Science & Mathematics - 6 December 2006

Ok, I'm lost on this section. This is an unassigned HW question I think would help me to figure out if I could see how to do this the question is to find a general form for x'-y^2=2x and then to show it is really the answer.
I can't figure this out, any help?

2006-12-06 11:01:35 · 4 answers · asked by Anonymous in Mathematics

2006-12-06 11:00:18 · 11 answers · asked by Cindi W 1 in Geography

An open rectangle with a semicircle on the top has a total perimeter of 288 inches. Find the radius of the semicircle that will maximize the area of the window.

2006-12-06 10:59:19 · 3 answers · asked by haloplayer_901 1 in Mathematics

2006-12-06 10:59:06 · 2 answers · asked by poorgurl 1 in Mathematics

can you guys solve these but it wont do me any good if you dont explain how you got the answer for at least 3

1.3x + 8 <8
2.x over 2 + 5 > 8
3 -11 + x over 7 < -14
4.10x - 6 <= - x + 38
5.6x + 7 <= x + 32

2006-12-06 10:58:34 · 3 answers · asked by Mike 2 in Mathematics

I need to know how to do this. I'm going to be tested on this material.

Here is the problem:

Copper(II) chloride and lead(II) nitrate react in aqueous solutions by double replacement. Write thechemical balanced equation, the overall ionic equation, and the net ionic equation for this reaction. If 13.45 g of copper(II) chloride react, what is the maximum amount of precipitate that could be formed?

I want to let everyone that any help you can give me is really good.

2006-12-06 10:58:33 · 3 answers · asked by Tiffany 3 in Chemistry

2006-12-06 10:56:57 · 3 answers · asked by Devynne 2 in Biology

I want to make a strong acid-base reaction maybe using somehting like draino or bleach and lemon juice or battery acid

2006-12-06 10:56:30 · 3 answers · asked by Anonymous in Chemistry

2006-12-06 10:55:35 · 11 answers · asked by kammamsim1 1 in Astronomy & Space

2006-12-06 10:54:11 · 5 answers · asked by bsktballchik 4 in Biology

2006-12-06 10:53:49 · 2 answers · asked by bsktballchik 4 in Weather

give a proof or state and give the negation:
(a) (2,4) in X
(b) (3,1) in X
(c) All m in N, Some n in N, (m,n) in X,
(d) Some n in N, All m in N (m,n) in X

2006-12-06 10:53:30 · 3 answers · asked by poorgurl 1 in Mathematics

2006-12-06 10:53:20 · 8 answers · asked by bsktballchik 4 in Weather

Contrast

2006-12-06 10:51:41 · 2 answers · asked by exxohh<3 1 in Chemistry

Why at New Moon the moon is visible very small and keeps increasing every night up to full Moon. Why does the Moon Increase and Decrease every fortnight.

2006-12-06 10:51:40 · 6 answers · asked by Anonymous in Earth Sciences & Geology

Does anybody knows where to buy a star? I really want to buy a star for someone( which is me ). I know how: first you will recieve a form, then you fill it out. After that, you send it in and pay by something or to someone or somewhere. Then you get to name it and they tell you where it is located. See! It seems so cool. And could you tell me about how much it costs to buy a star, too!? :)

2006-12-06 10:51:30 · 11 answers · asked by Jenny 1 in Astronomy & Space

Can someone help me sove x^4-6x^2+5=0 by completing the square. also, can you explain it to me?

2006-12-06 10:51:21 · 6 answers · asked by Carley 3 in Mathematics

I have a few ideas. They're probably wrong but here goes.

1) Maybe because animals lived so long back then and maybe if we lived 900 years like Adam we would be huge, too.

2) Maybe because there was more oxygen in the air back then.

3) Maybe living things just grew bigger before the asteroid hit that killed them off. After it hit it changed the molecule structure of things so they began to grow smaller.

4) Maybe they had so much space to roam, kind a like fish grow large in a large fish tank and stay small in a smaller one.

What are some opinions on this?? Any other ideas?

2006-12-06 10:48:13 · 11 answers · asked by Anonymous in Zoology

2006-12-06 10:47:18 · 3 answers · asked by Anonymous in Biology

Sorry guys this is for school again please help I'm almost done!!!!

2006-12-06 10:46:34 · 3 answers · asked by Alice C 4 in Astronomy & Space

2006-12-06 10:46:27 · 2 answers · asked by maaaaa5j 1 in Mathematics

2006-12-06 10:45:49 · 8 answers · asked by GennyMac 1 in Zoology

Please help me solve the following 2 problems. I need to understand how to do it.

1. Write the balanced chemical equation, write the overall ionic equation, identify the spectator ions and possible precipitates, and write the net ionic equation for each of the following reactions.
a. mercury(II) chloride (aq) + potassium sulfide (aq) ----->
b. sodium carbonate (aq) + calcium chloride (aq) ----->
c. copper(II) chloride (aq) + ammonium phosphate (aq) ----->

2. Identify the spectator ions in the reaction between KCl and
AgNO3 (3 = subscript) in an aqueous solution.

Thanks so much for anyone who is willing to help me.

2006-12-06 10:45:44 · 3 answers · asked by Tiffany 3 in Chemistry

IM DOING A MODEL OF THE PLANET MARS IN MY SCIENCE CLASS AND I NEED TO KNOW WHAT COLOR PHOBOS AND DEIMOS (MAR'S MOONS) ARE BECAUSE I NEED TO PAINT THEM THAT COLORSO DOES ANYONE KNOW WHAT COLOR THEY ARE ?? IF YOU DONT THEN PLEASE DONT ANSWER THIS QUESTION

2006-12-06 10:45:24 · 3 answers · asked by Life can be amazing. 2 in Astronomy & Space

2006-12-06 10:44:04 · 6 answers · asked by philip e 1 in Astronomy & Space

2006-12-06 10:43:46 · 4 answers · asked by rosalyn h 1 in Astronomy & Space

2006-12-06 10:43:30 · 3 answers · asked by Eddy 2 in Mathematics

ok please answer this question how does a balanced chemical equation illustrate that mass is never lost or gained in a chemical reaction.

2006-12-06 10:42:31 · 2 answers · asked by ghani k 1 in Chemistry

Does anyone know a website where u could find the compound name, for example CaCO3 is for Calcium Carbinate

2006-12-06 10:42:24 · 3 answers · asked by Ballerina 5 in Chemistry

02pie

2006-12-06 10:41:45 · 5 answers · asked by Eddy 2 in Mathematics