Quiz about G7- Unit1

Question 1

Choose the correct answer :

The multiplicative inverse of the number $$\left(\frac{2}{5}\right)^0$$ =

Accepted Answer

1

Answer

$$\frac{5}{2}$$

Answer

$$-\frac{2}{5}$$

Answer

0

Question 2

Choose the correct answer :

The multiplicative inverse of the number $$\left(-1\right)^3$$ =

Accepted Answer

$$\left(-1\right)^3$$

Answer

$$\left(-1\right)^2$$

Answer

$$1^3$$

Answer

$$1^2$$

Question 3

If $$x=y$$ , then $$\left(\frac{3}{5}\right)_{ }^{\left(x-y\right)}$$ =

Accepted Answer

1

Answer

$$\frac{3}{5}$$

Answer

$$\frac{5}{3}$$

Answer

0

Question 4

If $$y^{22\ }\ +\ y^{23}\ =\ 0$$ , then $$y$$ = ?

Accepted Answer

-1

Answer

1

Answer

-2

Answer

2

Question 5

If $$x=y$$ , then $$\left(\frac{3}{5}\right)_{ }^{\left(x-y\right)}$$ =

Accepted Answer

1

Answer

$$\frac{3}{5}$$

Answer

$$\frac{5}{3}$$

Answer

0

Question 6

Choose the correct answer:

$$5^x+5^x+5^x+5^x+5^x=?$$

Accepted Answer

$$5^{\left(x+1\right)}$$

Answer

25

Answer

$$25^x$$

Answer

$$5^{5x}$$

Question 7

Choose the correct answer:

$$4^x+4^x+4^x+4^x=?$$

Accepted Answer

$$4^{\left(x+1\right)}$$

Answer

$$4^{\left(x+4\right)}$$

Answer

$$4^{4x}$$

Answer

$$4x^4$$

Question 8

Choose the correct answer:

The third of the number 3¹⁵_=?

Accepted Answer

$$3^{14}$$

Answer

$$3^5$$

Answer

$$3^{12}$$

Answer

$$1^{15}$$

Question 9

Choose the correct answer:

$$If\ a^{-1}=\frac{2}{3},\ then\ a=\ ?$$

Accepted Answer

$$\frac{3}{2}$$

Answer

$$-\frac{2}{3}$$

Answer

$$-\frac{3}{2}$$

Answer

1

Question 10

Choose the correct answer:

$$If\ a=7^x,\ and\ b=7^{-x},\ then\ a imes b=\ ?$$

Accepted Answer

1

Answer

$$7^{2x}$$

Answer

$$49^{2x}$$

Answer

10

Question 11

Choose the correct answer:

$$\left(\frac{m^2}{n^{-3}}\right)^{-1}\left(\frac{3m^{-2}}{n^{-2}}\right)^{-2}=\ ?$$

Accepted Answer

$$\frac{m^2}{9n^7}$$

Answer

$$\frac{9m^2}{n^7}$$

Answer

$$\frac{m^2}{9n}$$

Answer

$$\frac{9m^6}{n}$$

Question 12

Choose the correct answer:

$$If\ a^x=2,\ and\ a^{-y}=3,\ then\ a^{\left(x-y\right)}=\ ?$$

Accepted Answer

6

Answer

1

Answer

-1

Answer

$$\frac{2}{3}$$

Question 13

Choose the correct answer:

$$If\ xy^{-1}=\frac{1}{2},\ then\ \frac{x}{y}=\ ?$$

Accepted Answer

$$\frac{1}{2}$$

Answer

$$-\frac{1}{2}$$

Answer

1

Answer

2

Question 14

Choose the correct answer:

$$3^{-1}+3^{-1}+3^{-1}=\ ?$$

Accepted Answer

1

Answer

$$3^{-3}$$

Answer

$$3^3$$

Answer

$$9^{-3}$$

Question 15

Choose the correct answer:

$$The\ multiplicative\ inverse\ of\ 5^{-1\ }is\ .....$$

Accepted Answer

5

Answer

$$\frac{1}{5}$$

Answer

-5

Answer

$$-\frac{1}{5}$$

Question 16

Choose the correct answer:

$$If\ xy^{-1}=\frac{1}{2},\ then\ \frac{y}{x}=\ ?$$

Accepted Answer

2

Answer

$$\frac{1}{2}$$

Answer

$$-\frac{1}{2}$$

Answer

1

Question 17

Choose the correct answer:

