Saturday

February 25, 2017
Total # Posts: 1,234

**Chemistry**

calculate the final concentration if 4.0 L of 1.5 M NaC1 and 2.0 L of 3.0 M NaC1 are mixed.

*February 7, 2009*

**AP CHEM**

How did you get part B?!

*February 7, 2009*

**science**

What kind of materials block sound.

*February 5, 2009*

**Physics - Waves**

0.78352941

*January 26, 2009*

**Physics - Waves**

0.141525

*January 26, 2009*

**Socialogy and cultural diversity**

Are Irish Americans considered a subordinate group in American History? I need to do a paper on a subordinate group and I was thinking of using Irish Americans.

*January 16, 2009*

**Chemistry**

91.7g of HCl solution was added to the calorimeter and brought to a constant temperature. Then 0.5278g of MgO was added and the temp rose from 25.65C to 32.60C and held steady. Then 0.0185g of Mg was added and the temp again rose from 30.35C to 32.20C Calculate the Cp for the ...

*January 14, 2009*

**chem**

If a cube with edges of 1.000 cm weighs 25.68 g, what would the mass of a cube of the same material with sides 2.63 cm in length be?

*January 13, 2009*

**Chemistry**

91.7g of HCL solution was added to the calorimeter and brought to a constant temp. Then 0.5278g of MgO was added and the Temp rose from 25.65C to 32.60C and held steady. Then 0.0185g of Mg was added and the temp again rose from 30.35C to 32.20C. Calculate the Cp for the ...

*January 12, 2009*

**spanish help**

1. soy 2.somos 3.son 4.estoy 5.fue 6.es , era ?? 7.es 8.esta

*January 9, 2009*

**spnaish HELP**

1. Is wrong. Its... Quiero ir a Colorado para Navidad 2. Has comprado algo para la cena ? 3. Este celular es solo para emergencias. 4. Ella siempre viaja en autobús.

*January 9, 2009*

**grammar**

Thanks Ms.Sue and Writeacher...website was a big help. My son now has a better understanding subject/predicate! very happy :)

*January 6, 2009*

**grammar**

what is a predicate? My son's assignment is to circle the action verb and underline the predicate. I've tried to explain what a predicate is, but he still doesn't understand.

*January 6, 2009*

**science**

Appendix

*January 6, 2009*

**home economics**

how does the increase in use of ethanol in the United state impact other place in the world?

*January 4, 2009*

**Calculus**

The curve f(x)=-x^4+2x^2+x has a tangent at the point (1,2). Is this line tangent to the curve at another point and, if so where?

*January 4, 2009*

**math need help with this**

If on the first of January a savings account has a balance of $3200 what amount will be in this account after three years if the bank gives 6% per year interest compounded quarterly?Assume that there are no deposits or withdrawals of money during these three years.

*December 17, 2008*

**algebra with pizzazz**

What is it called when a sea bird lands on a channel marker?

*December 16, 2008*

**math**

A dealer offers a computer software program whose list price is $500 at a 19% discount. She will give an extra 3% discount if paid in cash. What is the selling price if payment is made in cash? If 500=81%, _____=78% (this comes from subtracting 19% from 100%, then subtracting ...

*December 16, 2008*

**math**

need help in 1996, the civilian labor force of the united states included 127 million people, and 5% were unemployed. how many people in the cilvilian labor force were unemployed?

*December 16, 2008*

**math**

the two parallel bases of a trapezoid are 5inches and 6 inches long. the altitude of the trapezoid is 4inches. what is the area of the trapeziod? i got 15

*December 5, 2008*

**science**

~Which type of plate is thicker? continental or oceanic [i know that oceanic plates are denser but that doesn't exactly mean its thicker.] ~Which type of plate, continental or oceanic, is older?? [on this question i have no clue] Thanks for any help! <3

*November 29, 2008*

**chemistry**

THANX I AM IN 5TH GRADE AND THIS WAS 4 A PROJECT

*November 21, 2008*

**chemistry**

I NEED A MODEL OF THE ELEMENTS OF CHLORINE

*November 21, 2008*

**Precalculus with applications**

Determine whether the system of inequalities is infeasible, has alternate optimal solutions, or is unbounded for the function f(x,y)=2x+y

*November 18, 2008*

**english**

what does the word daff remind you off?

*November 16, 2008*

**MATH**

please help execute the indicated multiplications. (x-2)(x^2+2x+4)

*November 14, 2008*

**MATH**

combine like terms is this correct (5x^2+6x+8)+(6x^3 +2x^2-4x) = 6x^3+7x^2+2x+8

*November 14, 2008*

**math**

please help me out here the problem is combining like terms. 4x^3-3x^3+9x+2x I got 1x^3+11x but when i asked a friend they said it would be x^3+11x could u help me out please. also could you tell me if this probem is correct as well (10x^3+6x^2+4x) -(8x^3+2x^2-3x)= 18x^3+4x^2+...

