REVISÃO - EQ. 2°GRAU + PROBABILIDADE (VA)

REVISÃO - EQ. 2°GRAU + PROBABILIDADE (VA)

10th Grade

10 Qs

quiz-placeholder

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REVISÃO - EQ. 2°GRAU + PROBABILIDADE (VA)

REVISÃO - EQ. 2°GRAU + PROBABILIDADE (VA)

Assessment

Quiz

Education

10th Grade

Hard

Created by

Felipe Dias

Used 51+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Resolva a equação do 2°grau:

2x² - 50 = 0

V={-2, +2}

V={-10, +10}

V={-2, +2}

  • V={-5, +5}

Answer explanation

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Resolva a equação 6x² - 24x = 0:

V={0, 4}

V={-4, +4}

V={0, 6}

V={0, 2}

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Resolva a equação:

2x² - 12x = x² + 10x

V={-12, 0}

V={10, 12}

V={0, 10}

V={0, 22}

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Resolva a equação 2x² - 7x + 3 = 0:

V={-2, 5}

V={1/2, 3}

V={1/3, 3}

V={0, 1}

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Rwsolva a equação 4x² - 49 = 0:

V={3,5; -3,5}

V={7; -7}

V={4; -4}

V={0; 49}

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Para a equação x² - 10x + 21 = 0, indique os coeficientes:

a = -1 b = 10 c = 21

a = 1 b = -10 c = 21

a = x² b = 10 c = 21

a = 1 b = -10 c = 0

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Pensando de números de 1 a 100. Qual a probabilidade escolher um número com dois algarismos iguais?

9/100

10/100

9/10

99/100

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