Mathematics - 4 July 2006

For which value of k does the following pair of equations give a unique solution for x such that solution is positive
x^2-y^2=0
(x-k)^2 + y^2=1
(a) 2
(b) 0
(c) square root of 2
(d) -square root of 2

2006-07-04 17:15:54 · 4 answers · asked by Rohit C 3

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i need a conversion table or list for thermodynamics u know for lengths velocity and things like those please anyone?

2006-07-04 16:51:12 · 1 answers · asked by Anonymous

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(0.13-1.39)/1.39 = -91%

This figure seems too small--is it correct?

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Think of the best Disney character you love or who do you think is good at soccer!

2006-07-04 14:54:52 · 6 answers · asked by Anonymous

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2006-07-04 14:15:35 · 14 answers · asked by black78hockey 1

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quartet root find in calculotor

2006-07-04 13:10:55 · 19 answers · asked by ZM 1

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2006-07-04 12:55:42 · 7 answers · asked by Anonymous

How do you figure this out?

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Im an ADHD VP of a Fortune 500 corporation.

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Algebra, Fractions, 2 step equations you know the 9th grade work.

2006-07-04 11:34:25 · 5 answers · asked by Andre W 1

f(x)=x-2/ x^2 -3x -10...

I get x=-2, X=5... Is that correct??
Thanks

2006-07-04 11:10:09 · 6 answers · asked by c2pre 2

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2006-07-04 11:02:44 · 2 answers · asked by shahidshada 2

I was reviewing the integration technique of trigonometric substitution and I wanted to know why we are only restricted to using sin(a), tan(a), and sec(a)....

For example, in order to find the integral of (1/(1-x^2))dx .... the common method is to use x = sin(a) as the subsitution and you then get the answer arcsinx + C. However, how come you can't use x = cos(a)??? I can work out the problem but I get a different answer. I don't have my notes with me at the moment, but I believe I got -arccosx + C.

Why must I use sin(a)???

2006-07-04 10:27:13 · 4 answers · asked by Anonymous

I thought I saw him go into the apartment next door (Mr.Smale's apartment), but when I opened the door all I saw there was an old-fashioned laundry mangle...

2006-07-04 09:47:14 · 15 answers · asked by Anonymous

Or, in words: "x times the square root of four minus x". (I couldn't figure out how to type it)

I keep getting (we'll just stick to words now) "eight minus x all over two square root of four minus x". But the book tells me it should be "eight minus *three x* all over two square root of four minus x". This is the first step in a really long problem, so I need to know what I'm doing wrong before I keep working on it.

2006-07-04 09:40:18 · 8 answers · asked by Alice 2