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For part C) The book has given the answer of: = 7! x 4! + 8! x 3! - 5! x 4! x 3! = 345 600 I think this is incorrect, according to my working, the answer is Working: Probability of potted roses adjacent = 7! x 4! (Book gets it right) + Probability of azaleas adjacent...

Of a right-angled triangle with side lengths of 6 and 8 cm, what is the raidus of the largest circle that can fit inside of it? thanks in advance

What where you guys averaging in year 9 and then in year 12? Just curious to see how hard it becomes

Alright, so the AMC is coming up soon and I would like some help on the number theory and geometry It's questions like these that I just don't understand The Fibonacci numbers are F1=1, F2=1, F3=2, F4=3, F5=5, F6=8, F7=13, …… where the first two are both equal to 1, and from then on, each one...