Wednesday

August 24, 2016
Total # Posts: 873

**chemistry**

pH = -log[H] pH = -log[0.0001] pH = 4
*April 7, 2010*

**math**

how many liters of water must be added to 30 liters of a 20% alcohol solution to dilute it to a 15% solution?
*April 6, 2010*

**math**

how many liters of water must be added to 30 liters of a 20% alcohol solution to dilute it to a 15% solution?
*April 6, 2010*

**Probability/Stas**

An instant lottery gives you probability of 0.023 of winning on any one play, which are independent of each other. If you play 6 times, the probability that you win on none of your plays is: The answer is suppose to be .8902, but I got 0.895. I took 0.23 to the 6th power and ...
*March 30, 2010*

**Math**

Please help me! I don't even know where to start :( my teacher took this question up on friday but i was sick, and we have a test tomorrow! -Car A travels from Barrie to Subuiry at an average speed of 90km/h -Car B travels from Subury to Barrie at an average speed of 80km/...
*March 7, 2010*

**SCIENCE**

Could someone give me some advice on how to tackle this question please? Explain briefly why the changes in albedo and the other factors give rise to the changes in the GMST, relating your explanation to the water cycle. Is this an example of positive or negative feedback? ...
*February 23, 2010*

**Science**

Hello, could someone help me with this question please? Explain how burning wood or coal to heat your house may contribute to global warming by altering the energy balance at the Earth's surface? Thank you
*February 22, 2010*

**science**

how does a solution form?
*February 18, 2010*

**english**

is this a ryhme thing? maybe a record?
*February 11, 2010*

**French**

thank you! (: thats what my teacher told us, I just forgot until now
*February 11, 2010*

**French**

Alrighty, so i have to write a journal entry about a time in my life when i felt left out. one of the questions is Qu'est-ce que t'es arrive? I think I know what the question, but I have no idea how it relates to the topic. Could somebody please tell me what the ...
*February 11, 2010*

**math**

PROBLEM 2.... i^3 - i^2= -i + the square root of -1^2= -i + 1i is this correct?
*February 9, 2010*

**math**

it makes sense now...thanks!!
*February 9, 2010*

**math**

is this the answer bob purley??? thanks for your help!!
*February 9, 2010*

**math**

Reiny... are these the correct answers?? problem #1: (3+2i)^2= (a+b)^2= (3+2times-1)= (3+1)^2= 4^2= 16 problem #2: i^3-i^2= a-b= -i- -1 ??????????????????????????
*February 9, 2010*

**math**

thanks...can I ask u to tell me if I'm correct when I do the problems please and repost back?
*February 9, 2010*

**math**

Perform the indicated operations and write the answer in the form a + bi, where a and b are real numbers. Problem #1 (3+2i)^2 Problem #2 i^3 - i^2
*February 9, 2010*

**math**

hey how come u didn't mind giving the correct answer this time drwls????
*February 9, 2010*

**ALGEBRA**

I did in the math post I did right after this one....perhaps u can see if I still did it wrong? Thanks.....
*February 9, 2010*

**ALGEBRA**

i did the work on them...they werent right...i just want to know if im right after i try to solve the problem...thanks
*February 9, 2010*

**ALGEBRA**

Wow drwls....that was pretty rude and entirely unnecessary!!
*February 9, 2010*

**ALGEBRA**

I need this in a final answer form please :)
*February 9, 2010*

**ALGEBRA**

Perform the indicated operations and write the answer in the form a + bi, where a and b are real numbers. Problem #1 (3+2i)squared Problem #2 icubed-isquared
*February 9, 2010*

**algebra**

THANKS DONGO!!
*February 9, 2010*

**algebra**

write a polynomial that expresses the area of a rectangle whose length is 3 feet more than twice the width
*February 9, 2010*

**Science**

thanks !!
*January 26, 2010*

**Science**

What is weather most effected by? Convection Conductions Radiation thanks! (:
*January 26, 2010*

**physics**

Another question I'm having a hard time grasping; I followed a solution one of the tutors posted involving a similar question, but I have a feeling there is some mistake I am making. The question asks to find out what the distance should be from a source if you want the ...
*January 21, 2010*

**physics**

Thank you! That really helped. Now I'm getting an answer of 34 which seems reasonable, according to what the question is asking. Also, if you don't mind answering, how would you know to use the exponential decay equation or the linear equation? Are there certain ...
*January 21, 2010*

**physics**

A sheet of 6 cm in thickness causes the original intensity to decrease to 59% of its original value. You are trying to build a soundproof room that reduces sound coming in and out by 95%. That is, the intensity after crossing the walls is only 5% of the initial value. What ...
*January 21, 2010*

**Science (optics)**

alright, so does anybody have a right answer? lol
*January 21, 2010*

**Science (optics)**

Please help me!!!! A swimmer looks up from underwater in a pool and sees a tree. The light traveling in the air makes an ancle of 40 degrees, with the surface of the water. Calculate the anglethe light ray makes with the surface of the water ( n= 1.33) while traveling in the ...
*January 21, 2010*

