Science & Mathematics - 16 December 2006

There is a triangle ABC with base BC. The side BA is extended to D and the side BC is extended to E such that AE bisects angleCAD. Find the length of CE, is AB = 10cm, BC = 12cm and AC = 6cm.

I know it has something to do with similarity of triangles but I don't know the method to get the answer. Please help ASAP.

2006-12-16 12:42:21 · 4 answers · asked by Akilesh - Internet Undertaker 7 in Mathematics

2006-12-16 12:40:55 · 25 answers · asked by pikuuu 1 in Physics

Car selling. Ronald wants to sell his car through a broker who charges a commission of 10% of the selling price. Ronald still owes $11,025 on the car. Ronald must get enough to at least pay off the loan. What is the range of the selling price?

2006-12-16 12:36:51 · 6 answers · asked by salarian2001 2 in Mathematics

2006-12-16 12:33:55 · 13 answers · asked by danholmes7 1 in Geography

can you eat and swallow upside down?

2006-12-16 12:32:22 · 8 answers · asked by Anonymous in Biology

Biology

2006-12-16 12:31:20 · 3 answers · asked by Rob P 1 in Biology

What is equation of the line between the points (16,5) and (4,8)?

2006-12-16 12:31:12 · 7 answers · asked by luv2bactin 2 in Mathematics

2006-12-16 12:30:26 · 7 answers · asked by Anonymous in Astronomy & Space

Hey, I need to know what the difference between simple and gram staining is and how can you differentiate between the two cells using both techniques?

2006-12-16 12:29:36 · 1 answers · asked by Anonymous in Biology

2006-12-16 12:28:53 · 4 answers · asked by mascga3 1 in Mathematics

4(cos^6x+sin^6x) = 1+3cos^2 2x

2006-12-16 12:26:55 · 1 answers · asked by Becker 1 in Mathematics

Use a graphing utility to graph the function over the indicated interval and approximate any local maxima and local minima.

f(x) = 2+8x-x^2
f(x)= -x^2+8x+2
(-5,5)
Where does the (-5,5) come into play?

2006-12-16 12:26:36 · 3 answers · asked by !*! 2 in Mathematics

Ok so i know there was a huge disoute betwwen these two mathematicians, but i need someone to explain to me what really happened (e.d, info in the dispute over the origins of Calculus) and the effects on mathematics in Europe and England.

Also if you could provide some info on the different notation these mathematicians used, that would be great!! (please write your source if you find anything in the web)

2006-12-16 12:21:16 · 4 answers · asked by Sir Excalibur 2 in Mathematics

im posting this question because i want to see if anybody else here have witnessed a ufo before. When i was in elementary school i think in 4th or 5th grade? i was walking home with my mom, it was like at 6 at night and it was dark, anyways i saw above me a HUGE plate craft hovering in the sky above me. there lights on the spaceship, little red dotted lights around it. i was watching it then slowly it disappeared.

this probably will sound fictional to some people but frankly it is not. why would i lie to you guys? i dont know you and you dont know me and i have no reason what so ever to trick you and plus i have nothing to gain. i kinda dont believe this myself but i really witnessed this and i was wondering if anybody else has???

2006-12-16 12:21:05 · 6 answers · asked by Anonymous in Astronomy & Space

I missed the lesson, i just need to know what do after finding the limiting reactant/reagent.

2006-12-16 12:20:44 · 1 answers · asked by Buzz Killington 1 in Chemistry

2006-12-16 12:19:39 · 12 answers · asked by Robots 4 in Mathematics

My mom has recently been diagnosed with very high blood pressure. She has been on Toprol XL -- didn't work. she was on Lisinopril -- didn't work. The ONLY thing that brings it down is Clonidine -- 0.1mg 4X a day (it doesn't last long once ingested). If she goes much over 4 hours between doses, it begins to creep up to and over 200/85-95.

the Clonidine makes her feel completely draggy and "loopy." She just has no energy and feels like she can't think or remember things.

I'm real concerned about her. The doctor tells us we should start seeing some much better numbers in the next 2 weeks and that the fatigue and fogginess should also wear off by then as well.

Can anyone offer any advice or comments? Are all of the above symptoms normal when starting BP meds?

Thanks!

2006-12-16 12:19:13 · 4 answers · asked by Gwendy68 1 in Medicine

magnetic flux doesnt make any sense to me,wat is exactly magnetic flux? some says it is the magnetic field strength times surface area that is proportional to the magnetic field. some says it is a property that takes magnetic field and extent of field into account. when i was doing questions, flux always appears,but i dont understand wat it really is.
chhers

2006-12-16 12:16:48 · 5 answers · asked by Anonymous in Physics

An 800kg car is at the top of mount wellington ( at a height of 1270m). if the car were allowed to roll down the mountain without the use of any brakes, how fast would the car be travelling when it reaches seal level? There is a coefficient of (dynamic) friction of 0.01 between the road and the car on the way down the mountain.

please help me...if u can explain how to do it that'd be a great help..10 points for best answer
thanx

2006-12-16 12:15:10 · 3 answers · asked by bobby19_9 1 in Physics

help...
find the smallest of three consecutive integers whos sum is less than 86

2006-12-16 12:15:05 · 4 answers · asked by originalsamsane 1 in Mathematics

Yeah I'm in 10th grade and I have a Trig/Precalc Final on Monday. I kinda forgot how to do this so I was wondering if anyone could solve it by working out the steps so I can tell what your doing. Thanks a bunch.

2006-12-16 12:14:39 · 4 answers · asked by soccerwarrior00 3 in Mathematics

2006-12-16 12:13:00 · 2 answers · asked by Nate F 1 in Astronomy & Space

2006-12-16 12:09:37 · 6 answers · asked by Tay 1 in Physics

2006-12-16 12:03:15 · 5 answers · asked by KLA 1 in Mathematics

1)TEXAS MAKES PLATES WITH THREE # AND 4 LETTERS
2) YOU CAN USE # 0-9, AND ALL LETTERS EXCEPT I AND O.
3) IN ANOTHER SITUATION YOU CANNOT HAVE 0 FOR THE FIRST NUMBER.

HOW MANY PLATES CAN YOU MAKE IN BOTH SITUATIONS?
PLEASE TELL ME HOW YOU DID IT

2006-12-16 12:01:55 · 5 answers · asked by abcd 2 in Mathematics

2006-12-16 11:58:39 · 2 answers · asked by iqbalkhanayesha 2 in Biology

When 0.387 grams of chromium, Cr(s) is heated in excess Cl2(g), 1.178 grams of a single solid compound is formed. Assuming that all the chromium reacts, what is the empirical formula of the compound?

Answer is CrCl3, but I don't know how to solve it, can someone help me.... thanks..

2006-12-16 11:57:53 · 2 answers · asked by Anonymous in Chemistry

There are some days when Karol tells only the truth and there are some days when he always lies. Today Karol said 4 from the following sentences.

a)The number of my friends is a prime number
b)I have as many girl friends as boy friends
c)My name is Karol.
d)I always tell the truth
e)Three of my friends are older than I am.

Which of the above sentences did Karol not say today?

2006-12-16 11:56:46 · 3 answers · asked by mascga3 1 in Mathematics

2006-12-16 11:56:31 · 7 answers · asked by Stay Puft Marshmallow Man 2 in Mathematics

a train locomotive (m=23500) pulling 3 identical cars accelerates at 0.225m/s^2.

a)what force does the first car pull on the second (no friction)

b) if the friction on each car is 1100N, what must be the force that the locomotive exerts against the rails?

2006-12-16 11:54:25 · 3 answers · asked by Anonymous in Physics