Science & Mathematics - 28 August 2007

2007-08-28 09:31:01 · 11 answers · asked by skippl80 1 in Mathematics

x = 8 cos(theta) , y = 9 sin (theta)

(a) Eliminate the parameter to find a Cartesian equation of the curve.

2007-08-28 09:26:40 · 2 answers · asked by Anonymous in Mathematics

To expand on my earlier question about finding unknown angles, I had one more question. I have a triangle similar to my last question. One length is known, with the opposite angle unknown. Another angle is known, with an unknown opposite side. One side and its opposite angle are both unknown. I need to find the unknown angle whose opposite side is also unknown, given the known variables. How can I find this angle?

2007-08-28 09:25:28 · 1 answers · asked by Confused about life 2 in Mathematics

Because there is a cracker of one right outside my window. looking east.

2007-08-28 09:23:01 · 10 answers · asked by Old Man of Coniston!. 5 in Astronomy & Space

We've never done any sort of problem like this, and it's the beginning of the year and I'm getting extremly confused...

1) Look up the Taylor (or Maclaurin) series for the following functions:

e^x

cos x

sin x

This "series" is an infinitely long polynomial that ("strangely") approximates a function that is not a polynomial. For now, you can just copy them down. Try graphing the first 4 or 5 terms of the polynomial if you want to see how they behave.


So now I've tried looking up a bunch of stuff, but I keep getting extremely confused!!

2007-08-28 09:20:37 · 5 answers · asked by Dougie Fresh 2 in Mathematics

thanks!!!!

2007-08-28 09:19:45 · 2 answers · asked by JulyFire 5 in Mathematics

i think its a geologist but im not sure if it is something else. please no rude comments and thanks for the help!

2007-08-28 09:19:40 · 3 answers · asked by xodanceox 2 in Earth Sciences & Geology

Does anyone know how to make a paper tower that is about three paper lengths tall and uses no tape or such...just paper??? ...It also has to be FREESTANDING (for about 5-10 seconds)

2007-08-28 09:18:35 · 4 answers · asked by Katie-bo 2 in Engineering

2007-08-28 09:18:13 · 4 answers · asked by Dougie F 1 in Engineering

2007-08-28 09:17:33 · 5 answers · asked by andy b 3 in Engineering

TEACHER DIDN'T TEACH IT AND I HAVE NO CLUE HOW TO DO THESE PROBLEMS.....1.A BUS TRAVELED FOR 2H @ R MI/H, THEN DECREASED THE SPEED BY 10 MI/H AND TRAVELED FOR 1 MORE HOUR. HOW FAR DID THE BUST GO?

2.AN ANGLE HAS MEASURE X TO THE 0 POWER. FIND THE AVERAGE OF THE MEASURES OF A COMPLEMENT AND A SUPPLEMENT OF THE ANGLE.

US V=1/3BH
3. A PYRAMID HAS A RECTANGULAR BASE. FIND THE VOLUME IF THE LENGH AND WIDTH OF THE BASE AND THE HEIGHT ARE 3 CONSECUTIVE ODD INTEGERS AND X IS THE LARGEST INTEGER.

4. JORGE BOUGHT S 40 CENT STAMPS AND TREE TIMES AS MAY 25 CENT STAMPS. HOW MANY DOLLARS DID HE SPEND?

5. THE LENGTH OF A RECTANGULAR FIELD IS 45FT GREATER THAN ITS WIDTH, W FT. HOW MUCH FENCING IS NEEDED TO ENCLOSE THE FIELD AND DIVIDE IT INTO PARTS?

2007-08-28 09:17:06 · 2 answers · asked by beachgirl0309 2 in Mathematics

What percentage of 306,000 equals 8,200? and how do you do the math to get that number? Thanks

2007-08-28 09:16:38 · 26 answers · asked by Anonymous in Mathematics

how do you solve bx - cx = -c solving for x and then finding the restrictions

2007-08-28 09:14:51 · 5 answers · asked by Anonymous in Mathematics

2007-08-28 09:11:48 · 27 answers · asked by Anonymous in Mathematics

im trying to think of something easy to make ! and easy to sell.
help me out! i wont forget you if i get rich :)
post ideas to my email me1300@yahoo
im mechanicaly inclined , ive thought of great ideas before only to find they have already been done or pending.

2007-08-28 09:11:22 · 2 answers · asked by Anonymous in Engineering

I NEED DETAILS!

2007-08-28 09:10:29 · 6 answers · asked by Dobe777 2 in Biology

-5 ( 6X-5) + 9X^2 +3 =3
9X^2 - 30X +25 = 0
first i set it equal to 0
then factor
here is where i get stuck
(9X + ?) (X +?) = 0
where the question marks are, I need to put numbers that i thought multiplied together and added together were supposed to equal -30 and 25.
thanks if you can help

2007-08-28 09:09:32 · 3 answers · asked by Boo Radley 4 in Mathematics

2007-08-28 09:05:59 · 6 answers · asked by d_love4u 1 in Physics

I need help finding the y-intercepts, and the vertexs.

1) find the vertex and the y-intercept.
y=2x²+4x+2

2) find the vertex and the y-intercept.
y=-3x²+12x-9

How do you find it? Show/work explain please.
3)
For the 1) I got 2(x²+2x+1) is y=2(x+1)²+1 for the vertex. Which is (1,-1) but its wrong why?

2007-08-28 09:02:21 · 2 answers · asked by Anonymous in Mathematics

2007-08-28 09:02:21 · 1 answers · asked by TiNk b 1 in Earth Sciences & Geology

Really the domain and range for this function, whether it is even or odd and what the graph looks like. Also what is the limit as the function approaches infinity.

2007-08-28 09:01:09 · 1 answers · asked by Lauren S 1 in Mathematics

If a ball is thrown into the air with a velocity of 40 ft/s. it's height in feet after t seconds is given by y=40t-16t^2.

a) find the average velocity for the time period beginning when t=2 and lasting:

i) 0.5 s
ii) 0.05 s.
iii) 0.1 s.
iv) 0.01 s.

2007-08-28 08:59:57 · 1 answers · asked by Caramel 2 in Mathematics

what does the sign < mean

2007-08-28 08:58:17 · 5 answers · asked by Anonymous in Mathematics

2007-08-28 08:57:56 · 1 answers · asked by ♥snapple♥ 1 in Astronomy & Space

I'm a tad stuck with the following problem

lim theta^2 / sin(theta)

as theta -> 0

any ideas?

2007-08-28 08:57:07 · 2 answers · asked by AppleCard! 2 in Mathematics

Hospital policy, sometimes encouraged by legal precautions, often requires a patient to have an IV (intravenous infusions) to maintain steady levels of a patient's blood pH. For various reasons, a patient may not want one. Should a hospital insist that patients accept IV fluids? Should doctors side with the patient or with hospital policy?

2007-08-28 08:56:19 · 3 answers · asked by wonderwoman 1 in Medicine

2007-08-28 08:55:41 · 5 answers · asked by Laurel D 1 in Chemistry

http://www.youtube.com/watch?v=ezmM1WnkbmA

2007-08-28 08:51:13 · 42 answers · asked by Anonymous in Paranormal Phenomena

2007-08-28 08:47:44 · 7 answers · asked by theartisttwin 5 in Mathematics

Its a file that my professor sent to us so i cant copy and paste on here but i can send through email. Normally i would not ask for help with any school subject, but math is a very weak point for me always has been and tutoring isnt working im failing math.. Someone please help me with my homework. Theirs not very many problems and shouldnt take very long especially if you know how to do them.

2007-08-28 08:45:41 · 1 answers · asked by Anonymous in Mathematics