General Thoughts: Mathematics (1 Viewer)

photastic

Well-Known Member
Joined
Feb 11, 2013
Messages
1,848
Gender
Male
HSC
2014
part i) i just went screw it and put 10/3 + 10. it's wrong 99% sure

I'm curious about question 13 b)ii too :( im sure i got it wrong
Part i was to find the IMMEDIATE amount, hence, you calculate how much was left from the 1st dose and you add it to the 10mL so it should be 10/3+10 unless we're wrong.
 

chrisdelinet

Member
Joined
May 6, 2014
Messages
44
Gender
Male
HSC
2014
part i) i just went screw it and put 10/3 + 10. it's wrong 99% sure

I'm curious about question 13 b)ii too :( im sure i got it wrong
you are right for part i) as the question says amount of drugs right after second dose (somewhere on the lines of this) therefore at end of 1st 8hr period there will be 10/3 mL of drugs within patient (1/3 of drugs present at begining of 8hr period remains). therefore right after second dose, which is when 1st 8hr period ends, you have (10 + 10/3)mL of drugs! you should change your response to 'it's right 99% sure' (well thats what i believe) and for 13b) ii), i believe that is the bearings question, i got 333 degrees for that (seeing that most other people have this and including me, i believe that is quite solid evidence that 333 degrees is correct)
 

stampede

doin it tuff
Joined
Nov 22, 2009
Messages
483
Gender
Undisclosed
HSC
2009
superannuation q

A60 = 500(1.003)^60 + 500(1.01)(1.003)^59 + ... + 500(1.01)^58(1.003)^2 + 500(1.01)^59(1.003)

This is a geometric series with the ratio being (1.01/1.003) as each term is changing by this ratio.

n (number of terms) = 60

a (initial value) = 500(1.003)^60

You get A60 = $44, 404.38
 

HSC_killer

Member
Joined
Oct 4, 2013
Messages
43
Gender
Undisclosed
HSC
N/A
with the cut off for a band 6, is the hsc mark counted or is it the raw marks obtained from that exam that will be counted as cutoof of band 6?
 

chrisdelinet

Member
Joined
May 6, 2014
Messages
44
Gender
Male
HSC
2014
instead of writting sin D i wrote sin (theta) :( .....am i going to lose all those marks???
hmm i believe you'll lose 1, hard to say because you did not specify the angle, depends if bostes wants to be cruel in a fairly easy test.
 

chrisdelinet

Member
Joined
May 6, 2014
Messages
44
Gender
Male
HSC
2014
superannuation q

A60 = 500(1.003)^60 + 500(1.01)(1.003)^59 + ... + 500(1.01)^58(1.003)^2 + 500(1.01)^59(1.003)

This is a geometric series with the ratio being (1.01/1.003) as each term is changing by this ratio.

n (number of terms) = 60

a (initial value) = 500(1.003)^60

You get A60 = $44, 404.38
sorry to pop your bubble, but the question asked for nearest dollar therefore A60 = $44, 404

you may think oh yeah pshhhh, but it's a heads up for people doing the exam in future years READ THE BLOODY QUESTION.
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top