ATAR Notes: Forum

VCE Stuff => VCE Mathematics => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE General & Further Mathematics => Topic started by: some dude on November 07, 2011, 03:35:51 pm

Title: Exam 2
Post by: some dude on November 07, 2011, 03:35:51 pm
ok so i copied some of my answers to the "harder" questions. see wat you guys think:
last question for Geometry: height=42m and Volume=438m^3

maximum almonds question: 125g of almonds(x)

walkie talkie? question(graphs): 1.38 hours

half colonies question (matricies): during 5th year

last matrices question: 400 juveniles and 0 adults
Title: Re: Exam 2
Post by: 99.96 on November 07, 2011, 03:37:35 pm
I got the same as you for everything. Except geometry cos i dont do it
Title: Re: Exam 2
Post by: Furbob on November 07, 2011, 03:38:16 pm
dammit, did 120g of almonds... would I get 1/2 marks for that?
Title: Re: Exam 2
Post by: Haras_Etak on November 07, 2011, 03:39:25 pm
I got everything the same except for the damn walkie talkies. Sorry, but I don't think you'll get any marks for 120gm. :(
Title: Re: Exam 2
Post by: 99.96 on November 07, 2011, 03:40:08 pm
can you even get 1/2 marks in further?
Title: Re: Exam 2
Post by: Haras_Etak on November 07, 2011, 03:41:44 pm
No, I don't think you get half marks. But the question was out of 2 so if you showed some working out maybe you could get 1 mark?
Title: Re: Exam 2
Post by: Furbob on November 07, 2011, 03:41:58 pm
woops, it was 2 marks worth I think, I meant getting 1 mark for that out of the 2 not half
Title: Re: Exam 2
Post by: some dude on November 07, 2011, 03:42:05 pm
Quote from: 99.96 on November 07, 2011, 03:37:35 pm
I got the same as you for everything. Except geometry cos i dont do it

sweet :) although i think i might of got a really silly mistake for the second trig question. might of wrote down 152 instead of 208 degrees :o  heres hoping i did put 208! other than that i thonk i aced it:)
Title: Re: Exam 2
Post by: kenny_ on November 07, 2011, 05:45:32 pm
how did you get h=42? wasn't it just h/18 = 3.5/2?
Title: Re: Exam 2
Post by: davidle_10 on November 07, 2011, 05:48:08 pm
h-18/h=2/3.5 or the other way around h/h-18=3.5/2
Title: Re: Exam 2
Post by: kenny_ on November 07, 2011, 05:49:57 pm
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Title: Re: Exam 2
Post by: smithy16 on November 07, 2011, 05:52:43 pm
How did you get 400 and 0 for the last matrices question? I was positive that it was 0 and 100
Title: Re: Exam 2
Post by: Deank on November 07, 2011, 05:55:32 pm
Quote from: smithy16 on November 07, 2011, 05:52:43 pm
How did you get 400 and 0 for the last matrices question? I was positive that it was 0 and 100

You need to do the inverse twice, as 100 Juveniles and 50 Adults is at the end of the 2nd year, 0 Juveniles and 100 Adults is at the end of the first year, we needed to find the initial S0 state matrix.