[TIPS] - Struggle to do methods 3/4

[simon88]

Hey! I've been struggling with my past two Methods 1/2 SACS (<50%) and I really need to do Methods 3/4 to get the uni course I want. Does anyone know what you need to do to get a S for the unit, and how I can get methods 3/4 if im not doing to well? Thanks!

[Aaron]

Does anyone know what you need to do to get a S for the unit

The answer to this question is different for each school - as assessment and examinations for Units 1 and 2 are the school's responsibility. You'll need to check specifically with them to see what is required. Usually each school has a policy publically available for viewing that outlines the requirements.

[rosemaria20]

Hi Guys,
Can anyone  help me with this question?
T=Acos(pi/12 (t+8))+c where T is temperature in degrees Celsius and t is the number of hours since midnight. The minimum temperature occurred at 4 am, when it was 20 degrees and the maximum temperature at 4pm when temperature was 30 degrees.
- Show that A=9 and c =21
- Sketch T(t) 0<t<24, showing min and max points and all points of intersection w/ axes
- How long was the temperature atleast 20 degrees
- Determine the rate at which the temperature was changing at 10 am
- Find the rate of change in temperature between 5 am and 5pm