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September: Mathematics

PositiveNaija

641 Posts

Quote from PositiveNaija on June 5, 2021, 9:14:09 PM

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.

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.

To win and succeed is to love.

PositiveNaija

641 Posts Topic Author

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

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

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

To win and succeed is to love.

Owosina Samuel Kayode

23 Posts

Quote from Owosina Samuel Kayode on September 26, 2021, 9:03:43 PM

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

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

albert

1 Post

Quote from albert on September 26, 2021, 9:04:49 PM

1 c

2 c

3 b

4 a

5 b

6 d

7 c

8 a

9 a

10 a

11 b

12 c

13 c

14 c

15 c

1 c

2 c

3 b

4 a

5 b

6 d

7 c

8 a

9 a

10 a

11 b

12 c

13 c

14 c

15 c

Oyinlola

49 Posts

Quote from Oyinlola on September 26, 2021, 9:04:49 PM

1 B

2 C

3 C

4 A

5 C

6 D

7 B

8 B

9 C

10 D

11 B

12 C

13 D

14 C

15 C

1 B

2 C

3 C

4 A

5 C

6 D

7 B

8 B

9 C

10 D

11 B

12 C

13 D

14 C

15 C

Zino

10 Posts

Quote from Zino on September 26, 2021, 9:04:50 PM

1.c
2.c
3.c
4.a
5.c
6.d
7.b
8.d
9.c
10.b
11.b
12.c
13.a
14.d
15.b

1.c
2.c
3.c
4.a
5.c
6.d
7.b
8.d
9.c
10.b
11.b
12.c
13.a
14.d
15.b

Adebajo Emmanuel

8 Posts

Quote from Adebajo Emmanuel on September 26, 2021, 9:05:06 PM

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

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

Esiri

34 Posts

Quote from Esiri on September 26, 2021, 9:05:14 PM

1. C

2. C

3. C

4. A

5. C

6. D

7. B

8. D

9. A

10. C

11. B

12. C

13. A

14. B

15. A

1. C

2. C

3. C

4. A

5. C

6. D

7. B

8. D

9. A

10. C

11. B

12. C

13. A

14. B

15. A

Marcelo494

7 Posts

Quote from Marcelo494 on September 26, 2021, 9:05:14 PM

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

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

dejt4u

277 Posts

Quote from dejt4u on September 26, 2021, 9:05:14 PM

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

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

Kayo

8 Posts

Quote from Kayo on September 26, 2021, 9:05:30 PM

1 B

2. B

3 C

4 B

5 C

6 D

7 B

8 B

9 C

10 B

11 B

12 C

13 A

14 c

15 b

1 B

2. B

3 C

4 B

5 C

6 D

7 B

8 B

9 C

10 B

11 B

12 C

13 A

14 c

15 b

Oguejiofor Nkemakonam Anthony

1 Post

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

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

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

Israel Orere

5 Posts

Quote from Israel Orere on September 26, 2021, 9:05:55 PM

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

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

Kayo

8 Posts

Quote from Kayo on September 26, 2021, 9:06:06 PM

1 B

2. B

3 C

4 B

5 C

6 D

7 B

8 B

9 C

10 B

11 B

12 C

13 A

14 c

15 b

1 B

2. B

3 C

4 B

5 C

6 D

7 B

8 B

9 C

10 B

11 B

12 C

13 A

14 c

15 b

Jackson T

2 Posts

Quote from Jackson T on September 26, 2021, 9:06:06 PM

1c

2c

3c

4d

5c

6d

7b

8b

9a

10d

11a

12c

1c

2c

3c

4d

5c

6d

7b

8b

9a

10d

11a

12c

Ianna David

3 Posts

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

1b

2a

3b

A

C

A

B

C

E

A

1b

2a

3b

A

C

A

B

C

E

A

Nwaigbo Hillary

5 Posts

Quote from Nwaigbo Hillary on September 26, 2021, 9:06:32 PM

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

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

Ibekwe

3 Posts

Quote from Ibekwe on September 26, 2021, 9:06:45 PM

1c

2c

3c

4.a

5. C

6. D

7. B

8. B

9. A

10 c

11. B

12. C

13. A

14 a15 b

1c

2c

3c

4.a

5. C

6. D

7. B

8. B

9. A

10 c

11. B

12. C

13. A

14 a15 b

Ianna David

3 Posts

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

1b

2a

3b

A

C

A

B

C

E

A

1b

2a

3b

A

C

A

B

C

E

A

Ianna David

3 Posts

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

1b

2a

3b

A

C

A

B

C

E

A

1b

2a

3b

A

C

A

B

C

E

A