Mathematics - 27 September 2006

2006-09-27 23:49:55 · 11 answers · asked by blesson t 1

2006-09-27 23:36:49 · 3 answers · asked by dyan g 1

2006-09-27 23:27:23 · 10 answers · asked by sil d 1

i need to calculate the effective area and diameters of compound elipses

2006-09-27 23:24:11 · 5 answers · asked by daniel g 7

How will u define our 0 to the aliens mathematically?

2006-09-27 23:03:19 · 7 answers · asked by rajesh bhowmick 2

I think aliens interests would be in our mathematical or to be more precise in our number system because "god created numbers".What do u think?

2006-09-27 22:54:23 · 10 answers · asked by rajesh bhowmick 2

How would the aliens come to know that how smart are the other planets creatures are which they are visiting?

2006-09-27 22:45:27 · 5 answers · asked by rajesh bhowmick 2

What would be the first thing that aliens would be interested in when they visit any planet having intelligent living creatures in that planet?

2006-09-27 22:20:28 · 8 answers · asked by rajesh bhowmick 2

2006-09-27 22:19:12 · 5 answers · asked by iceland 1

what do we mean when we say that two sides or angles of triangle are concurrent?
if (c+a)(c-a) = (b+a)(b-a) = (b+c)(b-c)
then do we mean that these are concurrent?

2006-09-27 22:04:25 · 8 answers · asked by Ayaz Ali 4

calculate the probability both 1 and 8 will be drawn

2006-09-27 21:35:35 · 12 answers · asked by Anonymous

2006-09-27 21:14:02 · 30 answers · asked by Anonymous

1920235.1294356 divided by 1146735 then square the answer then take away 23415 then multiply by 28457043.98845 and finally divide by 27485936.12869,,,,,,,,its kooite eezee..,,,,,,,,,,

2006-09-27 20:59:43 · 6 answers · asked by Anonymous

FORMULA 1: need to calculate the noonday sun angle for given latitude (X) and given date (Y)

FORMULA 2: How to calculate the sun angle in comparison to the equinox and solstice

2006-09-27 20:38:15 · 2 answers · asked by littlegirlsexxy 1

2006-09-27 20:34:28 · 4 answers · asked by Sanjeev s 1

Hi! I dont understand how you can tell if they want you to find dt/dA or dA/dt in this question...
1. A circular puddle is expanding. Its radius is increasing at the rate of 0.5 cm/s. The rate at which the area of the puddle is increasing when the radius is 10cm is...

2006-09-27 20:29:03 · 5 answers · asked by Anonymous

would just over one peck be acurate ?

2006-09-27 19:58:05 · 4 answers · asked by Anonymous

Solve by any method: 0.1x + 0.06y = 9 and 0.09x + 0.5y = 52.7 Check your solution.

My answer:
0.1x=9-0.06y
x= 9-0.06y/ 0.1 = 90 – 0.6y

0.09(90 – 0,6y) _ 0.5y = 52.7
8.1 – 0.054y + 0.5y = 52.7
0.456y = 52.7 – 8.1
y= 52.7 – 8.1/ 0.456 = 97.807

x= 90 – 0.6 * 97.807 = 31.3158
(31.3158, 97.807)

Check:
0.1* 31.3158 + 0.06 * 97.807 = 9
0.09 * 31.3158 + 0.5 * 97.807 = 52.7

Teacher: Sorry, . I cannot tell what you are doing. 0 points
ok.. was the question asked wrong?

2006-09-27 19:41:46 · 10 answers · asked by SCHNITZEL 1

how do i plot a function like the one below in matlab. Should i convert it to a cartesian or can i plot it straight forward.

(rho) = 1 + 0.4 * sin(phi) * sin(theta)

0 <= theta <= 2*pi,
0 <= phi <= pi

2006-09-27 19:25:10 · 2 answers · asked by joker 2

the following question is with reference to the topic"permutations & combinations" from the subject -mathematics

2006-09-27 19:10:50 · 5 answers · asked by Anonymous

Solve by the addition method: 3x - 4y = 11 and -3x + 2y = -7 Check your solution.

3x=-4y+11
3x/3=(-4y+11)/3
x=(-4y+11)/3 Teacher: Sorry, I have no idea what you are doing here. There are two equations and this is a system. Therefore, they must be solved together.

Check: 3x - 4y = 11
3((-4y+11)/3)+4y=11
-4y+11+4y=11
-4y+4y+11=11
11=11

-3x + 2y = -7
(-3x)/(-3)=(-2y-7)/(-3)
3x/3=(2y+7)/3
x=(2y+7)/3

Check:-3x + 2y = -7
-3*((2y+7)/3)+2y=-7
-3*(2y+7)/3+2y=-7
-(2y+7)+2y=-7
-2y-7+2y=-7
-2y+2y=0
0=0
Teacher: Sorry wrong

2006-09-27 19:10:16 · 10 answers · asked by SCHNITZEL 1

2006-09-27 19:02:18 · 32 answers · asked by chefcrackers 1

Question is - Enter: 42 Change to: 92 How? ____ What is the answer? Any suggestions would be appreciated!

2006-09-27 18:40:05 · 6 answers · asked by DrBee 1

Here's my question:

x^5y^3z^2 / x^2y^3z^7

In my textbook, it shows how to reduce this expression like this:

x^5-^2 y^3-^3 z^2-^2 / x^2-^2 y^3-^3 z^7-^2

Why is this?? And then it shows that this expression reduces to:

x^3y^0z^0 / x^0y^0z^5 = x^3/z^5

How does it end up being x^3/z^5?
Do the numbers with the exponent of 0 (x^0) end up being omitted or something?

2006-09-27 18:33:13 · 6 answers · asked by J.Welkin 1

2006-09-27 18:31:50 · 12 answers · asked by liljov2 2

Prove that a^n+b^n=c^n is infinity if a, b,c is integer and n>2

2006-09-27 18:13:18 · 7 answers · asked by Manh B 1

2006-09-27 18:13:07 · 3 answers · asked by Anonymous

A person walks the path shown below. The total trip consists of four straight-line paths.
Path 1 is 90.0 m due east.
Path 2 is 160.0 m due south.
Path 3 is 120.0 m 30.0° south of west.
Path 4 is 200.0 m 60.0° north of west.
At the end of the walk, what is the person's resultant displacement?
___ m at ___° south of west.

2006-09-27 18:11:58 · 4 answers · asked by tingerpoo 2

Investing her bonus. Melanie invested her $33,000 bonus and received a total of $970 in interest after one year. If part of the money returned 4% and the remainder 2.25%, then how much did she invest at each rate?
Teacher:
Minus 1 for no problem setup.

My answer:
I= $970.00 Interest
P= $33,000.00 Bonus
Equation: I = x(.04) + (P-x)(.0225)
The amount invested at 4%, while P-x is the money she invested at 2.25%.
$970 = x(.04) + 742.5 - .0225x
970 = .04x + 742.5 - .0225x
227.5 = .0175x
x=$13,000.00
Melanie invested $13000 at 4%, and
$33000-$13000=$20000 at 2.25%

Teacher:
Minus 1 for no solution checks.
Don't get how to put that into a solution check
Solution check?

2006-09-27 18:02:37 · 1 answers · asked by SCHNITZEL 1

Assume that the n points are spaced so that no 3 line segments have a common intersection point inside the circle.
To start, if the answer is denoted R(n), note that R(2)=2, R(3)=4, R(4)=8

2006-09-27 17:58:05 · 2 answers · asked by Scott R 6