SESI Revisão Avaliação Final UN I

SESI Revisão Avaliação Final UN I

9th Grade

15 Qs

quiz-placeholder

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SESI Revisão Avaliação Final UN I

SESI Revisão Avaliação Final UN I

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

Created by

Olga Oliveira

Used 6+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Quais são os coeficientes de 8x²7x+35=08x²-7x+35=0  ?

a = 35
b = 8
c = -7

a = -7
b = -8
c = 35

a = 8
b = -7
c = 35

a = 8
b = 35
c = -7

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Quais são os coeficientes de y²327=0-\frac{y²}{3}-27=0  ?

a = -1/3
b = 0
c = -27

a = 0
b = -1/3
c = 27

a = -1/3
b = 0
c = 0

a = -27
b = -1/3
c = 0

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Quais são os coeficientes de (x+4).(x5)=5x16(x+4).(x–5)=5x-16  ?

a = - 3
b = 0
c = 9

a = 1
b = 2
c = 36

a = -2
b = 5
c = 8

a = 1
b = - 6
c = - 4

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

O quadrado de um número subtraído desse mesmo número menos 42 é igual a zero. Qual equação representa essa frase?

5x+8=05x+8=0

x²+x+42=0x²+x+42=0

x²x42=0x²-x-42=0

x²=42x²=42

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Qual a soma dos coeficientes da equação que representa a soma das áreas das figuras?

7

8

9

10

6.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Verifique se o número 5 é raiz de cada equação a seguir. Marque as VERDADEIRAS.

x²+6x=0x²+6x=0

2x²10x=02x²-10x=0

3x²75=03x²-75=0

x²+7x+10=0x²+7x+10=0

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Verifique, entre os números 2, 25, 9 e 10, quais são raízes da equação x²11x+18=0x²-11x+18=0  


2 e 9

25 e 9

2 e 10

Nenhum

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