A piece of cloth was measured as 6.10m. If the actual length of the cloth is 6.35, find the percentage error, correct to 2 decimal places
- A. 3.05%
- B. 3.95%
- C. 15.00%
- D. 25.00%
- E. 39.30%
Find the number whose logarithm to base 10 is 2.6025
- A. 0.0004
- B. 4.004
- C. 40.04
- D. 400.4
- E. 4004
The nth term of a sequence is represented by 3 x 2(2-n). Write down the first three terms of the sequence
- A. 3/2, 3, 6
- B. 6, 3, 3/2
- C. 3/2, 3, 1/3
- D. 2/3, 3, 8/3
- E. 3/2, 0, 6
Convert 35 to a number in base two
- A. 1011two
- B. 10011two
- C. 100011two
- D. 110010two
- E. 110001two
When an aeroplane is 800m above the ground, its angle of elevation from a point P on the ground is 30o. How far is the plane from P by line of sight?
- A. 400m
- B. 800m
- C. 1500m
- D. 1600m
- E. 1700m
A student measured the length of a room and obtained the measurement of 3.99m. If the percentage error of is measurement was 5% and his own measurement was smaller than the length , what is the length of the room?
- A. 3.78m
- B. 3.80m
- C. 4.18m
- D. 4.20m
- E. 4.788m
If log\(_{10}\) a = 4; what is a?
- A. 0.4
- B. 40
- C. 400
- D. 1000
- E. 10000
Simplify 0.63954 ÷ 0.003 giving your answer correct to two significant figures
- A. 213.18
- B. 213.00
- C. 213
- D. 210
- E. 21
Cos x is negative and sin x is negative.Which of the following is true of x?
- A. 0o < x < 90o
- B. 90o < x <180o
- C. 180o < x < 270o
- D. 270o < x <360o
- E. -90o < x <90o
If log\(_{10}\) q = 2.7078, what is q?
- A. 5102
- B. 849.9
- C. 510.2
- D. 84.99
- E. 51.02
What value of k makes the given expression a perfect square ? m\(^2\) – 8m + k = 0
- A. 2
- B. 4
- C. 8
- D. 16
- E. 64
Find the root of the equation 2x\(^2\) – 3x – 2 = 0
- A. x = -2 or 1/2
- B. x = -2 or1
- C. x = -2 or 2
- D. x = -1 or 2
- E. x = -1/2 or 2