Mathematics Extension 1 Predictions/Thoughts (2 Viewers)

[gunnerfan99]

View attachment 40827
what are these 2?

 

[cantdefeatben]

wait I meant a)iii) whoops

i just did dv/dt = rate in - rate out and let rate in = 0 and found dh/dt from there and basically did the same thing as part ii)

 

[Hudz777]

i got c bc if u draw it and then draw the inv function it looks like it crosses x = 1 3 times. for the last one i guessed c or d i dont remember

yeah thats what I got
and guessed C for 10

 

[WeiWeiMan]

View attachment 40827
what are these 2?

I got DB but I’m prob wrong

 

[carrotsss]

i just did dv/dt = rate in - rate out and let rate in = 0 and found dh/dt from there and basically did the same thing as part ii)

I’m p sure I had the right method I just made some mistake along the way which stuffed me

 

[gunnerfan99]

View attachment 40827
what are these 2?

D and A I think but haven’t looked properly yet

 

[Aminza21]

C, A

 

[scaryshark09]

carrots what did you get Q10 MC?

 

[Engineer_192931]

I did D and D but completely guessed 10

 

[faradaysfriend]

Is q9 not D?

 

[carrotsss]

carrots what did you get Q10 MC?

B I think

 

[carrotsss]

Is q9 not D?

yeah it’s D

 

[WeiWeiMan]

I did D and D but completely guessed 10

Thinking about it now, I think 10 is A but I put B
It has to be 2 sets of two students and one lonely student so I just put 5!3! But I think it’s 4!3! But idk

 

[synthesisFR]

Ong I literally was gonna do rate in - rate out but I got bogged down by all the equations ughhh im gonna kms I literally did a question like that yesterday ughh

 

[carrotsss]

B I think

Wait I might’ve said A I honestly don’t rememebr

 

[synthesisFR]

Ong I literally was gonna do rate in - rate out but I got bogged down by all the equations ughhh im gonna kms I literally did a question like that yesterday ughh

@WeiWeiMan stop laughing KYs

 

[doogster05]

Does anyone have the scanned paper or solutions?

 

[carrotsss]

Does anyone have the scanned paper or solutions?

go a few pages back

 

[Luukas.2]

Is q9 not D?

Q9 is definitely D

 

[doogster05]

go a few pages back

thanks i found it