chegar no novo valor com o desconto?
0,85
1,15
1,015
0,15
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
2. Um quilograma de banana estava custando R$8,00 no início de janeiro. Para fevereiro, o preço sofreu uma alteração, sendo o preço do quilograma multiplicado por 1,03. Isso significa que
o preço aumentou 3%.
O preço diminuiu 3%.
O preço aumentou 8%.
O preço continuou o mesmo.
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
a = 3, b = 0, c = -2
a = 3, b = 1, c = 2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4. Qual das opções abaixo representa a equação do 2º grau que possui coeficientes iguais a
a=1 ; b=-2 e c=4.
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
0
9
12
16
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Sim.
Não.
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
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