The Impossible Question

Since no one could help me on the last question, which was tons easier than this one. I shall post this one:



So am I going crazy, or is my teacher go crazy, or am I just wrong?

Besides this being the hardest question I ever got in my life, I solved it by algebra and got x= _/12.5 (In the radical) and x= - _/12.5 in the radical...

So is this possible to solve algebrilacly?

are you solving for x or y?

It doesn't matter, since I will need to plug it in the equation later to get the other coordinate...

I solved for x though (which got me + and - _/12.5)

I also graphed them...and it seems to fit the radical 12.5...which is about 3.5

let's see:
I graphed them on my calculator and it said that the solution is 3,4.
It works in the equations. so hey, I solved it. Now you can play with your algebraic skills and see if you can get to the answer.

Sayf make your own topic ...or at least wait till I'm done with mine

Hassan: When I graphed it I also got (3,4) and (-3,-4) {You forgot the negative side}

When I did it algebrically I got the radical 12.5 (Positive and negative) which equals 3.53 ...so it's .5 off....does that matter?

Ahmed count yourself lucky i do harder ones of those everyday =(

Then please solve mines.

i don't got a calculator so no

Well you need to do it by hand Pried.

that is not impossible to solve, but i will take a long to do it cause you have to make a table and plug in no 'til you got the same no. Ah, I'm too lazy for it. Good Luck to u Ahmed hehe

No....I want it solved algebrically....I'll give someone a cookie if they do...

Does anyone know if you're supposed to replace all the x's with 3 in both functions if you had to perfrom (f-g)(3)

Stay on topic Sayf

its an impossible question

I guess graphing is the way to do it...is algebraic solution required?

Hassan, my question?

your's read of f of g. I thunk you take the formula for g and plug it in f, making the x value 3, right?

no, its f minus g ... not f of g .. if it was f of g, then I would have just subsistuted 3 for g and yada yada ... I mean I know that

then I think you can solve them separately ans subtract the two answers: solve for f, solve for g, and then subtract them!. Hope this works.

Hassan wrote:I guess graphing is the way to do it...is algebraic solution required?

Yes please

aaargh....

I canot do it now, later perhaps

Well before Monday please

anyone know how to balance:

C12H22O11 + H2O -> C2H5OH + CO2

?

its kinda hard

nevermind, u just put the coefficient 4 before c2h5oh and co2 ... so it's

C12H22O11 + H2O -> 4C2H5OH + 4CO2

that was easy (trademarked by Staples)