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# September: Mathematics

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Quote from PositiveNaija on June 5, 2021, 9:14:09 PMWelcome to the September 2021 PositiveNaija Science Quiz!

Date: 26th September, 2021 | Time: 9:00 pm - 9:05 pm

The 15 Questions will be updated on this same post at the stated date and time with replies (answers) by participants to follow accordingly.

Thank you.

Welcome to the September 2021 PositiveNaija Science Quiz!

Date: 26th September, 2021 | Time: 9:00 pm - 9:05 pm

The 15 Questions will be updated on this same post at the stated date and time with replies (answers) by participants to follow accordingly.

Thank you.

Quote from PositiveNaija on September 26, 2021, 8:59:34 PM

- In algebra, the use of alphabets such as
a, b, cdenotes

- Operational signs
- Constants
- Any numerical value
- Polynomial

- The process of expressing an algebraic expression in terms of its factors is called:

- Decimals
- Polynomial
- Factorization
- None of the above

- (a + b)
^{2}– (a – b)^{2}is equal to

- 2ab
- a
^{2}– b^{2}- 4ab
- a
^{2}+ b^{2}

- The arithmetic mean between -4 and 12 is

- 4
- -4
- 5
- 3

- The most frequent occurring observation in the data is called:

- Mean
- Median
- Mode
- Standard deviation

- A matrix with only one (1) column is called:

- Square matrix
- Soft matrix
- Identical matrix
- None of the above

- The unit of ratio is:

- cm
- No unit
- Inches
- Radians

- The value of mile in terms of kilometers is

- 1 mile = 2 km
- 1 mile = 1.6 km
- 1 mile = 2.8 km
- 1 mile = 3.6 km

- The value of Acres ‘A’ in terms of Hectares ‘H’ is

- A = 0.5 H approx.
- A = 1.4 H approx.
- A = 2 H approx.
- A = 0.4 H approx.

- The range of R = {(0, 2), (2, 4), (3, 4), (4, 5)} is:

- {0, 2, 4, 5}
- {0, 2, 3, 4}
- {2, 4, 5}
- {3, 4, 5}

- The scientific form of 79.69 is:

- 796.9 x 10
- 7.969 x 10
- 79.69 x 10
- None of the above

- The decimal form of 453.5 x 10
^{-6}is:

- 0.04535
- 4535
- 0.0004535
- 45.35

- An airplane carries 500 passengers; 45% are men, 20% are children. The number of women in the airplane is:

- 175
- 150
- 166
- 180

- There are 480 students in a school; 210 out of them are boys. The ratio of girls to the boys is:

- 5 : 11
- 7 : 3
- 7 : 9
- 9 : 7

- The decimal form of 5% up to 3 decimals is:

- 0.5
- 0.05
- 0.005
- 5

- In algebra, the use of alphabets such as
*a, b, c*denotes- Operational signs
- Constants
- Any numerical value
- Polynomial

** **

- The process of expressing an algebraic expression in terms of its factors is called:
- Decimals
- Polynomial
- Factorization
- None of the above

- (a + b)
^{2}– (a – b)^{2}is equal to- 2ab
- a
^{2}– b^{2} - 4ab
- a
^{2}+ b^{2}

- The arithmetic mean between -4 and 12 is
- 4
- -4
- 5
- 3

- The most frequent occurring observation in the data is called:
- Mean
- Median
- Mode
- Standard deviation

- A matrix with only one (1) column is called:
- Square matrix
- Soft matrix
- Identical matrix
- None of the above

- The unit of ratio is:
- cm
- No unit
- Inches
- Radians

- The value of mile in terms of kilometers is
- 1 mile = 2 km
- 1 mile = 1.6 km
- 1 mile = 2.8 km
- 1 mile = 3.6 km

- The value of Acres ‘A’ in terms of Hectares ‘H’ is
- A = 0.5 H approx.
- A = 1.4 H approx.
- A = 2 H approx.
- A = 0.4 H approx.

