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Same thing, but I feel more comfortable using combinations and then permuting them.

smart

Ah crud, forgot to treat the two boys in the front row as two possibilities. 2880 x 2 = 5760. Revised: 1. Two boys want to sit in the front row, so place them there - choose two seats from the available four so they can sit there: C(4,2) ways 2. Place the first of the two boys in one of the...

What's your working? How did you get 2!3!4!5!? As I always say, do these logically: 1. Two boys want to sit in the front row, so place them there - choose two seats from the available four so they can sit there: C(4,2) ways 2. One girl wants to sit in the back row, so place her there - choose...

Well, what's your working? $2000 at 9% per year compound interest, compounded monthly. That is, (9/12)% = 0.75% per month. 6 years is 72 months. So in 6 years, the compounding will make the $2000 worth: 2000(1+0.0075)^{72} = 3425.11 We put in $2000 originally, so we subtract the $2000 to...

$3425.11 isn't the interest earned, that's just the amount the $2000 grows to after 6 years. The interest earned would be $3425.11 - $2000 = $1425.11. Right?

^ Yeah that. Take these things logically. Draw a diagram - like for me, I like tree diagrams.

Umm, isn't the answer 1 - (2/5)^3 ? or is my brain not working again

Yes, English is compulsory at all Australian universities because your lectures and tutors will lecture and tutor in English, and you will be expected to converse back and write answers in English for university assessments - unless you're in a language class. And if you want to get into med...

Try a tree diagram?

Is that... Jeff Bridges?

You want to trade Boring Blue for Yucky Yellow or something? m8

But... but... blue's a colour. trollface.jpg

Well, a 16 year old with no experience is pretty much relegated to menial jobs like in fast food or in retail. But if you need references, get one from your school, maybe. Plus, if you're bored... umm, you should go study, perhaps?

Reminds me of those Facebook groups which go something like "we have calculators and computers - why can't maths solve its own problems?" But then you have to remember to use calculators and computers to do maths, you need the right inputs so it can do the work for you.

Should've posted it in the General Maths forum, some of the kids there would've been like "OMG IT'S TRUE. WHAT'S GOING ON?!?!?!?!?!" Some. Not all. Some.

... I sent you a PM.

No it's not.

ok

its called counter-trolling