Answers to General Maths Exam (4 Viewers)

[jcsmith]

the 3.9mL/min is using the whole drink (375mL) as a beginning measurement. The measurement you've used is the alcohol/min measurement.

not sure exactly what they wanted....i did the 3.9mL/min measurement...

That's what I got.

Thought I was sorta outta it by then.

HAd to made sure yopu converted it to mL/min

 

[michael1990]

You use the annuties formula.


N=M [(1+r)^n-1]
r(1+r)

I think that's right.

Or close to it.

Yes that is correct.
It took me a few times to actually do that question, but i ended up proving it.

 

[jcsmith]

Yes that is correct.
It took me a few times to actually do that question, but i ended up proving it.

That sorta question messed me up in the trials.. so made sure I was ready for it!

Any idea about that cheese? Stupid curvy cheese.

 

[UNZPME]

QUESTION 28

(b) (i) A = h/3[8a + 2b] = 2h/3[4a + b]
(ii) Decreases by 8 m[/quote]


i dont get QUESTION 28
(b) (i) A = h/3[8a + 2b] = 2h/3[4a + b]
(ii) Decreases by 8 m

plz explian
eny1
i didnt xpect the exam 2 be lik this lol evn thou i been practicing my ass offff oh wel hope i get in the 80s

 

[michael1990]

That sorta question messed me up in the trials.. so made sure I was ready for it!

Any idea about that cheese? Stupid curvy cheese.

The first part of the cheese question, (what are the dimensions) i had no idea, i got 21 for the breadth and that was it.

 

[michael1990]

QUESTION 28

(b) (i) A = h/3[8a + 2b] = 2h/3[4a + b]
(ii) Decreases by 8 m

i dont get QUESTION 28
(b) (i) A = h/3[8a + 2b] = 2h/3[4a + b]
(ii) Decreases by 8 m

plz explian
eny1
i didnt xpect the exam 2 be lik this lol evn thou i been practicing my ass offff oh wel hope i get in the 80s[/quote]

Sorry dude, i don't have the exact question here otherwise i would post up my answer.

 

[jcsmith]

Oh sweet. Me too. and I think - 40 for the length. and the height was 15 - cause the 15cm was the radius. I acutally worked it out and got 14 and added 1cm to allow for the curve. A bit dodgey - but it worked out!

 

[jcsmith]

I just used the simpson's formula - simplfied it by substituting the letters in and simplfying it.

I got: A=2 h/3 (4a+b)

It was the same on both sides so you only needed one formula and then double it.

 

[michael1990]

I just used the simpson's formula - simplfied it by substituting the letters in and simplfying it.

I got: A=2 h/3 (4a+b)

It was the same on both sides so you only needed one formula and then double it.

Yep.
Then i said a=2 and worked it out as an equation.
b worked out to be 8

 

[jcsmith]

I couldn't get the next bit.. I had to go back and do the one's I'd left out with 25mmins to go.

How'd you do the last one?

 

[UNZPME]

Yep.
Then i said a=2 and worked it out as an equation.
b worked out to be 8

like i understand how to do the rest i just dont get how you get the 8..plz help

 

[michael1990]

I couldn't get the next bit.. I had to go back and do the one's I'd left out with 25mmins to go.

How'd you do the last one?

Which one?
Remind me of the question, i don't have the paper in front of me sorry.

 

[gina1990]

ahhh i just realised i made the stupidest little mistake for 27 a) iii) i did alll the working out right but i wrote Tuesday instead of Wednesday.

 

[michael1990]

like i understand how to do the rest i just dont get how you get the 8..plz help

I made a=2, then substituted into the equation from part i)

 

[jcsmith]

I made a=2, then substituted into the equation from part i)

Oh. I get it now. Thanks.


And I wrote Tuesday too!

Didn't you have to add the 9h 8m to 10am? It would have still been Tuesday then.

 

[jamesdean2120]

umm, for the time i had was 7am on wednesday, cause it said "ignore time zones"

 

[NEVAGIVEUP]

Am i the only one that did not get a difference of 8?

 

[michael1990]

Oh. I get it now. Thanks.


And I wrote Tuesday too!

Didn't you have to add the 9h 8m to 10am? It would have still been Tuesday then.

I had 9 hours 10minutes.
And i had 7am on wednesday.
Cause it said ignore time zones.

 

[UNZPME]

I made a=2, then substituted into the equation from part i)

sorry but can u explian it all ova showin examples plzz lik im s0o totallly confusedddd srrry mate

 

[Kiim2507]

Zomg for the millionth time
Ignore time zones means ignore them in real life
They have it written no every past paper and trial paper