**please help!**

You are 10 m away from a sound source of intensity comparable to the background noise in a very quiet room (20 dB). If you want the intensity in dB to double, you must move to a distance ... A) 100 m B) 20 m C) 7 m D) 5 m E) 1 m the answer is 1 m, but I'm not sure how to ...
*January 20, 2010*

**pilgram**

Managing Working Capital. A new computer system allows your firm to more accurately monitor inventory and anticipate future inventory shortfalls. As a result, the firm feels more able to pare down its inventory levels. What effect will the new system have on working capital ...
*January 13, 2010*

**math**

how do you find the surface area of a prism? and the volume of a rectangular prism?
*January 10, 2010*

**Intro to Chemistry**

How many milliliters of 5.50 M H2SO4 must you use to prepare 500.ml of 0.2 M sulfuric acid solution? I know I need to use the formula M1V1 = M2V2 but I'm not sure how to calculate the problem?
*December 23, 2009*

**6th grade**

how do you estimate the product or quotient for mixed fractions?
*December 10, 2009*

**Human resources**

List examples of tangible and intangible forms of organizational culture. Which form of organizational culture is the most powerful agent for influencing ethical behavior by employees in human service organizations?
*December 9, 2009*

**English (quotes)**

okay thanks so much!
*November 30, 2009*

**English (quotes)**

hi! uhmm i am working on quotes right now. i have to identify who the speaker is and then state the significance of the quote to the play (shakespeare) i was just wondering if somebody could give me some points on how to write significance? thanks!
*November 30, 2009*

**science**

what does cell division and mitosis have in common?
*November 23, 2009*

**science**

compare and contrast cell division and mitosis. give a breif paragraph response.
*November 23, 2009*

**math**

the total number of horses and people at a riding academy one sunday was 39.The total number of legs at the academy that day was 124.How many people were at the riding academy that sunday?
*November 19, 2009*

**religon 7th grade **

who was caleb from the hebrew bible? give a breif explanation
*November 19, 2009*

**religon **

who was caleb in the hebrew bible? give a breif explanation.
*November 19, 2009*

**science**

how is cell division different than mitosis?
*November 10, 2009*

**science**

how is DNA copied?
*November 10, 2009*

**Grd.10 Science**

Thats what i was thinking! I'll go with that...thanks :)
*November 5, 2009*

**Grd.10 Science**

So i did a science lab today, and i am supposed to come up with the skeleton equation for it The chemical reaction is decomposition (starting with one compound that will break off into 1 or more compounds after reaction) This is what i have so far : Cu (CO3) ---> CO2 + ____...
*November 5, 2009*

**kinematics**

An individual's arm segment is .18m long and has an angular velocity of 117degrees/s. What is the tangential velocity of the wrist?
*November 4, 2009*

**science**

how are ammonia, salt and water alike? how is salt different from glucose, salt and water?
*October 21, 2009*

**science**

compare and contrast the 2 new cells formed after mitosis and cell division,.
*October 17, 2009*

**science**

please describe what happens to chromosones before mitosis..
*October 17, 2009*

**CHEMISTRY **

Hydrogen cyanide, HCN, can be made by a two-step process. First, ammonia is reacted with O2 to give nitric oxide, NO. 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g) Then nitric oxide is reacted with methane, CH4. 2 NO(g) + 2 CH4(g) → 2 HCN(g) + 2 H2O(g) + H2(g) When 28.6 ...
*September 27, 2009*

**algebra 1A**

"8 less than one-sicth of some number, w can be expressed algebraicaly as?
*September 17, 2009*

**geography**

i need help to unscramble a few words from chapter 1. the word looks like this "nat ernuimgano"
*September 7, 2009*

**math**

Can you find the 11th term of the arithmetic sequence: 5, 12, 19, 26.
*August 1, 2009*

**Science**

this is kinda a silly question, but not really. I am trying to get the correct spelling for an illness. Menengium ?? it is when the membrane swells. it causes terrible migranes, stiff neck and can also cause a fever. you can have it as viral, or bacterial. can somebody please ...
*July 17, 2009*

**1st grade**

thanks
*June 15, 2009*

**1st grade**

I can't play now, can you come back later? Mike said, "I like grape soda". can i used these as sentences
*June 15, 2009*

**1st grade**

What is your name; asked Anita.
*June 7, 2009*

**1st grade**

He and I was taking the dog for a walk. can i used that for a sentence?
*June 2, 2009*

**1st grade**

then does story has two syllables
*June 1, 2009*

**1st grade**

does cry has two syllables?
*June 1, 2009*

**1st grade**

can i used this as a sentence? Mike joins our soccer team today. Their family has alot of wealth.
*June 1, 2009*

