Mathematics - 21 December 2007

to work out standard index form (gcse maths)

2007-12-21 04:20:23 · 3 answers · asked by Anonymous

2007-12-21 04:10:06 · 8 answers · asked by pinkparadiseforever 2

2007-12-21 04:01:41 · 8 answers · asked by malkana d 2

Can someone please help me with these triangle problems??


1. Triangle A B C is drawn with angle bisector B H from vertex point B to point H on side A C. Angle C B H is labeled 3x + 15. Given: Segment BH is the angle bisector of angle ABC. The measure of angle ABC = 105. Find the value of x.

2. Right triangle A B C is drawn with right angle B. The altitude of the triangle is drawn and labeled B D. It goes from vertex B to side A C. If AB=10 and AC=20, find AD.

2007-12-21 03:31:57 · 3 answers · asked by Anonymous

6 -√7 / 6 + √7

2007-12-21 03:29:04 · 3 answers · asked by mommawe'regoingtohell 1

2007-12-21 03:19:48 · 5 answers · asked by Alexander 6

2007-12-21 03:11:11 · 6 answers · asked by mzkent9 1

I saw a quiz where you had to derive the total number of gifts received when the "12 Days of Christmas" is sung in it's entirety. I read an explanation but don't understand it!
The correct answer is 364 and on the 12th day a total of 78 items are received. Can someone please explain this in the simplest possible terms please? Remember we are counting items and not gifts therefore 5 gold rings is 5 items. Please don't post the Wikipedia thing....I don't understand that either!

2007-12-21 02:49:42 · 6 answers · asked by thequestioner 2

I need help on this one math question please

A right triangle is drawn with one of the non-right angles labeled with a measure of B degrees. The side opposite of the angle labeled b degrees is 12 units. The side adjacent to that same angle is labeled 15units. Find the value of b to the nearest hundredth. Show all work.

2007-12-21 02:41:38 · 5 answers · asked by Anonymous

Let f(x)=ax^5+bx^4+cx^3+dx^2+ex+1 be a polynomial. Also assume the f(1)=4 and f(2)=11. Additionally, all the coefficients are integers. Prove that the equation does not have a solution that is an integer. here is the full question yahoo cut some of it off. I need all the work with it to

2007-12-21 02:38:46 · 1 answers · asked by Anonymous

i need help

2007-12-21 02:31:24 · 3 answers · asked by Anonymous

I have an 81% in the class and I just got a 55% on my final exam. The final exam is worth 20% of my grade. Does anyone know what my final grade will be with the information? Thanks

2007-12-21 02:29:28 · 10 answers · asked by Dana M. 3

2007-12-21 02:07:21 · 5 answers · asked by Anonymous

2007-12-21 02:02:11 · 13 answers · asked by Anonymous

if you do 10 times 8 times -x^2 is it +80x^2 or -80x^2 and why.

if you do 5 times 2 times -x^4 is 10x^4 or -10x^4 and why


THANKYOU

2007-12-21 01:38:34 · 4 answers · asked by Anonymous

i mean, like 1x1x36=36 and like 1x2x18=36.

does anybody know????

2007-12-21 01:34:12 · 0 answers · asked by mattiadomain 1

Please explain to me how to answer these questions. Somehow I don't remember learning how to solve or find the value of x -maybe I wasn't in school when it was being taught or maybe it did't have to be taught because it looks so easy but I don't know how to answer it right. Please help me, thanks so so much.. :-)

1. If x(x – 3) = 0, then
A. x = 0 only
B. x = 3 only
C. x = 0 or x = –3
D. x = 0 or x = 3

2. If x(x – 1) = 2, then
A. x = 1 or x = 2
B. x =–1 or x = –2
C. x = –1 or x = 2
D. x = 1 or x = –2

3. If (x – 2)(x – 3) = 0, then
A. x = 2 or x = 3
B. x = 2 or x = –3
C. x = –2 or x = 3
D. x = –2 or x = –3

Thanks again..

2007-12-21 01:31:13 · 7 answers · asked by Techno 1

You know your telephone number (7 digits)

Take the first 3 digits
Multiply that by 80
Add 1
Multiply by 250
Add last 4 digits of phone number
Again add the last 4 digits of phone number
Minus 250
Divide them by 2

Surprised by the answer you get. What is that?

2007-12-21 01:07:05 · 16 answers · asked by chidambaram k 6

using trigo identities and reduction formula for (sin x)^3

2007-12-21 00:07:15 · 4 answers · asked by Anonymous