The Mathematics thread

[Prince Rai]

Mathematics is very relevant in our world. Its a system of measurement when you break it down. Without it, most technology is feeble. Do we need it as humans to survive? No, but without it we are still hunter gatherer tribes.

word, maths is definitely a crucial tool in our everyday life. If numbers seized for a minute there would be chaos. if equations got mixed up etc, again there would be chaos, ie.stock markets, hospitals etc etc.

but see, mathematics seems 1+1=2 but maths requires more thought than mere reliance on it. the fact that we would have chaos in the absence of mathematics shows how vulnerable we are with a topic still so open.

earlier posts already suggested clearly why or how maths is limited to a certain degree.

[Slippy The Pimp]

0/9 = 0

9/0 = undefined

Who here can say why?

[IrOnMaN]

6x+10=28
-10=-10

6x = 18
6x 6x

x=3


The answer is 3

[Slippy The Pimp]

Mathematics is very relevant in our world. Its a system of measurement when you break it down. Without it, most technology is feeble. Do we need it as humans to survive? No, but without it we are still hunter gatherer tribes.

You say it like it's a bad thing.

For the record, many hunting and gathering tribes relied heavily on mathematics in there everyday walk of life.

I'll be hitting this thread up now that i'm back in my Algebra courses. I might need some online tutoring from some one knowledgable in complex Algebraic expressions and graphing.

[Slippy The Pimp]

6x+10=28

-10=-10

6x = 18
6x 6x

x=3


The answer is 3

Your end answer is correct, but you process is messed up. You don't carry that x vairable. That'll fuck you up on more complicated equations.

according to what you did:

6x+10=28

-10=-10

6x = 18
6x 6x

you would get:

6x=18
6x 6x

or

1=18/6x

[rainbow]

^ he means minus 10 from each side.

then divide each side by 6.

how is that wrong?

[Slippy The Pimp]

^ he means minus 10 from each side.

then divide each side by 6.

how is that wrong?

I know what he meant. I was just correcting a mistake in his method.

He divided both sides by 6x. He should have divided both sides by just 6 to get X by it's self.

That's how you come to x=3

[IrOnMaN]

I know what he meant. I was just correcting a mistake in his method.

He divided both sides by 6x. He should have divided both sides by just 6 to get X by it's self.

That's how you come to x=3

I know. I always do that when I encounter a problem like that. I know what x is. Here's another one.

2(x+4)=6(x+8)

2x+8=6x+48

2x+8=6x-6x+48

6x+2x+8=48

8x+8=48
-8=-8
8x = 40
8

x=5

[Slippy The Pimp]

I know. I always do that when I encounter a problem like that. I know what x is. Here's another one.

2(x+4)=6(x+8)

2x+8=6x+48

2x+8=6x-6x+48

6x+2x+8=48

8x+8=48
-8=-8
8x = 40
8

x=5

wrong.

check your answer next time.

2(5+4)=6(5+8)

2(9)=6(13)

18=78 incorrect

[Slippy The Pimp]

I know. I always do that when I encounter a problem like that. I know what x is. Here's another one.

2(x+4)=6(x+8)

2x+8=6x+48

2x+8=6x-6x+48

6x+2x+8=48

8x+8=48
-8=-8
8x = 40
8

x=5

Here is one of the correct ways to answer this problem:

2(x+4)=6(x+8)

2x+8=6x+48

2x-2x+8=6x-2x+48

8=4x + 48

8-48=4x+48-48

-40=4x
4 4

-10=x

Check.

[Prolifical ENG]

0/9 = 0

9/0 = undefined

Who here can say why?

Algebraically it is harder to explain and requires abstract algebra.

If you have minimum knowledge of calculus, it is easy. Think of the graph of the function y=1/x. Now you know that as x approaches 0, y approaches infinity. If 1/0 was defined (meaning x can eventually be zero) then infinity would ironically be finite.

For an elementary example, say you have 0 cookies to be divided amongst 9 people. That means that each person gets 0 cookies. If 0 people get 9 cookies then you can't define the question since there is no people to divide the cookies amongst in the first place (what kinda question is that dividing cookies to people? Not worth while)

[IrOnMaN]

Here is one of the correct ways to answer this problem:

2(x+4)=6(x+8)

2x+8=6x+48

2x-2x+8=6x-2x+48

8=4x + 48

8-48=4x+48-48

-40=4x
4 4

-10=x

Check.

Hmmm...Are you sure because from what I've learned, you always cancel out what's on the right side, not the left. I was taught to do that method in high school and in college.

[Slippy The Pimp]

Algebraically it is harder to explain and requires abstract algebra.

If you have minimum knowledge of calculus, it is easy. Think of the graph of the function y=1/x. Now you know that as x approaches 0, y approaches infinity. If 1/0 was defined (meaning x can eventually be zero) then infinity would ironically be finite.

For an elementary example, say you have 0 cookies to be divided amongst 9 people. That means that each person gets 0 cookies. If 0 people get 9 cookies then you can't define the question since there is no people to divide the cookies amongst in the first place (what kinda question is that? Not worth while)

or you can just break it down like this. Check the following equations:

0/9= 0 then 0 X 9= 0

9/0= 0 then 0 X 0 = 9 wich is incorrect.

[Slippy The Pimp]

Hmmm...Are you sure because from what I've learned, you always cancel out what's on the right side, not the left. I was taught to do that method in high school and in college.

check the answer. Replace the x's with -10.

[Prolifical ENG]

ok here.....

I know. I always do that when I encounter a problem like that. I know what x is. Here's another one.

2(x+4)=6(x+8)

2x+8=6x+48

2x-6x+8=48

-4x=48-8
-4x=40
-x=10
x=-10