**math**

oohh okay. thanks
*May 26, 2009*

**math**

Okay. so say their is a list of numbers: x y 0 3 1 5 2 7 3 9 4 11 I know how to answer a question like "use an equation to figure out Y when X is..." but how do you figure do " figure out X when Y is" ? I konw that the formula is y=mx+b but i don't know...
*May 26, 2009*

**english**

does cow, how, now and show have a long o sound
*May 18, 2009*

**English**

Is Mating Ritual in a sentince a proper noun? Like in a report, would it be capitalized?
*May 13, 2009*

**hca 230**

oh thanks soooooooo much! i thought that was it but i couldnt find anything on the net so i was not sure but thank you!!
*April 13, 2009*

**hca 230**

doctors to listen able to ask questions doctors to make me feel at ease for the doc to fully explain step by step sorry i posted it in the wrong spot :0
*April 13, 2009*

**hca 230**

compose a list of perspectives for patients i found a lot on caregivers but nothing on patients
*April 13, 2009*

**HCA 230**

oh thakz
*April 13, 2009*

**HCA 230**

doctors to listen able to ask questions doctors to make me feel at ease for the doc to fully explain step by step
*April 13, 2009*

**math 3rd grade**

diff is 5, please explain answer
*March 18, 2009*

**math 3rd grade**

look at the table below. IN -11-10-9-8-7-6 OUT- 6- 5-4-3-2-1 what is being done to the "IN" numbers to get the "OUT" numbers?
*March 18, 2009*

**Math (grade 4)**

how is the toal number or sides of the faces related to the number of edges ? (my little sister needs help)
*March 5, 2009*

**Math**

Oh thank you so much!!!
*February 25, 2009*

**Math**

Okay. So i am getting frusterated I was given a math sheet. On it has the anwsers. I have tried to get my answer to match up, but I can't get it. COuld somebody please help me? 10-(2y-6)-y y is 8 *The answer is -8.* Thanks!!
*February 25, 2009*

**English**

thanks!!! :)
*February 9, 2009*

**English**

What would be a good characteristic for somebody who always wanted attention ? it's on the tip of my tounge! thanks...
*February 9, 2009*

**math**

How are percents like fractions? example
*February 4, 2009*

**math**

what is a non-unit rate?
*February 1, 2009*

**math**

what is the difference between a ratio and a rate? what is a non-unit rate?
*February 1, 2009*

**math**

for every 8cds sold, there were 12 dvds sold. a combined total of 70 cds and dvds were sold. how many cds were sold that day? write a proportion to show the relationship and solve it to find the number so cds sold
*January 25, 2009*

**geography**

it was to do with immigration to Canada. so like...uh. i duno. my teacher makes no sense. This the question : What does person suitability mean? yeah. i'm really confused...and my exam is comming up!
*January 24, 2009*

**geography**

what is person suitability? (i copied it down wrong in a note)
*January 24, 2009*

**science**

how are elements and compound alike
*January 23, 2009*

**science**

pure gold is highly malleable. describe a use og gold when this property is not desirable
*January 23, 2009*

**2nd grade math requestion post**

Okay, my child is doing problem solving lesson 5-7 in scott foresman addison wesley book. The question that we are having a problem with is a number line. there are 10 spaces in the number line and the clues are: Clue 1: the number are between 70 and 82 Clue 2: the first ...
*January 20, 2009*

**2nd grade**

Okay, my child is doing problem solving lesson 5-7 in scott foresman addison wesley book. The question that we are having a problem with is a number line. there are 10 spaces in the number line and the clues are: Clue 1: the number are between 70 and 82 Clue 2: the first ...
*January 20, 2009*

**geography**

thanks!!!
*January 17, 2009*

**geography**

Does water heat up and cool down, faster of slower than land? I can't remember :S thanks..
*January 17, 2009*

**math**

Thank you for explaining.
*January 14, 2009*

**math**

I have no idea what you mean.
*January 14, 2009*

**math**

Due to dwindling reserves of copper ore, the price of a 100-foot spool of copper wire increased 20% this year to $144. What was the old price (last year's price) for a 100-ft spool of wire? $130 $145 $120 $115
*January 14, 2009*

**Geography**

OHHH okay :P thanks...I think I got it now :)
*January 12, 2009*

**Geography**

Is the United Kindom just the united kingdom, or is it made countries like England? I know that sounds stupid...but can somebody help me please?
*January 12, 2009*

**geography (population)**

Hello...uh yeah I have this one question i'm not really understanding....this is the question List the 5 largest immigrant populations in Canada and their population. yeah...I don't actually even understand the quesiton!.....like...Immigrant population? uh?! help me ...
*January 5, 2009*

**math**

The range is the highest number subracted by the lowest number. 1 3 2 4 5 9 6 the highest number is 9, the lowest is 1....just subtract 1 from 9 and your range is 8 :) I hope I helped
*January 5, 2009*