MISTAKES Flashcards
MAKE SURE TO MARK MINIMUM MASIMUM AND ALL POINTS OF INTERSECTION WHEN LABELIMG
If something not divisible by something, then 4 x k + 1 2 or 3 is always not divisible, use common sense
Whenever giving example if something is have to RELATE BACK TO CONTEST
So like why stratified better, in this scanrio csn test all year group age types
For probability write EVEY COMBO OUT FIRST DONT JUMP
Make direct comparisons
Why is more children ! Lit because more babies so as more population who are young more children can be made
Stretch in y axis
NO STRETCH PARALLEL TO Y AXIS
2 arrow thing
If this means that, and I put it back other way is it tru
So anything less than 1 won’t mean ln y is 0
But ln y less than 0 does mean y is less than 1
And this means x is 2, x is 2 also means its0 so Yh
Set notation =
Bracket XER : notation close bracket and again if union
Okay so model from 100
A is 75 because 25 is the value when t is VERY LARGE, (as it gets very small), thus 25 is the ambient temperature ie the room temp
If it is a rate of decrease, then gotta be what sign
Negative
Make sure to read what variable itd asking for!
Remember when pulley drop
It hit plane, tension becomes 0, now into force is weight so accelrwtion is g, will slow down until it hits 0, then accelerate downwards again , and you want distance between it starting and slowing down to hit 0
SAYS SHOW INITAL SPEED IS 4 EVEN THO VELOICTY WAS -4 HOW DOES THIS SHOW SPEED
BECAUSE SPPEE IS JUST MAGNITUDE BBV
Prove thst something csn never be at somewhere els
Find an expression thst makes a square
As a result if that swaure is negative it csn’t be
KEEP SAME ACCELERATION HE HASNT CHSNGDD
Simplify things before proceeding
Makes it easier
Remmeber thst with ages the UPPER BOUND IS
The next value up!
If you want to say because less susceptible to outleirs, you have to be more specific
So say in the this category
Large data set how to compar e
It shows change ein eyes, so find the greatest difference
Why is there not an increases in the bus
The ratio is roughly the same as ratio for increases in people’s that’s why, so check this too!
Normal to curves at minimum points or maximum?
HERE GRSDIENT 0, SO NO GRSDIENT, SND ITS LIT JUST THE X LIME GOING THROUGH
TO SHOW VECTORS ARE PARALLEL, SCAM AND USE GRADIENRS
JUST USE COORDINATES AND GRSDIENTS BRUV PLEASE!
REMMEBER LOG CAN ONKY BE
ABIVE 0
MAKE SURE TO USE ARROWS TO SHOW DIRECTION VELOCITY! MAKE SURE ALL CONSISTENT
Improvements for model can be
- include more accurate value for g!
- (include variable resistance rather than constant as it chsnges with v)
-include friction at the pulley more accurate
Include dimension of the pulley so itsnot parallel to the table?
