TEST SCIENTIFICI DEL 21 MARZO

TEST SCIENTIFICI DEL 21 MARZO

University

23 Qs

quiz-placeholder

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TEST SCIENTIFICI DEL 21 MARZO

TEST SCIENTIFICI DEL 21 MARZO

Assessment

Quiz

Mathematics

University

Hard

Created by

MARCO GIAMPETRUZZI

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23 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Risolvere la seguente disequazione irrazionale:

√(x2+ 2x + 2) ≤ 2/5– 3/5x

A) –23/8 ≤ x ≤ –1

B) x ≤ –23/8

C)x ≤ 1/3

D) x ≥ –1/3

E) x ≥ –23/8

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Domenica sera Cecilia ha letto un quarto delle pagine di un libro. Lunedì sera ne ha lette due quinti e martedì un sesto. mercoledì ha letto le ultime 55 pagine. Quante pagine ha il libro?

A) 360

B) 330

C) 300

D) 3.300

E) 630

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Il numero √(40.000)3 equivale a:

A) 40.000

A) 8 · 106

C) 6,4 · 109

D) 8 · 103

E) 2003/2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Risolvendo il sistema di equazioni mostrato in figura, quale valore numerico si assegna all’incognita b?

A) 4

B) 6

C) 8

D) 10

E) 9

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Quanti numeri di tre cifre si possono formare con 2, 3, 4, 5, 6?

A) 20

B) 250

C) 375

D) 125

E) 120

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dati i punti A (–1; –1), B (1; 3) e C (3; k), calcolare il valore di k tale che i tre punti risultino allineati.

A) 6

B) 5

C) -7

D) 4

E) 7

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Quale delle seguenti parabole ha per asse la retta di equazione 2x = –3?

A) y = –x2+ 5x + 4

B) y = –x2– 3x + 4

C) y = –x2– 4x – 4

D) y = –x2+ 5x – 4

E) y = –x2+ 6

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