
9º Ano - Revisão
Authored by Franzé Alencar
Mathematics
8th Grade
27 Questions
Used 10+ times

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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Qual a forma (modelo) correta de uma equação do 2º grau?
ax² + bx + c = 0
ax + bx + c = 0
ax³ + bx² + c = 0
a²x + bx + c = 0
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
O delta (discriminante) de uma equação do 2º grau e dada pela seguinte fórmula:
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Numa equação do 2º grau da forma ax² + bx + c = 0, quando o b ou c forem 0 (zero), a equação é chamada de:
completa
incompleta
inacabada
imperfeita
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Encontre dois números cuja soma é 7 e cujo produto é 10.
2 e 5
3 e 4
1 e 6
0 e 7
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Encontre dois números cuja soma é 11 e cujo produto é 30.
5 e 6
3 e 8
4 e 7
2 e 9
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Encontre dois números cuja soma é 15 e cujo produto é 56.
7 e 8
6 e 9
5 e 10
4 e 11
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Encontre dois números cuja soma é 20 e cujo produto é 36.
2 e 18
3 e 17
4 e 16
5 e 15
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