Science & Mathematics - 13 August 2007

2007-08-13 09:08:56 · 10 answers · asked by Darrell 4 in Paranormal Phenomena

You are at the music store to buy some CDs. You have $45 to spend and
the store sells CDs for $12.99 each. Write an inequality that
represents the number, n, of CDs that you can buy without spending
more money than you have.

2007-08-13 09:08:31 · 5 answers · asked by Berry A 2 in Mathematics

in my prob and stats class today we, i got called on today to say something tht has a zero percent chance of happening in my life time.. and i said tht i will go to mars...she argued and said tht it could happen. then a kid said tht he will get a pet dinosaur..she said his was 100% correct cuz they were extinct..this was after she said their was 0% probability tht i will go to the moon..is my teacher retarded or wut? i wanna see her try to get in a rocket and go to mars lmao

2007-08-13 09:07:31 · 6 answers · asked by Anonymous in Astronomy & Space

Find the radius, diameter and circumference of a circle with an area of 64 pi cm2. Write your answers as decimals rounded to the nearest hundredth.

Find the circumference and area of a circle that has a rectangle inscribed inside it with sides that are 9 by 12 centimeters. Write your answer as decimals rounded to the nearest hundredth.

2007-08-13 09:05:16 · 8 answers · asked by Anonymous in Mathematics

2007-08-13 09:02:57 · 47 answers · asked by What the! 2 in Biology

http://en.wikipedia.org/wiki/Starchild_skull

2007-08-13 09:02:16 · 8 answers · asked by Darrell 4 in Paranormal Phenomena

also what is e career span (meaning not so competitive) of a typical engineering career? say fieldbus..

2007-08-13 09:01:33 · 3 answers · asked by Anonymous in Engineering

why is the grass green
why is dirt brown

2007-08-13 08:58:48 · 7 answers · asked by FREE HUGS 5 in Earth Sciences & Geology

A dog weighs 10 pounds. How many 5-mg tablets are needed to provide a dose of 7.5 mg/lb to the dog?

A. 5 tablets
B. 10 tablets
C. 15 tablets
D. 20 tablets

2007-08-13 08:58:18 · 19 answers · asked by Anonymous in Mathematics

2007-08-13 08:57:05 · 8 answers · asked by FREE HUGS 5 in Earth Sciences & Geology

2007-08-13 08:56:35 · 4 answers · asked by Bees around 1 in Zoology

The union set A, B and C is {1,2,3,4,5,6,7}, the intersection of Sets A, B, and C is {0}, (empty set) and Set A= {1,2,3,4}. If Set B contains a greater number of elements than does Set C, what is the largest possible value of the sum of the elements of Set B?

any ideas on how to do this?

2007-08-13 08:56:04 · 7 answers · asked by r5091 2 in Mathematics

a) 1 / v = 1 / u1 + 1 / u2 , find u1

b) 3^x = A, find A

c) s = ut + 1/2 (half) at^2, find a

2007-08-13 08:52:56 · 2 answers · asked by Anonymous in Mathematics

How many honest membes are in state assmebly?

2007-08-13 08:49:48 · 14 answers · asked by Alexander 6 in Mathematics

I need to know how to make real-world use of accelerometer measurements. We have a Summit Instruments 3-axis unit with a 1K rolloff frequency (hardware filtering cuts that back to about 100 Hz).

Just calculating gravity has proved to be more difficult than I had thought, as even with a very long low pass filter, I am still left with wiggles that can't possibly be from a change in gravity.

The integration error getting to velocity is huge, orders of magnitude larger than my known average velocity. Determining displacement remains just a dream.

I have had some success in caging my errors since I do have a known average velocity and can detect points in the data where all motion has stopped, providing me with some known zero velocity points.

Can anyone steer me in the direction of application-level references (theory books are pretty much useless)?

I keep running into Kalman filters. What is special about them and why would they be applied to the accelerometer problem?

2007-08-13 08:49:21 · 3 answers · asked by dogsafire 7 in Engineering

i have 5 tower cranes outside my window at different construction sites and they all position their cranes the same direction at the end of the day. is there a reason for this.

2007-08-13 08:49:02 · 4 answers · asked by joseph g 1 in Engineering

Wondering if there are fish, boats, sharks, whales, etc.. floating in the air (you know like cows in a tornado) and if hurricanes kill sea life as they go through the water. How deep does a hurricane go?

2007-08-13 08:45:47 · 6 answers · asked by RUNINTLKT 5 in Weather

When pigments are suspended in oil why doesn't the oil affect the colour of the pigment?

2007-08-13 08:42:15 · 3 answers · asked by beatme 3 in Chemistry

this is totally confusing. I dont know what they want. The problem is For the function f(x) = x with a power of two - 2x + 1
(a) find f(0)

(b) solve f(x) = 0

Can anyone help me with this one?

2007-08-13 08:39:53 · 12 answers · asked by Roger D 1 in Mathematics

Solve the equation.
(41)/(x) = 6 - (1)/(x)


Problem 2
Solve the equation.
(11)/(x) = 4 - (1)/(x)

2007-08-13 08:39:27 · 7 answers · asked by Anonymous in Mathematics

Let f: R--> R be continuous, periodic and non constant on R. Show that f has a fundamental period p >0. If f is constant, then it's trivial that f has no fundamental period. But I'm having trouble to prove the converse.

Thank you

2007-08-13 08:37:27 · 2 answers · asked by Rose 1 in Mathematics

This is rather intuitive, but I'd like help to give a formal proof.

Suppose f:R --> R is periodic and continuous on R. Then, f is uniformly continuous on R

Thank you

2007-08-13 08:33:41 · 3 answers · asked by Rose 1 in Mathematics

2007-08-13 08:33:28 · 27 answers · asked by b.plimmer 1 in Biology

2007-08-13 08:33:15 · 13 answers · asked by Anonymous in Astronomy & Space

2007-08-13 08:30:40 · 9 answers · asked by kalim 1 in Physics

Oil and Coal are called "fossil fuels". It is pretty clear where coal comes from. there are Peat bogs, then brown coal, then bituminous coal, then anthricite coal. There seems to be a pretty definate relationship.

Oil fields are found in Alaska, the North Sea, Gulf of Mexico, Persian Gulf, Venezuala, California, Canada. Your answer should include why the oil accumulates at these locations?

I would perfer serious answers from informed people.

Thank you.

2007-08-13 08:30:32 · 6 answers · asked by mtnhiker026 1 in Earth Sciences & Geology

Solve the equation.

(x - 7)/ (6) = (x + 3) / (7)



Problem 2

Solve the problem.
Two angles are supplementary if the sum of their measures is 180. If the measure of one angle is given by (31x/20) and the measure of its supplement is given by ( 7x/10), find the measures of the two angles.

62, 118
80, 100
40, 140
124, 56

2007-08-13 08:28:53 · 4 answers · asked by Anonymous in Mathematics

2007-08-13 08:28:31 · 20 answers · asked by Anonymous in Earth Sciences & Geology

2007-08-13 08:28:29 · 24 answers · asked by Jon C 6 in Weather

2007-08-13 08:27:01 · 4 answers · asked by gigi_sunflower 1 in Astronomy & Space