Mathematics - 23 August 2007

I found out before my grandfather passed away, he had around a three hour conversation about Principia Mathematica...I'm now curious to look into it. I've already looked it up on search engines, so I was wondering if any of you have an explaination on what it is and what it contains...thanks :)

2007-08-23 04:27:57 · 3 answers · asked by Anonymous

f(x)= 6^x log_2 (x)

f'(x)=?

2007-08-23 04:15:44 · 3 answers · asked by Mackenzie W 1

if two class interval are given :
15.5 - 18.5 and 19.5 - 22.5

18.6 belongs to which class interval?

2007-08-23 03:55:41 · 8 answers · asked by conan edogawa 1

2007-08-23 03:53:42 · 9 answers · asked by CelticMoonGoddess 2

2007-08-23 03:48:38 · 8 answers · asked by sh 1

1 x 8 + 1 = 9
12 x 8 + 2 = 98
123 x 8 + 3 = 987
1234 x 8 + 4 = 9876
12345 x 8 + 5 = 98765
123456 x 8 + 6 = 987654
1234567 x 8 + 7 = 9876543
12345678 x 8 + 8 = 98765432
123456789 x 8 + 9 = 987654321

1 x 9 + 2 = 11
12 x 9 + 3 = 111
123 x 9 + 4 = 1111
1234 x 9 + 5 = 11111
12345 x 9 + 6 = 111111
123456 x 9 + 7 = 1111111
1234567 x 9 + 8 = 11111111
12345678 x 9 + 9 = 111111111
123456789 x 9 +10= 1111111111

9 x 9 + 7 = 88
98 x 9 + 6 = 888
987 x 9 + 5 = 8888
9876 x 9 + 4 = 88888
98765 x 9 + 3 = 888888
987654 x 9 + 2 = 8888888
9876543 x 9 + 1 = 88888888
98765432 x 9 + 0 = 888888888

Brilliant, isn't it? And look at this symmetry:

1 x 1 = 1
11 x 11 = 121
111 x 111 = 12321
1111 x 1111 = 1234321
11111 x 11111 = 123454321
111111 x 111111 = 12345654321
1111111 x 1111111 = 1234567654321
11111111 x 11111111 = 123456787654321
111111111 x 111111111=12345678987654321

Now, take a look at this...

101%

From a strictly mathematical viewpoint:

2007-08-23 03:44:03 · 8 answers · asked by Dana 3

1. The probability that a doctor correctly diagnosis a particular illness is 0.7. Given that the doctor makes an incorrect diagnosis the probability that the patient enters a law suit is 0.9.What is the probability that the doctor makes an incorrect diagnosis and the patient asues?

2. The probability that a married man watches a certain television show is 0.4 and the probability that a married woman watches the show is 0.5. The probability that a man watches the show,given that his wife does is 0.7.Find the probability that
a. a married couple watches the show
b. a wife watches the show given that her husband does
c. at least one person of amarried couple will watch the show

thanks for the help.....i'm really getting a hard tym with this course.....

2007-08-23 03:41:15 · 8 answers · asked by ice_cream_chico 1

The altitude of a triangle is increasing at a rate of 2.5cm/min while the area of the triangle is increasing at a rate of 5.00 square centimeters/minute. At what rate is the base of the triangle changing when the altitude is 8.00 centimeters and the area is 93 square cm?

2007-08-23 03:12:18 · 4 answers · asked by Anonymous

what is f'(x)??

(I don't know how to denote a subscript)

2007-08-23 03:03:05 · 3 answers · asked by Anonymous

(a) 1= -9x + 11x^2

(b) Base on the answer from part a how many real solution will this equation have??

(c) Solve the following equation using the quadratic formula: 11x^2-9x-1=0

2007-08-23 03:01:58 · 6 answers · asked by Anonymous

If a ball is thrown vertically upward from the roof of a 64 ft building with a velocity of 32 ft/sec it's height after t seconds is
s(t)=64+32t-16t^2

What is the velocity of the ball when it hits the ground (0)??

2007-08-23 03:00:28 · 4 answers · asked by Anonymous

2x^2-8x+16=0

2007-08-23 02:59:40 · 4 answers · asked by Anonymous

Are ther any mathematics geniuses out there who can help me? i need quick help at the moment with my project and the colleges are closed. :-(

2007-08-23 02:43:00 · 6 answers · asked by aastarmahmod 1

I have a list of numbers that add to 100: (16.55, 55.68, 27.77).

When I round these numbers using ROUND(), I get (17, 56, 28), which add to 101.

When I truncate these numbers using TRUNC(), I get (16, 55, 27), which add to 98.

My question is, is there some function I can use such that rounds the numbers so that the total is still 100? In this case, I would expect the result to be (16, 56, 28), the last two being rounded up because they are closer to the next higher integer than the first number is. Of course I would want the function to work with any group of numbers that add to 100.

Thanks in advance for your help.

2007-08-23 02:12:06 · 5 answers · asked by nzseries1 4

Also probability that 20 rolls of a die will give (b) three sixes
(c) one six, two fives and three fours.


Thanks

2007-08-23 02:08:55 · 1 answers · asked by Kikoo 2

2007-08-23 02:07:48 · 7 answers · asked by kesav 1

To enclose a rectangular field whose area is 68,200 square meter, a farmer used 1,146 m. of fencing material. Find the leanght and width of the field.

Pls. solve this quickly and pls. show your solution. thanks to answers.

2007-08-23 02:01:46 · 5 answers · asked by Anonymous

Q1. Peter walks from her house for 2 km in a direction N15`E and then turns right through 90 degrees to the original directions.She than walks for a further distance of 1 km to arrive at Stephen house.
a) Find the magnitude od the resultant displacement
b)find the angle between this vector and Peter`s original directions
c) What is the direction of stephen house from Peters house?
Q2) A Emirates aeroplane takes off from Tullamarine airport bound for Cairns,and flies for 20 km at an angle of elevation of 30*, and horizontally at 200 km/h . Find the displacemtn from thr take off point after six minutes of horizontaly flying.
Q3)During the Gipspsland floods Ron rows his boat with a velocity od 6km/h directly towards the opposite bank of a river which is flowing at 2km/h A)Find the velocityof the boat relative to the bank of the river. and if the river is 100m wide how far down down the river below the will Rons boat reach the oppositebank

2007-08-23 01:29:35 · 2 answers · asked by Anonymous

2007-08-23 01:13:32 · 3 answers · asked by Calchas 3

can someone tell me how do i remove the brackets and simplify: (17x + 2)(3x − 5)??

can you show this to me in a step by step guide please.

2007-08-23 00:19:07 · 22 answers · asked by . 1