Język matematyki

Język matematyki

1st - 5th Grade

12 Qs

quiz-placeholder

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Język matematyki

Język matematyki

Assessment

Quiz

Mathematics

1st - 5th Grade

Hard

Created by

Magdalena Sibierska

Used 306+ times

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Suma zbiorów A = {1,2,3,4,5} i B= {1,3,7,8}, to zbiór X=
X={1,3}
X={1,2,3,4,5,7,8}
X={pusty}
X={7,8}

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jeśli A=⟨−8,12⟩ i B=(0,20), to różnica A∖B jest przedziałem:

(−8,12)

⟨−8,0⟩

(−8,12⟩

⟨−8,0)

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

( -2; 3) ∩ 〈 1; 5〉

〈1; 3)

(1 ; 3 〉

( -2; 5 )

〈 -2; 5 〉

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Wyrażenie ( x + 2) ( y - 3 ) po wymnożeniu ma postać :

2y -6 +2xy +3x

xy - 3x + 2y -6

2x + 6 + 3y + xy

xy -2y + 3x +6

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mnożąc jednomian przez sumę algebraiczną

3x(x-7) otrzymasz:

3x2 - 21x

3x2 - 7

3x2 - 3x

3x2 + 21x

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Wyrażenie  (2xy)2\left(2x-y\right)^2  jest równe:

 4x4xy+y24x-4xy+y^2  

 4x2+y24x^2+y^2  

 4x24xy+y24x^2-4xy+y^2  

 4x2y24x^2-y^2  

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Wyłączając przed nawias czynnik liczbowy oraz wszystkie możliwe zmienne w jak największych potęgach z  21a^4b^4-27a^2b^2+6a^2b^5

 3a2b2(7a2b29ab+6ab3)3a^2b^2\left(7a^2b^2−9ab+6ab^3\right)  

 3a2b2(7ab9+2ab2)3a^2b^2\left(7a^{ }b^{ }−9+2ab^2\right)  

 3a2b2(7a2b29+6b2)3a^2b^2\left(7a^2b^2−9+6b^2\right)  

 3a2b2(7a2b29+2b3)3a^2b^2\left(7a^2b^2−9+2b^3\right)  

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