Mathematics - 23 November 2007

how many diffrent number combinations can you make with the nuber 1-56???

2007-11-23 16:53:29 · 2 answers · asked by Chris W 1

2007-11-23 16:47:47 · 5 answers · asked by Anonymous

for example some are writing "10,000" as "10 K". what is the meaning behind this? what does the " K " mean / stands for?

2007-11-23 15:57:13 · 11 answers · asked by Anonymous

multiply

2m(5m-3)(4m+7)

2007-11-23 15:45:32 · 4 answers · asked by crazy4u 1

A friend and I were thinking about how to approach the following problem:

Given a 3-dimensional cubic grid ([1,7] x [1,7] x [1,7]) in discrete coordinates (343 points total), we want to pick a small number of points in the grid so that *every* point in the grid can be reached from one of the chosen points by traveling along at most 3 unit line segments.

In other words, we want a minimal covering of the grid by octahedra of radius 3. Each octahedron can cover 25 points, so it's clear that at least 14 will be required, but I suspect that overlap will increase that number by a few.

Any ideas about how to go about solving this?

2007-11-23 15:45:00 · 1 answers · asked by gremlinn007 2

180=-16t^2+112t

2007-11-23 15:42:19 · 5 answers · asked by too_b2000 1

Use synthetic Division to decide whether the given number is a zero of the given polynomial>

3:f(x)=9x^3+x^2+4x-5

2007-11-23 15:20:37 · 2 answers · asked by Anonymous

Subtracting fractions??
easy steps??
please!

2007-11-23 14:50:13 · 6 answers · asked by HalieeBoBaliee. 2

Factor the Following polynomial completely.

x^3+2x^2-3x-6

I have forgotten how to do it. Please show work. Thanks

2007-11-23 14:46:29 · 8 answers · asked by Deanna H 1

I know the answer is e^(-8) but I don't know how to get to that.

2007-11-23 14:45:49 · 9 answers · asked by Elfy 2

what is the selling price of an $899 computer that is on sale for 25%?
I need help please.

2007-11-23 14:31:41 · 7 answers · asked by YoYo 2

The line L through the origin is normal to the plane 2 - y - z = 4. Find the point in which L meets the plane x + y - 2z = 2....

2007-11-23 14:16:42 · 2 answers · asked by Anonymous

2007-11-23 12:25:05 · 10 answers · asked by Anonymous

does anyone have an ideas as to where i can find sites the would direct me to soultions of problems, etc from the mcgraw hill 11 university textbook.

thanks!

2007-11-23 12:22:53 · 2 answers · asked by E=MC^2 1

2007-11-23 12:22:52 · 6 answers · asked by Anonymous

4x + y = 11
x + y = 2

2007-11-23 11:43:53 · 9 answers · asked by Anonymous

2007-11-23 11:22:35 · 4 answers · asked by yani 2

i need to know how to determine if an equation is linear or not.thanks for any help

2007-11-23 10:54:55 · 7 answers · asked by . 3

Find all values of n such that x^2 + bx + (b/2)^2 = n
A. one real root B. Two real root C. two imaginary roots

2007-11-23 10:43:49 · 2 answers · asked by andy l 1

I posted my question in detail at Cramster.com at
http://answerboard.cramster.com/math-topic-5-146463-0.aspx

Any help/suggestions/hints are greatly appreciated.
Thank you for your time!

2007-11-23 10:39:58 · 2 answers · asked by Anonymous

a kennel owner has 164 feet of fencing with which to enclose a rectangular region. He wants to subdivide this region into three smaller rectangles of equal length. If the total area to be enclosed is 576 square feet, find the dimension of the entire enclosed region. (hint: write an expression for l in terms of w)

2007-11-23 10:35:29 · 3 answers · asked by andy l 1

If x^2 + y^2 = 25 and dy/dt = 6, find dx/dt when y = 4.


(remember, we're looking for dx/dt, not dy/dt)

2007-11-23 10:30:59 · 1 answers · asked by glass_commander 2

I have to use rational exponents to simplify the radical

2007-11-23 10:19:56 · 5 answers · asked by Anonymous

Subtract. Write your answer in simplest form.
(y-2)/(y+3)-(y)/(2y+6)

2007-11-23 10:10:41 · 5 answers · asked by Anonymous

Help I am lost!

The height h in feet of an object after t seconds is given by the function h=-16t^2+30t+7
How long will it take the object to hit the ground? Round your answer to the nearest thousandth, and explain which solution is the correct one.

2007-11-23 10:03:26 · 4 answers · asked by Anonymous

2007-11-23 09:49:57 · 4 answers · asked by Nicole D 1

Solve and check

(3/x+3)+1=(7/x+3)

2007-11-23 09:43:22 · 5 answers · asked by Anonymous

Multiply.
2m(5m – 3)(4m + 7)

2007-11-23 09:41:28 · 1 answers · asked by Anonymous

Golden ratio's little brother.

2007-11-23 09:36:53 · 11 answers · asked by Anonymous

Case 1: 1 x 1=1
Case 2: 11 x 11=121
Case 3: 111 x 111=12321
Case 4: 1111 x 1111=1234321
Case 5: 11111 x 11111=123454321
Case 6: 111111 x 111111=12345654321
Case 7: 1111111 x 1111111=1234567654321
Case 8: 11111111 x 11111111=123456787654321
Case 9: 111111111 x 111111111=12345678987654321

2007-11-23 09:36:24 · 4 answers · asked by love 1