Mathematics - 21 August 2007

2007-08-21 12:14:09 · 7 answers · asked by mikeyyyyyyyyyyyyyyyyyyyyyyyyyyyy 1

y=3x-10
y=2x-5

2007-08-21 12:10:02 · 7 answers · asked by ty c 1

Hey guys, I have been having trouble with the following types of problems and was wondering if I could get a couple solutions.

1. Let |p|<1

SUM of (i*p^i)
(1
2. 1. Let |p|<1

SUM of ((i^2 )*(p^i))
(1

2007-08-21 12:08:58 · 2 answers · asked by Anonymous

i need help with my geometry homework.... can u guys atleast answer one of these questions.
DIRECTIONS: SHOW CONJECTURE IS FALSE BY FINDING A COUNTEREXAMPLE.

1.) THE DIFFERENCE OF TWO WHOLE NUMBERS IS A WHIOLE NUMBER.

2.) THE ABSOLUTE VALUE OF THE SUM OF TWO NUMBERS IS THE SUM OF THEIR ABSOLUTE VALUES, MEANING...Ia+bI = IaI + lbl.

3.) IF m doesnt equal -1, then m/m-1 > 1.

2007-08-21 11:54:20 · 11 answers · asked by Nida F 1

Please work out, so I can understand it. Thanks

2007-08-21 11:52:21 · 2 answers · asked by Tim M 1

2007-08-21 11:45:16 · 4 answers · asked by jen b 1

2007-08-21 11:44:53 · 2 answers · asked by jen b 1

Let x_n be a sequence of real numbers and w_n a sequence of positive weights. Let s_n = (Sum(i= 1,n ) w_n x_n)/(Sum (i=1, n) w_n) be the sequence of the weighted means of x_n with respect to w_n. Show that, if Sum (w_n) diverges, then in the extended real system, the following inequalities hold:

lim inf x_n <= lim inf s_n <= lim sup s_n <= lim sup x_n

(of course, the middle inequality is always true, and it suffices to show either the left or the right inequality).

Show these inequalities don't need to be true if Sum (w_n) converges.

Thank you for any help

2007-08-21 11:42:09 · 1 answers · asked by Anonymous

Johnny was ill and had to take a test a day late.
His 96 raised the class average from 71 to 72.

How many students INCLUDING Johnny took the test?

Show all work and explain!

Please help i cant figure it out....

2007-08-21 11:37:07 · 10 answers · asked by Anonymous

It must fit in a single answer.
Any mathematical operators other than + * ^ ! (for addition, multiplication, exponentiation and factorial respectively) must be clearly defined within your answer.
All words used must be in the American Heritage online dictionary (at www.bartleby.com/61/) or defined in your answer.
The number must be exact and unambiguous.
You cannot refer to physical quantities (such as the number of atoms in the universe, or the speed of light).
It must be finite.
Reference to other people's answers is allowed, as long as it still meets all the other conditions. (eg "all the other answers added together" would win if all the other answers were simple values, but if 2 people wrote that, they would both lose as it becomes a self-referential paradox and therefore ambiguous!)

Good luck, The biggest number wins!

2007-08-21 11:09:09 · 50 answers · asked by ____ 2

Real Numbers???

1.) Can someone help me Evaluate the following expression?
[-27+14]

2.) Also, is this TRUE of FALSE?
[-8] + [3] = [-8+3]

2007-08-21 11:06:53 · 2 answers · asked by Anonymous

ok so ive been doing this problem forever, can i get some help, i need to SIMPLIFY

x^2-2x-35/2x^3-3x^2 X 4x^3-9x/7x-49

2007-08-21 11:03:08 · 4 answers · asked by johnalds_1990 2

2007-08-21 10:51:42 · 11 answers · asked by Anonymous

5(n)=1
What property is this?

