1 - 10 of 35 Questions
# | Question | Ans |
---|---|---|
1. |
Find the surface area of a sphere whose radius is 3.5cm, correct your answer to one decimal place (π = \(\frac{22}{5}\)) A. 12.8cm2 B. 25.7cm2 C. 77.0cm2 D. 154.0cm2 E. 179.7cm2 |
D |
2. |
Two angles of a triangle are 450 each and its longest side is 12cm. Find the length of one of the other sides A. 12cm B. 9\(\sqrt{2}\)cm C. 6\(\sqrt{2}\)cm D. 6cm E. 3\(\sqrt{2}\)cm |
C |
3. |
The nth term of a sequence is given as 4 x 3(3 - n). Calculate the third term. A. 12 B. 32 C. 4 D. 3 E. 1 |
C |
4. |
If y varies inversely as x2, how does x vary with y? A. x varies inversely as y2 B. x varies inversely as \(\sqrt{y}\) C. x varies directly as y2 D. x varies directly as \(\sqrt{y}\) E. x varies directly as y |
B |
5. |
Evaluate \(1011_{two}\) + \(1101_{two}\) + \(1001_{two}\) - \(111_{two}\) A. 10001\(_{two}\) B. 11001\(_{two}\) C. 110001\(_{two}\) D. 11010\(_{two}\) E. 10001\(_{two}\) Detailed SolutionConvert each value to decimal (base 10)\(1011_{two}\) → 11 + \(1101_{two}\) → 13 + \(1001_{two}\) → 9 - \(111_{two}\) → 7 : 11 + 13 + 9 - 7 = 26 26 → \(11010_{two}\) |
|
6. |
Find the area of a triangle ABC such that a = 16cm, b = 14cm, c = 12cm, leave your answer in surd form A. 5\(\sqrt{15}\)cm2 B. 7\(\sqrt{15}\)cm2 C. 21\(\sqrt{3}\)cm2 D. 21\(\sqrt{5}\)cm2 E. 21\(\sqrt{15}\)cm2 |
E |
7. |
If the first term of an AP is 1.2 and the common difference is also 2, what is the mean of the first five terms? A. 2 B. 4 C. 6 D. 8 E. 10 |
C |
8. |
The angle subtended by a diameter of a circle at the circumference is a/an A. acute angle B. obtuse angle C. reflex angle D. right angle E. supplementary angle |
D |
9. |
Calculate (0.05 × 0.025) ÷ (4.25 × 3.35) and express your answer in standard form A. 8.7796 × 105 B. 8.7796 × 104 C. 8.7796 × 103 D. 8.7796 × 10-3 E. 8.7796 × 10-5 |
E |
10. |
The expression 4x2 - 4 has the following as its factors EXCEPT A. x - 1 B. x + 1 C. x2 -1 D. 4x + 1 E. 4x - 4 |
D |
1. |
Find the surface area of a sphere whose radius is 3.5cm, correct your answer to one decimal place (π = \(\frac{22}{5}\)) A. 12.8cm2 B. 25.7cm2 C. 77.0cm2 D. 154.0cm2 E. 179.7cm2 |
D |
2. |
Two angles of a triangle are 450 each and its longest side is 12cm. Find the length of one of the other sides A. 12cm B. 9\(\sqrt{2}\)cm C. 6\(\sqrt{2}\)cm D. 6cm E. 3\(\sqrt{2}\)cm |
C |
3. |
The nth term of a sequence is given as 4 x 3(3 - n). Calculate the third term. A. 12 B. 32 C. 4 D. 3 E. 1 |
C |
4. |
If y varies inversely as x2, how does x vary with y? A. x varies inversely as y2 B. x varies inversely as \(\sqrt{y}\) C. x varies directly as y2 D. x varies directly as \(\sqrt{y}\) E. x varies directly as y |
B |
5. |
Evaluate \(1011_{two}\) + \(1101_{two}\) + \(1001_{two}\) - \(111_{two}\) A. 10001\(_{two}\) B. 11001\(_{two}\) C. 110001\(_{two}\) D. 11010\(_{two}\) E. 10001\(_{two}\) Detailed SolutionConvert each value to decimal (base 10)\(1011_{two}\) → 11 + \(1101_{two}\) → 13 + \(1001_{two}\) → 9 - \(111_{two}\) → 7 : 11 + 13 + 9 - 7 = 26 26 → \(11010_{two}\) |
6. |
Find the area of a triangle ABC such that a = 16cm, b = 14cm, c = 12cm, leave your answer in surd form A. 5\(\sqrt{15}\)cm2 B. 7\(\sqrt{15}\)cm2 C. 21\(\sqrt{3}\)cm2 D. 21\(\sqrt{5}\)cm2 E. 21\(\sqrt{15}\)cm2 |
E |
7. |
If the first term of an AP is 1.2 and the common difference is also 2, what is the mean of the first five terms? A. 2 B. 4 C. 6 D. 8 E. 10 |
C |
8. |
The angle subtended by a diameter of a circle at the circumference is a/an A. acute angle B. obtuse angle C. reflex angle D. right angle E. supplementary angle |
D |
9. |
Calculate (0.05 × 0.025) ÷ (4.25 × 3.35) and express your answer in standard form A. 8.7796 × 105 B. 8.7796 × 104 C. 8.7796 × 103 D. 8.7796 × 10-3 E. 8.7796 × 10-5 |
E |
10. |
The expression 4x2 - 4 has the following as its factors EXCEPT A. x - 1 B. x + 1 C. x2 -1 D. 4x + 1 E. 4x - 4 |
D |