Tuesday

August 30, 2016
Total # Posts: 1,633

**chemistry**

Please help me with this question For the system, PCl5 (g) --> PCl3 (g) + Cl2 (g) K= 26 @ 3000C In a 5.0 L flask, the gaseous mixture consists of all three gasses with partial pressures as follows: PCl5 = 0.012 atm PCl3 = 0.90 atm Cl2 = 0.45 atm Is the system at equilibrium...
*March 8, 2008*

**math**

If the question is "What percentage of x is y", then you would just divide x by y and multiply by 100 (y/x*100). So for instance, here we just put the numbers in and get 7.7*10^9/2.58*10^12= 0.002984496124031007751937984496124 multiply that by 100 and get: 0....
*March 8, 2008*

**Math**

Where is your function information?
*March 6, 2008*

**English expression**

He is not only a great baseball player but also a fine pianist. a. preposition not only but also b. adjective c. correlative d. adverb
*March 6, 2008*

**Math Calculus**

I'm not sure how this is calculus... it sounds more like plain probability. So you can figure that there are 2^3*6=48 total possibilities for the outcomes of your tosses (6 for the die and 2 for each coin which are then multiplied together). If your friend only tosses 1 or...
*March 6, 2008*

**Science - Proof of Propositional Logics**

I am being asked if I can prove P, L, Q? (without using resolution-refutation). Propositional clauses: 1. P -> V 2. !P -> (!V and F) 3. (V or F) -> Q 4. Q -> L From here I was able, with resolution-refutation, to determine that we cannot prove P but we should be ...
*February 9, 2008*

**maths**

2,7755,638 no need to thank me !! :_)
*February 1, 2008*

**English**

Not at all. A noun is a person, place, thing, or idea (or concept). This also includes emotions (when properly derived into noun form). John, (The) President, Canada, clock, peace, and happiness are all nouns. A verb is an action -- what the subject of a sentence does. Note ...
*January 30, 2008*

**advanced function**

Find an equation with the given form in each case below y=sin through(pie/2, 0)
*January 22, 2008*

**math**

Use a graph to solve each system of equations. 3.4x = 6.3y = 4.4 2.1x + 3.7y = 3.1
*January 10, 2008*

**algebra II**

A formula for the volume of a sphere is V=4/3 pie r^2. If the radius is 6c^2d^3, what is the volume of the sphere? a. 288 pie c^6d^9 b. 288 pie c^5d^6 c. 8 pie c^2d^9 d. 216 pie c^6d^9 If you could explain this to me.thanks and how do you find x int of a linear function. I'...
*January 9, 2008*

**chemistry**

oh sorry, i didnt mean to change those formulas. thanks for the help
*January 9, 2008*

**Algebra**

Can you explain slope (y=mx+b) i am having difficulty grasping the concept?
*January 9, 2008*

**history**

what were 3 groups of people that were effected by the proclamation of 1763
*December 19, 2007*

**literature**

the easy company from the 101st airborne. like the tv series band of brothers.
*December 13, 2007*

**literature**

im writing a research paper on the easy company of wwii. well i have some info but my teacher said i have to make it controversial. any ideas on how i could do that. if so please get back to me
*December 13, 2007*

**Orbital Dynamics**

Quit trying to cheat.... Keep on failing miserably.
*December 13, 2007*

**science**

Can anyone describe what this question means... Describe the big idea of in energy transfer in The Greenhouse effect
*December 9, 2007*

**math**

what is 9ft - 7inches
*December 5, 2007*

**Algebra II**

Hello. I'm in Algebra II and I'm having trouble with this "math project." The idea was to make a piece of "art" and you have to write the equation for each line. I made a rocket because it looked like something and has all the functions we had to ...
*November 28, 2007*

**biology / plasmolysis of human red blood cells**

hypotonic solution
*November 27, 2007*

**Math**

OK. I dont understand how to find the prime number to eliminate. I guess what I am looking for is for how you get 125/72 out of 500/288
*November 25, 2007*

**Math**

What is the simplest fraction of 500/288?
*November 25, 2007*

**finance**

If a firm pays its bills with a 30-day delay, what fraction of its purchases will be paid for in the current quarter? In the following quarter? What if its payment delay is 60 days?
*November 18, 2007*

