Saturday

April 19, 2014

April 19, 2014

Total # Posts: 568

**math**

A theater group made appearances in two cities. The hotel charges before tax in the second city were 1500 lower than in the first. The tax on the hotel bill was 5.5% in the first city and 10% in the second. After the trip, the total tax paid on accommodation expenses was 431....

**Math**

Find two numbers whose sum is 50 and whose difference is 6. So I'm going to set up a system of equation. x + y = 50 x - y = 6 And I got x = 28 y = 22 Correct?

**Math**

The Sugar Sweet Company is going to transport its sugar to market. It will cost 4375 to rent trucks, and it will cost an additional 175 for each ton of sugar transported. Let c represent the total cost (in dollars), and let s represent the amount of sugar (in tons) transported...

**Math**

Ah sorry. Equation: 3a-b=2

**Math**

Give an ordered pair (a,b) of numbers that satisfy the equation. I got (1,1) but cant i also be (2,4)? I'm not sure how to answer that Also, Write each equation for the vertical and horizontal lines passing through the point (7,-5) in (x,y) - coordinates I do not know to d...

**Alg III AGAIN :)**

This one is hard. 5 - |3-2x|/3 = 4 How do I begin to do this? -|3-2x|/3 = -1 -|9-6x| = -3 or -|9-6x} = 3 ????

**Alg III**

OHHH! I see. Thanks alot!

**Alg III**

Solve each absolute value equation. 3 + |x| = 5 My work: 3 + x = 5 or 3 + x = -5 x = 2 or x = -8 The book says that I am wrong. I do not know why.

**Alg III**

Ah I see, but I thought that an absolute value cannot equal a negative number. Maybe I'm just over thinking it.

**Alg III**

Solve each absolute value equation. |x - 3| = 1 Okay here is what I did: x - 3 = 1 x = 4 or x = -4 The book says {2,4} I'm very lost. Can someone help me?

**algebra**

Use the order of operations. 4*8 = 32 32-3*6+3 32-18+3 = ??

**Delta T**

Thank you! I feel about better. I'm at school right now and just got done with my chemistry test.

**Delta T**

In the delta T formula how do you find i = ? If its ionic like NaCl then i = 2 What if its like C6H12O6? i = 1 ? or i = 3? Since that is not ionic i would assume it will be 1

**zero cubed**

Rule: Zero with an exponent of any number will always be zero.

**French**

matieres

**Chem**

How much water must be added to 500.mL of .200M HCL to produce a .150M solution? (.500mL x .200M)/.150M = .667mL Correct? A chemistry student needs 125mL f .150M NaOH solution for her experiment, but the only solution avail. is 3.00M. Describe how the student could prepare the...

**dilution**

Many labs keep bottles of 3.0M solutions of the common acid on hand. Given the following molarities of the concentrated acids, determine how many mL of each concentrated acid would be required to prepare 225mL of a 3.00M solution of the acid Acid: HCl Molarity of Concentrated ...

**Chemistry**

Water had the lowest bp of 100C b/c it has no solute to block the movement which cause to have a lower bp when heated. Water with a solute of sugar has a slightly higher bp of 101C because it has a solute o block off some of the waters movement to the top. Water and salt had t...

**Chem**

water has no solute to block its rapid movement when heated which causes a lower boiling point. Would that be somewhat better?

**Chem**

Why does H2O + Sugar have a higher boiling point than Water? I said that H20 + Sugar has a solute of sugar which absorbs some of the heat when boiled. Is that correct?

**DrBob22**

Can you check my answer in the last boiling point topic I posted? Thanks.

**Boiling point (DrBob)**

If you add 2g of NaCl to 23mL of water, what is the boiling point? . 2 g/molar mass Salt = 58.4425 mole of salt delta T = Kb*m delta T = 0.512 x 0.23 = 0.113 or about 113 C. I tried to model this problem like you did, but I don't know if I did it correctly.

**Boiling point**

You add 2g of sugar into 23mL of water. Estimate the boiling point. I would say its above 100 since waters boiling point is 100. So maybe 120?

**Science tutor please check**

Relatively to the ground, you would subtract your speed from how fast the bus is moving. Relatively to the bus, I would guess that you are traveling the speed you are walking towards the back of that bus.

**accounting**

Do you mean return on common sh equity rate? (Net income – Preferred dividends) ÷ Average common stockholders’ equity That is the formula. Since you do not have any preferred dividends then you can leave it out.

**Chemistry**

typo, the PRODUCT is H2O + N2

**Chemistry**

The reactant is H2O + N2 Now balance the equation

**Math Help Pleae**

8x^2(9x^2 - 7x - 66) + 9x(9x^2 - 7x - 66) 72x^4 + 25x^3 - 591^x2 - 594x I could be wrong on this one

**Math Help Pleae**

The formula to find that is y2-y1/x2-x1 (-9 + 3)/(-20 + 7 ) -6/-13 6/13 << that is the slope

**Math Help Pleae**

The first 1 is correct For the second problem, You should make an x and y chart I THINK.

**Hyperbolas**

x^2/16 - (y^2+4) = 1 Vertices: (4,-4)(-4,-4) Foci: (4.1,1)(-4.1,1) am i right?

