Discrete Models
What does LST stand for?
Latest Starting Time
Lateesha invests $4,300 with Bank SA for 3 years at 2.8% pa compounded monthly. How much interest does she earn?
No additional repayments
Interest rate stays same
No fees
etc.
What is the general form of an exponential equation that we have studied?
y = a x bx
What is the biggest kangaroo in Australia?
A. Western Grey
B. Eastern Grey
C. Red
D. Northern
C. Red
What is the rule for slack time?
LST - EST
What is the formulae for tax payable on an investment?
Tax payable = Marginal tax rate x Interest earnt
What are generally more reliable, extrapolations or interpolations?
Interpolations
Assuming you spend 200 days at school per year, how many days at school has a typical South Australian year 12 student completed when they graduate high school?
2600
What is the first step when using the Hungarian Algorithm to maximise a solution?
Find the maximum number on the array, and subtract all numbers from that number.
What is the formulae for interest payable for an interest only loan?
A general line of best fit is y = ax+b.
Explain how the a value (slope) can be interpreted in this scenario:
The predicted grade (Y %) for a year 12 student who studies x hours for their exam can be modelled by:
y = 2.44x + 32
For every hour of study, their grade would increase by 2.44%.
What is the capital city of Singapore?
Singapore
Many solutions...
The longest path through a network.
Where EST = LST
The path that causes the minimum completion time to be found.
What is the formulae for the total cost of a sinking fund?
Total deposited in sinking fund + total interest payable
When are extrapolations reliable?
When there is a high r2 and it is just outside the boundaries.
What game shows has Mr Worley appeared on?
The Chase
Hotseat Millionaire
If a task that is not on the critical path is delayed, does it affect the overall minimum completion time?
MAYBE - we are not sure. If the delay is longer than the slack time then YES it will delay the overall event.
(NO is not a correct response!)
What you type into your calculator for this?
Perry currently has $4,000 in her superannuation account when she starts work at age 23 at the State Government on $75,000 pa. Her employer contributes 9.5% of her salary per quarter into her superannuation account which compounds quarterly at 8.4%. How much will her superannuation balance be when she retires at age 67?
n=(67-23) x 4
I = 8.4
PV = -4000
PMT = (75000 x 0.095 x (1/4))
FV = ?
P/Y=C/Y=4
Coca-Cola bottles are normally distributed with a mean of 601mL and standard deviation of 0.4mL. Pepsi Max bottles are also normally distributed with a mean of 602mL and a standard deviation of 0.8mL.
Describe the Pepsi Max graph when compared to the Coca-Cola graph. (3 key aspects)
Flatter, Lower, further to the right
How many amazing (yes you are all amazing) Year 12 students has Mr Worley been able to teach General Maths in 2018?
25