Mathematics - 1 November 2007

i just wanna know any answer for my science homework due tomorrow so plz help!!! thanx

2007-11-01 10:59:46 · 6 answers · asked by Anonymous

I have a Texas Instruments-30Xa calculator. I am not getting the answer that the online course is providing.

2007-11-01 10:47:46 · 2 answers · asked by Anonymous

I am stuck on this math problem >_< please help me, how do I solve this math problem

2x/x-1 + x+1/x
________________
4x/x+1 - 2x+2/3x

So confused, I need to make sure I know how to do this problem before I take a math test, someone help fast

2007-11-01 10:35:21 · 2 answers · asked by kernal 3

http://i111.photobucket.com/albums/n157/wiltzandrew/poly2.jpg
This is a closed polygon. The units are just general coordinate units:

"What are the coordinates of the two yellow dots?
What is the distance between the two yellow dots?
What is the area of the polygon?
What are the angles of the two yellow dots, in degrees?

*Show your work; numbers must be accurate to the 4th decimal place."

I made this up in Chemistry two days ago when the teacher was rambling on about saturated and unsaturated solutions. Just to find the distance between the yellow dots, it took me about 2 hours because I forgot a few of my trig rules; did that stuff last year; eesh. Took my math teacher about a half hour to find the distance between the two yellow dots. I felt like spicing it up, and adding a few more questions. IM me if the questions are unclear. Good luck!
-Andrew
wiltzandrew1989 on Yahoo! Messenger,
wiltzandrew on AIM,
wiltzandrew on MyspaceIM

2007-11-01 10:35:21 · 4 answers · asked by College guy 2

this question is so hard it took me forever to figure it out and i have the answer and whoever gets it right and shows me how they did it i will vote as best answer

A rectangular swimming pool is 50ft long and 25 ft wide. there is a walkway x ft wide surrounding the pool.

First you have to find the lenght and width of the pool with the walkway x ft.

Next you have to find the area of hte pool with the walkway in terms x. Explain!

ok if the total area of the pool and walkway is 2284 ft squared, what is the width of the walkway?

This is easy simple geometry right? Wrong! remember whoever gives the right answer and the best explaination gets my vote as best answer!

2007-11-01 10:31:40 · 5 answers · asked by rachel 2

2007-11-01 10:29:21 · 8 answers · asked by brunettebelle10 2

Add or subtract to solve each equation.

2 1/5 + 1 8/9

2 1/3 - 4 7/9

2007-11-01 10:25:00 · 18 answers · asked by greekfoodfestival10 2

2007-11-01 10:22:17 · 4 answers · asked by DuranDoll 6

Jackie decided to sell a CD of her greatest hits of High school
Musical unplugged. The retail price of the case containing the CD
and the CD itself is $1.10. If the case costs $1.00 more than the
CD, how much does the CD cost without CD Case?

2007-11-01 10:18:13 · 8 answers · asked by Chuck Norris 1

What is the value of X such that (x,0) is a solution of the euation y=3x-4? Answer in a common fraction

2007-11-01 10:16:06 · 4 answers · asked by avril_is_the_hotest 2

2007-11-01 10:05:26 · 14 answers · asked by b m 1

what is the probability of rolling a 5 on a # cube?(decimal form)

2007-11-01 10:02:04 · 21 answers · asked by ladybug101 1

I know the area of a sphere is 4.pi.r.squared. I know this because my daughter's 7th grade math text says so. But how did the world of mathematics come up with that particular formula? How can we prove it, using fundamentals and logic. If the proof is too long to post, can you point me to a reference. Thanks in advance.

2007-11-01 09:58:59 · 5 answers · asked by I_like_math 1

6 gal 3 qt = _____qt _____lb = 64 oz 8 m = _______cm 3,080 mL = _______L

2007-11-01 09:52:04 · 1 answers · asked by palkia_8460 1

2007-11-01 09:50:28 · 12 answers · asked by Sharon B 1

http://www.mathwarehouse.com/geometry/circle/images/two-secants/diagram-intersection-of-secants.gif

the circle and triangle look like that, only A and C are connected, and X and Z are connected. PS: dont pay attention to any of the letters or measurements other than A, C, X and Z. The X in the angle is also not there, but label the top of the triangle B.

