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HOMEWORK THREAD


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Re: HOMEWORK THREAD

Sure' date=' do me math...

Simultaneous equations:

1) x(squared) - y(squared) = 0

3x + 2y = 5

2) xy=6

4x - 3y = 6

3) x(squared) + xy + y(squared) = 7

2x + y = 4[/quote']

As I said, easy :D

(1) x^2 - y^2 = 0

x^2 = y^2

Thus, |x|= |y|

3x + 2y = 5

Hence, (1)x=y=1 or (2) x=5 y=(-5)

(2) xy=6

x = 6/y

4x - 3y = 6

4(6/y) - 3y = 6

24/y - 3y = 6

24 - 3y^2 = 6y

3y^2 + 6y - 24 = 0

Let's solve the quadratic equation:

3y^2+6y-24 = 0

First we need to put the equation in the form:

ax^2 + bx + c = 0

For this, we arrange the terms from the highest exponent to the lowest:

3y^2+6y-24 = 0

We have:

a=3 b=6 c=-24

We can now apply the quadratic formula:

x = ( -b ± √(b²-4ac) ) / 2a

We find two solutions:

y=2 or y=-4

(3) x^2 + xy + y^2 = 7

(x+y)^2 = 7

x+y = Square root of 7 (+/-)

If x+y is positive,

2x + y = 4

x + 2.65 = 4

If x+y is negative,

2x + y = 4

x - 2.65 = 4

Hope these helps :) Maybe its wrong though as I rushed through it on the computer (not nice to my eyes) :D

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Re: HOMEWORK THREAD

As I said' date=' easy :D

(1) x^2 - y^2 = 0

x^2 = y^2

Thus, |x|= |y|

3x + 2y = 5

Hence, (1)x=y=1 or (2) x=5 y=(-5)

(2) xy=6

x = 6/y

4x - 3y = 6

4(6/y) - 3y = 6

24/y - 3y = 6

24 - 3y^2 = 6y

3y^2 + 6y - 24 = 0

Let's solve the quadratic equation:

3y^2+6y-24 = 0

First we need to put the equation in the form:

ax^2 + bx + c = 0

For this, we arrange the terms from the highest exponent to the lowest:

3y^2+6y-24 = 0

We have:

a=3 b=6 c=-24

We can now apply the quadratic formula:

x = ( -b ± √(b²-4ac) ) / 2a

We find two solutions:

y=2 or y=-4

(3) x^2 + xy + y^2 = 7

(x+y)^2 = 7

x+y = Square root of 7 (+/-)

If x+y is positive,

2x + y = 4

x + 2.65 = 4

If x+y is negative,

2x + y = 4

x - 2.65 = 4

Hope these helps :) Maybe its wrong though as I rushed through it on the computer (not nice to my eyes) :D[/quote']

Thanks!

Got 1 and 2 correct, 3 is wrong :P

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Re: HOMEWORK THREAD

A recurrence relation is defined by un+1 = pun + q, where -1

a) If u1 = 15 and u2 = 16, find the values of p and q.

B) Find the limit of this recurrence relation as n reaches infinity.

If you manage to answer this I also have another recurrence relation question, so if you are a bit of an RR expert please answer that too!

To be handed in tomorrow!

Please! :)

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Re: HOMEWORK THREAD

A recurrence relation is defined by un+1 = pun + q' date=' where -1

a) If u1 = 15 and u2 = 16, find the values of p and q.

B) Find the limit of this recurrence relation as n reaches infinity.

If you manage to answer this I also have another recurrence relation question, so if you are a bit of an RR expert please answer that too!

To be handed in tomorrow!

Please! :)

Well for the answer -

a) Say that again

B) What .........

Ok m8 that is a tad to hard for me m8 how about 2+2 thats a bit more my level. :P

I honestly have no idea m8 and anyway what year is this in because it seems really hard and i am in year 9 and i haven't done anything like this and I'm good at maths.

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Re: HOMEWORK THREAD

Well for the answer -

a) Say that again

B) What .........

Ok m8 that is a tad to hard for me m8 how about 2+2 thats a bit more my level. :P

I honestly have no idea m8 and anyway what year is this in because it seems really hard and i am in year 9 and i haven't done anything like this and I'm good at maths.

I would be in Year 13 and i dont bloody get it :D

and i was set 1 once! lol

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Re: HOMEWORK THREAD

Anyone who is doing GSCE PE' date=' im your man, A at GCSE and a A at A level ;) !!

History is also a goody for me, and biology :D[/quote']

I hated History.

I Don't Get Much Homework, Unlucky For Me!!!

Well Year 10 You Have To Go Along To Get Along.

Homework and Coursework Not A Problem For Me Well Essays Yes I Hate Them.

All My Lessons Are These's in Days Order

Monday: Maths, English, BV, And PE

Tuesday: ICT, Science and Double Catering

Wednesday: Double Catering, Science and Art Textiles (Only Boy In The Class).

Thursday: PE, Maths, English, ICT

Friday: LF (Learning Family), Science, Art Textiles (Only Boy In The Class) and English.

It's A Well Good Week Everyweek.

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Re: HOMEWORK THREAD

Anyone know anything about Napier's Bones. It has been killing the c**p out of me for two weeks already. I hate my Maths teacher. I am in year 7.

Its that abacus thing isnt it? Like times tables and division! Like 5 x 5 would be 2/5. Or something like that! Man, that was like 11 or 12 years ago!! Lol. There is a board involved. ha ha. erm..... All i remember is that is bloomin nasty and algebra was easier.

Oh, I am so glad at helping you. :D I think Navdeep is quite good at this.

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Re: HOMEWORK THREAD

Its that abacus thing isnt it? Like times tables and division! Like 5 x 5 would be 2/5. Or something like that! Man' date=' that was like 11 or 12 years ago!! Lol. There is a board involved. ha ha. erm..... All i remember is that is bloomin nasty and algebra was easier.

Oh, I am so glad at helping you. :D I think Navdeep is quite good at this.[/quote']

You should see my project. I am getting marked on this s**t anyways. It's already 4000 words! It's due tomorrow. I know all the stupid main facts about it but what about the interesting things. Also, how is it related to place value?

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Re: HOMEWORK THREAD

anyone Know what a :confused:MOODBOARD:confused: is

I imagine it it is D.T and if so then what it is, is a piece of paper that is covered in pictures about your subject.

Say u want to make a Arsenal clock in D.T what u have to do is get loads of picture about the thing u want to do it about, on this occasion Arsenal so u might get the Arsenal flag, some key players and the stadium.

Do u see what i mean?

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