Science & Mathematics - 18 September 2006

2006-09-18 18:03:24 · 4 answers · asked by Christy 2 in Zoology

Assume that there are 12 board members: 8 females, and 4 males including Carl. There are 3 tasks to be assigned. Note that assigning the same people different tasks constitutes a different assignment.

Find the probability that both males and females are given a task.

ind the probability that Carl and at least one female are given tasks.

2006-09-18 17:59:43 · 2 answers · asked by J R 2 in Mathematics

2006-09-18 17:57:53 · 9 answers · asked by Bill Billington 1 in Physics

2006-09-18 17:57:45 · 11 answers · asked by stagius24 2 in Mathematics

i think the second engine has to work more since compartment is connected with it.......isn't it?

2006-09-18 17:57:19 · 6 answers · asked by Santhosh S 1 in Physics

2006-09-18 17:56:02 · 4 answers · asked by Amit K 2 in Mathematics

It's not difficult kids. The phases of the moon are purely due to what parts of the moon are illuminated by the sun.

The sun always half illuminates the moon, just like night and day on Earth. When you see a cresecent moon, and only see a "fingernail" of it, the remaining part that is illuminated is on the other side of the moon.

When its a half moon, the other bit of the illuminated half is round the other side

When its a full moon, the sun is shining full on the face we see. The back of the moon from us will be dark and in its nightime.

When the moon is new, the reverse side of the moon is illuminated and our side is dark, so we don;t see it.

If you looked back at the earth from the moon it would show the same phases in exactly the same way.

My goodness what do they teach you at school.

2006-09-18 17:55:37 · 5 answers · asked by nick s 6 in Astronomy & Space

Suppose you have a sequence of real numbers a_1, a_2, a_3... such that the sequence converges to some number a.

Let S(a_i) denote the sum of consecutive members of the sequence from i=1 to n.
Show: lim (n goes to +inf) of 1/n*S(a_i) = a.

2006-09-18 17:51:11 · 3 answers · asked by Anonymous in Mathematics

This will give me an "A" for the rest of the school year. He said if x is any real positve number. like 3+2=11 i asked him if he was serious and he said he was. also he said it was a different way of thinking

2006-09-18 17:50:56 · 8 answers · asked by Jose B 2 in Mathematics

2006-09-18 17:50:25 · 8 answers · asked by 1hotmama 3 in Chemistry

My answer is 36.95% Na2co3 and 47.29%NaHCO.... is this right?

A sample weighing 0.5375 g and containing Na2CO3 (106.0 g/mol), NaHCO3 (84.01 g/mol), and inert material is dissolved and titrated with 0.1014 M HCl. The first end point volume (phenolphthalein end point) is 13.41 mL and the second end point volume (bromocresol green end point) is 69.65 mL. Calculate the weight percentage of Na2CO3.

2006-09-18 17:45:44 · 4 answers · asked by vem1225 1 in Chemistry

Dont tell me that your a math teacher or professor!

2006-09-18 17:41:10 · 7 answers · asked by newyorktocountry 2 in Mathematics

2006-09-18 17:40:23 · 12 answers · asked by yar2005 2 in Engineering

Point C has a bearing of N28E from point A and a bearing of N12W from point B. What is the area of the triangle ABC if B is due east of A and 23km from A?

Solve and explain how you go the answer please.

N 28degrees E-----N 12 degrees W ... incase you didnt understand that part

2006-09-18 17:40:06 · 4 answers · asked by adrianchemistry 2 in Mathematics

Answers:
A.) KO2
B.) NaF
C.) KBr
D.) I2

2006-09-18 17:39:37 · 3 answers · asked by Anonymous in Chemistry

2006-09-18 17:39:08 · 7 answers · asked by Anonymous in Biology

Answers:
A.) calcium
B.) Magnesium
C.) Cesium
D.) Sodium

2006-09-18 17:38:38 · 5 answers · asked by Anonymous in Chemistry

Please give me at least 1 example.. which cells have more than one nucleolus in their nucleus?

2006-09-18 17:38:06 · 3 answers · asked by malaysia 2 in Biology

At what speed must a wire 52 cm long be moved at right angles to a magnetic field of induction 0.29 T in order to induce an emf of 1.3 V?

2006-09-18 17:36:18 · 3 answers · asked by xxgodsgift2youxx 1 in Physics

Answer needs to be scientific.

2006-09-18 17:35:04 · 9 answers · asked by Bill Billington 1 in Physics

The primary coil of a tranformer has 700 turns and is connected to a 200 v source.The secondary supplies an output of 900 v.Is this a step-up or step-down transformer?How many turns are in the secondary coil?

2006-09-18 17:32:20 · 5 answers · asked by xxgodsgift2youxx 1 in Physics

2006-09-18 17:31:21 · 10 answers · asked by code_red 3 in Weather

Answers:
A.) H2O is an ionic compund
B.) H2O is a polar covalen molecule
C.) H2O is a nonpolar covalent molecule
D.) H20 has a low dpole moment

2006-09-18 17:28:05 · 14 answers · asked by Anonymous in Chemistry

What is the equivalent resistance of the circuit?What is the current in the circuit?What is the current in each resistor?What is the voltage drop across each resisor?

2006-09-18 17:27:57 · 9 answers · asked by xxgodsgift2youxx 1 in Physics

My HW says to "Determine if each conjecture is true or false b ased on the given information. Explain your answer." It says "Given: collinear points X, Y, and ; Z is between X & Y. Conjecture: XY + YZ=XZ" I am struggling in this subject and need help, if u are planning to say something like "Do your own homework" keep that crap to yourself you will get reported, thx for the people that help =).

2006-09-18 17:26:07 · 2 answers · asked by Anonymous in Mathematics

Military Time? What time is it?
Standard Time? What time is it?
Pacific Time? What time is it?
Eastern Time? What time is it?
Central Time? What time is it?

2006-09-18 17:25:58 · 15 answers · asked by Tweetalette 3 in Other - Science

2006-09-18 17:25:09 · 5 answers · asked by punjab 1 in Engineering

When the three Adams children went to school one morning,they each took one of the others' lunches,In how many ways could the three children have been paired with the lunches so that no one took his or her own?

(A) One
(B) Two
(C) Three
(D) Six
(E) Eight

2006-09-18 17:24:43 · 4 answers · asked by oriedo_droidpower 2 in Mathematics

2006-09-18 17:24:01 · 4 answers · asked by Anonymous in Chemistry

2006-09-18 17:23:51 · 5 answers · asked by Marie H 1 in Biology