Science & Mathematics - 10 December 2006

2006-12-10 05:50:59 · 1 answers · asked by c h 1 in Mathematics

2006-12-10 05:49:20 · 35 answers · asked by Lola M 1 in Astronomy & Space

(-9 - sqrt108)/3

I think the answer is -3 * -2sqrt27 or am I way off.

2006-12-10 05:47:42 · 5 answers · asked by badmf777 1 in Mathematics

Five different cd-rom games: a,b,c,d,e are offered as a promotion by sugar rush cereal. one game is randomly included with each box of cereal.
determine the probability of getting all 5 games if 12 boxes are purchased?

2006-12-10 05:43:25 · 1 answers · asked by Lily K 1 in Mathematics

2006-12-10 05:43:20 · 2 answers · asked by US 2 in Other - Science

2006-12-10 05:43:14 · 11 answers · asked by hhspangle 1 in Earth Sciences & Geology

............. 1
If f(x) = ò t ln t dt, then f ''(x) =
............. x


these were the possible answers in the text to choose from...

a. - ln x - 1
b. ln x - 1
c. 1 - ln x
d. ln x + 1
e. none of these

2006-12-10 05:40:58 · 1 answers · asked by Doug 2 in Mathematics

Please show step by step solving + answer

2006-12-10 05:39:26 · 8 answers · asked by Artful_Dodger 1 in Mathematics

what do we know abou it?

2006-12-10 05:38:10 · 2 answers · asked by Anonymous in Physics

below 0 degrees celcius (i believe that's 32f?).
I checked the ACGIH website but I need to pay to get the answer. Can anyone give me another website with the answer as well??

Thanks!

2006-12-10 05:38:09 · 1 answers · asked by socergrl17 2 in Other - Science

2006-12-10 05:37:49 · 1 answers · asked by abcd 2 in Mathematics

Calculate the solubility of FeCO3(s) in the presence of 0.010 M in Na2CO3 (Ksp = 3.5 x 10^-11)

Calculate the solubility of FeCO3(s) in the presence of 0.010 M KCN. (Kf(Fe(CN)6 4-) = 7.7 x 10^-36) (Ksp = 3.5 x 10^-11)

2006-12-10 05:33:44 · 2 answers · asked by Uli S 1 in Chemistry

ò [x (ln x)^2]^-1 dx =


these were the possible solution in the book, it may or may not help you...

a. ln |ln x| + C
b. (1/2)(ln x)2 + C
c. (3/2)(ln x)2 + C
d. - 1/|ln x| + C
e. none of these

2006-12-10 05:33:44 · 9 answers · asked by chris 2 in Mathematics

I am trying to eliminate the need for a variable capacitor. What capacitor would be needed for 1550 KHz?

2006-12-10 05:33:41 · 4 answers · asked by Dennis Fargo 5 in Engineering

2006-12-10 05:32:38 · 4 answers · asked by a-m 1 in Other - Science

I worked out this:
x1,x2 = are the bits of the first binary numbers(x1 the MSB and x2 the LSB)
x3,x4 = same but with second number.
y1,y2=are the sum, sames as above, but this represents the output.

&= is the "xor" logic gate, and # is "not, the inversor.
-----------------------
x1----\
____ & ----I-----y1
x2----/___ I
_________I%
x3----\ ____\
_____& ----OR------y2
x4----/

ignore the "_________" they mean nothing.

2006-12-10 05:29:01 · 2 answers · asked by Guillermo I 1 in Engineering

2006-12-10 05:27:02 · 3 answers · asked by dominique m 1 in Physics

Tutoring: you tutor Spanish for $15 per hour and French for $10 per hour. You want to earn at least $100 per week.

1)Write an inequality that describes your goal in terms of hours spent tutoring Spanish and hours tutoring French.
2)Make a table that gives the amount of money that you can earn for each combination of hours that meet your goal.

2006-12-10 05:26:50 · 6 answers · asked by Anonymous in Mathematics

I need help balancing these 8 chemical formulas, I need to write the chemical formulas for the reactants, indentify the type of reaction, predict the products using chemical formulas and written form and balance the equation? Pleeeeeeease help me!

1) Aluminum+ Iron (III) Chroide--->
2) Calcium Hydroxide---->
3)Water(use H2O) + Sulfur Trioxide--->
4) Sodium Choride + Magnesium Sulfate--->
5) Nitric Acid + Sodium Hydroxide--->
6) Butane (C4H10) + Oxygen--->
7) Copper (II) Carbonate--->
8) Silver + Oxygen--->

Thanks so much Please HELP!

2006-12-10 05:26:09 · 1 answers · asked by not857 1 in Chemistry

and other subjects like estimation and costing for referance

2006-12-10 05:25:18 · 6 answers · asked by befriendarif 1 in Engineering

Mismas, one of Saturn's moons, has an orbital radius of 1.87 * 10^8 meters and an orbital period of about 23.0 hours. Use Newton's version of Kepler's third law to find Saturn's mass.

Please help me with this problem.
I'm having trouble understanding it.

2006-12-10 05:24:36 · 2 answers · asked by swimmertommy 1 in Physics

58=(1+m)100

2006-12-10 05:24:16 · 12 answers · asked by gypsygirl247 3 in Mathematics

2006-12-10 05:21:47 · 2 answers · asked by Anonymous in Engineering

I have the above formula. u = 10m/s , a=-9.81 s = (distance)

Q1. Need to find time (t in seconds) that it takes for an object to be thrown up in the air 4 metres.

I think answer to Q1 is either 0.546 or 1.4922 can ne one confirm?

Q2. Says calculate time it takes to fall back down to earth. Havent a clue how to do this part can ne one help me? I tried just making "a" positive so that it equaled gravity of 9.81 but this doesnt seem to work

Need answer by Monday please help me
Thanks

2006-12-10 05:19:01 · 9 answers · asked by Perfect-Angel84 2 in Mathematics

If matter and energy are just variations on the same thing (ie you can convert one into the other) then doesn't it follow that time and space are just the same thing? It gets a little hazy here but couldn't we convert time into space and vice versa? I can't help thinking about these things. I need a life.

2006-12-10 05:17:21 · 5 answers · asked by kevpet2005 5 in Astronomy & Space

and if not where would I go to get food for it?

2006-12-10 05:16:36 · 7 answers · asked by mike 1 in Botany

Please justify your answer.

2006-12-10 05:14:30 · 7 answers · asked by murali basa 1 in Earth Sciences & Geology

2006-12-10 05:14:11 · 2 answers · asked by Anonymous in Physics

How long would it take to fall to earth and hit the ground?Strange question i know but it suddenly interests me.

2006-12-10 05:13:40 · 9 answers · asked by dope 1 in Physics

this i saw in discovery .in that a lady send a toy tank with camera in a small cave.after 15m there small comunity of crocodile. i want to know how i can access the same program in net and also where i can get information about that crocodile

2006-12-10 05:13:28 · 2 answers · asked by biokiruku 1 in Zoology