Mathematics - 18 September 2006

I need to solve for x. Here's the problem:

((4)/(x-3)) = ((3)/(x-4))+(1/2)

I keep coming up with x squared minus 9x + 26 = 0. From there, I've applied the quadratic formula and keep ending up with the square root of a negative number, which is obviously impossible. Can someone shed some light on this for me? Thanks a million!

2006-09-18 14:43:37 · 6 answers · asked by math dodo 2

2006-09-18 14:42:09 · 8 answers · asked by Anonymous

limit xlnx = ?
x-->0

2006-09-18 14:39:22 · 3 answers · asked by math dodo 2

http://answers.yahoo.com/question/index;_ylt=AotPRUF9XvxqNCjRXfd8fHTsy6IX?qid=20060918180217AAIIhsx

2006-09-18 14:32:21 · 6 answers · asked by Anonymous

The question is. You have 84 cents, these are all coins. Coins have to weigh 44.5 grams. A dime weighs 2.5 grams, a penny weighs 3.25 grams, a nickle weighs 5.0 grams, a quarter weighs 6.5 grams, and a half dollar weighs 13.0 grams. Please help us, and tell us how you came up with this answer.

2006-09-18 14:30:30 · 7 answers · asked by lynnette m 2

Which of the following is not a rational number?


-4
1/5
0.8333333……
0.45
v2

2006-09-18 14:12:23 · 10 answers · asked by LOLO 1

Where can i obtain an accurate whole number for the circumference and diameter of a circle? Or anybody give me...

2006-09-18 14:11:20 · 6 answers · asked by aldimca 2

1.) The measure of an angle's supplement is 44 less than the measure of the angle. Find the angle and its supplement?

I came up with 44x=180 but I think its wrong?

2,) L and M are complementary angles. N and P are complementary angles. If the measure of L = y-2, the measure of M= 2x+3, the measure of N=2x-y and the measure of P =x-1 find the values of x,y and the measures of L,M,N,and P.

Im not sure how to do this one but my first thought would be to put all the equations together like y-2+2x+3+2x-y+x-1 then mybe add like terms. Am I correct, if not please help. Thanks

2006-09-18 14:06:17 · 3 answers · asked by MissLady0608 n 5

2006-09-18 14:01:51 · 2 answers · asked by Anonymous

Given: angle 4. is an exterior angle of the triangle
Prove: angle 4 = measure of angle 1 plus the measure of angle 2.

Two column proof:
Statement 1 says angle 4 is an exterior angle of the triangle. Reason 1 says “given”.
Statement 2 says the measures of angles 1, 2 and 3 added together equal 180 degrees.
Reason 2 says ?
Statement 3 says angles 3 and 4 are a linear pair.”
Reason 3 says?
Statement 4 says angles 3 and 4 are supplementary angles.
Reason 4 says “If two angles form a linear pair, then they are supplementary.”
Statement 5 says measure of angle 3 plus the measure of angle 4 equals 180 degrees.
Reason 5 says ?
Statement 6 says the sum of angles 1, 2 and 3 equal the sum of angle 3 and 4.”
Reason 6 says?
Statement 7 says measure of angles 1 and 2 equal the measure of angle 4
Reason 7?

2006-09-18 14:00:14 · 5 answers · asked by Roberta A 1

WHat 2 numbers could Sarah have multiplied? How can the product of the 2 numbers be smaller than one of the original numbers? (Hint: 0 is not one of the numbers).....Help.....7th grade math.

2006-09-18 13:56:48 · 11 answers · asked by Anonymous

2006-09-18 13:55:19 · 2 answers · asked by dubassaves 2

2006-09-18 13:51:49 · 8 answers · asked by Jae09 1

m/n+5m=20 search for m
s/2t is 10 for t

2006-09-18 13:48:27 · 2 answers · asked by Anonymous

2006-09-18 13:47:13 · 9 answers · asked by Roberta A 1

The dimension of a rectangle solid are whole numbers. The area of the faces are 42cm square, 48cm square, and 56cm square. What are the dimensions of the solid?

2006-09-18 13:45:09 · 5 answers · asked by Anonymous

Justine has some rare quaters and nickels. She has 8 more nickels than quaters. The face value of the coins is $2.50. How many are quaters?


Please tell me how you got your answer.

2006-09-18 13:41:30 · 12 answers · asked by Anonymous

Find the distance between the points (6, -5) and (4, -2).

Please Help me with this, I got the square of 149 but I know its wrong.
The square of 13 is correct, show me how that it is right for 10 pts.

2006-09-18 13:37:15 · 9 answers · asked by sdchaldo27 3

i know that 27 can change to 3 to the 3rd.

2006-09-18 13:36:24 · 6 answers · asked by dvdai14 2

estimate 6,235 + 2,505.use rounding

2006-09-18 13:35:11 · 10 answers · asked by Anonymous

okay so if
a side=10
b=15
and
c=20
is this a right triangle?

and can you explain how to do this?

thanx so much!

2006-09-18 13:35:05 · 5 answers · asked by JORDAN! 2

1. the measure of a supplement of an angle is 6 times the measure of the complement of the angle. Find the measure of the angle, its suppplement, and its complement.

2. 12 degrees less than one half the supplement of an angle is the same as the complement. find the measure of the angle.

i dont get these...plz solve it and tell me how you did it!

2006-09-18 13:34:39 · 3 answers · asked by heyyoloserr 3

ok.. i need to find 2 quadratic functions (one opening up and one opening down) with these x intercepts :

(-1,0) (3,0)

and

(-3,0) (-1/2,0)


Also, intersection points for

y=9- x^2
y=x+3

and

y=x^3+2x-1
y=-2x+15

Please explain how to do them!! I've tried so hard to figure these out. Thanks.

2006-09-18 13:34:30 · 2 answers · asked by AnswerGiver 4

If you round me to the nearest thousand , you get 4,000.
The sum of my digits is 10.
If you read me forward or backward, I am the same.

What number am I?

2006-09-18 13:31:50 · 28 answers · asked by cmj 2

4x+3y=-15

2006-09-18 13:26:56 · 9 answers · asked by Emilia r 1

if it takes 5 men 2 1/2 days to dig a hole, and 3 men 4 1/2 days to dig a hole, how long would it take 2 men to dig half a hole?

2006-09-18 13:26:00 · 8 answers · asked by mitch 1

2006-09-18 13:25:36 · 3 answers · asked by jilljeter2004 1

I'm this ___ far away from just not doing this homework all together because you people make things too complicated. The way we're supposed to solve the question is with the formula A(.5)^T The QUESTION is If a substance has a half life of 72 hours how many days will it take to reach 10% of its original amount? Q #2: How many days until 70% is left?
I really want to understand this.

2006-09-18 13:22:56 · 6 answers · asked by guardian_erin 2

If a circle has the diameter of 8, what is the circumference?


6.28
12.56
25.13
50.24
100.48

2006-09-18 13:15:33 · 12 answers · asked by LOLO 1

How do I get A's in my report Card, I try my best, but don't get Geometry!

2006-09-18 13:12:50 · 11 answers · asked by Anonymous