Wednesday

October 7, 2015
Total # Posts: 85,639

**CHEMISTRY**

Determine the molar solubility (S) of Ag2CO3 in a buffered solution with a pH of 3.378 using the systematic treatment of equilibrium. Ksp(Ag2CO3) = 8.46 × 10–12; Ka1(H2CO3) = 4.45 × 10–7; Ka2(H2CO3) = 4.69 × 10–11.
*June 3, 2015*

**LA**

Thanks fish and jazmine, I got 100% as well
*June 3, 2015*

**Social Studies**

^^ I haven't found out yet sorry or else I would have helped you
*June 3, 2015*

**Social Studies **

If someone could check my answers that would be great :) 1. What did the effect of the breakup on the Soviet Union have on Cubans? a.Food, medicane, and tools became scarce in Cuba b. Cuba was divided into smaller territories c. The Soviet Union granted Cuba its independence d...
*June 3, 2015*

**SOC120**

Where does evidence/data come from? What what role does Evidence/date play In understanding a theory?
*June 3, 2015*

**Math**

The coefficient is -9, this is because if u rearrange the equation you get -2x^2 -9x +7 the question only asks for the coefficient of x not x^2.
*June 3, 2015*

**Social Studies**

^^^ thank you
*June 3, 2015*

**Social Studies**

Can someone give me a link(s) about the economy of Chile and Venezuela please.
*June 3, 2015*

**math**

a. 29, 41 This is because the pattern is going up by 2's (4, 6, 8...) therefore the next in line is 10 and 12. Hence the answers 29 and 41.
*June 3, 2015*

**Geometry**

The standard equation of a circle is (x-h)^2 + (y-k)^2 = r^2 Where h and k are the coordinates for the centre. Hence(h, k) is (0, 2) respectively. and the radius is 2 units Now all you have to do is substitute it in. (x-0)^2 + (y-2)^2 = 2^2 alas the standard equation is, (x-2...
*June 3, 2015*

**Math**

For all x is not equal to 0 and y is not equal to 0, (2x^-3y^4)^3 / (4xy)^2 = ? F. y^10 / 2 G. 2y^10 / x^10 H. y^10 / 2x^11 J. y^3 / 2x^2 K. y^9 / 4x^4
*June 3, 2015*

**Calculus**

v(t)= t^3 - 3t^2 + 3t Are there any times after t = 0 where the particle comes to a stop? Does the particle ever slow down?
*June 3, 2015*

**economic **

A detailed description with graphs of how milk would have been determine in the abstance of government involvement in the market
*June 3, 2015*

**economics**

in South Africa
*June 3, 2015*

**math**

Between which two rational numbers is located?
*June 3, 2015*

**economic **

A detailed explanation with graphs of how the price of milk would have been determine in the abstance of government involvement in the market?
*June 3, 2015*

**history**

How did President Clinton help bring out the Camp David Accords?
*June 2, 2015*

**Math**

Write the expression in terms of costheta and then simplify. cos^4theta - sin^4theta + sin^2theta Ans: cos^4 θ - 1 - cos^4 θ + 1 - cos^2 θ = -cos^2 θ
*June 2, 2015*

**psych 100**

The basic building block of the nervous system is
*June 2, 2015*

**Health**

hearing
*June 2, 2015*

**reading paragraph and bar graphs**

Casey said that 40 people were surveyed. Is his answer reasonable? Explain
*June 2, 2015*

**Math**

Can -x^2 - 5x + 4 be written as x^2 + 5x - 4?
*June 2, 2015*

**Math**

Write a possible explicit rule for the nth term of the sequence, then use it to find the 20th term. 5, -10, 20, -40, 80, -160.... Ans: a(n) = 5(-2)^n - 1 20th term: -2621440
*June 2, 2015*

**Math**

V, W, and X are part of one polygon, and R, S, T are part of another polygon. So why is V to W calculated?
*June 2, 2015*

**Math**

Determine whether the polygons with the given vertices are similar. Support your answer by describing a transformation. V(3,2) W(8,2) X(1,5) R(6,4) S(16,4) T(3,15) I think they are not similar because V and W are dilated by 2 and X is dilated by 3. They need to be dilated by ...
*June 2, 2015*

