
Quiz - Equações do 2o grau
Authored by Khrystyna Verbyana
Mathematics
9th Grade
Used 3+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Escreve uma expressão do tipo a(x-b)^2 com a, b, c Є R
2x^2+12x+10
2(x^26x+5)
2(x+3)^2-8
2(x+3)^2
x^26x+5
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Na figura está representado um triângulo retângulo ABC. Sabe-se que AC=6 e AB=8. Determine o valor de x para os quais se tem BC=x-3.
-7
36
13
Nenhuma das respostas
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Os retângulos representados na figura tem igual área. Determina as dimensões do retângulo verde.
4 e 6
5 e 9
10 e 12
7 e 9
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Determine discriminante da seguinte equação: -x^2+2x-5=0
16
20
-16
24
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como é que se chama seguinte fórmula
Teorema de Pitágoras
Determinante
Formula resolvent
Nenhuma resposta
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
12
6
10
8
7.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
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