JesusChriiii
Member
- Joined
- Jul 30, 2019
- Messages
- 78
- Gender
- Male
- HSC
- 2021
Depends on if you flipped the fraction in the log
-
Best of luck to the class of 2024 for their HSC exams. You got this! Let us know your thoughts on the HSC exams here -
YOU can help the next generation of students in the community! Share your trial papers and notes on our Notes & Resources page
Math Ext 1 Predictions/Thoughts (3 Viewers)
- Thread starter Jojofelyx
- Start date
but wasnt the integral dt/dT = 1/k x 1/T-25 or whatever but 1/k out the front (positive 1/k)Depends on if you flipped the fraction in the log
JesusChriiii
Member
- Joined
- Jul 30, 2019
- Messages
- 78
- Gender
- Male
- HSC
- 2021
dT/dt = k(T-25) ?but wasnt the integral dt/dT = 1/k x 1/T-25 or whatever but 1/k out the front (positive 1/k)
I see what you mean, so k better be negative since T is increasing and (T-25) is negative. Btw did the question ask you to find k or not , if it didn’t and just wanted you to find the time I guess you can do either way?
idk i just had e^kt, but didnt know if i had to somehow make it e^-kt but i got around 38/9mins so i assume it workeddT/dt = k(T-25) ?
I see what you mean, so k better be negative since T is increasing and (T-25) is negative. Btw did the question ask you to find k or not , if it didn’t and just wanted you to find the time I guess you can do either way?
no its just k is negativeidk i just had e^kt, but didnt know if i had to somehow make it e^-kt but i got around 38/9mins so i assume it worked
as in the value of ln3/4 all on 8 is negativeno its just k is negative
no its already negative cus the number in the log is less than 1as in the value of ln3/4 all on 8 is negative
cool but you didnt have to specify e^-kt, it just did it itself by doing e^kt and solving for kno its already negative cus the number in the log is less than 1
lad says he has em, but cbf to chuck em up, i think the conquerhsc discord isur best bet, theyre doing like a live solns sesh rn.anyone got pdf of paper/worker solutions also?
just kinda wanna see the answers/questions to see the mark ill probs getlad says he has em, but cbf to chuck em up, i think the conquerhsc discord isur best bet, theyre doing like a live solns sesh rn.
91-93 i reckon. I still dont get why people thought this year's paper was harder than last year's, 2020 was sum wacky stuff lolwhat do u guys think a 85-90 raw will scale to?
or maybe they didnt study as much.... O_OIs anyone else worried that the raw mark to hsc mark conversion will be a lot worse this year because everyone has had more time to study?
stupidpersonlol
Well-Known Member
- Joined
- Nov 6, 2020
- Messages
- 385
- Gender
- Undisclosed
- HSC
- 2021
lol what is a good raw mark for e4
I mean last year it was 73 for a 91 iirc, but this year id say 80~ raw should be fine?lol what is a good raw mark for e4
I really dont think this year was easier, all last year had was a perms and combs qI mean last year it was 73 for a 91 iirc, but this year id say 80~ raw should be fine?
nah this yr was slightly easier for sureI really dont think this year was easier, all last year had was a perms and combs q
i cant see how it was harder this yr
curious about what to you was hard in 2020 and what was hard in the 2021 paper to younah this yr was slightly easier for sure
i cant see how it was harder this yr