Mathematics - 27 August 2007

Well, even if you construct a heptagon, and you divide that way, there is an error. Angle is 51.428571 and period is repeting "428571". So we dont have 100% sure division of a circle. Do you have an idea? This is a centuries and centuries old problem, Karl F. Gauss and Kepler also. If you say Circumference is 21, and divided by 7 would be 3 then diametar of that circle is 2.228169203286535

http://www.geocities.com/antidummy/sub/measurement.html

http://www.geocities.com/robinhuiscool/heptagon.html

http://www.broug.com/polygons.html

http://math.about.com/library/blcirclecalculator.htm

2007-08-27 19:13:14 · 4 answers · asked by Dominican Republic 2

A rancher buys 100 live animals for $100. Chickens cost $.50 each, goats cost $3.50 each, and cows cost $10 each. How many of each did the rancher buy? Is more than one combination possible?

2007-08-27 19:05:39 · 12 answers · asked by Mz_Monroe 3

Hey guys thanks for this!

I'm just having a hard time with this question.

Find the coordinates and nature of the turning point(s) of the curve:
y = x^3/3 - x^2 - 8x + 3.

thank you soo much for this!!

2007-08-27 18:53:40 · 8 answers · asked by DramaQueen22 3

a: the slope and the y-intercept of the line
b: two points on the line
c: the slope of the line and a point on the line that is not the y-intercept

(each letter should have a different answer)

2007-08-27 18:50:45 · 1 answers · asked by Anonymous

PLease show me step by step PLease im soo lost in Square roots

2007-08-27 18:08:02 · 10 answers · asked by Paul Aka-Twinkie 1

PLease show me step by step PLease im soo lost in Square roots

2007-08-27 18:07:31 · 8 answers · asked by Paul Aka-Twinkie 1

Why when you multiply a complex nbr by its conjugate do you need absolute value signs? i.e

u*u(c) = |u|^2 - where u(c) is the complex conjugate of u (because I can't figur how to get the bar on top of the u!).

Obviously u*u=u^2, but what's the point of the abs value since a squared number is not negative?

I might be missing something blindingly obvious here......

2007-08-27 18:00:51 · 3 answers · asked by Anonymous

so here's the question...

Consider the phrase, "The quick brown fox jumped over the lazy dog." Which details of this situation would a physicist who is modeling the path of a fox ignore?


it's probably really easy. but im way tired. can anyone help?

2007-08-27 18:00:23 · 3 answers · asked by Monica 1

I am given sin 60 degree = (sq root 3) / 2, use the trig identities to find the exact values of

a) cos 30 degree

b) cos^2 60 degrees

c) sec (pi / 6)

d) csc (pi / 3)


please help and explain this to me, the book has a paragraph for an explain and does a crappy job at explaining it as well.

THANKS!

2007-08-27 17:55:31 · 4 answers · asked by Anonymous

Find and then simplify the Difference Quotient for the following functions:

1. f(x) = 4x - 2
2. f(x) = 5/( x + 2)
3. f(x) = sqrt(2x - 3)

If at all possible, please work out the steps too. It wont do me much good to just have the answers. Its been a while since Ive had to do this.

2007-08-27 17:42:29 · 1 answers · asked by qwerty 2

CAn u show me step By thep PLizz

2007-08-27 17:41:20 · 4 answers · asked by Paul Aka-Twinkie 1

Math proble can u show me step bye step =D

2007-08-27 17:40:10 · 4 answers · asked by Paul Aka-Twinkie 1

2007-08-27 17:38:48 · 5 answers · asked by DAVID P 1

ok so I have to find the remaining 5 functions, I am given sin = (sq root 3) / 4

so a^2 +b^2 = c^2
a^2 + sq root 3^2 = 4^2
a^2 + 3 = 16
a = sq root 13

cos = sq root 13 / 4

tan = sq root 3 / sq root 13

csc = 4 / sq root 3

sec = 4 / sq root 13

cot = sq root 13 / sq root 3

did I do this correctly??

please help / explain if I didn't . . . thanks!!

