Login

Search the forums now!

Welcome, Guest. Please login or register.

September 10, 2025, 08:11:39 pm
Pages: 1 ... 240 241 [242] 243 244 ... 304   Go Down

Author Topic: Mathematics Question Thread  (Read 1626949 times)  Share 

0 Members and 2 Guests are viewing this topic.

S200

  • Part of the furniture
  • *****
  • Posts: 1108
  • Yeah well that happened...
  • Respect: +244
Re: Mathematics Question Thread
« Reply #3615 on: August 03, 2018, 04:57:16 pm »
0
Quote from: amelia20181 on August 03, 2018, 03:39:59 pm
how do you do
By this time in the year, you should know what the graph of
looks like.

The +5 is just translation to the left - As shown by @fun_jirachi
Logged
Carpe Vinum

\(\LaTeX\) - \(e^{\pi i }\)
#ThanksRui! - #Rui\(^2\) - #Jamon10000

5233718311 :D

amelia20181

  • Trendsetter
  • **
  • Posts: 120
  • Respect: 0
Re: Mathematics Question Thread
« Reply #3616 on: August 03, 2018, 08:22:05 pm »
0
is it possible to get a band 5/6 if you fail everything but do well in trials and the hsc?
Logged

jamonwindeyer

  • Honorary Moderator
  • Great Wonder of ATAR Notes
  • *******
  • Posts: 10149
  • The lurker from the north.
  • Respect: +3108
Re: Mathematics Question Thread
« Reply #3617 on: August 03, 2018, 10:59:40 pm »
0
Quote from: amelia20181 on August 03, 2018, 08:22:05 pm
is it possible to get a band 5/6 if you fail everything but do well in trials and the hsc?

Absolutely! You can read the specifics here, but the HSC exam is really the thing you want to do well in. A super strong performance there can largely make up for less than ideal results earlier in the year.

Like, to go from failing your exams to getting a Band 5/6 is a big jump, and you'd need to put in an insane amount of work. But it is definitely possible :)
Logged

gumscape

  • Adventurer
  • *
  • Posts: 12
  • in the long run we are all dead
  • Respect: 0
Re: Mathematics Question Thread
« Reply #3618 on: August 04, 2018, 01:54:22 pm »
0
Hello! Trials is going to get me k i l l e d. I'm absolutely stuck when it comes to Simpson's and Trapezoidal rule for more than one application. I just cannot get my head around it. Can someone give me a thorough answer for Q12 d) i. 2012 HSC please? Thank you!
Logged
HSC '18 (ATAR goal: 90+)
ESL | Adv. Maths | Economics | Biology | Vietnamese Continuers

dermite

  • Trendsetter
  • **
  • Posts: 123
  • You are just like everyone else, unique.
  • Respect: +2
Re: Mathematics Question Thread
« Reply #3619 on: August 04, 2018, 02:01:16 pm »
0
Quote from: gumscape on August 04, 2018, 01:54:22 pm
Hello! Trials is going to get me k i l l e d. I'm absolutely stuck when it comes to Simpson's and Trapezoidal rule for more than one application. I just cannot get my head around it. Can someone give me a thorough answer for Q12 d) i. 2012 HSC please? Thank you!

well h = 3 as the interval lengths are 3.
then you have 1(0.5) + 4(2.3) + 2(2.9) + 4(3.8) + 1(2.1)

so
A ~ 3/3 [1(0.5) + 4(2.3) + 2(2.9) + 4(3.8) + 1(2.1)]
= 32.8m2
Logged
HSC 2018
English Advanced  
Maths Extension 1
Physics
Chemistry
Information Processes and Technology
Goal : 93 ATAR

LaraC

  • Forum Regular
  • **
  • Posts: 80
  • Respect: +4
Re: Mathematics Question Thread
« Reply #3620 on: August 04, 2018, 05:25:29 pm »
0
Hello!
Could I have help with this probability question please and show me how it would be done?

Two musicians are selected at random to lead their band. One person is chosen from Band A, which has 8 females and 7 males, and the other is chosen from band B, which has 6 females and 9 males. Find the probability of choosing 1 female and 1 male?

thx
Logged

RuiAce

  • ATAR Notes Lecturer
  • Honorary Moderator
  • Great Wonder of ATAR Notes
  • *******
  • Posts: 8814
  • "All models are wrong, but some are useful."
  • Respect: +2575
Re: Mathematics Question Thread
« Reply #3621 on: August 04, 2018, 05:33:50 pm »
+4
Quote from: LaraC on August 04, 2018, 05:25:29 pm
Hello!
Could I have help with this probability question please and show me how it would be done?

