9º ano - AVAL II
Quiz
•
Mathematics
•
9th Grade
•
Hard
Used 3+ times
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30 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Determine os coeficientes (a, b e c ) da equação
X2 + X + 2= 0
A = 1 B= 1 C= 2
A = -1 B= 2 C= 1
A = 2 B= 1 C= 1
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A partir dos coeficiente A, B e C, determine a equação do 2°grau, em que: A= 2, B= 3, C = 0 .
2X2 + 3X +9 =0
2X2 + 3X =0
X2 + 3 =0
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A partir dos coeficiente A, B e C, determine a equação do 2°grau, em que: A= 1, B=3, C = 5 .
X2 + 3X + 5 =0
X2 + 5X +3 =0
3X2 + 5X =0
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Para a equação ser do 2° grau é necessário:
Ter o coeficiente a=2
Ter o maior grau de x = 2
Ter 2 termos
O resultado ser 2
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quais os coeficientes da equação: x + 3x² = 5
a = 1, b = 3, c= 5
a = 1, b = 3, c = - 5
a = 3 , b = 1 , c = 5
a = 3, b = 1, c = -5
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Os valores dos coeficientes a, b e c são respectivamente:
1;-3;2
0;3;2
1;3;2
-1;-3;-2
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Complete corretamente a frase:
Quando um termo da equação mudar de lado do sinal de igual, devemos
inverter a operação.
sempre multiplicar a operação.
sempre dividir a operação.
subtrair a operação.
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