**Financial analysis**

XYZ Corp. Balance Sheet 12/31 2001 Cash $120 Acct. Receivable 260 Inventory 500 Equipment (net) 620 Total assets $1500 Acct. Payable 350 Mortgage payable 500 Capital Stock (100 shares) 200 Retained earinings 450 total equities 1500 Z corp income statement FYE 12/31/01 Sales $...
*November 18, 2007*

**finanical accounting**

XYZ Corp. Balance Sheet 12/31 2000 2001 Cash
*November 18, 2007*

**finanical accounting**

Z Corp. Balance Sheet 12/31 2000 2001 Cash $ 100 $120 Accounts receivable 250 260 Inventory 400 500 Equipment (net) 550 620 Total assets 1300 1500 Accounts payable 300 350 Mortgage payable 500 500 Capital stock (100 Shares) 200 200 Retained earnings 300 450 Total equities 1300...
*November 18, 2007*

**chem**

the spherical glass contains deeeeeek sample
*November 17, 2007*

**math**

thank you
*November 15, 2007*

**math**

5x+6x-2=10 show the work
*November 15, 2007*

**AP chem**

Thanks!
*November 7, 2007*

**science-physics**

wat up
*November 5, 2007*

**English-Lord of the flies**

How Jacks behaviour contrasts Ralphs and how that presents ralph as a better person.
*October 30, 2007*

**Science**

How does the Sun's rays hitting the Earth affect the seasons?
*October 22, 2007*

**Chemistry**

I see, thanks. Is it safe to say that when the periodic table is divided evenly in two, the elements on the left will always lose electrons when forming ions, and vice versa?
*October 18, 2007*

**Chemistry**

"Would you expect each of the following atoms to gain or lose electrons when forming ions? What ion [cation/anion] is most likely in each case?" Followed by a short list of elements such as Na and Sr. What I'm wondering is how I'm to know? I can't find ...
*October 18, 2007*

**PHYSICS REPOST**

Consider a heavy rope with mass per unit length 2.10 kg/m; a length L=18.00 m of the rope is hanging vertically from a support, as shown. If the support and rope are placed in an elevator accerlerating downward with a=0.800 m/s^2, what is the tension in the rope at point P? (...
*October 14, 2007*

**Physics**

Consider a heavy rope with mass per unit length 2.10 kg/m; a length L=18.00 m of the rope is hanging vertically from a support, as shown. If the support and rope are placed in an elevator accerlerating downward with a=0.800 m/s^2, what is the tension in the rope at point P? (...
*October 13, 2007*

**Physics**

Driving in your car with a constant speed of v=13.0 m/s, you encounter a bump in the road that has a circular cross section. If the radius of curvature of the bump is r=33.2 m, calculate the force the car sear exerts on a 72.7 kg person as the car passes over the top of the ...
*October 13, 2007*

**Chemistry**

Never mind, Hg is mercury. Someone helped me offsite.
*October 12, 2007*

**Chemistry**

If the amount of mercury in a polluted lake is 0.4 µg Hg/mL, what is the total mass in kilograms of mercury in the lake? (The lake has a surface area of 100mi^2 and an average depth of 20 ft.) I'll probably be able to solve this once I know what it's going on ...
*October 12, 2007*

**Math**

I see, thanks. I must have been doing it wrong when it didn't work.
*October 12, 2007*

**Math**

I don't have any specific problems I need help with, but I'm a bit confused about two things: 1) Where 2^x - 1 = y, is x or y the Mersenne prime? 2) I have noticed that in some cases, such as 27 * 3, I can break the problem up and arrive at the correct result: 27 * 3...
*October 12, 2007*

**biology**

what is the hollow ball of cells formed during cleavage?
*October 11, 2007*

**Biology**

What is an isolecithal egg
*October 11, 2007*

**anthropology**

I suppose the discrimination against many people who look like Arabs/Middle Easterners and Muslims in general after 9/11 and the events after it could be considered a global apartheid. Think of any recent racial discrimination common to most of the world.
*October 4, 2007*

**math**

Sorry, I meant square root of 4x to the fourth, unless you mean (four times four) to the fourth, which would be (4*4)^4 and would be solved differently. 4x^4 = 4x * 4x * 4x * 4x, then find the square root.
*October 4, 2007*

**math**

Square root of four to the fourth? This'd be written as sqrt(4^4). 4^4 = 4 * 4 * 4 * 4. Find the product of that, then the square root of the product.
*October 4, 2007*