**Hyperbolas**

Does anyone know the formula to form the "Asymptote square"? It was something our teacher showed us to help us graph your hyperbolas easier.

**Algebra**

1. (x + 5)(x + 1) For the second one, since all of the number can divide by 2, factor a 2 out 2(a - 4)(a - 4) You do the last 2

**Algebra II**

Try 3000e^(.09 x 3)

**English+Grammer**

Is this sentence correct? This sentence makes no sense at all. I ate a grape and went to the mall. or would it be I ate a grape, and went to the mall. Or is it both?

**Proof reading**

Hello, my research paper is due Friday, and I am done with it. I need someone to proof read it and I was wondering anyone is willing to proof read 6-7 pages of text. I know thats alot to ask for, but I need a good grade on this. Is there anyone available tomorrow that think th...

**Resume**

I help my mom manage supplies in her shop, what would that go under? and how would i word that?

**Resume**

I have no idea what to put under my experience section of my resume? Should I just exclude it from the resume? I have no working experience :P

**Sra**

Hey, I'm going to make a resume and I was wondering you you can look over it to see if it looks or not.

**not really school related.**

Okay, I got accepeted for a part time job at school, and the letter says that I should bring a resume. I never had a job before, so how would I bring a resume, but it seems really bad for me not to bring something.

**Math**

Which shape are you trying to find the area of?

**Robert Frost**

What did Robert Frost write about in his poetry? I think he wrote about the common people of America.

**Accounting**

Five Question Evaluate each alternative on: Profitability (shareholders) Legality (society at large) Fairness Impact on the rights of stakeholders Impact on sustainable development (environment) Moral Standards Approach (Velasquez) Is the decision: Of net benefit to society Fa...

**Speed Reading**

GAAA Haha. I'm trying it to read it right now its extremely hard. My brain automatically corrected some of the words though.

**Speed Reading**

So for leisure, speed reading is recommended?

**Speed Reading**

I was thinking the same in that article. I guess I'll throw speed reading out as a way to read things from now on.

**Speed Reading**

Does anyone here speed read? I can do a little bit, but I can comprehend what I read too well when I try to speed read. All I can do is read the words then forget everything. Any tips? Or is that the negative thing about speed reading?

**HORRIBLE!**

Hello, I took my ACT test today, and I think I epicly failed the english part. The part where you had to correct the underlined sentence was really hard. I would narrow it down to 2 answers, but obviously only one can work. Both of them looked correct to me. Also, the read the...

**Answer+Check please.**

It was a tough time during World War II. The United States had enter the second world war, and they were limited on certain supplies. This resulted in the rationing of certain products in the United States. Gasonline, meat, tires and sugar were the few things that were ratione...

**Rationing**

Compare the rationing in WWII to how we have been affected by the wars in Afghanistan and Iraq. How would Americans today react to a government rationing program? Choose 3 of the items you read about that were rationed during WWII and explain whether or not you think they woul...

**chemistry**

1L = 1000mL So 0.0899 * 1000 = ??mL

**Science help**

Well ducks are everywhere in the chat. And the question was scientist wanted to argue that South Africa, Africa, and Antarctica was once connected, which animals would they use to determine that? It didn't ask for india or australia

**Science help**

India : Duck Australia : Duck South Africa : Duck, Goose Africa : Duck Cat Antarctica: Duck Goose cat If scientist wanted to argue that South Africa, Africa, and Antarctica was once connected, which animals would they use to determine that? Would it be just Goose and Cat? Sinc...

**science**

India : Duck Australia : Duck South Africa : Duck, Goose Africa : Duck Cat Antarctica: Duck Goose If scientist wanted to argue that South Africa, Africa, and Antarctica was once connected, which animals would they use to determine that? Would it be just Goose and Cat? Since d...

**Chemistry**

C5H12 + 8O2 --->5CO2 + 6H2O

**Virus :P**

Yea I was thinking that too! In return, I helped you on your post!

**Virus :P**

A virus spreads in a small town. What should first do to find a vaccine for the virus? I narrow it down to "Idenify the Virs" and "Idenify the host of the virus" I say identify the host of the virus first.

**Virus**

Thanks!

**Virus**

Can a virus attach to your cells and steal nutrients from it? Answer: Yes. Can a virus attach to your cell and burst it by filling it up with water? Answer: No Correct?

**Science**

I think I get it. Its 3mph relatively to the plane, but 803mph relatively to the ground. Right?

**Science**

So her total speed is actually 803? Say the airplane was moving forward at 800mph and she walks from the front of that plane to the back would she be traveling at 800-3 = 797mph?

**Science**

Say that an airplane is traveling at 800mph. A woman walks from the back of that plane to the front at 3mph. How fast is that woman actually walking? Is she still walking 3mph? or 800+3= 803mph? I keep wanting to say its 3mph

**calc**

10x+7 + 7x+3 = 180 3x-5 + 6x-40 = 90 I think that is how you set it up.

**Accounting**

????? What do you need?

**social studies**

Goods are mostly stuff that are worth something. You can sell/trade your goods to others. Goods is something of value.

