fluorescent adolescent
Thursday, December 21, 2006
Sec 2 express maths paper 2 holiday hw

1a. ~0.678
b 1. 10mins
b.2. 2.75cm squared
2a. $84000
b 1. $14700
b 2. $1175
b 3. ~$20902
3a. 8/11 (MAybe i will put solution)
3a 2. ~203.71 m
4. I haven do at the moment
5a. x=13
b. ~3488.67 cm cube
6a. 20/x hrs
b. 20/(x+5) hrs
c. 20/x -20/(x+5) = 1/3
(20(x+5) - 20(x)) /x(x+5) =1/3
(20x+100-20x) / (x squared +5x)= 1/3
x squared + 5x =300
x squared +5x-300 =0 (proven)

d. Tom took 1h and 20mins to complete the race ( you can ask me for solution)

7 and 8 graphs qns