Qualification > Sciences
Maths & Physics Help
june:
Please i need help with these math questioons, with explanation on how u did it.. thanksssssssssssss
Nov 07 p2 Q12: A and B are sets write the following sets in thier simplest form
a) A n A'
b)A u A'
c) (A u B) U (A n B')
16a) A car manufacturer sells a similar, sclale model of one of its real cars
a) the fuel tank of the real car has a volume of 64litres and the fuel tank of the model has a volume of 0.125 litres.. show that the length of the real car is 8 times the length of the model car
May june 08 p2 q21..
http://www.freeexampapers.us/IGCSE/Maths/CIE/2008%20Jun/0580_s08_qp_2.pdf
NOT TO
SCALE
N
ABCD, BEFC and AEFD are all rectangles.
ABCD is horizontal, BEFC is vertical and AEFD represents a hillside.
AF is a path on the hillside.
AD = 800 m, DC = 600 m and CF = 200 m.
(a) Calculate the angle that the path AF makes with ABCD.
Answer(a) [5]
(b) In the diagram D is due south of C.
Jasmine walks down the path from F to A in bad weather. She cannot see the path ahead.
The compass bearing she must use is the bearing of A from C.
Calculate this bearing.
Answer(b) [3]
astarmathsandphysics:
Am on a mobile phone. Can someone attempt it. Wont be home until later
hyebyekadal:
Hey guys I did this MCQ paper and I got everything EXCEPT this question. I really don't understand why the answer is C. I thought the answer was D. Thanks in advance!
P.S. I have attacehd this particular question if you haven't noticed yet!
Christy:
--- Quote from: june on May 09, 2009, 02:13:39 pm ---Please i need help with these math questioons, with explanation on how u did it.. thanksssssssssssss
Nov 07 p2 Q12: A and B are sets write the following sets in thier simplest form
a) A n A'
b)A u A'
c) (A u B) U (A n B')
16a) A car manufacturer sells a similar, sclale model of one of its real cars
a) the fuel tank of the real car has a volume of 64litres and the fuel tank of the model has a volume of 0.125 litres.. show that the length of the real car is 8 times the length of the model car
May june 08 p2 q21..
http://www.freeexampapers.us/IGCSE/Maths/CIE/2008%20Jun/0580_s08_qp_2.pdf
NOT TO
SCALE
N
ABCD, BEFC and AEFD are all rectangles.
ABCD is horizontal, BEFC is vertical and AEFD represents a hillside.
AF is a path on the hillside.
AD = 800 m, DC = 600 m and CF = 200 m.
(a) Calculate the angle that the path AF makes with ABCD.
Answer(a) [5]
(b) In the diagram D is due south of C.
Jasmine walks down the path from F to A in bad weather. She cannot see the path ahead.
The compass bearing she must use is the bearing of A from C.
Calculate this bearing.
Answer(b) [3]
--- End quote ---
i am not that good at sets soo im really sorry pal
Q16a) its basically similarity
.125/64 = (x/8) cube
its a basic known this when its a volume its --> volume A/ volume B = (length or height A / length or height B) cube the bracket
and the same for area only u sq. it not cube it :D
Q21) a) Wht their asking for it FAC
sq. root (800sq+600sq) = 1000
Tan Q= 200/1000
Q = 11.3
b) ok work with me cause this is really difficult ....
i put up an image to help u image ... sorry if its messy ... ill just do the working here ... hope u under stand
we can do tan cause we need angle DCA
tan Q = 800/600
Q = 53.13
add 180 to that cause they want the bearing ... so its adds up to 233.13
Christy:
sorry its upside down
here :)
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