VCE General & Further Maths Question Thread!

[YellowTongue]

How would I answer the attached financial maths question?

Thanks for your help 

[KKK]

How would I answer the attached financial maths question?

Thanks for your help 

Answer would just be E, since it's reducing 10 minutes each time " each following day". Constantly reducing at a fixed rate of 10 minutes each time.  Correct me if i'm wrong

[Hzahra12]

Anyone willing to help me with this
Annuity 2.8% compounded fortnightly for first 11 years,the balance $ 100 000 , then value drawback to 2.3%p.a compounded fornightly to final 11 years

[Coffee]

Can someone help me with the attached question? The answer is 144652 L but I got 142237.

[Cornrow Kenny]

Can someone help me with the attached question? The answer is 144652 L but I got 142237.

Your figure is after 6 days, the answer is 144652L.

[chenay0123]

Hi, can someone show me how to do this Geo & Trig question? Thanks

Calculate the shortest distance from Newcastle, Australia (latitude 33°S, longitude 153°E) to Mendoza, Argentina (latitude 33°S, longitude 72°W), correct to the nearest kilometre.

The answer is 15 080km.

[val265]

Hi can someone please help me with this question


How to work out the annual depreciation if they give the initial purchase price?

[clarke54321]

Hi can someone please help me with this question


How to work out the annual depreciation if they give the initial purchase price?

Hi,

Can you please give some more details of the question. Usually for these types of questions, I use the generic formula and fill in the parts that are known to me (ie. how often it compounds) and then use my CAS to solve the unknown value.

[plato]

Hi, can someone show me how to do this Geo & Trig question? Thanks
Calculate the shortest distance from Newcastle, Australia (latitude 33°S, longitude 153°E) to Mendoza, Argentina (latitude 33°S, longitude 72°W), correct to the nearest kilometre.
The answer is 15 080km.

First find the radius of the "parallel" (the line of latitude) that passes through both cities.
If the radius of the Earth is 6400, then the radius of this parallel  is 6400 sin(57) =  5367.5 km
The minimum angle at the Earth's axis between the two cities is 152 - 72 = 81 degrees.
The distance along the line of latitude between Newcastle and Mendoza is then:
81/360 x the circumference of a circle that has a radius of 5367.5km.  I calculate this as 7588km

This is not really the shortest distance. The shortest distance between the two cities is "as the crow flies" and is called the geodesic distance . This calculates to be about 7373 km with a complicated formula well beyond Further.

[val265]

Hi can someone please help me to work out part D

Hugo is a professional bike rider. The value of his bike will be depreciated over time using a flat-rate depreciation method. The graph below shows his bike’s initial purchase price and its value after each year for a period of 3 years.
What was the initial purchase price of the bike?  8000
What is the value of the annual depreciation?   1500

 d. The bike can also be depreciated using a unit-cost depreciation method. The value of the bike is reduced by $0.25 for every kilometre it travels. After 2 years, the total depreciation will be the same as the flat-rate depreciation as described above.
How many kilometres did the bike travel in the 2-year period?


If anyone has the online cambridge textbook it is Chapter 10 review Question 1 part d in extended respone

I would really appreciate the help

[clarke54321]

Hi all,

Is there a correct number of cuts you can apportion to a network? What I mean is, can VCAA take marks off if you have done, say 6 cuts, when there were supposed to be 5 made?

Sorry, I hope this makes some sense. 

[Complex]

Hi all,

Is there a correct number of cuts you can apportion to a network? What I mean is, can VCAA take marks off if you have done, say 6 cuts, when there were supposed to be 5 made?

Sorry, I hope this makes some sense. 

Yeah there always is. They will take marks off if u get it wrong by one, they r stingy like that

[clarke54321]

Hi everyone,

Does anyone have advice on how to work out these types of questions with efficiency? Or networks in general?

Thank-you in advance 

[Complex]

Hi everyone,

Does anyone have advice on how to work out these types of questions with efficiency? Or networks in general?

Thank-you in advance 

Generally for these questions its best to not use cuts but just to find the maximum flow (minimum inflow). Cuts are innefective because they get messy and sometimes its easy to just simply miss the minimum cut.

Take this answer with some salt because i havent considered further since i left the exam room for it.

I think...

Source 1 > Sink 1 = 19km (The fastest way there is 13+6)
Source 2> Sink 2 = 14km (8+6)

Are those the right answers?

If you need Source 1 > sink 2 = 34km (15+12+9+1+6)
And Source 2 > Sink 1 = 35km (14+7+12+2)

[clarke54321]

Hi Everyone,

Is it possible for there to be two critical paths?

For example, with the attached image, there could be a critical path of K-N-Q-T and K-R-T.

Thanks in advance