Science & Mathematics - 28 December 2007

2007-12-28 05:15:03 · 4 answers · asked by Anonymous in Earth Sciences & Geology

I am building a pole barn and I need to be sure that the corners are square can anyone tell me the how this can be accomplished. The measurements are 16' x 20'.

2007-12-28 05:13:35 · 3 answers · asked by Anonymous in Mathematics

thanks :)

2007-12-28 05:13:28 · 5 answers · asked by Lilyan 1 in Chemistry

I personally don,t. Its just another excuse to tax us

2007-12-28 05:10:47 · 22 answers · asked by elfy1960 2 in Weather

2007-12-28 05:10:06 · 4 answers · asked by grahmcracker 1 in Biology

2007-12-28 05:03:24 · 11 answers · asked by Anonymous in Astronomy & Space

thank you! i couldnt find the square root key

2007-12-28 05:00:57 · 4 answers · asked by Christina S 1 in Mathematics

2007-12-28 04:59:41 · 34 answers · asked by Ianqprsmith 1 in Geography

Let´s say we build and populate excessively on the western side of the caribbean plate. Could that cause the plate to tip, thus raising the eastern side upwards?

2007-12-28 04:58:47 · 4 answers · asked by Anonymous in Earth Sciences & Geology

2007-12-28 04:56:52 · 1 answers · asked by HIMANSHU A 2 in Mathematics

My father was in the Navy before they had radar. These big ships don't turn easily and the officers had to worry about worry about running into other ships. My dad taught me a trick about avoiding collisions.

Just using eyesight and knowing where the other ship was in relationship to their bow, how could they tell if they were on a potential collision course?

2007-12-28 04:52:04 · 3 answers · asked by Frst Grade Rocks! Ω 7 in Physics

I can't imagine this thing...is it related to potential energy...????OR WHAT?

2007-12-28 04:50:54 · 11 answers · asked by udit c 2 in Astronomy & Space

How did you learn to simplify radicals (like simplifying sq.rt.48 to 4 sq.rt.3 or cube root 48 to 2 cube root 6)

I think I discovered a new way to simplify radicals that is simple, easy, works every time, and with slight modification, can work for roots of any power (cube roots, 10th power roots, etc.). I want to see if anyone else has learned how I do it though.

2007-12-28 04:50:11 · 3 answers · asked by hillhavengirl 2 in Mathematics

Are dinosaurs still alive because i petted a baby triceratops 3 days ago i am not mentioning where but the people that had the dinosaur said there is an island in Malaysia with dinosaurs there were thousands of people at this place that pet it as well it really looked and somehow felt like a dinosaur it wasn't a robot and it was alive so is there really places where they keep dinosaurs also the person holding the dinosaur said it will grow to the size of a small school bus.

2007-12-28 04:49:31 · 13 answers · asked by Parth B 2 in Zoology

How does the rational roots theorem show that the roots of this function are all irrational?

f(x)= x^3-30x^2+275x-720

I know rational roots theorem is finding out all possible roots by taking all the factors (p) of the constant, and dividing it by all the factors (q) of the highest power. In otherwords, all possible roots = (p/q)

But since q can only be 1 here, how are all the roots "Irrational"?

2007-12-28 04:47:59 · 3 answers · asked by yayaya 3 in Mathematics

A wild animal preserve can support no more than 120 elephants. 33 elephants were known to be in the preserve in 1980. Assume that the rate of growth of the population is

dP/dt = 0.0007P(120 - P)

where time is in years. Find a formula for the elephant population in terms of t.

idk if this stuff will help but here are some equations...

dP/dt = kP(M - P)

P = M / 1+Ae^-(Mk)t

Let 1980 = t = 0

plz explain if u can and steps would be awesome.... thank you

2007-12-28 04:44:35 · 3 answers · asked by Alex M 1 in Mathematics

Can you show mathematically why it is or isn't possible? By a "smooth, wavy edge", I mean a non-straight, undulating edge with no creases running into it, i.e., the wavy edge is the only crease in the paper.

