Quiz about Ulangan Harian Kelas 9

Question 1

Hasil dari $$3^2 imes3^5\div3^6=...$$

Accepted Answer

3

Answer

9

Answer

27

Answer

81

Question 2

Nilai dari $$2^{-3}$$ adalah ...

Accepted Answer

$$\frac{1}{8}$$

Answer

$$-\frac{1}{8}$$

Answer

$$-\frac{1}{4}$$

Answer

$$\frac{1}{4}$$

Question 3

Hasil dari $$2^2 imes2^{-5}$$ adalah ...

Accepted Answer

$$\frac{1}{8}$$

Answer

8

Answer

$$\frac{1}{64}$$

Answer

$$\frac{1}{512}$$

Question 4

Hasil dari $$5^{-6}\div5^{-4}$$ adalah ...

Accepted Answer

$$\frac{1}{25}$$

Answer

$$-\frac{1}{10}$$

Answer

$$-\frac{1}{25}$$

Answer

$$\frac{1}{10}$$

Question 5

Bentuk sederhana dari $$\left(6^2\right)^6$$ adalah ...

Accepted Answer

$$6^{12}$$

Answer

$$6^4$$

Answer

$$6^8$$

Answer

$$6^{36}$$

Question 6

Hasil dari $$\sqrt[]{8} imes\sqrt[]{10}$$ adalah ...

Accepted Answer

$$4\sqrt[]{5}$$

Answer

20

Answer

10

Answer

$$4\sqrt[]{10}$$

Question 7

Bentuk sederhana dari $$\frac{2^7 imes6^7}{4^7}$$ adalah ...

Accepted Answer

$$3^7$$

Answer

$$2^7$$

Answer

$$4^7$$

Answer

$$6^7$$

Question 8

Perhatikan pernyataan-pernyataan berikut:

(i). $$\left(a^5\right)^3=a^{15}$$

(ii). $$\left(a^4b\right)^2=a^8b^2$$

(iii). $$\left(a^5\right)^3=a^8$$

(iv). $$\left(a^3b^2\right)^3=a^6b^5$$

Pernyataan yang benar adalah ...

Accepted Answer

i dan ii

Answer

i dan iv

Answer

ii dan iii

Answer

iii dan iv

Question 9

$$\frac{3^4}{3^3}=...$$

Accepted Answer

$$3$$

Answer

$$3^3$$

Answer

$$3^2$$

Answer

$$3^0$$

Question 10

Bentuk yang sesuai dengan $$2^2 imes2^3$$ adalah ...

Accepted Answer

$$\left(2 imes2 ight) imes\left(2 imes2 imes2 ight)$$

Answer

$$2 imes2 imes2 imes2$$

Answer

$$\left(2 imes2 ight)+\left(2 imes2 imes2 ight)$$

Answer

$$\left(2+2\right)+\left(2+2+2\right)$$

Question 11

Yang termasuk bentuk akar, kecuali ...

Accepted Answer

$$\sqrt[]{49}$$

Answer

$$2\sqrt[]{8}$$

Answer

$$2\sqrt[]{12}$$

Answer

$$4\sqrt[]{7}$$

Question 12

Bentuk umum persamaan kuadrat adalah ...

Accepted Answer

$$ax^2+bx+c=0$$

Answer

$$ax+by=0$$

Answer

$$ax^2+bx-c=0$$

Answer

$$-ax^2+bx+c=0$$

Question 13

Diketahui persamaan kuadrat $$-x^2+3x-4=0$$ . Nilai a, b, dan c berturut-turut adalah ...

Accepted Answer

-1, 3, -4

Answer

1, 3, 4

Answer

1, 3, -4

Answer

-1, -3, 4

Question 14

Bentuk pemfaktoran dari $$x^2-5x+4=0$$ adalah ...

Accepted Answer

$$\left(x-4\right)\left(x-1\right)=0$$

Answer

$$\left(x+4\right)\left(x+1\right)=0$$

Answer

$$\left(x+4\right)\left(x-1\right)=0$$

Answer

$$\left(x-4\right)\left(x+1\right)=0$$

Question 15

Nilai diskriminan dari persamaan kuadrat $$3x^2+x+2=0$$ adalah ...

Accepted Answer

-23

Answer

23

Answer

6

Answer

-6

Question 16

Perhatikan persamaan-persamaan berikut!

(i). $$2x^2-5=0$$

(ii). $$2x^2+3x^3=0$$

(iii). $$3x+6=0$$

(iv). $$3x^2+5x+9=0$$

Accepted Answer

i dan iv

Answer

ii dan iv

Answer

i dan ii

Answer

ii dan iii

Question 17

Diketahui persamaan kuadrat $$2x^2+5x-12=0$$ . Nilai dari $$a+b+c$$ adalah ...

Accepted Answer

-5

Answer

-19

Answer

5

Answer

19

Question 18

Nilai diskriminan dari persamaan kuadrat $$x^2+6x+9=0$$ adalah ...

Accepted Answer

0

Answer

1

Answer

6

Answer

9

Question 19

Akar-akar dari persamaan kuadrat $$x^2+x-20=0$$

Accepted Answer

-5 dan 4

Answer

5 dan 4

Answer

5 dan -4

Answer

-5 dan -4

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