help question plz (1 Viewer)

[sexy grl]

can someone plz help me work out Q) 27 of last years hsc paper with a clear working out thanku

parts i,ii,iii
thanku

 

[Misturi]

It would be nice if you could post the link...

l'll have a shot at it.

 

[Misturi]

P.S the question is here for everyone else:

http://www.boardofstudies.nsw.edu.au/hsc_exams/hsc2002exams/pdf_doc/mathemat_gen_02.pdf

Page 20

 

[Misturi]

For ii) this is what l did:

cosine = 18/22 = 35.1

i) l am not sure about..
iii) l'm not so sure about either, but you just have to find the bearing, so you find out the distance in degrees form Z to Y.

 

[Chris462]

ok here are my answers, if someone else agrees with them then i will post the working out.

(i) 136 degrees

(ii) 37.1 km

(iii) 226 degrees

 

[sexy grl]

comeon chris just show us how u done it

 

[Chris462]

lol, ok, im having lunch now though, check back in about an hour...

 

[Misturi]

Originally posted by sexy grl
comeon chris just show us how u done it

no please or anything? ppfft

 

[Misturi]

Originally posted by Chris462
(ii) 37.1 km

i got 35.1km...oh well l was close..

 

[Lundy]

Yeah, I agree with those answers, except for iii) I got 224

 

[Misturi]

Originally posted by Lundy
Yeah, I got the same answers, except for iii) I got 224

Same

360 - 136 = 224

And is this year 11 work?

 

[Chris462]

ok heres my dig at it, can someone tell me why i was 2 out on the last ques, thanks...

 

[Chris462]

oops forgot the answer for the last one, 90 + 90 + 46 = 226

 

[Misturi]

Myabe you put into your calc a wrong digit, like 360 - 134 or something..

 

[sexy grl]

thankyou so much for your help chris i appreciate very much

 

[Lundy]

edit: nevermind, think I did something wrong somewhere

I got 226