*November 14, 2008*

**US history**

we are supposed to create an advertisement for a revolutionarynewspaper- around the constitutional convention time.. what products do you think they would sell at that time??? thank you!

*November 10, 2008*

**Math**

oh and this is grade nine math

*November 6, 2008*

**Math**

it says the knights banquet hall uses the equation 25n-c+1250=0 determine the cost for a hall rental the legions banguet hall usues the equation 30n+995-c=0 to determine the cost for thier hall rental express each equation in slope y-intercept form- c=mn+b identify the fixeed ...

*November 6, 2008*

**college algebra**

Identify the units on x in each of the following equations. (a) x= yz (both y and z are measured in feet) (b) x=3y^2 (y is measured in inches) (c)x = t^3 (t is measured in seconds) (d) x 4F^2 d (both F and d are measured in meters) 4. In an exponential expression such as A = ...

*November 4, 2008*

**Science- Chemistry**

THANK YOU!

*October 28, 2008*

**Science- Chemistry**

What does NaHco3 + HCl produce?

*October 28, 2008*

**math**

75 150 divided by 2 equals 75

*October 27, 2008*

**10th grade english**

um how do u write an extended metaphor

*October 23, 2008*

**science**

THANK YOU SOOOOOOOO MUCH!

*October 20, 2008*

**science**

Why are there more warm currents than cold currents in oceans?

*October 20, 2008*

**Algebra**

Word Problem: Jack mows the lawn in 4 hours, mary mows the lawn in 5 hours. how long will it take them if they mowed the lawn together? I have a hard time figuring out which formula to use to solve a problem in a word problem can anyone help and tell me how to set up the ...

*October 18, 2008*

**Algebra; check please?**

A television has a diagonal of 10 inches and a width of 8 inches. what is it's height? i think the answer is nine inches, am I correct? If I am not how do I find the answer?

*October 16, 2008*

**Algebra**

Thank you!

*October 16, 2008*

**Algebra**

Can someone help me figure out what formula I am to use for this word problem? I am having a hard time. If the sides of a square are lengthened by 7cm the area of the square becomes 121cm^2. What is the length of a side of the orgional square?

*October 16, 2008*

**Comprehensive Grammar**

i am not good at this i the reason i chose these answers was they sound right. i don't know the reason behind it.

*October 13, 2008*

**Comprehensive Grammar**

these are the answers i just need help on why they are the answers. Subject-verb agreement 1a. Did you know a famous animal-rights activist has criticized horseracing because of the dangers involved? Subject-verb agreement 2b. Peer editing academic papers requires critical-...

*October 13, 2008*

**Comprehensive Grammar**

i know the answers i just need to know why they are right.

*October 13, 2008*

**Comprehensive Grammar**

Read the following sentences, and focus on the grammar area specified in the left column. Then, complete Appendix H by selecting the correct sentence (a or b) for each number and providing an explanation of why you made that choice. Subject-verb agreement 1a. Did you know a ...

*October 13, 2008*

**BEHAVIORAL SCIENCE**

Think about the last time you attended a lecture or were in a classroom. Applying the information processing model, why did some things make it into your short-term memory and some things into your long-term memory? How can knowing this process increase your learning potential...

*October 12, 2008*

**Algebra**

So I should find the vertex?

*October 12, 2008*

**Algebra**

I am supposed to find the ticket sales of a concert using this formula: N(x)= -0.3x^2 + 6x + 15 X represtents the number of days since the concert was first announced. I need to find out when daily ticket sales will peak and how many tickets will be sold on that day. How do i ...

*October 12, 2008*

**math**

876-235= the smaller number.

*October 12, 2008*

**Financial Management**

1. The financial markets allocate capital to corporations by a)reflecting expectations of the market participants in the prices of the corporation's securities. b)requiring higher returns from companies with lower risk than their competitors c)rewarding companies with ...

*October 7, 2008*

**science**

You have a plastic tray with cold water in it and then you have three cups holding it up and one cup has hot water in it. You put dye in the cold water on top of the hot water. Why does the dye move away from the hot water?

*October 7, 2008*

**Financial Management**

1. Total asset turnover indicates the firm's a)liquidity. b)debt position. c)ability to use its assets to generate sales. d)profitability. 2. Some analysts believe that the term structure of interest rates is determined by the behavior of various types of financial ...

