
Matrizes
Quiz
•
Mathematics
•
2nd Grade
•
Practice Problem
•
Hard
ELIANE DEVENS
Used 2+ times
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10 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
A matriz completa associada ao sistema linear
{ 7x – 2y = 1
{ 4x + 2y = 10 é
(7 -2 1)
(4 2 10)
(10 4 2)
(7 -2 10)
(2 4 1)
(7 -2 10)
(7 -2 - 1)
(4 2 10)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Um sistema de equações de primeiro grau com duas incógnitas pode representar geometricamente:
uma parábola
uma circunferência
apenas dois pontos
um par de retas
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A soma de dois números é 21 e sua diferença é 51. Quais são esses números?
{ x + y = 21
{ x - y = 51
A soma de dois números é 21 e sua diferença é 51. Quais são esses números?
{ x + y = 21
{ x - y = 51
36 e 15
13 e 36
33 e 12
36 e -15
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quais tipos de retas podem ser representadas pelo sistema de equações lineares?
{ 4x + 2y = 4
{ 2x + y = 5
paralelas
concorrentes
coincidentes
perpendiculares
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Marcos fez uma retirada em um caixa eletrônico. Ao todo retirou 10 cédulas, sendo que o caixa só fornecia cédulas de 20 reais e de 50 reais. Além disso, a quantia total retirada foi de 200 reais. Qual a quantidade de cédulas de cada valor?
10 cédulas de 20 reais
4 cédulas de 50 reais
5 cédulas de 20 reais e 2 cédulas de 50 reais
8 cédulas de 20 reais e 1 cédula de 50 reais
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quando a reta é concorrente o sistema a seguir pode ser classificado como;
S.P.D.
S.P.C.
S.P.I.
S.I.
S.D.
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