2007-08-21 10:49:29 · 3 answers · asked by animal_luver313 1

I've done the actual problem on my own, but I'm not sure how to put the answer. It needs to be in "general form"
The answer is 2y=3x+11.
In general form, would it be -3x+2y=11? or do I have it completely wrong and general form is something different? thanks.

2007-08-21 10:32:55 · 4 answers · asked by je t'♥ 5

How do i write these in expanded form using the powers of ten .

1.) 2,700
2.) 42.063
3.) 5,782,000
4.) 5627
5.) 6,023.0047

2007-08-21 10:29:43 · 3 answers · asked by Anonymous

whats the probability that 4 maths student,drawn at random will be male?

2007-08-21 10:24:43 · 6 answers · asked by Anonymous

Hey ok here we go!U get 10 points if ur the first to get it right.

Dierections:Write in expanded form to the power of ten for ONLY SOME OF THEM!For the rest just write the answer to them and explain how u got the answer!

1)500 in expanded form to the power of ten.
2)54% of 100
3)33% of 100
4)345 in expanded form to the power of ten.
5)2666 in expanded form to the power of ten.
6)504 in exanded form to the power of ten.

WELL GOOD LUCK TO ALL REMEMBER 10 POINTS TO THE FIRST 2 GET IT RIGHT!!!

2007-08-21 10:22:29 · 2 answers · asked by Anonymous

please tell me why the letter "m" is used to represent slope

2007-08-21 10:22:14 · 1 answers · asked by milan 1

Title.

2007-08-21 10:11:37 · 6 answers · asked by GoldRenamon 2

Do you know what
35 over 100 reduces to?

and also

783 over 1000????????

and 3 over 100????


fractions

2007-08-21 10:02:58 · 10 answers · asked by Anonymous

This is for school.So plz be serious.SCIENCE!!!!!!
How do you get a M&M from a yard long spoon.
2 ft. stick
1 foot spoon
stuck together with duct tape.please help me i did this now HURRY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

2007-08-21 09:58:17 · 10 answers · asked by Anonymous

Please Help me, I'm very confused, and these don't seem to be coming out right. My textbook and notes aren't helping.

1- [@ = theta] Solve for ALL numeric values of @:

tan @+8/5 + tan@-1/tan @ = 1

2- Prove the identities:

(a.) tan x + cot x/ (cos x) (sin x) = (sec^2 x)(csc^2 x)

(b.) sin 2x= 2 tan x/1+ tan^2 x

3- The angle of elevation from the ground to the top of a toper is 40 degrees. A person then walks 300 meters closer to the tower and the angle of elevation is now 60 degrees. (a) What is the height of the tower (in meters)?
(b) What is the distance from point A to point B the distance the person walks (in meters)?


*Please help explain these to me step by step, I have to understand these concepts for an upcoming exam. I would really appreciate the help. Thanks!

2007-08-21 09:49:18 · 2 answers · asked by Anonymous

I really just can't remember how to do this, it's terrible. The answer and how you did it please!

2007-08-21 09:31:35 · 15 answers · asked by MAC Addict 2

approximately 30% of all homes in a locality have washing machines. what is the probability that in a sample of 80 homes from that localty fewer than 20 would have washing machines?......kindly and 1 can give the solution of this problem

2007-08-21 09:18:38 · 6 answers · asked by sandy 1

Convert the following equations into logarithmic form:
a. 9 = 4x
b. 3 = 6y
c. 5 = 7y
d. X = 9y

2007-08-21 09:11:39 · 4 answers · asked by austin 1

What does this number mean to you?

2007-08-21 09:08:18 · 3 answers · asked by Zone 7 Seventy 7 1

2007-08-21 08:51:05 · 18 answers · asked by Crazychick 2

A.) 8/1 x 3/4

B.) 8/1 x 4/3

C.) 1/8 x 4/3

D.) 1/8 x 3/4

2007-08-21 08:48:38 · 30 answers · asked by angel 1

2007-08-21 08:40:47 · 10 answers · asked by Mia O 1