**physics**

Mechanical energy is the difference between the kinetic and potential energies of an object. true or false?
*June 2, 2015*

**French**

Thanks!
*June 2, 2015*

**French**

He says he doesn't like to play sports in the winter, and "alors" means so, so I think he goes to the MJC in the winter.
*June 2, 2015*

**French**

"Plage" means beach, and an MJC is basically a club. The reason I ask the question is because it seems like the person in the letter says that he goes to the MJC in the winter, not the summer. And since he says he goes to his uncle and aunt's place in the summer ...
*June 2, 2015*

**French **

Salut! Je m'appelle Karim et j'ai 16 ans. J'habite à Paris avec ma famille: mon pere, ma pere, mes deux freres et ma soeur. Moi, je suis grand et mince et j'ai les cheveux noirs et les yeux marron. Je suis sympa et tres sportif. Je fais du jogging, du ...
*June 2, 2015*

**Math**

So if (0, 0) was reflected over y = x + 1, then would the vector be (-1, 1)? This isn't exactly related to the above question, but just wanted to check. Thanks!
*June 2, 2015*

**Math**

A figure in the coordinate plane is reflected across the line y = x + 1 and then across the line y = x + 3. Find a translation vector that is equivalent to the composition of the reflections. Write the vector in component form. I know the answer is (-2, 2), but how?
*June 2, 2015*

**logic**

Aron: The two double A batteries in my CD player are dead, so the CD player doesn’t work. My television remote control, which also uses two double A batteries, works fine. So if I move the two batteries from my television remote control to my CD player, the CD player will...
*June 2, 2015*

**Math**

It's kind of confusing. Can you show me without putting z.
*June 2, 2015*

**Math**

I need help with this question: Express below function in terms of f(x) if f(x)= x^2 y= 3(-4x-2)^2 + 5
*June 2, 2015*

**Math**

ok tell me if i did this question correct. I just worked out the question. -f(0) =(-3/2, 0) -f(1) =(-1, -4) -f(2) =(-1/2, -4) -f(3) =(0 , -10) -f(4) =(1/2, -16)
*June 2, 2015*

**Math**

I still don't understand.
*June 2, 2015*

**Math**

I need help with this question. Suppose that f(0)= 0 , f(1)= 4, f(2)= 4, f(3)= 10, f(4)= 16 and g(x) = -f(2x+3). Find any 5 points on g(x).
*June 2, 2015*

**math**

Thats what i thought too! I was just unsure but thank you!
*June 2, 2015*

**math**

144^14/144^2 A.144^16*** B.144^12
*June 2, 2015*

**Math**

a news carrier has $7.00 in change he has 8 more quarters than dimes and five times as many nickels than quarters.how many coins of each type does he have ?
*June 2, 2015*

**CHEMISTRY**

calculate the volume of air required for complete combustion of 1m^3 of gaseous fuel having the combustion:CO=46%,CH4=10%,H2=4%,C2H2=2.0%,N2=1% and the remaining being CO2
*June 2, 2015*

**life orientation**

what are the problems that the community faced? what did the community members do before the protest?
*June 2, 2015*

**life orientation**

describe a recent service delivery protest in your community
*June 2, 2015*

**physics**

Two disks are rotating about the same axis. Disk A has a moment of inertia of 3.6 kg · m2 and an angular velocity of +7.9 rad/s. Disk B is rotating with an angular velocity of -10.6 rad/s. The two disks are then linked together without the aid of any external torques, ...
*June 2, 2015*

**Math**

Which angle measure is closest to 8 radians? A. 100 degs B. 120 degs C. 150 degs D. 360 degs
*June 2, 2015*

**Math**

The point (-4, 6) is on the terminal side of theta in standard position. Which is the cosine of theta? 1. - 2sqrt13/13 2. -2/13 3. 2/13 4. 2sqrt13/13 I think it is one of the negative ones, but I'm not sure of which.
*June 2, 2015*

