數學試卷答案 – St. Stephen’s Girls’ College Form 2 Math Final Exam 2017-18 Paper 1

數學試卷答案 – St. Stephen’s Girls’ College Form 2 Math Final Exam 2017-18 Paper 1

試卷答案

1. 2 : 7
2. a) \(a=\dfrac{2b+1}{3-2b}\)
   b) -5
3. A = 9, B = 8
4. 72°
5. 20
6. a)
   b)
   c) 72%
7. a) 3
   b) 7
   c) 6
8. a) -3(9a + 1)
   b) (b + 2)(9a + 1)
   c) (9a  + 1)(b – 1)
9. a) 27 cm
   b) Yes
   c) 1116 cm²
10. a) \(a+2\sqrt{3ab}\)
    b) a = 3, b = 1  (or other reasonable answers)
11. \(\dfrac{3\sqrt{14}}{2}\)
12. a) 5.34
    b) 46.9°
    c) 7.31
13. a) tan θ = 12/5, sin θ = 12/13, cos θ = 5/13
    b) -13/4
14. a) –
    b) impossible
15. a) AQ = h m
         QB = h\(\sqrt{3}\) m
    b) 7.50 m
16. a) \(\dfrac{6x}{5} mL\)
    b) \(\dfrac{9x}{5} mL\)
    c) 2: 3
17. Yes
18. a) 29523
    b) 4
    c) –

St. Stephen’s Girls’ College Form 2 Math Final Exam 2017-18 Paper 1 試卷