- The range of R = {(0, 2), (2, 4), (3, 4), (4, 5)} is:
- {0, 2, 4, 5}
- {0, 2, 3, 4}
- {2, 4, 5}
- {3, 4, 5}

- The scientific form of 79.69 is:

- 796.9 x 10
- 7.969 x 10
- 79.69 x 10
- None of the above

- The decimal form of 453.5 x 10
^{-6}is:- 0.04535
- 4535
- 0.0004535
- 45.35

- An airplane carries 500 passengers; 45% are men, 20% are children. The number of women in the airplane is:
- 175
- 150
- 166
- 180

- There are 480 students in a school; 210 out of them are boys. The ratio of girls to the boys is:
- 5 : 11
- 7 : 3
- 7 : 9
- 9 : 7

- The decimal form of 5% up to 3 decimals is:
- 0.5
- 0.05
- 0.005
- 5

Quote from Owosina Samuel Kayode on September 26, 2021, 9:03:43 PM1. A

2. C

3. B

4. D

5. C

6. A

7. B

8. D

9. B

10. B

11. D

12. C

13. A

14. C

15. C

1. A

2. C

3. B

4. D

5. C

6. A

7. B

8. D

9. B

10. B

11. D

12. C

13. A

14. C

15. C

Quote from Adebajo Emmanuel on September 26, 2021, 9:05:06 PM1.b

2.c

3.c

4.a

5.c

6.d

7.b

8.b

9.d

10.a

11.b

12.c

13.a

14.a

15.c

1.b

2.c

3.c

4.a

5.c

6.d

7.b

8.b

9.d

10.a

11.b

12.c

13.a

14.a

15.c

Quote from Marcelo494 on September 26, 2021, 9:05:14 PM1.C

2.C

3.a

4.a

5.c

6.d

7.b

8.d

9.d

10.c

11.b

12.c

13.a

14.d

15.c

1.C

2.C

3.a

4.a

5.c

6.d

7.b

8.d

9.d

10.c

11.b

12.c

13.a

14.d

15.c

Quote from Ayodeji Olowolagba on September 26, 2021, 9:05:14 PM1. B

2. C

3. A

4. A

5. C

6. D

7. B

8. B

9. D

10. A

11. B

12. C

13. A

14. D

15. B

Ayodeji Olowolagba

1. B

2. C

3. A

4. A

5. C

6. D

7. B

8. B

9. D

10. A

11. B

12. C

13. A

14. D

15. B

Ayodeji Olowolagba

Quote from Oguejiofor Nkemakonam Anthony on September 26, 2021, 9:05:54 PM1 c

2 c

3 d

4 d

5 c

6 d

7 b

8a

9 a

10 c

11 b

12 c

13 a

14 d

15 c

1 c

2 c

3 d

4 d

5 c

6 d

7 b

8a

9 a

10 c

11 b

12 c

13 a

14 d

15 c

Quote from Israel Orere on September 26, 2021, 9:05:55 PM1.c

2.c

3.c

4.d

5.c

6.b

7.b

8.b

9.d

10.a

11.b

12.c

13.a

14.d

15.b

1.c

2.c

3.c

4.d

5.c

6.b

7.b

8.b

9.d

10.a

11.b

12.c

13.a

14.d

15.b

Quote from Ianna David on September 26, 2021, 9:06:11 PM1b

2a

3b

A

C

A

B

C

E

A

1b

2a

3b

A

C

A

B

C

E

A

Quote from Nwaigbo Hillary on September 26, 2021, 9:06:32 PM1. D

2. B

3. D

4. A

5. C

6. B

7. B

8. B

9. B

10. C

11. B

12. C

13. A

14. D

15. D

1. D

2. B

3. D

4. A

5. C

6. B

7. B

8. B

9. B

10. C

11. B

12. C

13. A

14. D

15. D

Quote from Ianna David on September 26, 2021, 9:06:49 PM1b

2a

3b

A

C

A

B

C

E

A

1b

2a

3b

A

C

A

B

C

E

A

Quote from Ianna David on September 26, 2021, 9:07:24 PM1b

2a

3b

A

C

A

B

C

E

A

1b

2a

3b

A

C

A

B

C

E

A

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