**Math**

Angela wants to retile the backsplash in the kitchen using 4in. by 4in. tiles. What is the area of each tole in square feet?
*June 1, 2015*

**Civics ASAP PLZ =:)**

thanks!!!!
*June 1, 2015*

**Civics ASAP PLZ =:)**

which of the following would you expect to find in a mixed market economy? large corporations run by the government a king who has unlimited power to regulate production corporations that are not subject to any government regulation a government minimum wage and privately ...
*June 1, 2015*

**Civics ASAP PLZ =:)**

thanks!
*June 1, 2015*

**Civics ASAP PLZ =:)**

Sarah opened a shoe shop in Los Angeles, California to sell the shoes she designs. Which of the following statements is an example of cultural diffusion related to Sarah's business? First-year profits for Sarah's Shoe Shop were 50 percent higher than predicted. Sarah&#...
*June 1, 2015*

**Chemistry **

50cm'3 of sulphur (iv) oxide were produced at s.t.p when some quantity of powdered sulphur were burnt in excess oxygen.state the equation for the reaction Ans S+O2g-2SO2
*June 1, 2015*

**physics**

is electric force between two charges greater than the gravitational force between them ?
*June 1, 2015*

**Math**

For 6 do the same as for 5, divide 4/100,and then multiply the number you got by 750, to get your answer.
*June 1, 2015*

**Math**

For 5, there were 22 females, so you can divide that by 50 (the total number of people), and then multiply the answer you just got by 800, and you will get your final answer.
*June 1, 2015*

**Math**

3 is right 4 which one do you think it is? 5 is wrong 6 which one do you think it is?
*June 1, 2015*

**english**

Select the sentence that is punctuated correctly. Ruby emailed her instructor, a question, and he replied to her immediately. Ruby emailed her instructor a question, and he replied to her immediately. Ruby emailed her instructor a question and he replied to her immediately.
*June 1, 2015*

**Chemistry**

Cock?
*June 1, 2015*

**DISCRETE MATH**

We have a relation R on Z+ defined as follows: mRn if and only if m|n. Determine the set B = {n ∈ Z|52Rn}. Thanks
*June 1, 2015*

**DISCRETE MATH**

We have a relation R on Z+ defined as follows: mRn if and only if m|n. a. Explain why the relation R is not a function. b. Determine the set A = {m ∈ Z|mR52} and give its cardinality |A|. c. Determine the set B = {n ∈ Z|52Rn}. d. Indicate whether A ∩ B = &#...
*May 31, 2015*

**DISCRETE MATH**

Solved. Thanks
*May 31, 2015*

**DISCRETE MATH**

Let Z 5 be the relation of congruence modulo5. If 1 ≤ m, n ≤ 5,we define the product of two classes as [m][n] = [mn]. Explain why [3][4] = [2]. I know 3 x 4 = 12. 5 mod 12 = 2. but i don't know how to explain it. Help with the explanation please. Thanks
*May 31, 2015*

**DISCRETE MATH**

Let Z 5 be the relation of congruence modulo5. If 1 ≤ m, n ≤ 5,we define the product of two classes as [m][n] = [mn]. Explain why [3][4] = [2]. Thanks
*May 31, 2015*

**english**

i know he was ignorant and rude and didn't appreciate christmas.
*May 31, 2015*

**english**

i have a deadline by 8:10 to do this and my power went off and shut down for 3 hours and only read act 1, so pls help me out? @ms.sue
*May 31, 2015*

**english**

Ebenezer Scrooge's character changes between act 1 and 2, describe the change in scrooge's character (not multiple choice)
*May 31, 2015*

**Geography**

Oh thank you !
*May 31, 2015*

**english**

just didn't understand what they were asking and what they meant by "stage directions"
*May 31, 2015*

**english**

stage directions are one element of a drama in a paragraph, define and provide an example of stage directions from "A surprising point of view". then analyze the stage directions. explain how these directions contribution to your understanding of "A surprising ...
*May 31, 2015*

**English**

last thnx @ms.sue :)
*May 31, 2015*

**English**

what purpose for reading do the stage directions suggest to readers? to learn about a subject to be inspired to be entertained to gain understanding i think its the last one, or the first, pls check
*May 31, 2015*

