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Current time: 23rd June 2017, 23:43

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Dividing by variable when solving algebraic equation
#21
RE: Dividing by variable when solving algebraic equation
[Image: ec9df287df0bbf49eecf06d81d78fb87.jpg]

Hehe

Keep up the good work everyone Thumb up
"Leave it to me to find a way to be,
Consider me a satellite forever orbiting,
I knew the rules but the rules did not know me, guaranteed." - Eddie Vedder
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#22
RE: Dividing by variable when solving algebraic equation
(26th October 2016, 02:31)FallentoReason Wrote:
(26th October 2016, 02:16)Alex K Wrote: And here I go with an imaginary heart attack.

Would it kill you if I said I have an engineering degree...? *gulp!*

In my defence, I study architecture at the moment. Maybe maths just wasn't meant to be  Tongue

"Hmm I could have sworn that I only planned this house with one front door... I wonder what happened!"
The fool hath said in his heart, There is a God. They are corrupt, they have done abominable works, there is none that doeth good.
Psalm 14, KJV revised edition

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#23
RE: Dividing by variable when solving algebraic equation
(26th October 2016, 02:40)Alex K Wrote:
(26th October 2016, 02:31)FallentoReason Wrote: Would it kill you if I said I have an engineering degree...? *gulp!*

In my defence, I study architecture at the moment. Maybe maths just wasn't meant to be  Tongue

"Hmm I could have sworn that I only planned this house with one front door... I wonder what happened!"

Wow! Lightbulb moment.

Imaginary doors.


/architect
"It is the mark of an educated mind to be able to entertain a thought without accepting it" ~ Aristotle
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#24
RE: Dividing by variable when solving algebraic equation
I'm teaching my 11th graders quadratic functions right now, they are not amused. Question: you have 100 meters of fence to fence in a rectangular area, but one of the sides doesn't need a fence because there's a wall already. So the question is, how long and wide do you choose your corral to maximize the area.
The fool hath said in his heart, There is a God. They are corrupt, they have done abominable works, there is none that doeth good.
Psalm 14, KJV revised edition

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#25
RE: Dividing by variable when solving algebraic equation
Ooh, ooh, I know!


Feel free to send me a private message.
Please visit my website here! It's got lots of information about atheism/theism and support for new atheists.

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#26
RE: Dividing by variable when solving algebraic equation
(26th October 2016, 02:48)Alex K Wrote: I'm teaching my 11th graders quadratic functions  right now, they are not amused.  Question: you have 100 meters of fence to fence in a rectangular area, but one of the sides doesn't need a fence because there's a wall already. So the question is, how long and wide do you choose your corral to maximize the area.

Hey! That's not fair. I've done my fair share of maths. You're not allowed to slip me that question  Tongue

Then again, I only got 50% in my own example.
"It is the mark of an educated mind to be able to entertain a thought without accepting it" ~ Aristotle
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#27
RE: Dividing by variable when solving algebraic equation
(26th October 2016, 02:59)robvalue Wrote: Ooh, ooh, I know!



YOU WIN THIS TIME, ROBERTO
The fool hath said in his heart, There is a God. They are corrupt, they have done abominable works, there is none that doeth good.
Psalm 14, KJV revised edition

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#28
RE: Dividing by variable when solving algebraic equation
Tongue

If I don't win, the game is rigged.

In case it's not obvious, I love maths Big Grin Oh yeah. Always have. I asked for homework at my first school.
Feel free to send me a private message.
Please visit my website here! It's got lots of information about atheism/theism and support for new atheists.

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#29
RE: Dividing by variable when solving algebraic equation
I like questions like that though, because they show a simple application of maths to a real situation where guesswork would only get you so far.

For those that are interested, this is how you get the answer:


Feel free to send me a private message.
Please visit my website here! It's got lots of information about atheism/theism and support for new atheists.

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Quickstart guide to the forum
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#30
RE: Dividing by variable when solving algebraic equation
(26th October 2016, 01:52)robvalue Wrote:
(25th October 2016, 21:58)FallentoReason Wrote: Any equation where the constant is positive will do.

E.g. x^2 + 4

Let's test where it intersects the x axis:

x^2 + 4 = 0

=> x^2 = -4

therefore, x = 2i

Also x = -2i

SEE WHAT I MEAN?!

are you OK, Rob o_o
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