How was E-maths paper 2?

last SG · 2009-10-28T19:17:45+00:00

but you're saying 9.5mins = 9/50/100 and 9/30/60there's a huge different.THIS is different, because the base is 60 for 60 sec,9 50/100 = 1 min got 100 sec. L...

Sgforum King SG

i think quite easy

Audi SG

Many times easier than paper 1.

I screwed up the part on conversion of formulas. forgot to put in +/-. I think the determining factor lies on paper 1, which is the tougher of the 2 papers.

Sgforum King SG

i prefer paper 1 cause lesser trigo.

yiha093 SG

fucking easy

enuff said.

qdtimes2 SG

okay.. harder than paper 1

the toughest question is the pentagon figure thing

i forgot to reject the x = 40++, dunno lose how many marks ..

Han chiang SG

Yea easier than paper 1.

Music-Life SG

I also careless. 2b, express in simplest form, I went and expand too much, then give me a non fraction but no time to change.

2c, forgot to put the +/- sign when expressing u in terms of g, h, v

5a, forgot that 1 is perfect square -_-

btw, got this question my friends are not agreeing with each other. question 8bii. Find the greatest possible angle of elevation of D from a point on BC. What was your answer? How did you get it?

Gravity~ SG

i think is around the same standard. i managed to solve the pentagon question.

Han chiang SG

I think I write 8.2

Tanboonjoon 999 SG

hmm for the greatest angle of elevation. i think i got 8 . something. i find the shortest distance then use tan inverse to get it

Music-Life SG

Ok good (: thats what I did. Dunno why some of my friends went and took the middle and BC, saying thats the shortest distance.

Anybody wrote down answers? lets compare. I'll put my answers up once I get things sorted out.

Sgforum King SG

okay.. harder than paper 1

the toughest question is the pentagon figure thing

i forgot to reject the x = 40++, dunno lose how many marks ..

lol i aced the pentagon fiqure 1

yiha093 SG

i written mine down. later i put here ba.

ViewtyKU990 SG

My Answers for GCE 'O' Level Paper 2

1a(i) 22.5 minutes a(ii) 58 1/3%

b(i) 18 18/19 km/h (ii) 8 minutes 33 seconds (iii) 10 minutes 0 seconds

2a(i) (5-p)(5+p) (ii) (5-p)/3

b -(4x+5)/(x+2)^2

c(i) +- 20.7 (ii) +- root of (v^2 +2gh)

3a 10.1m

b(i) 10.9m (ii) 45.4degrees

4a(i) 33 degrees (ii) 57 degrees (iii) 123 degrees

b Show

c 13cm

5a(i) Venn diagram (ii) {3,6,12,15} (iii) 8

b(i) (25 15) (ii) (75 165)

(10 30) (110 80)

(iv)(a) (700) (iv)(c) (13.50)

(650)

6a 1.07

d gradient +-10% from 3.26

e y= 2.5 when x = 3.4

7a 2.75cm

c 81.3cm

e 2.40cm^2

8a(i) 399m (ii) 58.0 degrees (iii) 158.0degrees

b(i) 79.2m (ii) 8.2 degrees

9b(i) (7+x) cm (ii) (7-x) cm

d x=2.18 or x =45.82 (2decimal place)

e Reject x = 45.82, diameter 44mm

10a(ii) (a) 6.3 marks (ii)(b) 1.24 marks

b(ii)(a) 5/18 (ii)(b) 4/9 (ii)(c) 5/9

Daisuke-kun SG

you guys are sick.

paper 1 was easier

ViewtyKU990 SG

post yours here want to check whether correct or not lols

ViewtyKU990 SG

you guys are sick.

paper 1 was easier

i feel that both papers easier than this year PSLE

SBS n SMRT SG

paper 2 was manageable, okays. Should be able to get A1........

Music-Life SG

1ai) 22 minutes 30 seconds

1aii) 58.3%

1bi) 18.9km/h

1bii) 8 minutes 33 seconds

1biii) 10 minutes

2ai) (5 + p)(5 - p)

2aii) 5-p / 3

2b) wrong

2ci) 20.7

2cii) wrong, answer +/- sqrrt v^2 + 2gh

3a) 10.1 m

3bi) 10.9 m

3bii) 45.4 degrees

4ai) 33 degrees

4aii) 57 degrees

4aiii) 123 degrees

4c) 13 cm

5aii) { 3, 6, 12, 15 }

5aiii) wrong, answer 8

Read in top left, top right, bottom left, bottom right form

5bi) 25, 15, 10, 30

5bii) 75, 165, 110, 80

5biii) number of adult and number of children from monday to saturday

5biva) 700, 650

5bivb) Total amount for morning and total amount for afternoon every weekday

5bivc) 13.50

5bivd) Total amount in dollars for every weekday

6a) 1.07

6c) 2.35, 4.90

6d) 3.10

6e) 3.40

7a) 2.75 cm

7c) 81.3 cm

7e) 2.39 cm^2

8ai) 399 m

8aii) 58.5 degrees

8iii) 158.5 degrees

8bi) 79.2 m

8bii) 8.19 degrees

9bi) ( x + 7 ) cm

9bii) ( 7 - x ) cm

9d) 2.18 cm or 45.82 cm

9e) 4.40 cm

10aiia) 6.3

10aiib) 1.24

10biia) 5/18

10biib) 4/9

10biic) 5/9

ViewtyKU990 SG

1ai) 22 minutes 30 seconds

1aii) 58.3%

1bi) 18.9km/h

1bii) 8 minutes 33 seconds

1biii) 10 minutes

2ai) (5 + p)(5 - p)

2aii) 5-p / 3

2b) wrong

2ci) 20.7

2cii) wrong, answer +/- sqrrt v^2 + 2gh

3a) 10.1 m

3bi) 10.9 m

3bii) 45.4 degrees

4ai) 33 degrees

4aii) 57 degrees

4aiii) 123 degrees

4c) 13 cm

5aii) { 3, 6, 12, 15 }

5aiii) wrong, answer 8

Read in top left, top right, bottom left, bottom right form

5bi) 25, 15, 10, 30

5bii) 75, 165, 110, 80

5biii) number of adult and number of children from monday to saturday

5biva) 700, 650

5bivb) Total amount for morning and total amount for afternoon every weekday

5bivc) 13.50

5bivd) Total amount in dollars for every weekday

6a) 1.07

6c) 2.35, 4.90

6d) 3.10

6e) 3.40

7a) 2.75 cm

7c) 81.3 cm

7e) 2.39 cm^2

8ai) 399 m

8aii) 58.5 degrees

8iii) 158.5 degrees

8bi) 79.2 m

8bii) 8.19 degrees

9bi) ( x + 7 ) cm

9bii) ( 7 - x ) cm

9d) 2.18 cm or 45.82 cm

9e) 4.40 cm

10aiia) 6.3

10aiib) 1.24

10biia) 5/18

10biib) 4/9

10biic) 5/9

6c should be range of x, not just the 2 numbers

2c(i) should be +-

9e leave in mm lol