Mathematics (Science & Mathematics) - 24 September 2006

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The line of intersection of the planes x + y + z = 1 and x + z = 0?

Find parametric equations and symmetric equations for the line.

2006-09-24 14:36:02 · 3 answers · asked by eurozzang10 1

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How do you simplify odd fractions?

exp:19/12

2006-09-24 14:32:08 · 6 answers · asked by Anonymous

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can someone give me an example (or more) of how geometry can be used in real life?

im writing a paper on why analytical geometry is important but i keep getting stuck on examples of how it's useful. can anyone give me an example of how geometry is used in the real world.

2006-09-24 14:28:32 · 10 answers · asked by jerse15 3

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4cos^3(2x) dx Evaluate the integral?

2006-09-24 14:22:58 · 4 answers · asked by Emily B 1

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Two mathemmaticians Mr. Pascal and Mr euler are walking down the steet. Here is a portion of their conversatio

Pascal: How many children do you have?
Euler: Three
Pascal: How old are they?
Euler: The product of their ages is 36
Pascal: That doesn't help me
Euler: The sum of their ages is the same as the house number on that house across the street.
Pascal: It's still impossible for me to tell their ages
Euler: My eldest loves chocoalte cake.
Pascal: Aha! Now I know how old they are.

How did Pascal know? How old are Euler's children? what is the number of the house?

2006-09-24 14:21:40 · 5 answers · asked by Matt T 1

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how can my child learn her multiplication facts quick is there a website or something please help?

2006-09-24 14:20:01 · 7 answers · asked by KS Tech. 3

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need maths help urgently! algebra.plz...plz..?

(x+y)^2 - (x-y)^2

2006-09-24 14:20:00 · 6 answers · asked by elli 1

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How do I prove that if the rows of matrix A are linearly dependent, then so are the rows of matrix AB?

2006-09-24 14:15:16 · 3 answers · asked by chica1012 2

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ok one more question i need to add a liquid at 0.5% by weight and the weight is 8 ounces how much to i add?

2006-09-24 14:02:20 · 2 answers · asked by incabus 1

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is the line through (4, 1, -1) and (2, 5, 3) perpendicular to the line through (-3, 2, 0) and (5, 1, 4)?

2006-09-24 14:01:36 · 4 answers · asked by eurozzang10 1

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what is 5069 divided by 4?

break it down step by step

2006-09-24 14:00:04 · 8 answers · asked by tina1_94 1

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why do we use x,y,z for variables??

2006-09-24 13:44:19 · 12 answers · asked by Anonymous

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Pre-calculus Question: Is there a way to find asymptotes alabraeically if given an equasion in f(x) formation?

2006-09-24 13:41:52 · 6 answers · asked by joeyhernandezjazz 1

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What is next in the pattern, -4m, -m^4, 2m^9, 5m^14?

I know that it's 8m but I don't know the exponent. Thank you.

2006-09-24 13:19:49 · 7 answers · asked by Anonymous

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A metric unit of mass?

2006-09-24 13:01:06 · 8 answers · asked by Anonymous

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what is the differences in Celsius and Fahrenheit?

2006-09-24 13:01:02 · 8 answers · asked by Eric E 1

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how many megahertz in a gigahertz?

2006-09-24 12:52:36 · 5 answers · asked by chiefsmom2000 1

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How is the Rubik's Cube related to Math/Physics?

I've known how to solve the Rubik's cube very quickly for nearly a year now and whenever I solve it in front of some they always ask if I'm really smart, what level math i'm in, etc.

To me the Rubik's cube has nothing to do with these subjects at all so why do they make these assumptions?

I mean, you really don't need to be smart to solve the cube, you just need to spend a bit of free time.

2006-09-24 12:48:22 · 7 answers · asked by dan 1

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The Fuel Tank Problem?

Imagine you have cylindrical tank 4 units in diamiter and and 10 units long. When the installation company put the tank in the ground they laid it on its side. Now you must devise a measuring rod to put in the take in order to show the volume of fuel contianed within. What formula do you use to know how to make the measuring stick.

2006-09-24 12:48:17 · 4 answers · asked by Alan 2

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If a number is even is it an integer?

2006-09-24 12:46:03 · 9 answers · asked by RamsFan 3

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a number with 47 zeroes would be called what?

2006-09-24 12:44:19 · 13 answers · asked by DAVID M 1

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does anyone know what an isolated point is in algebra one?

i'm in 9th grade and i got confused on what a isolated point is, i was gone from school a few days and im sure the teacher explained what it was while i was gone, so does anyone know what it is?

2006-09-24 12:44:13 · 4 answers · asked by shorty_gurl1206 1

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2sec^4x dx Evaluate the integral?

2006-09-24 12:41:26 · 3 answers · asked by Emily B 1

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Oil and Gas: Please Solve and explain?

An outboard motor calls for a fuel mixture that has a gasoline to oil ratio of 50 to 1. How many pints of oil should be added to 6 gallons of gasoline?

2006-09-24 12:33:32 · 7 answers · asked by Paul B 1

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Solving Math Problems?

I am having some real hard troubles with rational expressions and things like that. How would I solve this equation to find x. Please give all the steps and explain if possible.

http://img216.imageshack.us/img216/312/problemza1.jpg

2006-09-24 12:28:21 · 6 answers · asked by Jack8274 1

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Angle between Two Vectors?

I have this vectors:
V= (2 5 -4)
W= (1 -2 -3)

V*W= 2*1+5*-2+(-4)*(-3) = 4

cos (V,W) = V*W / IVI * IWI

Can anyone explaind me how can I calculate the below part.

2006-09-24 12:19:12 · 7 answers · asked by Anonymous

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math question?

an arrow flies to the moon with an initial velocity of 55m/s. Its height after t seconds is given by H=55t-0.83t^2. WIth what velocity will the arrow hit the moon?

2006-09-24 12:14:52 · 9 answers · asked by Anonymous

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