Given: Secants BA, BCand XA is congruent to ZC.

Prove: triangle ABC is an isosceles traingle.

Please help!!!!!!!!!!!!!!!!

2007-11-01 09:31:38 · 1 answers · asked by Fuzzyglasses 3

2007-11-01 09:25:37 · 7 answers · asked by b m 1

2007-11-01 09:11:39 · 10 answers · asked by kiera.james 1

find all solutions in the range 0< x < (PI)

cos2x - cos4x =sin x

giving all the solutions in (PI) radians

Im really stuk on this Q...if ny one can solve this plz could u explain it aswell..thanks.

2007-11-01 08:59:41 · 1 answers · asked by clueless 1

The temperature for the past 8 hours has been changing at the rate of -1.5 degrees each hour. The meterorologist predcts that the temperature will continue changing like this for the next 6 hours. The present reading is 0 degrees.

a) what was the temperature reading 7 hours ago?

b) what temperature is predicted for 6 hours from now?

c) when was the temperature 6 degrees?

d) when is the temperature expected to be -8 degrees?


[this is my younger brothers homework and i cant figure out exactly what it's asking, can someone help me?]

2007-11-01 08:57:23 · 4 answers · asked by juiicybabiieex3 1

I'm in Matlab.
I have written a script that , for many times, trains a neural network.Unfortunately every times the comand "train" (for training neural network) display a figure.
The problem however is this: how can I avoid that matlab displays many figure ? I don't want one figure (this simple with "hold on"), I WANT NO FIGURES?
Thanks , best regard

2007-11-01 08:53:49 · 2 answers · asked by thiusthius 1

A Pteri with a light appetite could not finish his Rainbow Melt Pizza. In fact, he could only eat exactly half of it.

If the diameter of the pizza was 50cm, and the half-pizza was a perfect semicircle, what is the area of the smallest square box, in square centimetres, that could contain the half pizza? Please disregard the thickness of the box, round to the nearest whole number, and please only submit a number for your answer.

2007-11-01 08:52:14 · 3 answers · asked by kelly_h@verizon.net 1

T(x,yz)=25.67+1.63sin(0.01x^2yz)+3.11cos(0.02xy) degrees celcius

If a body starts at the point (5,5,5) and flies toward the origin (0,0,0). What's the rate of change of the temperature at the beginning of its flight?

2007-11-01 08:32:53 · 2 answers · asked by Nomad 1

Im having a little trouble doing it, could anyone help me? Argh, i mean i know all the steps but this tricks me all the time lol

for Example:

3x-7=4x-2
+7 +7
3x=4x-9
-4 -4
-1x=-9
would it be x=-9 or x=9?

2007-11-01 08:27:30 · 10 answers · asked by FinalThought182 4

So the math problem is this
2/c+1 , - 1
_________
2 +, 5/c+1

So I times both side by the LCD (c+1) to get rid of the fractions

And I got this
2 - (c+1)
________
2(c+1) + 5

Am I doing it right so far ? and If I am , In the numerator am I supposed to multiply the - with (c+1

2007-11-01 08:22:33 · 2 answers · asked by kernal 3

One formula looks simple enough to be re-typed here (the rest of them formulas are hopeless)
S = - Σ Pi lnPi

Can you tell me at least what this Σ thingie means?

2007-11-01 08:22:18 · 5 answers · asked by Alexander 6

A function is to be maximized
f(x,y)= x+y subject to the constraint 2x^2+y^2=2

wha tis the exact value for the maximum

I can find all the derivatives and end up with 1=4*lambda*x
and 1=2*lambda*y

where do I go from here?

2007-11-01 08:15:03 · 2 answers · asked by cody s 2

2007-11-01 08:07:19 · 4 answers · asked by RogerDodger 1

Hi i want to know the formula that looks through a list of data say this:


Name Score

Bob 65

Peter 32

Vic 87

Sally 99

James 100

Judy 34


And I want the formula to look down the list of scores and display the persons name with the highest score. In this case it would be james.

What is thre forumla. I know you can do it but i have forgotten.
Please could you include an Example

Thanks

Hearmenowinfo

2007-11-01 08:07:03 · 11 answers · asked by Anonymous

2007-11-01 08:00:47 · 1 answers · asked by Giggly Giraffe 7