$$\sqrt[]{1\ \frac{9}{16}}$$

Accepted Answer

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

Answer

$$1\ \frac{3}{4}$$

Answer

$$-1\ \frac{3}{4}$$

Answer

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

Question 18

Choose the correct answer:

$$\sqrt[]{\sqrt[]{81}}$$

Accepted Answer

3

Answer

81

Answer

27

Answer

9

Question 19

Choose the correct answer:

$$\sqrt[]{2^2+\sqrt[]{25}}$$

Accepted Answer

3

Answer

-3

Answer

9

Answer

-9

Question 20

Choose the correct answer:

$$if\ \frac{x}{2}=\frac{8}{x},\ then\ x=.....$$

Accepted Answer

$$\pm4$$

Answer

4

Answer

-4

Answer

16

Question 21

Choose the correct answer:

$$if\ x=\sqrt[]{\frac{1}{4}},\ then\ x^3=.....$$

Accepted Answer

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

Answer

$$\frac{3}{8}$$

Answer

$$\frac{1}{16}$$

Answer

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

Question 22

Choose the correct answer:

$$\sqrt[]{\left(a+b\right)^3\left(a+b\right)}$$

Accepted Answer

$$\left(a+b\right)^2$$

Answer

$$a^4+b^4$$

Answer

$$-\left(a+b\right)^2$$

Answer

$$\pm\left(a+b\right)^2$$

Question 23

Choose the correct answer:

$$the\ side\ length\ of\ the\ square\ whose\ area\ is\ 16x^2\ cm^2.\ equals\ ....cm.$$

Accepted Answer

$$4x$$

Answer

$$8x$$

Answer

$$2x$$

Answer

$$8x^2$$

Question 24

Choose the correct answer:

$$4 imes2^3-20=?$$

Accepted Answer

12

Answer

-48

Answer

4

Answer

16

Question 25

Choose the correct answer:

$$if\ 2x=4,\ then\ 3x+1=?$$

Accepted Answer

7

Answer

13

Answer

44

Answer

15

Question 26

Choose the correct answer:

$$if\ -x<7,\ then\ ....$$

Accepted Answer

$$x>-7$$

Answer

$$x>7$$

Answer

$$x<7$$

Answer

7 $$x<-7$$

Question 27

Choose the correct answer:

$$The\ multiplicative\ inverse\ of\ the\ number\ \sqrt[]{\frac{9}{25}}is\ ....$$

Accepted Answer

$$\frac{5}{3}$$

Answer

$$\frac{3}{5}$$

Answer

$$\frac{25}{9}$$

Answer

$$\frac{9}{25}$$

Question 28

Choose the correct answer:

$$The\ S.S.\ of\ the\ equation\ :\ 3x=-9\ in\ N\ is\ ...$$

Accepted Answer

$$\phi$$

Answer

$$\left\{-3\right\}$$

Answer

$$\left\{-6\right\}$$

Answer

Zero

Question 29

Choose the correct answer:

$$if\ 3y=15,\ then\ 5y=?$$

Accepted Answer

25

Answer

5

Answer

15

Answer

125

Question 30

Choose the correct answer:

$$The\ S.S.\ of\ the\ inequality\ :\ 3

Accepted Answer

{4}

Answer

{3}

Answer

{3,4}

Answer

$$\phi$$

Question 31

Choose the correct answer:

$$The\ side\ length\ of\ a\ square\ whose\ area\ :\ 9x^2cm^2.\ is\ ....$$

Accepted Answer

$$3x$$

Answer

$$3x^2$$

Answer

$$9x$$

Answer

$$9x^2$$

Question 32

Choose the correct answer:

$$if\ x>y,\ z>zero,\ then\ xz\ .....\ yz$$

Accepted Answer

$$>$$

Answer

$$<$$

Answer

=

Answer

$$\le$$

Question 33

Choose the correct answer:

$$\sqrt[]{9+16}=3+\ .....$$

Accepted Answer

2

Answer

4

Answer

25

Answer

22

Question 34

Choose the correct answer:

$$if\ \frac{26}{x}+1=14,\ then\ x=\ ....$$

Accepted Answer

2

Answer

10

Answer

13

Answer

2215

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