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Mathematics Advanced Predictions/Thoughts (1 Viewer)

tywebb

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Woo's video seems to not be on youtube anymore. Maybe he will make a different version later.
 
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user08920

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yall for the koalas question did u have to round down or up? I thought since it asked for expected koalas and the answer came to 36.72 u rounded up?
no you round down because the question asked how many koalas weigh more than 11.93kg. so there were 36 whole koalas above 11.93 and then you don't consider the .72 because that's not a whole koala if you get what i'm saying. normally, yes you would round up, but in this case you wouldn't because of the question. hope that helps.
 
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i did the rough mark and i probably got about a 60% on that exam, my biggest mistakes was trying to find the area bounded by the two curves and y axis and i only just realised i didnt have to make x the subject but could of just put the boundaries of the x value instead of find the y intercept and integrating the curves for x equals. so probably got 1/3 for that as i bs the stuff out of that question :C,
so what are my chances of a band 4??
 

carrotsss

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i did the rough mark and i probably got about a 60% on that exam, my biggest mistakes was trying to find the area bounded by the two curves and y axis and i only just realised i didnt have to make x the subject but could of just put the boundaries of the x value instead of find the y intercept and integrating the curves for x equals. so probably got 1/3 for that as i bs the stuff out of that question :C,
so what are my chances of a band 4??
100%

 
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And for the question 30

Did anyone just guess when Cos(x)=sin(x) in there calculator i found 45 degrees converted it to radians got pi/4 then added 4pi/4 to it
 

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grr I put C as well woulda been ez 95 raw if I never put C 😡😡
say u have an equation like this as f(x):
[(x)^3 - (x)^2]^2
and then obv f(-x) would be
[(-x)^3 - (-x)^2]^2
no matter what number u sub in they'll be different 😭😭
rip 🪦
but it just says which one will always be positive

Edit: just realized how math worsk 3x3=9 oddxodd=odd evenxeven=even evenxodd=even i was thinking of (-x-=+) (and +x+=+) there goes another mark
 
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