Two musicians are selected at random to lead their band. One person is chosen from Band A, which has 8 females and 7 males, and the other is chosen from band B, which has 6 females and 9 males. Find the probability of choosing 1 female and 1 male?

thx
Logged

amelia20181

  • Trendsetter
  • **
  • Posts: 120
  • Respect: 0
Re: Mathematics Question Thread
« Reply #3622 on: August 04, 2018, 10:38:58 pm »
0
how do you do
Logged

fun_jirachi

  • MOTM: AUG 18
  • Moderator
  • Part of the furniture
  • *****
  • Posts: 1068
  • All doom and Gloom.
  • Respect: +710
Re: Mathematics Question Thread
« Reply #3623 on: August 04, 2018, 10:42:50 pm »
+1
is there any other information from that question?
I don't think you can solve that without other information
Logged
Spoiler
HSC 2018: Mod Hist [88] | 2U Maths [98]
HSC 2019: Physics [92] | Chemistry [93] | English Adv [87] | 3U Maths [98] | 4U Maths [97]
ATAR: 99.05

UCAT: 3310 - VR [740] | DM [890] | QR [880] | AR [800]
Guide Links:
Subject Acceleration (2018)
UCAT Question Compilation/FAQ (2020)
Asking good questions

amelia20181

  • Trendsetter
  • **
  • Posts: 120
  • Respect: 0
Re: Mathematics Question Thread
« Reply #3624 on: August 04, 2018, 10:54:47 pm »
0
Quote from: fun_jirachi on August 04, 2018, 10:42:50 pm
is there any other information from that question?
I don't think you can solve that without other information

theres no other information
Logged

fun_jirachi

  • MOTM: AUG 18
  • Moderator
  • Part of the furniture
  • *****
  • Posts: 1068
  • All doom and Gloom.
  • Respect: +710
Re: Mathematics Question Thread
« Reply #3625 on: August 04, 2018, 10:57:59 pm »
+1
oh wait i just realised how stupid i am
*smacks face*
so R is the rate of change, or dy/dx
d/dx(e^4x) = 4e^4x
you notice that e^4x is equal to y, as given in y=e^4x
you substitute that back into the derivative of the function
giving R=4y
Logged
Spoiler
HSC 2018: Mod Hist [88] | 2U Maths [98]
HSC 2019: Physics [92] | Chemistry [93] | English Adv [87] | 3U Maths [98] | 4U Maths [97]
ATAR: 99.05

UCAT: 3310 - VR [740] | DM [890] | QR [880] | AR [800]
Guide Links:
Subject Acceleration (2018)
UCAT Question Compilation/FAQ (2020)
Asking good questions

S200

  • Part of the furniture
  • *****
  • Posts: 1108
  • Yeah well that happened...
  • Respect: +244
Re: Mathematics Question Thread
« Reply #3626 on: August 04, 2018, 11:00:31 pm »
0
Well from what you have given, I'd say it was using antiderivative?

__________________________
Oops. I'll stick to VCE Maths... :D
Logged
Carpe Vinum

\(\LaTeX\) - \(e^{\pi i }\)
#ThanksRui! - #Rui\(^2\) - #Jamon10000

5233718311 :D

amelia20181

  • Trendsetter
  • **
  • Posts: 120
  • Respect: 0
Re: Mathematics Question Thread
« Reply #3627 on: August 05, 2018, 02:59:17 pm »
0
how do you integrate this





Logged

jamonwindeyer

  • Honorary Moderator
  • Great Wonder of ATAR Notes
  • *******
  • Posts: 10149
  • The lurker from the north.
  • Respect: +3108
Re: Mathematics Question Thread
« Reply #3628 on: August 05, 2018, 03:00:51 pm »
0
Quote from: amelia20181 on August 05, 2018, 02:59:17 pm
how do you integrate this

Hey! Like this:



This is just using the rule on your reference sheet for integrating exponentials! :)
Logged

amelia20181

  • Trendsetter
  • **
  • Posts: 120
  • Respect: 0
Re: Mathematics Question Thread
« Reply #3629 on: August 05, 2018, 03:19:01 pm »
0
how do you do this
Logged
Pages: 1 ... 240 241 [242] 243 244 ... 304   Go Up