Mathematics - 24 November 2007

(the question continue)from the same population with standard deviation 2.5 inch?

plss answer in detail

2007-11-24 23:48:24 · 1 answers · asked by Anonymous

2007-11-24 23:01:18 · 14 answers · asked by Anonymous

The 2 at the end is meant to be one of those little 2's at the top but I cant do that on this keyboard.
Anyway, can someone please tell me what the answer is and how to work it out!
I think I've got it but I wanna make sure! HELP! I'm not good at maths!

2007-11-24 22:45:36 · 12 answers · asked by Anonymous

2007-11-24 21:30:46 · 5 answers · asked by Anonymous

f(x) = 6/ax+b
f(1) = -6
f(0)=-2
find the value of x such that the function f(x) is not defined

2007-11-24 21:28:51 · 7 answers · asked by quinie leong 3

what is 20% of £60

2007-11-24 20:46:58 · 26 answers · asked by Anonymous

area figure that is square with three steps one full side is 2.5 and the sides 1st 1.9, 2nd 0.75, 3rd 0.9, top bottom step is 1.4

2007-11-24 19:39:10 · 1 answers · asked by roses edge 1

Find three decimal numbers bewtween 0.47 and 0.48

2007-11-24 19:37:35 · 5 answers · asked by Dumb Giirl 1

Our teacher challenged us to come up with a function that is definded on R and is unbounded in every neighborhood of x = a for every "a" of R.
Can you help me with this one?

2007-11-24 18:30:07 · 2 answers · asked by earsanddrums 1

I have been trying to call him on my cell phone for over a month.

2007-11-24 18:29:37 · 11 answers · asked by Anonymous

The formula models inflation where C = the value today, r = the annual inflation rate, and S = the inflated value t years from now. If the inflation rate is 3%, how much will a house worth $300,000 be worth in 15 years?

2007-11-24 18:29:01 · 3 answers · asked by damasta_007 1

log(5x+1) = log(2x+3) + log 2

2007-11-24 18:27:41 · 7 answers · asked by damasta_007 1

please help and show me how you get the answer :]

2 - 8(-7 + x)+ 5x

thank you <333

2007-11-24 18:20:32 · 6 answers · asked by BoOoO 3

simplify each expression:
1) √180
2) 3√18

combine the radicals:
1) √18 + √8 - √32
2) 3√20 - 2√45

multiply or divide then simply:
1) 8√2 x 2√2
2) (3√5)^2
3) (16√21) / (2√7)
4) (5√162) / 9√50

the expression √108 - √3 is equilvalent to:
1) √105
2) 35√3
3) 5√3
4)6

the sum of 9√2 and √32 is:
1) 9√34
2) 13√2
3) 10√34
4) 15

2007-11-24 18:14:48 · 5 answers · asked by Anonymous

mathematics is the soul of objectivism but it can drive you to a morall existence. it is a kind of meditaion as well .how do you belive in pure maths?

2007-11-24 18:08:19 · 9 answers · asked by Anonymous

how do I solve for h?

2007-11-24 18:06:02 · 7 answers · asked by Trisha 2

2007-11-24 17:39:09 · 6 answers · asked by Trisha 2

Work Problems
1. 2 buses left a gasoline station at the same time and traveled in opposite directions with 1 bus traveling at 80kph and the other as 108kph.After how many hours will the 2 buses be 329 kilometers apart?
2. Raymond can load the truck in 40 minutes.If his son Alvin helps him,t takes them 15 minutes.How long will it take Alvin to finish alone?
3. 2 trains leave the same trminal at the same time and travel in opposite directions,with the 1st train traveling at a speed of 20km per hour faster than the other.After 5 hours,they are 700km apart.Find the speed each...
****Please give the Checking and the Solution

2007-11-24 17:35:04 · 9 answers · asked by AlyannA アリャンナ 2

Current proofs of Pythagoras' theorem all do so through the comparison of areas of the triangles one way or another. I know of none that is able to prove the theorem using lines alone. As one of the few foundations of mathematics, the theorem holds a very important law, yet one which is too abstract for me to perceive. While the current proofs of the theorem do manage to prove it, they do not actually show why it is so, and do not explain the unique properties of lines, points and angles which give birth to this theorem. So I am wondering if there are any proofs which do not adopt the comparison of area. Otherwise, could anyone tell me why it is impossible to prove the theorem while not using area. What property of area calculation links it to the theorem and makes it the crucial key to proving it?

2007-11-24 17:32:55 · 4 answers · asked by CVA 2

2007-11-24 17:29:40 · 10 answers · asked by nabs l 1

where 0<\x<\2pi

2007-11-24 17:22:07 · 4 answers · asked by Anonymous

1) x-3 / 10 = 4/5

2) 3/x +4 = 3/x

and expressing these in lowest terms:

x^2 - 5x / x^2 multiplied by x/ 2x-10

x^2 - 25 / 12 divide x^2 - 10x +25 / 4

2007-11-24 17:20:13 · 5 answers · asked by Anonymous

Even without invoking superstition or religion, the number 666 has many very curious properties - can it all be coincidence...?

http://en.wikipedia.org/wiki/666_(number)
* 666 is the sum of the first 36 natural numbers, and thus a triangular number. Since 36 is both square and triangular, it's also a doubly triangular number.

* 666 is the sum of the squares of the first seven primes:
666 = 2² +3² +5² +7² +11² +13² +17²

http://mathworld.wolfram.com/BeastNumber.html

* Golden ratio φ = -2 sin (666°) = - 2 cos(6*6*6°)
[Very fishy!?!]

* It's a sum and difference of the first three 6th powers
666 = 1^6 - 2^6 + 3^6

* There are (exactly) six 6s in 666^6

* Sum of all the numbers on a roulette wheel
* Sum of the first 144 digits of Pi
* Sum of Roman numerals from I to D is 666 (DCLXVI).

Other:
* The sum of the ASCII character codes for INDONESIA gives 666.
* "666" is the combination of the mysterious suitcase retrieved by Vincent Vega and Jules in Pulp Fiction.

2007-11-24 17:13:03 · 11 answers · asked by smci 7

Also help me how to solve that 3+2i and 3- 2i are in fact solutions.

2007-11-24 17:04:58 · 7 answers · asked by stephiewon 2

A tennis club offers 2 payment options:

option 1:
$35 monthly fee plus $4/hr for court rental.
option 2 : no monthly fee but $6.50/hr for court rental. let x = hrs per month of court rental time.

A) write a mathmatical model representing the total monthly cost, C, in terms of x for the following?

option 1:_________
option 2:_________

B) how many hours would you have to rent the court so that monthly cost of option 1, is less than option 2. set up an inequality & show your work algebraically using the info in part A.

2007-11-24 17:03:44 · 6 answers · asked by Anonymous

explain

2007-11-24 16:22:56 · 6 answers · asked by Anonymous

explain!

2007-11-24 16:16:37 · 3 answers · asked by Anonymous

What happens when you apply the power rule for integration to the function 1/x?

2007-11-24 15:49:36 · 2 answers · asked by gigichic21 1

7(cos3pie/2 +i sin 3pie/2)

2007-11-24 15:48:17 · 2 answers · asked by danahen2000 1

A Gaussian integer is a complex number of the form a+bi where, a,b are integers and i = squareroot -1. Show set of Gaussian integers is denumberable


Any help would be great...thanks

2007-11-24 15:36:26 · 3 answers · asked by nowimpsbball 1