2007-12-28 04:44:01 · 4 answers · asked by Scythian1950 7 in Mathematics

2007-12-28 04:39:11 · 7 answers · asked by Ryan P 1 in Engineering

Is my Doctor looking for something?
I see a pediatrician (I'm 13) and I have seen her ever since I was 4, but whenever I see her she always looks like she's looking for something on me. She just kind of looks at me. What can she tell by looking at me? My friend (who see's her also) say's that she could be seeing if your flushed, or pale or something but we're clueless and curious.

Be Serious. Most ideas gets best answer! Also, don't be afraid to put some medical term in there (I can google it) if you are a doctor or a nurse......Thank you!

And happy new year!

Also, I know I've posted this question before but I am not getting answers. Please do not answer if you've been one of the few people who answered before!

2007-12-28 04:38:10 · 5 answers · asked by Josephina 2 in Medicine

it is given that a,b, and c satisfy the following conditions:
i) abc is not equal to 0
ii) (a+b)/c = (b+c)/a = (a+c)/b = p
prove that the straight line y=px+p passes through the 2nd and 3rd quadrants.

2007-12-28 04:37:53 · 3 answers · asked by Y T 1 in Mathematics

Radio Shack 29 range digital multimeter or DVM

web: A precise and reliable multimeter. This 29-range digital multimeter is a compact, auto-ranging, digital multimeter ideal for testing in the field, lab, shop or home. It measures AC and DC voltage up to 600V, AC and DC current up to 10A, resistance up to 40M ohm, and tests 1.5V C, D, AA, AAA and 9V batteries.


Continuity buzzer lets you quick-check cords, fuses, connectors and more
Diode-check tests semiconductors for opens and shorts

2007-12-28 04:30:20 · 5 answers · asked by Dan 2 in Engineering

the problem is

2cosx+sinx=0

if you could please show me the steps and answers. i need the answer between 0 and 360 degrees

2007-12-28 04:29:23 · 4 answers · asked by Brittany L 1 in Mathematics

There are 5 regular Platonic solids in 3D space. How many regular polytopes are there in complex 3D space? A complex 3D space is where 3D coordinates (x,y,z) are of complex numbers x, y, z.

2007-12-28 04:28:53 · 1 answers · asked by Scythian1950 7 in Mathematics

I don't understand infinity at all, can you please explain the end behavior of x squared, x to the third.

2007-12-28 04:28:13 · 2 answers · asked by dimitri 3 in Mathematics

2007-12-28 04:25:52 · 4 answers · asked by Vinny L 3 in Chemistry

Okay..Please help...

Matt's rectangular patio measures 9 fett by 12 feet.He wants to increase the patio's dimensions so its area will be twice the area it is now. He plans to increase both the length and the width by the same amount ,x. Find x, to the nearest hundredth of a foot..

How would I go about doing this..Please help..I appreciate the help..

2007-12-28 04:24:42 · 8 answers · asked by Anonymous in Mathematics

Anyone know?

2007-12-28 04:22:39 · 9 answers · asked by slıɐuǝoʇ 6 in Other - Science

2007-12-28 04:21:12 · 2 answers · asked by John L 1 in Other - Science

Let n ≥ 2 be a positive integer. Initially, there are n fleas on a horizontal line, not all at the same point.

For a positive real number λ, define a move as follows:

Choose any two fleas at points A and B, with A to the left of B;

let the flea at A jump to the point C on the line to the rightof B with BC/AB=λ.

Determine all values of λ such that point M on the line and any initial positions of the n fleas, there is a finite sequence of moves that will take all the fleas to positions to the right of M

2007-12-28 04:20:14 · 2 answers · asked by http://www.b-1st.com 1 in Mathematics

2007-12-28 04:18:55 · 6 answers · asked by screaming_weasel9 1 in Chemistry