Saturday

July 30, 2016
Total # Posts: 459

**Chemistry**

Please help me! Thank-you! Calculate the concentration, in moles per liter, of a fertilizer solution if 500.0 mL of the solution contains 1.84 g of copper sulphate, CuSO4.
*July 18, 2009*

**Chemistry**

Well it says to find valence electrons to make the Lewis dot diagram, I'm not sure if that helps.
*July 15, 2009*

**Chemistry**

How many valence electrons are in carbon tetrachloride?
*July 15, 2009*

**Math**

It is found that 99% of a particular design of sport parachute have k-values greater than or equal to 1.650/s. If the mean value of k is 1.730/s, determine, to the nearest thousandth, the standard deviation of the distribution of k-values. Help, thank-you!
*June 2, 2009*

**Physics**

Thank-you, very much!!!
*June 1, 2009*

**Physics**

Okay, relevant equations: v(subscript)t=g/k or k=g/v(subscript)t My attempt at the soloution, honestly, I have no clue, me and a friend have attempted this question and we still cannot figure it out. Please help me, I am totally lost.
*June 1, 2009*

**Physics**

Somebody please help me, I am really having problems. Thank-you!
*June 1, 2009*

**Physics**

For beginner parachutists, the terminal velocity must be less than 5.00 m/s, and the parachutes used have a k-value that is normally distributed with a mean of 2.05/s and a standard deviation of 0.04/s. If the acceleration due to gravity is 9.81 m/s^2, determine the ...
*June 1, 2009*

**Physics**

The equation describing the velocity of the ice falling from the wing as a function of time is v=45(1-(0.804)^t). Determine algebraically the time required, to the nearest tenth of a second, for the ice to reach a velocity of 98% of its terminal velocity of 45 m/s. (v=velocity...
*June 1, 2009*

**Math**

Can somone please help me with this question. Thank-you! Solve for x if 125^3x-1=25^x+4
*May 17, 2009*

**Math**

Hi, I'm really having problems with this question, can someone please help me. Thank-you! Algebraically solve for 0<phaeta<2pi, 2cos^2 phaeta-7 cos phaeta +3=0
*May 17, 2009*

**Math**

I asked this question yesterday, but I am still having alot of trouble, can someone please help me. Thanks. If 1-cos^2x=0.8725, and x is acute, determine the value of x correct to the nearest tenth of a degree.
*April 19, 2009*

**Math**

Can someone please help me I am really strugling with this question. Thanks!
*April 18, 2009*

**Math**

If 1-cos^2x=0.8725, and x is acute, determine the value of x correct to the nearest tenth of a degree.
*April 18, 2009*

**ict-SraJMcGin**

Sorry i didn`t reply sooner ive only just looked at the post.Thankyou so much for finding the images it was kind of you to use the time you had spare to help me. thanks again:)
*March 29, 2009*

**ICT-Sra + Writeacher**

Thanks both of you for your help .
*March 27, 2009*

**ICT**

I need to design a cyber anti-bullying logo. ive got no idea. any ideas id be so grateful for . thankyou
*March 27, 2009*

**Math/Algebra do u know how to do slope intercept?**

yo sup peops 2x - is y -
*March 26, 2009*

**Math**

Solve for the value of x. x to the power of -2/3=9/4
*March 8, 2009*

**6th grade**

Is there a web site that helps make sentences with the words that I have?
*February 3, 2009*

**BEH 225**

Behavioral analysis and diagnosis of medical conditions used in the DSMIII such as schizophrenia, bipolar, add, and depression .... Various medications have effetively allowed people to live close or close to normal lives by equalizing biological imbalances : ).
*January 20, 2009*

**science**

Thank you the sites look very helpful!
*January 20, 2009*

**science**

I need a really cool unusual idea for my 5th grade science fair project - any ideas would be appreciated. Thank you,
*January 20, 2009*

**Chem**

That's correct. Just play around with the number of sig figs (there should be 3) and your answer will be correct.
*January 18, 2009*

**american literature**

In "Where the Cross is Made" how does O'Neill indicate what is real or fantasy?
*January 12, 2009*

**writing**

what should we do to write a good paragraph?
*December 30, 2008*

**first aid**

when do we experience nose bleeding?
*December 30, 2008*

**disease**

how can we control asthma?
*December 30, 2008*

**English**

for your first question, we use would as a past tense.
*December 30, 2008*

**science**

i"m in seventh grade
*December 30, 2008*

**science**

what science project can i create in the category of space?
*December 30, 2008*

**science**

different inventions
*December 30, 2008*

**Writing Paper**

what should we do to write a good paragraph?
*December 29, 2008*

**please help me unscramble this word**

RSECERBAINR
*December 11, 2008*

**science**

what kind of change is it when water goes through a water cycle
*November 15, 2008*