**english**

ms.sue pls help
*May 31, 2015*

**english**

what is the prepositional phrase in the sentence? the family drove to the store. A)the family drove b)drove to the store c)the family d) to the store
*May 31, 2015*

**english**

@ms.sue
*May 31, 2015*

**english**

sorry sorry, preposition*
*May 31, 2015*

**english**

what is the prepositional phrase in this sentence the bird flew directly over our heads. a)flew b)over C)heads d)our is b right??? @ms.sue
*May 31, 2015*

**english ASAP**

no its not... it was the second one.
*May 31, 2015*

**english ASAP**

which excerpt from the play best supports the answer to the previous question? a)"more than eighteen hundred... a tremendous family to provide for!" b)"these children are his? on his meager earning! what foolishness!" c) Do you mean crochet, spirit? do u ...
*May 31, 2015*

**english ASAP**

pls pls pls.
*May 31, 2015*

**english ASAP**

i swear I'm not! but i answered everything else and I'm on this deadline and i didn't even finish up my other subjects and i am suppose to be done by next monday! pls pls pls @ms.sue
*May 31, 2015*

**english ASAP**

and i have this oneeeeee last question and then I'm done
*May 31, 2015*

**english ASAP**

they say its called christmas carol
*May 31, 2015*

**english ASAP**

I'm not sure @ms.sue
*May 31, 2015*

**english ASAP**

in act 2, scene 3 of a christmas carol: scrooge and marley, what is scrooge's first reaction on seeing cratchit's family? asap helpppp a)he thinks crochet has too many children b)he is afraid that tiny tim will not live c)he is touched that cratchit toasts him d)he ...
*May 31, 2015*

**Civics ASAP PLZ =:)**

Fiscal conservatism is the belief that government should not have large debts, and that government programs should not be paid for on borrowed money. How could both Democrats and Republicans be considered fiscally conservative? Republicans - spending money on new programs. ...
*May 31, 2015*

**Civics ASAP PLZ =:)**

thx
*May 31, 2015*

**Civics ASAP PLZ =:)**

What is one advantage the United States has over Canada for maintaining a diversified economy? The U.S. has a greater gold resource The U.S. has a greater labor resource The U.S. has a greater per capita of fresh water The U.S. has a greater land resource***
*May 31, 2015*

**life orientation**

Dont know answer please give it to me
*May 31, 2015*

**nuclear chemistry**

Determine the nuclear binding energy for Pd-101. atomic mass of Pd-101=100.908287 g/mol.
*May 31, 2015*

**precal**

thank you
*May 31, 2015*

**precal**

convert from rectangular coordinates to polar coordinates x=y
*May 31, 2015*

**nuclear chemistry**

determine the nuclear binding energy for Ir-187. Atomic mass of Ir-187=187.958830 g/mol (per nucleon) dE=dmc(^2) mass of proton= 1.00728 amu mass of neutron=1.00866 amu
*May 31, 2015*

**nuclear chemistry**

so how do you solve it again?
*May 31, 2015*

**nuclear chemistry**

how u know to divide by 1.66E-27
*May 31, 2015*

**nuclear chemistry**

the answer is -4.43E-12 J/nucleons
*May 31, 2015*

**nuclear chemistry**

determine the nuclear binding energy for Ir-187. Atomic mass of Ir-187=187.958830 g/mol (per nucleon) dE=dmc(^2) mass of proton= 1.00728 amu mass of neutron=1.00866 amu
*May 31, 2015*

**Econ**

You are the manager of a firm that receives revenues of $40,000 per year from product X and $90,000 per year from product Y. The own price elasticity of demand for product X is -1.5, and the cross-price elasticity of demand between product Y and X is -1.8. How much will your ...
*May 31, 2015*

**Calculus**

A(x) = x^2 + 128/x find A'(x) and A"(x)
*May 31, 2015*

**trignometry(maths)**

if 3tan tita=4,show that( 4cos tita-sin tita/2cos tita+sin tita)=4/5
*May 30, 2015*