**please proofread my paragraph**

1. "I was surrounded in noise every day" "I was surrounded by noise every day" 2. "I liked how everyone follows the rules and how everyone drives their car in their own lanes." You've changed tense in the middle of the sentence here; try "...
*October 2, 2007*

**math**

Oh! Thanks. XD I've been rearranging polynomials all day and I swear it's hardwired now. "Parentheses; distribute, resistance is futile"
*October 2, 2007*

**math**

Actually, I come to h = 160 here (?) so I think I've done something wrong. Are you not supposed to distribute when multiplication is used as in (32 * h)? Sorry, you might want to wait for someone else to explain.
*October 2, 2007*

**math**

You should distribute first: 96 = .5(32) + .5h 96 = 16 + .5h Do you know what to do from here?
*October 2, 2007*

**math**

That's better. The area of the rectangle is (12 * 8) or 96 sq. in. 96 = .5(32 * h) Solve for h; post if you need more help.
*October 2, 2007*

**math**

Is there enough information to solve this? I can't figure out how it might be set up (even plugging in answers to see if they fit) without more information, such as some about the rectangle, or the area of the triangle. Maybe someone else knows.
*October 2, 2007*

**math problems**

2(24 * 9) + 2(18 * 9) = ? (Four walls -- two 24 by 9 and two 18 by 9, equal the amount of wallpaper needed). Don't forget to convert the result from feet to yards.
*October 2, 2007*

**biology**

Plankton, I think, as most other marine organisms depend [at least indirectly] on plankton, as they feed on them or feed on those who feed on them, and the absence of the base of a marine food chain would cause more problems overall than that of a group of predators.
*October 2, 2007*

**Math**

Compute is to calculate or evaluate.
*October 2, 2007*

**math**

Fractions are converted to decimals by dividing a by b in a/b. For example, 3/4 = .75. Some decimals and fractions are easy to remember -- such as 1/2 = .5, but most you will have to calculate on your own.
*October 2, 2007*

**Maths**

I thought that one million billion would be represented as (10^6)^9 in which case it would be 10^54 but the handy-dandy calculator begs to differ. The output is the same for 1,000,000*1,000,000,000 and 10^15. I can't explain to save my life, so wait around for bobpursely ...
*October 2, 2007*

**Math**

4(x+5)+3x squared+6(x+1) 4(x + 5) + 3x^2 + 6(x + 1) (^n represents ...to the power of n) First, distribute 4(x + 5) and 6(x + 1): 4x + 20 + 3x^2 + 6x + 6 Then combine like terms 4x and 6x; 20 and 6: _______________ |10x + 26 + 3x^2| ‾‾‾‾‾‾&#...
*October 1, 2007*

**mathematics**

The two-dight number that is divisible by both the sum and the product of its digits?
*September 30, 2007*

**mathematics**

A number n where if the sum of the dights of the number is divisible by n, then the number itself is divisible by n.
*September 30, 2007*

**mathematics**

One of the four numbers where n,has n dights????????????????????????????????????????????????????????????????????????????????
*September 30, 2007*

**math**

The largest integer that is not the sum of two or more different primes?
*September 30, 2007*

**math**

The Pythagorean masculine marriage number?
*September 30, 2007*

**mathematics**

I bet no one knows.
*September 29, 2007*

**math**

Use Google as a converter. These queries: 45 grams in milligrams (or '45g in mg') 3.7m in cm 2.34kilolitres in litres etc. Will all convert for you.
*September 28, 2007*

**Algebra 1**

4n-2+7n=20 First, we can combine the like terms 4n and 7n to get: 11n - 2 = 20 Then, add two to both sides: 11n = 22 Then, divide both sides by 11: n = 2
*September 27, 2007*

**science**

An experiment of your own is generally a reliable way to support or disprove your hypothesis, but if you don't have time or resources for it you could search for similar experiments or Google to see if there's anything written about our ability to locate stimuli ...
*September 27, 2007*

**spanish HELP HELP**

I'm having trouble making sense of the first sentence, maybe because I'm tired, but I think 'le' is correct. In 2, the waiter, being not the direct object but affected by the subject's actions on the DO, is the indirect object, and le is correct. In 3, as ...
*September 26, 2007*

**math**

Yvonne drove 11/2 hours to get to the airport. She arrived at 12.10A.M What time did she leave for the airport? Should she have lunch at the airport? why?
*September 26, 2007*

