Mathematics - 19 June 2007

My summer hw is going over quadratic equations and this was one of them but I got stuck...
I thought I'd make
a=x^2
b=4x
c=3
but that made it worse!
Can anyone help me? You don't need to do it for me, but any hint will help! Thanks!

2007-06-19 23:22:30 · 9 answers · asked by cj20eight 1

2007-06-19 22:50:32 · 8 answers · asked by princess 2

If I have 40 cents in my pocket..What is the fewest amount of coins that I have in there?

2007-06-19 22:01:43 · 4 answers · asked by Anonymous

x^2+a(a-2x)=a^2+x(x-2a)



Thank you,,,GOD BLESS YOU ALL!

2007-06-19 21:46:53 · 8 answers · asked by Anonymous

Physics and Math is blowing my head off!! How will I ever understand it better??? Please help me. I listen to my teacher. I take notes. I review. What else do I have to do to understand those mind bugging formulas and all? Does this mean that Im really dumb in nature?

2007-06-19 20:22:00 · 3 answers · asked by Anonymous

Check the following question asked earlier:

http://answers.yahoo.com/question/index;_ylt=AiQIsQj4clXENVqJkJ2YZdnty6IX?qid=20070614191401AAQdxSL&show=7#profile-info-bea2c50e30c8c234aeb6e88e02424208aa

Given the infinite series Σ (1/n^k) where n = 1 to infinite, if k = 1 + 1/x, for large x show that the sum asymptotically equals x. In the case of x = infinity, then we have the classic series Σ (1/n) which does not converge.

2007-06-19 20:21:46 · 1 answers · asked by Scythian1950 7

2007-06-19 20:12:58 · 6 answers · asked by Maxis 2

2007-06-19 20:11:29 · 7 answers · asked by Anonymous

2007-06-19 20:04:11 · 12 answers · asked by Anonymous

-9c^3d+4cd^3/6cd-4cd^2

2007-06-19 19:47:39 · 5 answers · asked by tickled pink 1

2007-06-19 19:46:07 · 7 answers · asked by Anonymous

Help me reduce the following rational expression.

-30
____
75

2007-06-19 19:39:17 · 11 answers · asked by tickled pink 1

2007-06-19 19:37:27 · 4 answers · asked by om sairam 1

your help is greatly appreciated can you please explain the steps?

2007-06-19 19:18:31 · 5 answers · asked by tickled pink 1

When dividing rational expressions, how do you know what x CANT BE? HELLP FINALS TOMORROW!!!?
okay for example,

x^2+5x+10/x+6 DIVIDED BY x^2+6x-36/ x-2


okay so, i know that i flip the second fraction so the two fractions are multiplied, but BEFORE I FLIPP IT, is the x-2 on the denominator supposed to be like x cant be 2..? or do you only do the "x cant be _" after you flip the second fraction?

2007-06-19 19:16:48 · 5 answers · asked by Anonymous

2007-06-19 18:46:28 · 3 answers · asked by confused_2007 1

|2m-7|<16

2007-06-19 18:43:32 · 6 answers · asked by Anonymous

The problem is long and tough to type, so please bear with me. I hope the message gets across:

[1/(a1*an)] + [1/(a2*an - 1)] + ... + [1/(an * a1)] ..... (1)

[2(a1 + an)][(1/a1) + (1/a2) + (1/a3) ... + (1/an)] ..... (2)

If a1, a2, a3, a4 .... , an -1, an are in AP, prove that (1) = (2)

If the proof is tough to type or too long, mail me here:
trvs_2k4@yahoo.com

2007-06-19 18:37:22 · 6 answers · asked by Akilesh - Internet Undertaker 7

PLEASE SHOW WORK

2007-06-19 18:22:33 · 6 answers · asked by Anonymous

Need help w/ solving

2007-06-19 18:20:20 · 5 answers · asked by bee 1

My math final is tomorrow and I know the study guide front to back except for this problem it says the following: Prove that the given equation is an identity.

sin (x-(pi/2))= -cos x

2007-06-19 18:00:25 · 5 answers · asked by Anonymous

What is 25% of $8.100.00?

2007-06-19 17:58:16 · 8 answers · asked by Adriana P 1

the dots between i, sin^-1 and -i,w means multiply. Also i means imaginery number.

2007-06-19 17:44:58 · 3 answers · asked by Anonymous

2007-06-19 17:42:32 · 4 answers · asked by brian m 1

8x/3-1/6= 4(x-1)+1/4

2007-06-19 17:34:30 · 8 answers · asked by smosh 1

same same

2007-06-19 17:22:28 · 7 answers · asked by Kenny P 1

In my computer class, we went over early computer devices, and the teacher gave us all an antique punch card and gave us a related problem to solve. Both it and the answer went right over my head. Help please!

2007-06-19 17:17:48 · 2 answers · asked by Andrew V 1

Find the value of the standard normal random variable z, called z(sub)0 [z_0] such that:

P(z (is less than or equal to z_0 ) = 0.6279
I got z_0: .325 by looking up value on a chart.

P(-z_0 less than or equal to] z [less than or equal to] z_0 ) = ?

Not sure how to go about this, tried about a million different ways.

Also,

P(-z_0 [less than or equal to] z [less than or equal to] 0 ) = 0.2671
z_0 =

2007-06-19 16:51:16 · 3 answers · asked by hamncheeser 2

2007-06-19 16:33:58 · 13 answers · asked by Anonymous

Hello. I need desperate help on how to show and solve both of these questions.

Mathematics Help?
If possible I would like help with this equation:


Ted has two large identical dice painted so that 4 faces are blue and two faces are red. He rolls the two dice and observes how many blue faces are uppermost.
a)Complete the tree diagram, including probabilities and outcomes possible, to represent this situation.
b)Using you tree diagram, or otherwise, calculate the probability that the two faces are different colours

How Would I solve and find the answer? The tree diagram that i am supposed to represent the situation on is here:

http://www.freeimagehosting.net/image.php?f7aadaf2c3.jpg

Please Help as I need desperate help with this.
Thankyou.

2007-06-19 16:32:52 · 3 answers · asked by Anonymous