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DISEQUAZIONI DI SECONDO GRADO: verifica

Authored by marco Pompei

Mathematics

8th - 9th Grade

Used 181+ times

DISEQUAZIONI DI SECONDO GRADO: verifica
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20 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

La disequazione x2>0 è verificata per:

x< 0
x> 0
0<x<1
∀ x ∈R -(0)

2.

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

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

x2 - 16 < 0                            

-4<x<4
x<±4
x<4
x<-4∪x>4

4.

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

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

3x - x> 0

x<0 U x>3
x<-3 U x>0
-3<x<0
0<x<3

6.

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

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Quale dei seguenti numeri non soddisfa la disequazione -3x²+8x+35>0?

4
-3
-1
0

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