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    Length Dilation and Projectile Motion Questions

    Hey so this is from a past paper and I just can't figure out how to do it. 19) The rest length of a train is 200m and the rest length of a railway platform is 160m. The train rushes past the platform so fast that , when observed in the patform's frame of reference, the train and the platform...
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    How to learn Parametrics from start to end?

    Hey guys, i'm having immense issues with learning parametrics for 3u maths. The teacher we had when learning the subject was no help and brushed past the topic in a few days. I can't seem to do any questions in the textbook and struggling with the basics. Is there any links to a website that...
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    Absolute inequalities with both on one side

    Need help solving this properly |4x-3| + |x-1| < 11 I would take 4 cases where its positive positive, positive negative, negative positive, negative negative for each absolute value. However i think i've made a mistake in my working. Also unsure if i am to test these values to see if...
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    PERMS AND COMBS difficult question (IMO)

    Hey guys, need help trying to solve this perms and combs question where: A total of 5 marbles is selected at random from 4 differently coloured jars. Ear jar contains ten marbles, each being the same colour as the jar it is in and numbered from 1 to 10. i) What is the probability that of...
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    How would I answer this short response question?

    "Analyse the need for law reform" What I'm thinking of is to first define what law reform is, then describe reasons for why law reform is necessary. But would I have to include evidence? It's a short response question so probably only worth around 4 marks.
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