**English**

Answer the freaking qusitions
*October 8, 2008*

**US History**

the thirteen colinies of what country from Europe and In what year did the thirteen colinies declare their independence from britan what year was it
*September 28, 2008*

**science**

cells are the basic units of structure and function in living organisims ture or false
*May 17, 2008*

**Science**

Two students were testing the amount of fertilizer that would best promote the growth of strawberries in a garden. Which of the following could be an unavoidable source of experimental error? A. length of the study B. variation in the strawberry plants C. the cost of watering ...
*April 28, 2008*

**english**

Please show us were to put the commas in the following sentance: Athens a city in greece named after Athena the Greek Goddess of war and wisdom. This how the sentance was given to my daughter by the Teacher. My daughter tried to dispute the validity of this not only being a ...
*April 7, 2008*

**english**

PLEASE SHOW ME THE PROPER PLACES TO PUT THE COMMAS IN THIS SENTENCE: Athens a city in Greece named after Athena the Greek goddess of war and wisdom
*April 7, 2008*

**math riddle ALGEBRA WITH PIZZAZZ**

To get to the other side.
*April 6, 2008*

**math**

what is the perimeter of a square which has sides of four x + six
*March 25, 2008*

**english**

need help to write a descriptive paragraph on food
*January 21, 2008*

**chem:ionic equations**

write below the complete ionic equation for the reaction of magnesium phosphate with lead(II)nitrate. Include which ions will be aqueous and which compound will precipitate. I understand how to balance the equation, but the example they give me is completely different from the...
*November 27, 2007*

**finance**

Also in gradauate school, and just got this assignment, any answers available?
*September 24, 2007*

**statistics**

Does anyone know how to solve these two problems. Solve the problem. Find the critical value za/2 that corresponds to a degree of condfidence of 98%. Express the confidence interval in the form of ^p _+E. 0.033<p>0.493
*August 28, 2007*

**math**

what is a number model? Since this is not my area of expertise, I searched Google under the key words "number model" to get these possible sources: http://www.minet.uni-jena.de/~novak/model.html http://72.14.253.104/search?q=cache:Jv_3THbD6vIJ:andean.kulture.org/owen...
*February 27, 2007*

**help me unscramble this word**

RSECERBAINR
*January 25, 2007*

**maths**

how do i change x^2-4x-32=0 into (x+4)(x-8)=0 x^2-4x-32=0 => x^2-8x+4x-32=0 => x(x-8)+4(x-8)=0 => (x-8)(x+4)=0 OR (x+4)(x-8)=0 X2 -4x -32 = 0 JUst factor it. It factors into (X-8)(X+4)=0
*December 21, 2006*

**Pigskin Geography**

what is the kudzu klash
*December 9, 2006*

**Biology**

what is the lense in the eyepiece of a microscope called? I thought it was just called a lens. However, since this is not my area of expertise, I searched Google under the key words "microscope parts eyepiece" to get these possible sources: http://www.microimaging.ca...
*November 28, 2006*

**math (unit rate)**

how would i get the answer to this problem-$1.60 for 8 rolls? I think you are asking how much it would be for 1 roll. If it is $1.60 for 8 rolls, you need to divide this my 8 to get the price for 1 roll. 5y6y67
*October 22, 2006*

**math**

is 765/2023 simplified?!!? I think it is. Nope, it isn't, 765 = 32*5*17 check the divisor of 765 into 2023 what do you mean What do you mean?Your making it more difficult for her! What am I making difficult here? All we need to do is find the factorization of one of the ...
*October 19, 2006*

**History**

which act upset the conolists because it was a direct tax on the colonies? wouldn't it be the stamp act??? http://www.nps.gov/revwar/about_the_revolution/timeline_of_events.html why did the colonists go to war with britain.
*October 19, 2006*

**SCIENCE**

What is the uses a ribosome? wouldn't it be to feed the copy of DNA and to make proteins out of amino acids. What is an amino acid made of and what is it's uses? wouldn't that one be it is made of three bases and it is used to make proteins. sorry the first ...
*October 18, 2006*

**history**

1)the seond Continental Congress did all the the following except a)approve a ban on exports and imports with Great Britain. B)appoint George Washington military commander. 2)the first contnental congress did all the following except a)create a colonial army and appoint George...
*October 18, 2006*

**meaning of a word**

decentralization basically means state government. so it is asking what was so bad about giving all the powers to the states under the Articles
*August 8, 2006*

**HELP PLEASE!!**

i need to know how to convert liters to decimeter and all of that by tomorrow.like for instance one of the questions on my homeowrk says write the letter of the equation that expresses an equal value.a)1L=1 dm b)1L=1cm cubed.so which on would it be? pleasse help me!!!! 1 liter...
*August 16, 2005*