**math/equations**

Six plus m divided by 3 equals 18

**Sra**

Is it true that in France, people get paid to make the language sound more pretty. My teacher told me that people get paid over there to make up words that sound pretty and enforce it.

**French**

Merci beacoupe!

**French**

Also You must not go to sleep while driving ans: Vous ne faut pas dormir pendant la conduite How to be a good driver ans: Comment etre un bon conducteur

**French**

How do you say You must put on your seatbelt? ans: Vous faut mettre sur votre ceinture de securite You must use your signal to turn ans: vous faut utiliser votre clignotant avant de tourner You must not use your phone while driving ans: Vous ne faut pas utiliser votre telephon...

**Sra**

I'll try my luck. Mysterious SraJMcGin :P

**Sra**

Are you going to be on for a lil bit more? Around 1-2 hours now from this post? I really need help with some french, but I have to do some other homework first. I'll check on your reply in a bit. Merci beacoupe.

**Dr.Bob22**

It's on this page. Should be 9 topics down I think.

**Dr.Bob22**

Can you please verify the anwer I gave robb under his chemistry post called "mass-mass". I probably did something wrong.

**Chemistry**

MgCO3 One has a 2 charge and the other has a -2 charge. they both neutralize. For the (NH4)2 SO4 NH4 has a +1 charge and SO4 has a -2 charge As you can see from (NH4)2 SO4 The 2 outside that paranthesis makes the charge a positive 2 which then makes the compound neutralized. S...

**Find the number of moles**

Yeah, the star means multiplication

**Find the number of moles**

Convert it. 1 mole of H20 = 18.01500g H20 67.6g H20 * 1mole/18.01500g = ??mole of H20

**Chem tutor Verify!**

Hmm.. the answer should be the limiting reaction We already know the grams of Zn being used, but we have to find the grams of H3PO4 being used. (50.0gZn) * (1moleZn/65.39gZn) * (97.9953gH3PO4/1moleZn) = 74.93g H3PO4 Now you have to find the limiting reaction (50.0gZn) * (1mole...

**math/equations**

-7=7d-8 add 8 to both sides 1 = 7d divide 7 to both sides 1/7 = d 24 + h/4 = 10 subtract 24 to both sides h/4 = -14 multiply 4 to both sides h = -56 Can you take it from there?

**12th grade chemistry**

Dang it! I did not know what the :[149.096 g/mole] meant until I looked back again. Apparently they gave your the total mass of the compound! I went through and did all that work for nothing! Anyways your answer should not be off by much, but if you it to be as accurate as the...

**12th grade chemistry**

First add up the molarity of your compound 3N= 42.0201 12H = 12.09528 P= 30.97376 4O = 63.99600 Add those number up and you should get 149.08 (I rounded). (8.55mole) * (149.09g/1mole) = ??

**math**

One way to check your answer is to plug what m equals into your original equation (45 - 6300)/30 = 165 That is a false statement.

**math**

What don't you get about the explanation?

**math**

45-m/30 = 165 Multiply both sides by 30 45-m = 4 950 Subtract 45 from both sides -m = 4905 M cannot be negative so change signs on both sides. m = -4905 Now if you plug in what m equals you should get 165 45-(-4905)/30=165

**Math**

Huh? Can you retype the question?

**Sleeping.**

I've thought about that, but does it really take that long for the body to rest? 8 hours of sleep seems like way too much. Also, sometimes if you get bored, you just fall asleep for no apparent reason. I'm probably just weird like that.

**Sleeping.**

Is sleeping a waste of time? Now that I think about it, sleeping seems like a waste of time.

**math**

Find all your like terms and go from there

**math**

(z^-6)^5 z^-30 1/z^30

**Algebra**

Anita, please make your own post on that question and I will gladly help you.

**Algebra**

If you have a negative exponent, just put a one on top of it to make it a positive. Example: 3^-2 = 1/3^2 5^-3 = 1/5^3 7^-3 = 1/7^3

**Algebra**

The is how I would solve it Since its division, you would subtract exopents Since the numerator has a 2 as an exponent and the denominator has a -1 for an exponent I would subtract that 2-(-1) = 2 + 1 =3 3^3 = 27

**Algebra**

in the paranthesis, 10^-4 = 1/10^4 so (10^3*1/10^4)^2 Order of operation tells you to do things in the paranthesis first (0.1)^2 = .01 and if you convert that into a fraction its 1/100

**Algebra**

10n^6 -3n^4 + 3n

**Logging in.**

What is the purpose of the login function on this website? You can always change your name to whatever you want, so why even have it there?

**AP European History**

This is what I think the relation between people and their government is: "government of the people, by the people, and for the people" That was from the Gettysburg address. For the second part of that question, I'm pretty sure there are more than one type of gov...

**Math**

Your right. That is the property of addition, but the problem asks us for slope intercept form.

**Math**

y = -1/3x + 2

**Math**

Brianna, I do not think switching the order of the x will make it the same. The formula for slope intercept form is y=mx+b Where m is the slope

**Math**

Sorry typo The answer is y = -1/3x + 2

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