Mathematics - 12 October 2007

2007-10-12 05:42:46 · 10 answers · asked by collingbournekingston 4

Question Details: well my math teacher assigned us a project and since we are in geometry she wants a model of my house...so wee need to convert them...my question is do we converth them to feet into cm??

2007-10-12 05:37:38 · 9 answers · asked by Anonymous

The bisector of the angle opposite the base of an isosceles triangle bisects the base and is perpendicular to the base.

2007-10-12 05:34:31 · 5 answers · asked by Ruth Naomi Mariae R 2

If L is the dimension of length can you have sin(L) or is it just nonsense. If you can have it is the result dimensionless.

2007-10-12 05:31:34 · 7 answers · asked by eazylee369 4

2007-10-12 05:29:20 · 3 answers · asked by suzukiracer6789 1

2007-10-12 05:28:18 · 10 answers · asked by Anonymous

2007-10-12 05:24:05 · 6 answers · asked by suzukiracer6789 1

2007-10-12 05:22:16 · 16 answers · asked by jdjackson74 1

2007-10-12 05:22:13 · 4 answers · asked by Nap 1

2007-10-12 05:06:40 · 7 answers · asked by Anonymous

I need help to prove this please.
Integrate(from pi to pi) of sin(mx) sin(nx) dx is pi if n=m and the integration equals zero is n not equals to m.
Yes, it is integrating from +pi to +pi.
Please show me the proves. You can show either one. Thank you!

2007-10-12 05:01:12 · 3 answers · asked by the DoEr 3

2007-10-12 05:00:24 · 7 answers · asked by Anonymous

A curve has the equation y = 2cos x - cos 2x

(i) Given that sin 2x may be expressed as 2sin x cos x, find the x-coordinate of the stationary point of the curve and determine the nature of this stationary point.

Please show your workings clearly and explain..thks

2007-10-12 04:47:46 · 3 answers · asked by Anonymous

all i know is tht:
1) set equation to y---so y= x^3 - 7
2) switch x and y---- so x = y^3 - 7
3) solve for y
4) put in inverse notation

i do not know how to do number 3 or 4....for number 3, i need 4....thanks guyz for the help....i understand all the other ones....just this one i am confused on because of the y^3...

2007-10-12 04:47:03 · 5 answers · asked by Anonymous

To supply blood to all parts of the body, the human artery system must branch repeatedly. Suppose an artery of radius r branches off from an artery of radius R (r>r) at an angle θ. The energy lost due to friction is approximately this:

E(θ)=(csc θ/r^4)+((1-cot θ)/R^4).

Find the value of θ that minimizes the energy loss.

I'm not asking for the answer, I just need help in finding the derivative for the equation, so that I can solve for θ. That is how the book has the problem stated.

2007-10-12 04:45:55 · 2 answers · asked by Anonymous

2007-10-12 04:44:29 · 8 answers · asked by Anonymous

2007-10-12 04:41:32 · 4 answers · asked by Anonymous

2007-10-12 04:39:54 · 4 answers · asked by Anonymous

Find y' of y= 3x^-4 - 1/x^2

2007-10-12 04:39:23 · 6 answers · asked by jewel7962002 1

2007-10-12 04:38:20 · 5 answers · asked by Anonymous

30
60
90


The angles are 150* 120* 30* and 60*.

2007-10-12 04:32:04 · 2 answers · asked by Anonymous

2007-10-12 04:22:46 · 4 answers · asked by returnee 1

given the polynomial function of P(x)=3x^3+2x^2-4

2007-10-12 04:13:06 · 3 answers · asked by aprille cute 1

A=bh
A=(3 1/2)(2 3/4)

soooo i know i'm to x them after i do something to get a whole number... how?

2007-10-12 04:11:06 · 5 answers · asked by Anonymous

I need to know what the point is that is 5.44 away from point (7,3). Possibly one could use the distance formula. I would like to know how you got it also.

2007-10-12 04:08:56 · 5 answers · asked by rossmt66 2

find the zeros of this polynomial function

2007-10-12 04:06:52 · 2 answers · asked by aprille cute 1

it's been ten million years since i've done this sort of thing.

it's for a program to determine the number of intersections (points) in an even hex grid with a radius of x.

(for example: a grid of 7 hexes, x = 1.
for a grid of 91 hexes, x=5.)

thanks in advance!

2007-10-12 04:00:22 · 4 answers · asked by t.reed 1

2007-10-12 03:32:07 · 19 answers · asked by ANNASTACIA 1

Show that Aut (Z,+) has only two elements.

So I've figured out what the two elements are, f(x) = x and g(x) = -x. But I can't figure out how to prove that there are no other elements.

2007-10-12 03:27:23 · 2 answers · asked by Robert 3

Here's what I don't understand: if 1 car gan go 60 mph on a freeway with relative ease, why can't 1000 cars going in the same direction ALSO go 60 mph with relative ease? Why is it that, as more vehicles get added into the mix, the slower everyone seems to go? Is it simply the random mix of idiocy, people changing lanes, larger vehicles vs smaller, exiting & entering vehicles? And is it unavoidable human nature to gawk at a traffic accident, thereby slowing down the people behind you?
It seems like every day I hear traffic reports of accidents at the same locations & just wondering WHY??? And, with that knowledge, what can be done to decrease the probability of repeated accidents?

Sorry -- lots of questions -- but I've wondered abou these things for years.

2007-10-12 03:01:42 · 4 answers · asked by Anonymous