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  1. C

    help with finance

    The "charged monthly" is the rate at which interest in being charged. So since the rate is 15% p.a. 15% is the yearly rate. You need to divide by 12 to get the monthly rate you are being charged. Annual meaning yearly. Note p.a is per annum meaning per a year. Installment is referring to the...
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    what even is this q

    So long you know the definitions you understand question you should be able to do it. q a) look like a parabola c) something like (x+3)x(x-3) but with turning point at x=+/-1
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    HD Sample Portfolio

    What is MDP? Thank you Never seen engineering report like this before. The graphics were really good.
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    Is this part of our syllabus?

    @ specificagent it look like Jimmy has answered Just couple points - Make sure to remember the definition of conditional probability - What is the relationship between logic and set theory operators - When do you use bayes theorem over the definition of conditional probability
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    Rounding in the HSC

    What I like to do in these scenarios is use wavy equal signs. This way it is understood rounding is occuring. General I think the standard is round to two decimal points or 2 significant figures but there are no hard rules to my knowledge. So in 21 a) you could have written T = <some math...
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    Double degrees

    1. Both degrees will be awarded 2. No set rules
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    How hard is extension 1 maths if it's self taught?

    Is this for uni? You may find some uni books have yr 12 content. So that might be worth looking into. Somes courses may require specific content from textbooks so you may not need all the content from 3 unit. So you may not need understand mathematical induction though you may come across it.
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    Modern History Excel Textbook

    I think Ken Webb as mention by ahri is good
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    help with maths!

    Yes thank you. I think might be missing the one from two families
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    help with maths!

    c) The mean number of children per family = Total_num_children / Total_num_families = (0*k + 1*2 + 2*9 + 3*6 + 4*7) / (k+1+2+6+7) =2 # Note we just need to make k the subject => (2+18+18+28) = (k+1+2+9+6+7)*2 => k = (2+18+18+28)/2 -1 -2 - 9 - 6 -7 => k = 8 Edit forget subtract 9
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    help with maths!

    MODE The 0-8 is correct however remember k is positive so it would be 1-8 MEDIAN We need to find the middle value. The middle value is given by (k + 2 + 9 + 6 + 7)/2 Let just be creative for bit. If k = 1 Then middle_value = 12.5 meaning the median is 2.5 if k = 2 => middle_value = 13...
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    help with maths!

    So do you know how the mean, median and mode are calculated? Just give it a ago see what equations you get.
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    help

    This might help https://www.mathemania.com/lesson/non-linear-diophantine-equations/
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    help

    Real maths and competition maths are different.
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    Can I get some help with questions?

    You just need to take look at the graph. If you know what f'(x) (i.e. f prime of x ) it should make sense. We can see clearly at [4, 6], f'(x) = -3.
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    Can I get some help with questions?

    The m = -3 comes from graph the being f'(x). The working weirdly set out. Not sure why they just didn't integrate from 0-6. And then equate f(6).
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    Modern History Excel Textbook

    I am not sure if the excel textbooks are suitable for history due to large variety of topics content is not cover indepth but I have done history from quite a while back so I may be mistaken. Have you consider any other resources.
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    Maths finance help

    I won't give the full answer. But 6.75% per annum / 12 = 0.5625% = 0.005625 So A1 = 159000*(1+ 0.005625) - 1415 For d) make the loan payment amount the subject. So replace 1415 with loan_payment_amount in d)
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    Comp Sci with General Maths?

    Mainly in Machine learning engineer, data scientist or data analyst
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    Comp Sci with General Maths?

    That is UNSW, UTS has more flexibility
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