# Maths help...Watch

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#1
Hi all,

Once again thanks for the comments and help regards to my last post. So I've done more questions (you've got to practise don't you?) and, of course I was a bit stuck on a few. Some of them require pictures but others need I'll write below:

1. Simplify fully 6(x-5)^2
----------------------
3(x-5)(x+4)

2. Factorise (x+1)^2 + 4(x+1)

3. N is an integer S=1/2 n(n+1) prove that 8S+1 is an odd square number.

4. Robin is firing arrows at a target. The probability that Hewitt the target on his xth attempt is x+2
-------
x + 3

For example probability (hit on his 5th attempt) = 7/8

Work out the probability that he hits the target with both his 1st and 2nd attempts.

B. Work out the probability that he hits thea target exactly once on his first two attempts.

And the rest I'll have to take pictures of! Thanks in advance!
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#2
the question is included in the picture I hope!

6. The diagram shows the circle centre work out the size of angle Y. And here's the picture - . Please ignore the scribbles

7. The question is in the picture.

8. Please ignore the scribbles on the question in the picture . Whatever is written on the diagram of the side the diagram is incorrect please do not follow that

9.

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#3

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4 years ago
#4
Have you tried looking at the mark scheme for the paper? It'll show you the exact method marks that you need
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#5
(Original post by Its_Tito)
Have you tried looking at the mark scheme for the paper? It'll show you the exact method marks that you need
I tried not to! But I'll have a look thanks

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4 years ago
#6
(Original post by maths_geek)
I tried not to! But I'll have a look thanks

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If you think about it, it's just revision It'll help in the long run.

Good Luck!
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#7
Thanks so much for the help (PMs) just

Q10- work out the minimum height of water in the tank, marked h, give your answer to 1dp. This is 5 marks thanks!!

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