Mathematics - 31 October 2007

2007-10-31 09:23:55 · 3 answers · asked by Sumanta M 1

What is sum of internal angles
angle(A) + angle(B) + angle(C)?

2007-10-31 09:18:35 · 4 answers · asked by Alexander 6

Can you count this tricky question check this dice
http://www.flickr.com/photos/nhaqqi/1801079234
i have already checked this answers and all it was wrong

0-1-4-5-6-7-11-12-14-17-20-24-28
31-32-33-35-36-39-40-42-49-52-54-
56-60-67-68-77-80-84-86-91-94-100
118-122-152-156-241-245-304-358-651
679-1285-2725-13606-

2007-10-31 09:16:04 · 2 answers · asked by Bebo 3

2007-10-31 09:13:56 · 11 answers · asked by jacquesolate02 1

I know all the formulas for these type of proofs. I just have trouble getting one side to equal the other, and these two are giving me trouble.


1.) sin 3x (over) sin x - cos 3x (over) cos x = 2

2.) (1-sin^2x)(1-tan^2x) = cos2x

Get left to equal right on both ones.

Thanks for the help!

2007-10-31 09:07:49 · 3 answers · asked by neverisenough 1

determine if x+.5 is a factor of

P(x)=8x^4 - 36x^3 - 38^2 + 81x +45

Use a chart to show your work and then state whether or not x+,5 is a factor

2007-10-31 09:06:09 · 3 answers · asked by K Rose 3

2007-10-31 09:03:49 · 11 answers · asked by Anonymous

please help me to solve this

2007-10-31 08:52:00 · 2 answers · asked by Anonymous

selling frozen yogurt at a fair, you make $565 and use 250 cones a single scoop cost $2 and a double scoop cone cost $2.50 how many of each type of cone did u sell
i need the answer and how you got the answer

2007-10-31 08:45:48 · 4 answers · asked by Anonymous

A wire 80 cm long is cut into 3 pieces of lengths y, x and 55 − x − y and each piece is bent into squares. Find the absolute maximum and absolute minimum of the areas of these squares.

2007-10-31 08:43:45 · 2 answers · asked by cheri1286 2

This may be hard to understand without the pic, but here goes.

The figure shows an open box with a square base and a partition down the middle. The box is to have a volume of 400 cubic inches. Express the amount of material needed to construct the box ,A, as a function of the length of a side of its square base, x.

The box looks like a shoe box with a partition down the center. The length and width are x, and the height is y.

Help, thanks.

2007-10-31 08:37:07 · 2 answers · asked by Happy Killa Pants 2

given then y=1/(2x^2 - 2x +1)^(3/2)

how do you integrate y?

thanks for the help, urgently needed.

2007-10-31 08:33:59 · 2 answers · asked by Anonymous

2007-10-31 08:23:07 · 8 answers · asked by fingerbang138 1

Simplify: Sqrt20/5 -1/sqrt 5 = (√5 x√20-5)/(5x√5)=1/√5

Simplify: Sqrt1/6 = √(1=) 1= 1/6

Simplify: 9Sqrt6 - 9 Sqrt2= 9√6-9√2=9√2 (√3-1)

Simplify: 3 Sqrt486= 3√486= 3√81 x√6=27√6
if this is correct is this what they are looking for? Thank you all for your input.

2007-10-31 08:13:38 · 5 answers · asked by chas_lynn2002 2

a math teacher YEA, but how about a journalist or business / global marketing major?????

do we need to know extensive math equations that are at times mind boggling..?

sombody give me an example when you would really need the knowledge of >>>>>>> how about Problems on integrating certain rational functions, resulting in logarithmic or inverse tangent functions .......come on somebody prove me wrong

2007-10-31 08:08:05 · 20 answers · asked by Livefor2day 3

2007-10-31 08:05:00 · 4 answers · asked by Joseph P 1

without a calculator how do you do these.... answers included please because i've kind of done it and need to check if it matches up with yours but i think i've done them wrong!!!

1) 81^-3/4

2) 25^3/2

3) (10^-6)^1/3

2007-10-31 08:00:41 · 4 answers · asked by Anonymous

Heyy
I just wated to know

Is it possoble to go to collage and sixth form at the same time in the uk ??
Caue i heard that you couldnt
But i thought you could
lmao

Thnks :]

2007-10-31 07:44:27 · 3 answers · asked by <3 1

The length of one side of the base is 6in and the height of the pyramid is 11in.

2007-10-31 07:42:13 · 3 answers · asked by bristo75 1

Ok I have these problems:

sec(7r/6)

and cot(5r/4)

and csc(7r/2)

to find these on a calculator do i just do..

sec= 1/cos(7r/6)
cot=1/tan(5r/4)
csc= 1/sin(7r/2)

2007-10-31 07:39:37 · 4 answers · asked by Anonymous

A circle of unknown radius has a chord of length d whose midpoint is 1 foot from the circle. Find the radius, r, of the circle [in inches].
Please solve and give me compleate answer. I beliave there must be more than one answer please list all. THANKS!

2007-10-31 07:31:51 · 4 answers · asked by Anonymous

2007-10-31 07:27:39 · 2 answers · asked by tina d 1

2007-10-31 07:24:35 · 7 answers · asked by joy o 1

find the following percentiles for standard normal random variable z:

a- 65th percentile
b- 20th percentile
c- 90th percentile
d- 50th percentile
e- 99th percentile

2007-10-31 07:07:44 · 3 answers · asked by bob b 1

2007-10-31 07:05:45 · 1 answers · asked by Razi 1

(x^2/36)-(y^2/9)=1 at the point (-8,1/6sqrt(252)). The equation of this tangent line can be written in the form y=mx+b where
m=________
b=________

2007-10-31 07:01:20 · 3 answers · asked by Anonymous

y=2x
x+3y=-14

2007-10-31 06:59:57 · 7 answers · asked by butterflt 1

can you answer any of these??
1) 4x + 3 =2x + 11
2) 5x + 7 + 3x +11
3) 2x - 4 = 5x -19
4) 6x - 2 = 3x + 10
5) 7x + 4 +10x - 20
6) 9x + 7 = 15 + 1
7) 8x + 3 = 2x + 21
8) 3x - 6 = 10 - x
9) 2x -3 = 3 - 4x
10) 3x + 4 =18 - 4x
11) 10 - 4x =3x + 3
12) 9x - 3 = 19 - 2x

2007-10-31 06:58:29 · 21 answers · asked by Rushton 3

2007-10-31 06:57:28 · 16 answers · asked by Chris B 1

i have no clue how to do it..
ex. 2.04 = ?

2007-10-31 06:56:11 · 5 answers · asked by soulsearcher1105 1