Mathematics - 1 October 2006

2006-10-01 13:53:07 · 8 answers · asked by twinkie 1

2006-10-01 13:52:29 · 6 answers · asked by twinkie 1

2006-10-01 13:50:00 · 16 answers · asked by twinkie 1

2006-10-01 13:49:02 · 13 answers · asked by twinkie 1

Can anyone tell me how to work out the following:

A shuffled pack of 52 normal playing cards, each card is dealt face up in order, how long (on average) do you have to wait before (say) the Ace of Clubs is dealt?

Of course it is less than or equal to 52 because it has to come up, but how long on average?

Thanks

Also if anyone knows any good books that deal with such question s (and others that I have asked) I would be grateful for a recommendation!

2006-10-01 13:38:25 · 7 answers · asked by Beerbuddy 1

In the textbook it says "By using a calculator/computer we find........ to be ". Is this possible using a TI-30 (we're restricted to this during the test) calculator using a large number of subdivisions?

2006-10-01 13:27:22 · 4 answers · asked by Mark4505 2

4x plus 3(x-2)= -(5x-20)-x

a plus 4= 36- 5a

2006-10-01 13:24:55 · 8 answers · asked by bpg011 2

we would like the function g(x)= square root of ( 16 - x^2 / 4 - x)
-4 < or = x < or = 4

to be continuous over the interval (-4,4). The value that would have to be assigned to g(4) to accomplish this is:
a) 0 b) 2 c) 2 * sqrt 2 d) 4 e) 4 * sqrt 2

and why.


thank you soooooo much

2006-10-01 13:22:07 · 4 answers · asked by leksa27 2

Today you are to deliver to the tax man one grain of rice. Tomorrow 2, The 3rd day 4 grains, the 4th day 8 grains. You are to continue doubling the amount for a total of 30 days, counting today as day 1.
a) how many grains are you to deliever on the 30th day? Show your method and reasoning
b) using measurement and estimation of actual rice, approximate the weight of the rice you are to deliver on the 30th day. Show and explain the details of the method you can choose to use, and how you are calculating the numbers. Make your solution as general as possible.

2006-10-01 13:19:55 · 6 answers · asked by Anonymous

whats the awnser to that question?

2006-10-01 13:19:39 · 11 answers · asked by im a nobody are you a nobody to 1

2006-10-01 13:05:49 · 6 answers · asked by Anonymous

its multiple choice, but i need work or an explanation...

let f be a function defined as follows, where a does not = 0.

f(x)= (x^2 - a^2) / (x-a) for x does not equal a

f(x)=0 for x equals a

which of the following are true about f(x)?

1. limit as x goes to a exists
2. f(a) exists
3. f(x) is continuous at x=a

a. none
b. 1 only
c. 2 only
d. 1 and 2 only
e. 1, 2, and 3

2006-10-01 13:00:07 · 5 answers · asked by leksa27 2

Ok. So there are a hundred lockers in a school. One hundred kids. The first kid comes and opens all the lockers. Then, a second kid closes every other one. Then a third kid changes every third locker. Like if it was open, you would close it, closed, you would open it... Then the fourth kid changes every fourth locker like the third kid only every fourth one. then the fifth kid cames and he changes every fifth one. Get it? Go on until you get to the hundreth kid. There are ten lockers open. Which ten lockers are open? Hint: one of them is the first locker. If you don't understand im me at katiekay@verizon.net. not jerry.

2006-10-01 12:59:41 · 5 answers · asked by Jerry Y 1

[(1) - (25/x^2)] / [(1) - (8/x) + (15/x^2)]

the instructions are to "perform the indicated operations"
the answer is supposed to be:
(x+5)/(x-3)
I can't figure out how to get there.

2006-10-01 12:51:58 · 7 answers · asked by Anonymous

2006-10-01 12:45:42 · 8 answers · asked by Anonymous

If Dalllas had 1120 cases at the start of the epidimic ,with an increase of 27% per week, how many cases would be reported in Dallas after 4 weeks of the epidimic?

2006-10-01 12:36:41 · 18 answers · asked by pink princess 1

2006-10-01 12:19:19 · 8 answers · asked by Anonymous

Consider the data set that is summarized in Minitab Output below:
Stem-and-leaf of Data
N = 30
Leaf Unit = 1.0

4 2 3469
7 3 178
10 4 157
15 5 36679
15 6 124566799
6 7 36
4 8 34
2 9 26


N= 30
N*=0
Mean=57.17
SE Mean=3.62
StDev=19.84
Minimum=23
Q1=40.25
Median=60
Q3=69
Maximum=96

Answer the following:
(a) According to Chebyshev’s rule what is the minimum number of observations that will fall between 17.49 and 96.85 ?

( b) What is actual number of observations that fall in the interval in (a)?

2006-10-01 12:15:09 · 1 answers · asked by Anonymous

x+y=7
x*y=-60

2006-10-01 12:13:24 · 6 answers · asked by beeboroachgoingon197 1

2006-10-01 11:58:45 · 3 answers · asked by t31t 1

2006-10-01 11:57:52 · 6 answers · asked by SYL 1

3x + 4y = - 13
3x= -13 – 4y
x = 13/3 – 4y/3

5y - x = - 21
5y – (- 13/3 – 4y/3) = - 21
5y + 13/3 + 4y/3 = - 21
5y + 4y/3 = - 21 – 13/3
15y+4y/3 = - 63 –13/3
19y/3 = - 76/3
19y = - 76
y = - 76/19 = - 4

x= 13/3 + 4/3 * 76/19 = -1/3( 13 - 4*76/19) = -1/3 (247-304)/19 = 1

The Solution set is ( 1, -4)

How would anyone else do this, besides just plugging in the "known?" gee willikers

2006-10-01 11:49:48 · 2 answers · asked by Anonymous

2006-10-01 11:14:20 · 8 answers · asked by pokeydunsey@verizon.net 1

2+2(17*465.15)^92 - (23*43*109*456*71) +2 - chicken soup = ?

2006-10-01 11:10:41 · 13 answers · asked by Anonymous

2006-10-01 10:58:42 · 7 answers · asked by shambhu 1

just like you need 1 to get to a 2 2to get to a 3 4 to get to a 5 10 to get to a 11 and on and on like that

2006-10-01 10:58:14 · 5 answers · asked by Anonymous

2006-10-01 10:50:37 · 10 answers · asked by pokeydunsey@verizon.net 1

I am trying to figure out how to factor this problem.

2006-10-01 10:40:47 · 4 answers · asked by prettygirl7641 1

A line segment of length 2a has one endpoint constrained to lie on the x-axis and the other endpoint constrained to lie on the y-axis, but its endpoints are free to move along those axes. As they do so, its midpoint sweeps out a locus in the xy-plane. Obtain a rectangular coordinates equation to this locus and thereby identify this curve.


any help or ideas how to start would be appreciated. Thanx in advance.

2006-10-01 10:24:03 · 4 answers · asked by Joe 2

2006-10-01 10:23:00 · 6 answers · asked by TITANANA 1