11.03. 8.raz Q1 Matematika tut

Quiz
•
Mathematics
•
8th Grade
•
Hard
Amer Bralic
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(0,5)
(∞,5)
(5,−∞)
Answer explanation
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dodajemo znak jednakosti
Ništa se ne dešava
Mijenja se u ''>''
Mijenja se u ''}''
Answer explanation
Pravilo kaže da pri množenju ili dijeljenju negativnim brojem znak nejednakosti mijenja smjer.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Podijelimo sve sa 2
Oduzimamo x na obje strane
Okrećemo smjer znaka
Napišemo x=
Answer explanation
Da bismo grupisali x na jednoj strani, oduzimamo x sa obje strane: 3x - x + 4 ≥ x - x - 2 i dobijamo 2x+4 ≥ -2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Answer explanation
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(−2,4)
(−2,4]
{−2,4]
|−2,4]
Answer explanation
Rješenje su vrijednosti koje zadovoljavaju obje nejednakosti, dakle (-2, 4] jer -2 nije uključeno. Mala zagrada ''('' ukazuje da -2 nije dio rješenja a velika zagrada '']'' ukazuje da je broj 4 dio rješenja
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