2007-08-27 17:28:49 · 3 answers · asked by Anonymous

* = raised to the power of
Ok sooo it starts with (x+h)*3 - 2 - (x*3 - 2)

Then you cube the (x+h), right, and that ends up being

hx*3 + 2h*2x*2 = h*3x - 2 - x*3 + 2

So the twos cancel out and it's just

hx*3 + 2h*2x*2 = h*3x - x*3

right?

Oh yeah and this has all been over h

So the book has the answer as 3x*2 + 3xh + h*2
But I have no idea how...

Help?

2007-08-27 17:25:06 · 6 answers · asked by Anonymous

Hello, I have a few problems for precalc that i dont really understand. Thanks for your help in advance
Find the Inverse:
1. f(x)=1/1+6
2. f(x)=3-x^2
Find the Function
f(x)=x^3-12x Max (___,____) Min (___,___)
The domain of the Function
f(x)=sqrroot x^2-49



I've looked in a text book, i've looked at all notes, and i reviewed what you said... however, i just enrolled into this school. i dont have notes going back that far and i hardly understand it. i dont know what im doing wrong but i really just need the answers.

2007-08-27 17:23:41 · 3 answers · asked by Anonymous

I'm thinking is this formula: (dy/dx) = (dy/dt)/(dx/dt), hence:
x(t) = 3t^2 + 2 = (dx/dt) = 6t
y(t) = 2t^3 - 1/2 = (dy/dt) = 6t^2, then plug in the respective values to the formula above: (6t^2/6t), am I on the right track? any hint is appreciated, thanks!

2007-08-27 17:15:50 · 3 answers · asked by Jorm 3

the sum of the present ages of angie and her mother is 64. in eight years angie will be three-fifths as old as her mother at that time. find the present ages of angie and her mother.

whoever answers this please explain it fully and how i come up with a formula

2007-08-27 16:33:57 · 5 answers · asked by Anonymous

Find the median. 15, 27, 13, 40, 39, 41, 28

2007-08-27 16:23:47 · 17 answers · asked by Anonymous

Please help me and explain the answer. ty!

2007-08-27 16:11:39 · 2 answers · asked by Anonymous

so
7/10= 3/x+1

2007-08-27 16:11:06 · 16 answers · asked by Jake H 1

I came up with sq root 98 but my friend got 7 sq root of 2, are either of us right? thanks!

2007-08-27 16:10:54 · 3 answers · asked by Bucky 1

Solve the equations or inequalities, give exact answers....help please

2007-08-27 16:10:17 · 8 answers · asked by Anessia M 2

2007-08-27 16:09:43 · 8 answers · asked by Anonymous

2007-08-27 16:02:45 · 18 answers · asked by Jake H 1

(-2x^2)^3(4x^3)^-1 and (3x)^-2 (3x^2/2)^2

2007-08-27 15:53:06 · 6 answers · asked by Anonymous

in maths,topic of limits....

we know,,if limit x->0 tanx/x=1
sinx/x=1
cosx/x=1 if limit x tends to zero
my question is this ,is that possible
cotx/x=1
cosecx/x=1
secx/x=1 iff limit x tends to zero

2007-08-27 15:52:32 · 2 answers · asked by Anonymous

How do I identify the conic and write it in standard form?

Heres some examples:
x^2+4y^2=16
x^2+y^2-2x+4y+1=0
2x^2-4x+y+5=0

2007-08-27 15:34:34 · 1 answers · asked by aroddick46 1

Given one root of the equation, find the others.
a^3-3a^2+a+5=0
one root= 2-1

I have no clue on this one.....

2007-08-27 15:31:06 · 3 answers · asked by aroddick46 1

please help me

2007-08-27 15:24:50 · 5 answers · asked by victoria 1