Mathematics - 31 October 2007

Using the MVT(Mean Value Theorem), find the interval that conains c, so that f'(c)=0 for the function f(x)=1/(1+x^2)

2007-10-31 04:36:25 · 4 answers · asked by jULIAN C 2

if z=x+iy satisfies |z-4|+|z+4|=10
then show that (x/5)^2 + (y/3)^2 = 1

2007-10-31 04:31:26 · 3 answers · asked by dposters 1

Solve each of the following systems of linear inequalities graphically.
3x – y 6

Can you please include all steps to this problem so i know how to do it.

2007-10-31 04:28:44 · 1 answers · asked by kristy_n_tx 1

YOu do not have to tell me the answers, just help me i with the steps in getting it. Thank YOu so much! :]

2007-10-31 04:23:03 · 14 answers · asked by Sarah I 2

Possible digits range from 0 to 9. Explanation/work. Thank you !

2007-10-31 04:22:58 · 4 answers · asked by blueanswers 2

2007-10-31 04:21:59 · 5 answers · asked by Anonymous

2007-10-31 04:20:28 · 2 answers · asked by Anonymous

You do not have to tell me the answer, but please help the steps in answering it. Thank You. :]

2007-10-31 04:20:11 · 8 answers · asked by Sarah I 2

2007-10-31 04:19:26 · 6 answers · asked by Joe B 1

Value of x 2 3 4 5 6 7 8

Prob 1/16 2/16 3/16 4/16 3/16 2/16 1/16

x are outcomes of rolling a pair of four-sided dice.

Events s and t are independent with P(s) 1. 1/25
2. 6/25
3. 1/5
4. 2/5

Event a will occur with probability 0.5 and event b will occur with probability 0.6, P(a and b) = .0. the conditional probability of a, given b is
1. 0.3
2. 0.2
3. 1/6
4. Cannot be determined

Event a occurs with probability 0.3 and event b occurs with probability 0.4. if a and b are independent, we may conclude
1. P(a and b) = .12
2. P(a|b) = 0.3
3. P(b|a) = .4
4. All of the above

2007-10-31 04:17:30 · 3 answers · asked by naughtystudent1985 1

I understand this is a simple problem in mathematics but still i have some doubt in it.

For example,lets start with a small number 2^2^3 .....this is simple , its in fact 2^8

But if we had, 2^3^4^5 , a quite big number ... then whats the number ?

my doubt here is

should i take the power of 4^5 first ..........(1)

OR

take the power of 3^4 first ? ............(2)


(1) gives ==> :2^3^(1024)

(2) gives ==>2^81^5

which way to go ? whats the order ? and why ?

can you justify ?

2007-10-31 04:17:24 · 3 answers · asked by calculus 1

please show work because i don't get it. i would appreciate any help

2007-10-31 04:14:34 · 5 answers · asked by Anonymous

According to the answer for question number 4:
http://www.cis.hut.fi/Opinnot/T-61.5100/laskarit/dkkexer2_ans.pdf

If I interpret it correctly, it uses the ~ symbol to represent proportionality. Is this a correct symbol for proportionality?

Thank you very much.

2007-10-31 03:25:27 · 3 answers · asked by I need answers 1

Find all z which satisfy the following, expressing answers in x+iy form :

(i) (2+i)z + 3i - 1= 2 + 2i

(ii) (z-i)/(z-1) = 2/3

Any help will be appreciated

2007-10-31 03:20:31 · 4 answers · asked by Anonymous

Please show work, I'd love to learn something, not just get the right answer.

24k² + k - 3

25w² - 5w - 6

m² - 18m - 40

2007-10-31 03:09:08 · 7 answers · asked by Anonymous

2007-10-31 03:01:32 · 6 answers · asked by Scott P 1

At a certain instance the captain of the ship observed that the angle of elevation of the top of the lighthouse is 50 meters above the water level is 60 degrees. After travelling directly away from the lighthouse for 5minutes, the same captain noticed that the angle of elevation is now 30 degrees. If the telescope is 6 meters above the waterline, find the velocity of the ship

2007-10-31 02:52:12 · 3 answers · asked by delixir_21 1

if the sides of a square are increased by 2 meters, the area becomes 25 square meters. Find the lgth. of a side of the original square.

2007-10-31 02:40:26 · 9 answers · asked by ann m 1

line shown is (0,1), (-1,-4)

a) -1/5
b) 1/5
c) -5
d) 5

2007-10-31 02:31:30 · 4 answers · asked by Anonymous

slope = - 4 and y-intercept = - 3

2)
slope= 1/2 and y intercept=0

2007-10-31 02:26:51 · 6 answers · asked by Anonymous

In a hand of 5 cards how many ways are there to get exactly 3 kings or 4 kings?

2007-10-31 02:23:06 · 4 answers · asked by Anonymous

2007-10-31 02:16:22 · 13 answers · asked by Anonymous

2007-10-31 02:13:37 · 8 answers · asked by Anonymous

help in calculus plzzzz...

2007-10-31 01:52:13 · 3 answers · asked by haidielhakim 1

a. (0,2)
b. (2,0)
c. (-2,0)
d. (0, -2)

2007-10-31 01:35:54 · 3 answers · asked by Anonymous

I'm trying to figure out this proof for my exam later today and my professor and the assigned book are of little help... Any help from anyone out there would be great! Thanks in advance!

Prove that

rad <= diam <= 2*rad

(radius is less than or equal to diameter which is less than or equal to 2 times the radius)

2007-10-31 01:27:11 · 5 answers · asked by Keith 3

2007-10-31 01:23:17 · 4 answers · asked by Anonymous

2007-10-31 01:21:14 · 4 answers · asked by Anonymous

2007-10-31 01:16:03 · 6 answers · asked by letstalkbuiz 1

I cannot get these problems.

1. The volume of a cuboid is 1536m^3. Its length is 16m and its breadth and height are in ratio 3:2. Find the breadth and height of the cuboid.

2. The surface area of a cuboid is 758cm^2. Its length and breadth are 14cm and 11cm. Find the breadth and height.

2007-10-31 01:15:39 · 4 answers · asked by ABHISHEK M 2