Mathematics - 24 August 2006

2x^2 - x = 7

2006-08-24 08:46:40 · 4 answers · asked by wicked 1

x^2 + 12x + 36

2006-08-24 08:45:17 · 6 answers · asked by wicked 1

2006-08-24 08:43:53 · 4 answers · asked by wicked 1

x^2 + 2x -24 = 0

2006-08-24 08:42:56 · 3 answers · asked by wicked 1

In high school a friend taught me this kinda like a math game where let's say you have a square with 9 boxes in them. There is a way where you can number the boxes 1-9 in a pattern. Then when you add them up the sum is all the same on all sides. I forgot how to do it. No matter how large the box is, if you do it right it will still add up to the same amount. Anyone know how to do it?

2006-08-24 08:23:04 · 4 answers · asked by Ethan 2

I was just wondering...

2006-08-24 08:13:34 · 12 answers · asked by celia3018 3

No catagory for this, so chose maths.

2006-08-24 07:58:07 · 10 answers · asked by Chris cc 1

2006-08-24 07:44:57 · 2 answers · asked by omarionsgirl1983 4

Can you generalize to a J by k lines ?

2006-08-24 07:36:25 · 8 answers · asked by Farid R 2

I need to convert 26,632 gallons of oil to tons.... Please help!

2006-08-24 07:00:56 · 10 answers · asked by Anonymous

i cannot answer this math question please show your work. here it is:

6[5x+9(8y-4x)-9] +2(9y-6x) -4x=6[9y-2x(7-4)



What is y and x

2006-08-24 07:00:40 · 8 answers · asked by Anonymous

The first two cases are 1 and 36. I could write a computer program to find the others, but is there a formula for this?

2006-08-24 06:47:12 · 6 answers · asked by Chris S 2

I have a sample of 15 firms, with certain data i.e. the profits for each firm, the number of employees, the number of board members etc. Due to the small sample size, its not worth doing multiple regression to see whether the the number of employees, the number of board members etc. affect the firms profits. So I just want to do some correlation between the dependent variable (profitability) and the independent variables i.e. member of employees, the number of board members etc......should I use Pearsons or Spearman? Thanks.

2006-08-24 06:38:46 · 3 answers · asked by Anonymous

-a log[(a+sqrt(a^2-y^2))/y]

I could not simplify it. I have double-checked the placement of parentheses.

2006-08-24 06:32:44 · 9 answers · asked by rgsoni 2

you are given2 equations which are both true, and you are asked to solve for both x and y. you plan to solve this set of equationsby substituting part of one equation into the other so you end up with an equation that contains only x's or only y's.

2006-08-24 06:24:05 · 3 answers · asked by David G 1

2006-08-24 06:14:33 · 5 answers · asked by Anonymous

The quadratic formula gives two correct solutions for any second degree equation. I'm told there is a similar, if more complex, method for solving any third degree equation. In other words, if I say Ax^3+Bx^2+Cx+D=0, can you give me the three solutions for x in terms of A, B, C, and D?

2006-08-24 05:40:02 · 9 answers · asked by Mehoo 3

2006-08-24 05:18:51 · 16 answers · asked by Randy H 1

2006-08-24 05:06:46 · 5 answers · asked by hachipoosamsam 1

2006-08-24 05:03:36 · 9 answers · asked by Put_ya_mitts_up 4

Haven't done math in years, just currious to see the actual solution worked out. First person to show the actuall proof get's 10 points.

2006-08-24 04:46:00 · 7 answers · asked by Anonymous

2006-08-24 04:39:15 · 10 answers · asked by Anonymous

On the first day of the month there is one Lily pad in the pond, on the second day there is two and on the third there is four and so on doubling its self each day. On the last day of the month the pond is full of Lily's.
On which day was the pond half full?

2006-08-24 04:22:51 · 50 answers · asked by Osh Aka Oisinmagic 3

2006-08-24 04:04:18 · 17 answers · asked by Anonymous

I need these numbers converted:

317,440 pounds = _______ tons
78,480 pounds = ________tons
2,555,540 pounds = ________tons

PLEASE HELP! Thanks!

2006-08-24 03:44:55 · 16 answers · asked by Anonymous

I have a summer math packet thing and im like really stuck on this one problem. This is what it says...

1. a. Write a formula to find the perimeter (p) of a square. Use the letter s to represent the length of a side.
p= s x 4 (i got that one

b. Write another formula to find the perimeter of a square.

A= ___________

2006-08-24 03:24:42 · 11 answers · asked by Anonymous

Do you think that's a strange coincidence?

2006-08-24 03:24:15 · 29 answers · asked by Anonymous

Three guys are eating at a restaurant. When they finish, their tab is $15. They decide to split it evenly, so they each give $5 to the waiter. The waiter gives the money to the store owner, who happens to be a good friend of the three guys. The store owner decides to take $5 of the three guys' tab, so he gives the waiter five $1 bills and tells him to split evenly among the three guys.
The waiter is not very good at math, and also not very honest, so instead of figuring out how to split $5 among three people, he just gives each guy a $1 bill and keeps the other two for himself.
Now each guy paid $5 and got $1 back, so each guy effectively paid $4. There are three guys, so between thre three of them, they paid $12. The waiter has $2 more in his pocket. This adds up to $14. If the original tab was $15, then where did the remaining dollar go?

2006-08-24 03:11:50 · 9 answers · asked by knivetsil 2

2006-08-24 03:09:18 · 4 answers · asked by unquenchablethirst 2

the question is y = -xsquared + 2x + 1. I cannot work out my x intercept..can you help?

2006-08-24 03:05:55 · 5 answers · asked by lucy_goose 3