**Reading**

I believe that's the one. It may be dozed is to napped, but IMO you're likely correct.
*September 26, 2007*

**Reading**

Slipping leads to or is a lesser form of falling. What word pair matches that?
*September 26, 2007*

**math**

Associative property -- however a group of terms is arranged, their sum remains the same.
*September 26, 2007*

**language arts**

The verb they've given you is wrong; you need to find the correct form of it. Present: Speak. Past: Spoke. Past participle: Spoken. I speak, I spoke, I have spoken. If it's used with a helping verb such as 'have', it's likely a past participle. The ...
*September 26, 2007*

**spanish**

Whoops, thanks. XD
*September 26, 2007*

**spanish**

It'd be "a la una y media" just as in "es la una..." unless I've forgotten and am doing it wrong. I haven't had to tell time in Spanish outside of classes, funnily enough, so I could have made a mistake.
*September 26, 2007*

**spanish**

To indicate the time at which something happens, use "a la..." or "a las..." as in: La clase comenza a la una y media y termina a las dos y catorce -- The class begins at 1:30 and ends at 2:14.
*September 26, 2007*

**division**

The result of the operation. In 8/2 = 4, 4 is the quotient.
*September 26, 2007*

**Reading**

A paw is part of a cat. What pair of those choices fits the same description?
*September 26, 2007*

**science**

As far as I know, height is an object's distance from the immediate ground (the distance of the top of a flagpole from the ground below) whereas elevation is the height of an object or area of land above sea level.
*September 26, 2007*

**Algebra**

(y^5)^3(y^3)^2/(y^4)^4 Power of a power: When an exponent has an exponent, both are multiplied and applied to the base of the first. Example: (y^5)^3 = (y^15) When multiplying terms with exponents, the exponents are added: (y^15)(y^6) = (y^21) When dividing, they're ...
*September 26, 2007*

**computers**

n. Data entered into a computer; v. To enter data into a computer (as I am by typing).
*September 25, 2007*

**Grammar -- subject-verb agreement**

Thankya. :o
*September 25, 2007*

**Grammar -- subject-verb agreement**

We're to choose the appropriate verb for the subject El oh el, I fail; I meant pronoun.
*September 25, 2007*

**Grammar -- subject-verb agreement**

Oh, I was doing it wrong, looking at the surrounding context and not the subject it was related to, wasn't I? Thanks.
*September 25, 2007*

**Grammar -- subject-verb agreement**

"Susannah Wheatley, wife of slaveholder John wheatley, took great interest in Phillis's education, and it was (she/her) who taught Phillis how to read and write English." We're to choose the appropriate verb for the subject (Susannah Wheatley), but I'm ...
*September 25, 2007*

**math**

I'm glad to hear it worked out alright. :D
*September 25, 2007*

**math**

It's not usual for some people to feel overwhelmed by such an open-ended assignment -- I was often confused when I wasn't told exactly what I was to do (I worried that I'd do it wrong, maybe?). If it were me, I might go for a poster, and come up with creative ways ...
*September 25, 2007*

**algebra 1**

Are you supposed to solve for something?
*September 24, 2007*

**Robinson**

> is greater than. A good analogy is to imagine that the greater/lesser than sign is a mouth that always turns to eat the larger value. 1 < 2 -- One is less than two; the gluttonous mouth wants the bigger one, of course. ;)
*September 24, 2007*

**French**

The first should be "Parlez-vous francais?"; the other two seem correct from my knowledge of Romance languages, but I don't speak much French and you should wait for someone who does to clarify.
*September 24, 2007*

**Business**

I would list essential services such as medical care and food service (welfare of sorts?), but it seems largely up to opinion.
*September 24, 2007*

**English**

This alone do I abominate – that this confession has been subjected to the despotism and extortion of the pontiffs. To clarify: "This alone do I abominate: that this confession has been subjected to the despotism and extortion of the pontiffs." It seems to be ...
*September 24, 2007*

**science**

What are the four chemical building blocks of cells?
*September 18, 2007*

**riddle help please**

Have you worn a wool sweater?
*September 17, 2007*

**Social Studies repost for Tiffany**

A slave counted as 3/5 of a person.
*September 17, 2007*

**MATH**

Colinears, according to Google search "define:colinear" are vectors which lie along the same straight line. I don't know anything about this so I can't explain further but that may help.
*September 17, 2007*

**Biology**

Styrofoam and toothpicks?
*September 17, 2007*