hey 2E3-s!!!
Sry for the last minute notice...
BUT, I am watching a movie on Wednesday, 04/11
Title : Coraline 3D
Movie time : 2.35pm
Cinema : West Mall
Ticket price : $8++ (Nt comfirm)
Meeting time: 2.00 pm
Place: At BB interchange near "BUZZ" shop.
Those who are comfirm going :
Syafiqa
Gui Ting
Nadia
Samuel
Darren Tan
Darren Yap
ASNITA!!!(duh)
Your presence is greatly appreciated!!!
Do bring extra money along. Dont say I never inform hor! :D
Anythng just msg me ~ Asnita!! :D
Class outing, yes or no??
3;
Let x be the distance of H from the building and y be the distance of K from the building.
sin43 = 72 / x
x = 72 / sin43
x = 105.5721014
x = 11.3 (1 d.p.)
y = 72 / sin54
y = 88.99689438
y = 89.0 (1 d.p.)
5;
Let x be the distance between the two buildings.
tan33.9 = 35 / x
x = 35 / tan33.9
x = 52.08549381
x = 52.1 (1 d.p.)
9; [Ignore the '-', √ means squareroot, ^ means square]
a) Let x be the length of CE.
---sin60 = x / 25
---x = 25sin60
---x = 21.65063509
---x = 21.7 (1 d.p.)
b) Let y be the length of BE.
---tan30 = 21.65063509 / y
---y = 21.65063509 / tan30
---y = 37.49999999
---y = 37.5 (1 d.p.)
c) Let z be the length of AD.
---z = √25^+ 25^
---z = 35.35533906 (negative rejected)
---z = 35.4 (1 d.p.)
12; [√ means squareroot, ^ means square.]
Let y be the length of the wall.
y = √13^ + 5^
y = 12 (negitive rejected)
(12 - x)^ + (5 + x)^ = 169
144 - 24x + x^ + 25 + 10x + x^ = 169
2x^ - 14x + 169 = 169
2x^ - 14x = 0
2x(x - 7) = 0
x = 0 or 7. (0 rejected.)
x = 7.
