Mathematics - 9 August 2007

go here
http://www.nysedregents.org/testing/mathre/b-607.pdf
# 31 and #32
i know the ans but dont know how to do the work and i'm taking the math b test nxt week

thanx

2007-08-09 16:12:59 · 7 answers · asked by insherry girl 2

plz solve the following differential equation completely....
4D2y-4D1y+y=0;
where D1 &D2 denotes the and second derivatives respectively...

2007-08-09 15:48:17 · 3 answers · asked by chandra p 1

plz solve the following differential equation completely....
4D2y-4D1y+y=0;
where D1 &D2 denotes the and second derivatives respectively...

2007-08-09 15:48:13 · 2 answers · asked by chandra p 1

2007-08-09 15:47:54 · 7 answers · asked by mowerhead 2

okay so use all the numbers 0-9, added up to make a hundred.
first person to do it gets best answer.
you may make the numbers into larger numbers like 72+13+6... and so on..
good luck

2007-08-09 15:39:52 · 5 answers · asked by miss lyss 2

In a few weeks I start my first term as grad student in the math department and I am a GTA. I will be in charge of 4 recitation sessions for calculus courses. Just wondering what to expect.

2007-08-09 15:18:46 · 3 answers · asked by bob8763763 2

For odd denum:
cos(pi/3) + cos(3*pi/3) + cos(5*pi/3) = 0

for even denum :
cos(pi/4) + cos(3*pi/4) = 0
cos (pi/6) + cos(3*pi/6) + cos(5*pi/6) = 0
etc.

Is there any general formula for this?
I need this to prove sumthin.

Thanks Before.

2007-08-09 15:17:23 · 1 answers · asked by Anonymous

2007-08-09 14:43:53 · 6 answers · asked by lissiebobissie 2

2007-08-09 13:31:08 · 9 answers · asked by mizcathyg 1

1) from point Pon the parabola x^2=2y a tangent is dran. From focus (S), a perpendicular is drawn to meet the tangent at R
a) find the equation of SR
b) find the locus of R

2) Show that the locus of the mid-ponts of chords in the parabola x^2= 4ay which passes through the vertex is the parabola x^2=2ay
(for qn. 2 I can do it if instead of the locus passing through the vertex, you ony consider focal chords but for this one I'm stuck)

2007-08-09 12:42:48 · 3 answers · asked by Anonymous

2007-08-09 12:38:04 · 2 answers · asked by alfonso v 1

2007-08-09 11:29:11 · 2 answers · asked by extremely_nerd 1

2007-08-09 11:01:39 · 4 answers · asked by genelle b 1

1) If the linear transformation T: R^n --> R^n is one-to-one and T(u-v) = 0, then u = v (u and v being vectors and 0 being the zero vector).

2) If the linear transformation R^n --> R^n is onto T(u-v)=0, then u=v (u and v being vectors and 0 being the zero vector).

3) If det(A) = 0, then T is neither onto nor one-to-one.

4) If T: R^n --> R^m is not one-to-one, then ker(T) contains infinitely many vectors.

5) Shears in R^2 are one-to-one linear operators.

2007-08-09 10:52:45 · 2 answers · asked by Anonymous

i need help with math i don't get it and i don't know how to do it at all i'm slow in a lot of things .. can some one please help me .. or talk to me

2007-08-09 10:46:15 · 10 answers · asked by tj 1

4x=28

2007-08-09 10:27:34 · 6 answers · asked by trusofty 1

2007-08-09 10:22:57 · 6 answers · asked by Anonymous

How do I find the distance between points in space?

Sample:

Find the distance from point K (2, 4, -6) and L (4, 6, 0)?

2007-08-09 10:10:50 · 3 answers · asked by journey 1

1/3s +7/9 =4/3s

laurah_42@yahoo.com

2007-08-09 10:07:00 · 3 answers · asked by lala haha gaga mama 2

I cannot draw the rhombus using this keyboard.

I have rhombus ABCD. Angle A = 40 degrees and diagonal AC = 20.

I tried using trig to find diagonal BD but was not able to.

How do I find the area of this rohombus given the data above?

Thanks

2007-08-09 10:04:46 · 2 answers · asked by journey 1

2007-08-09 09:33:46 · 4 answers · asked by Sublime 33 1

2007-08-09 09:28:38 · 12 answers · asked by Anonymous

The degree measure of the vertex angle of an isosceles triangle is 120. Find the measure of a base angle of the triangle.
what do you have to do?
and Thank you

2007-08-09 09:24:43 · 5 answers · asked by Anonymous

Find the length and width if the perimeter is 54 meters?

2007-08-09 09:13:57 · 10 answers · asked by Anonymous

Find the base and height of triangle if the area is 18 square inches?

2007-08-09 09:12:03 · 10 answers · asked by Anonymous

Find the perimeter of this rectangle?

2007-08-09 09:08:00 · 5 answers · asked by Anonymous

2007-08-09 09:02:56 · 6 answers · asked by ? 2

2007-08-09 08:57:40 · 9 answers · asked by Drock 1

2007-08-09 08:27:32 · 4 answers · asked by Anonymous

Okay, I am kind of clueless right now..please help and explain if you can.. Thank you

Solve for x: 2^1-x = 3^x

The answer is ln 2 / ln 6, but I have no clue how to get that.

2007-08-09 08:10:17 · 7 answers · asked by ? 3