disequazioni e intervalli

disequazioni e intervalli

4th Grade

13 Qs

quiz-placeholder

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disequazioni e intervalli

disequazioni e intervalli

Assessment

Quiz

Mathematics

4th Grade

Hard

Created by

Ilaria Evangelisti

Used 19+ times

FREE Resource

13 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Qual è l'intervallo risolutivo per la seguente disequazione: x2-4x-5>0 ?

x<-1 or x>5

x<-5 or x>1

-1<x<5

-5<x<1

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

x2 - 16 < 0                            
-4<x<4
x<±4
x<4
x<-4∪x>4

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

- 10x2 + 5x < 0

0<x<1/2

x<1/2

x<0 ∪ x>1/2

-1/2<x<0

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Quale delle equazioni seguenti ha come soluzione x<-4 ∪ x>6?
x²+2x-24<0
x²+2x-24>0
-x²+2x+24<0
-x²+2x-24>0

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Bisogna risolvere 20-x-5>0. In quale passo c'è un errore?
passo 1: -x>-15
passo 2: x>15
passo 1
passo 2

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Inserisci il simbolo opportuno al posto del ₻ :

x2-9....₻0 ↔x≤-3∪x≥3

<

>

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Inserisci il simbolo opportuno al posto del ₻ :

x2-4...₻0 ↔-2<x<2

<

>

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