Mathematics - 24 September 2007

2007-09-24 10:40:27 · 10 answers · asked by kayn k 2

he is brilliant at maths aged 7,, have many of you intelligent mathematic people got this from an early age? he loves maths and I have no clue of the sums, way to hard for me!

2007-09-24 10:39:05 · 6 answers · asked by xxxkaibabesxxx 2

Suppose you were given a length of string and an irregularly shaped piece from a jigsaw puzzle.How would you determine the perimeter of the piece of the jigsaw puzzle?(Perimeter is the distance around the outside edge of an object.)

2007-09-24 10:38:13 · 2 answers · asked by Anonymous

The following table lists the probability distribution for cash prizes in a lottery conducted at
Lawson’s Department Store.

Prize ($) Probability
0 .45
10 .30
100 .20
500 .05

If you buy a single ticket, what is the probability that you win:
a. Exactly $100? b. At least $10? c. No more than $100?
d. Compute the mean, variance, and standard deviation of this distribution.

2007-09-24 10:26:38 · 1 answers · asked by bharat j 1

I don't know how to do this can someone help

20-20-20-23-27-27-28-31-39-39
-34 Mean-Median- and mode

3-4-4-6-7-7-9-10-11-11-21 Mean-Median-Mode

2007-09-24 10:24:39 · 8 answers · asked by niquie_is_cool 1

(For a, b in Z, we say a is divisible by b if a/b is in Z. Here b is not zero.)

2007-09-24 10:22:25 · 1 answers · asked by Anonymous

why is an integer also a rational number?

2007-09-24 10:15:44 · 3 answers · asked by mexican_dude456 1

2007-09-24 10:15:13 · 1 answers · asked by Anonymous

I was just wondering what would 1 milliliter be converted into cubic centemeters because I got it wrong on a test. Please tell me how to do this conversion.

2007-09-24 10:12:37 · 4 answers · asked by Anonymous

Is y²-1/9= (y X 1/3) +(y X 1/3)
Also what is 2x²+x-6 I think I am suppose to simply it

2007-09-24 09:56:55 · 1 answers · asked by Ireqiredlotofhelp 1

2007-09-24 09:53:58 · 2 answers · asked by Deutschjoe 3

I am reading a book on Riemann's Hypothesis by Karl Sabbagh. In the Prologue he references to an interview with a mathematician Michael Berry. Karl had asked him what it felt like to be sixty to which Michael's reply was:

"Sixty, sandwiched between two primes, has the property that no smaller number has more distinct prime factors"

I see that sixty's distinct prime factors as 2, 3 & 5. But so does 30, right ? How is it correct to say "no smaller number has more distinct prime factors" ? Or did I get it wrong ?

2007-09-24 09:52:44 · 5 answers · asked by long_live_open_source 2

you know, when there is a coordinate graph and the y axis have a "scrunch" if you will. it goes 1 SCRUNCH 40 45 50 and so on and so on. what is that called? thanks.

2007-09-24 09:51:51 · 1 answers · asked by casey m 2

integral of (sec x)^3 dx

integral of (e^x) cos dx

i got 9e^x cos x + e^x sin x)/2 if anyone could tell me that's rite that'd be great. not sure wut to do for the first one

2007-09-24 09:49:42 · 4 answers · asked by people suck 6

Thanks in advance for the help.

2007-09-24 09:47:52 · 3 answers · asked by Random G 3

2007-09-24 09:45:37 · 8 answers · asked by brianna0795 1

4 / 2x-15 < 0

2007-09-24 09:45:19 · 15 answers · asked by Bad Kitty 1

154-m=84! please explain your answer!

2007-09-24 09:43:18 · 6 answers · asked by bb_trainer 2

Ok So i suck at probability.Help me out here.

A small business has its own internal phone system. Each phone number is four digits long The first digit must be 2 to indicate an internal call, and the second digit cannot be 0. How many internal phone numbers are possible for this company?

2007-09-24 09:34:00 · 8 answers · asked by Scented Marker 2

Ok I need help with questions like this one, I have a test tomorrow, and I really need someone to help me understand it better.


8n -(n - 3)=9

the answer is n=6/7, but I need someone to explain. HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

2007-09-24 09:30:15 · 7 answers · asked by personalchefgurl 2

My piece of Aluminum foil has a mass of .19 g
Is this a conversion problem? I keep setting it up with Avogadro's Number, but it seems wrong to me.

2007-09-24 09:28:43 · 1 answers · asked by Ariana f 1

2007-09-24 09:25:06 · 9 answers · asked by Nathan F 1

element 1 but not 2? Express your answer in terms of k. Give an informal proof supporting your answer.

2007-09-24 09:24:41 · 2 answers · asked by simonkf2002 1

So, I have an equation V=1/3h^(3r-h). The "^" signifies "squared" so it would be h-squared. Please solve for r and explain each step please. Thanks!

2007-09-24 09:24:34 · 4 answers · asked by =(Disullusioned_Dreams=( 1

How do I find the slope of a curve y=x^2-x-2 at x=a?

(btw this is having to do with tangent lines in calc)

2007-09-24 09:20:22 · 9 answers · asked by Samich 3

2007-09-24 09:18:14 · 4 answers · asked by Anonymous

2007-09-24 09:14:43 · 8 answers · asked by Jennifer C 1

2007-09-24 09:08:04 · 3 answers · asked by Sarah 1

Whats the connection between the number of rays and the number of angles?? If there are 3 rays how many angles ETC???

2007-09-24 08:56:08 · 1 answers · asked by Girl 1

i really need help me for my homework in maths please help!
1)divide £1000 in the ratio 4:3:2:1
3)consider a cube of side 2 and a cube of side 3. what is the ratio of their volumes?
4)what is the ratio of ponds to pence in my pocket?
5)divide £750 in the ratio 1:5:1?
8)a stereo worth £460 is reduced by £82.80. what is the reduction as a percentage?
9)what is the percentage increase that takes £590 to £752.25?
10)if i invest £500 in a bank account that pays 4.5% compound interst per annum, then how much will that initial amount be worth in 10 years?

please help if you can even if it is just a few questions, write the number so i no which it is?
thanx!!!!!!

2007-09-24 08:31:32 · 7 answers · asked by one hot bitch!! 1