Mathematics (Science & Mathematics) - 24 November 2007

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is (dy) over (dx) the same as f'(x)?

if its different ...can u please explain????????? thanks

2007-11-24 06:23:29 · 4 answers · asked by Anonymous

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exact roots of 3x^3+9x^2+10x+4=0??

thank you!

2007-11-24 06:02:49 · 3 answers · asked by dark_angel 1

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What is x equivelent to in the equasion 7x+2a=3a+5a?

Please Help me out here!! My Teacher is prone to making mistakes in the problems so even if it doesn't make any sense answere it with "There's a mistake."

2007-11-24 06:01:01 · 10 answers · asked by Anonymous

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find de median of....?

find the median of 463, 582, 401, 533, 457, 514, 438

2007-11-24 05:58:10 · 4 answers · asked by Anonymous

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For a random variable X, show that Var(X) = E(X(X-1)) - E(X) ((E(X)-1)?

There isn't anything else to add really. Any help would be GREATLY appreciated :)

2007-11-24 05:42:17 · 2 answers · asked by Sienna 1

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Mulitply. 7w(2w-3)(2w+3)?

2007-11-24 05:23:08 · 10 answers · asked by Boogie 2

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given that tan a=5/12, a is in QIII, find sin(2a) and cos(2a)?

a=angle
a is in quadrant III

2007-11-24 04:59:56 · 3 answers · asked by chrys 1

0 ⤊

Geometry and proving triangles congruent?

These are the directions: Indicate the additional pairs of corresponding parts that would have to be proved congruent in order to use the given postulate or theorem to prove the triangles congruent.

I have 5 problems like this. Here's one of them:

Triangle ACE (is congruent to) Triangle CDE by SSS

(Wow, this is hard to explain without pics lol)
Ok, the problem already shows that segment AE is congruent to segment DE. So, would the answer to this problem be:

Segment AC is congruent to segment DC
Segemnt CE is congruent to segment CE (or do i not need to say this one since they are the same segments??? I just don't want to do this wrong on all 5 problems like this...)

2007-11-24 04:35:39 · 3 answers · asked by breta50 1

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f (x)=x²-5x+6 x= -2; x= -3?

2007-11-24 04:33:46 · 8 answers · asked by Boogie 2

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5x(x – y) – 10(x – y)?

Factor completely
5x(x – y) – 10(x – y)

2007-11-24 04:25:36 · 10 answers · asked by Anonymous

1 ⤊

Factor completely 49x^2-9?

Factor completely
49x^2-9

2007-11-24 04:24:39 · 11 answers · asked by Anonymous

1 ⤊

(2x-6)/(21) divided by (5x-15)/(12)?

Divide
(2x-6)/(21) divided by (5x-15)/(12)

2007-11-24 04:23:26 · 5 answers · asked by Anonymous

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(70x^3+35x^2)/(7x)?

Divide

(70x^3+35x^2)/(7x)

2007-11-24 04:21:40 · 9 answers · asked by Anonymous

7 ⤊

Can someone help me prove this? 1-sinxcosxtanx = cos^2x?

2007-11-24 03:59:55 · 6 answers · asked by Anonymous

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what is 20and half yards in meters?

2007-11-24 03:56:37 · 8 answers · asked by pet 1

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prove that for any real number k , the polynomial given by x^3+x+k has exactly one real root?

2007-11-24 03:44:05 · 5 answers · asked by fahim_1182 2

2 ⤊

fibding the largest n integer?

there is a sequence of n intergers. In the sequence, the sum of any 4 consecutive terms is negative, while the sum of any three consecutive terms is positive. what is the largest possible value of n?

2007-11-24 03:31:36 · 1 answers · asked by samuraiexe 1

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