*October 6, 2008*

**algebra 1 8th grade**

I cannot solve for x in the following expression, -4 + 2x + 2 = x + 1 + x. Am i missing something?

*October 1, 2008*

**Algebra**

How do you know if a quadratic equation will have one, two, or no solutions? How do you find a quadratic equation if you are only given the solution? Is it possible to have different quadratic equations with the same solution?

*September 30, 2008*

**math**

How do you solve a problem that asks you to find the 500th term? A beach ball has six vertical sections colored white, orange, yellow, blue, red, and green. If you spin the ball so that 500 colors go by and the first color is white, what is the 500th color? How do I go about ...

*September 29, 2008*

**5th grade**

if you are talking about a vowel (a,e,i,o or u), a line over a vowel means the vowel is a long sounding vowel.

*September 29, 2008*

**INTRODUCTION TO BEHAVIORAL SCIENCE**

A psychologist is planning to conduct a study that would examine pathological liars and the quality of their romantic relationships. You have been asked to provide the psychologist with a recommendation for which research method should be used to gather data on the ...

*September 29, 2008*

**Pre-algebra 7th NEED HELP**

This is a question my teacher gave me and there are no parenthesis or whatever you might think it needs. It's 20 divided by 4 minus 5 plus 12. I think the answer is -12, but I'm not sure. PLEASE HELP!!!

*September 23, 2008*

**Pre-Algebra 7th**

What does 20 divided by 4 minus 5 plus 12 equal? I'm trying to understand the order of operation. I think the answer might be -12. Is this correct?

*September 23, 2008*

**English**

Oedipus... What eyewitness to the murder of Laius still exists? Scene 2 P

*September 14, 2008*

**history**

Just google roger williams I found several sites that gave good info.

*September 14, 2008*

**algebra**

oooooooooooh ok thank you.

*September 14, 2008*

**algebra**

What in the world does this mean? To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. a. Write an equation using ...

*September 14, 2008*

**algebra**

Thank you to everyone who responded this helps a lot!

*September 14, 2008*

**algebra**

how do i find the formula for this problem, i can't even find an example of it in my text book. A conservationalist wants to find out how many deer are in a preserve. The conservationalist tags 634 deer then releases them. Later, she comes back and catches 342 deer, but ...

*September 14, 2008*

**algebra**

Thank You!!!

*September 14, 2008*

**algebra**

I am unsure of what formula to use for this problem can anyone help me? Lisa can shovel snow from her driveway in 60 minutes, Jim can do the same job in 55 minutes. How long will it take Lisa and Jim to shovel the driveway if they worked together?

*September 14, 2008*

**Microbiology**

mass # of oxygen-16

*September 10, 2008*

**problem solving, math**

thanks, problem solved!

*September 8, 2008*

**problem solving, math**

If you have a 4 digit number and multiply it by 4, the product will be the number reversed. (abcd x 4= dcba) What is the number?

*September 8, 2008*

**help asap please**

personalities from the point of view of the three theorists, Jung, Freud, and Rogers

*September 8, 2008*

**french**

Non, je ne leur rends pas visite a vacances.

*September 3, 2008*

**physics**

a roller coaster car moves 200 ft horizontally and then rises 135 ft at an angle of 30 degrees above the horizontal. It then travels 135 ft at an angle of 40 degrees downward. what is its displacement from its starting point? im not really sure what to do, I've drawn a ...

*September 2, 2008*

**Algebra, PLEASE HELP ME!!!**

I am so lost, can anyone help me? I don't even understand what the teacher wants out of me with this problem. Suppose that a market research company finds that at a price of p = $20, they would sell x = 42 tiles each month. If they lower the price to p = $10, then more ...

*September 1, 2008*

**Algebra**

How can you determine if a polynomial is the difference of two squares? I think that if the polynomial is x^2-64 that this is a polynomial that is a difference of two squares because if you factor it out you would get (x+8)(x-8). If the 64 in my example were positive would ...

*August 30, 2008*

**algebra**

* means square root *6+2*6

*August 16, 2008*

**algebra 2**

(-5g^5h^6)^2(g^4h^2)^4

*August 16, 2008*

**algebra 2**

so is the right answer -4x^-5*10y^3 ?

*August 16, 2008*

**algebra 2**

-4x^3*2y^-2*5y^5*x^-8 simplify

*August 16, 2008*

**algebra**

is -6 right??

*August 16, 2008*

**algebra**

-(6)^-1

*August 16, 2008*

**Algebra**

I don't understand the equations I am having a lot of trouble.

*August 16, 2008*

**Algebra**

Soybean meal is 12% protein; cornmeal is 6% protein. howmany pounds of each should be mixed together to get a 240 pound mixture that is 8% protein?

*August 16, 2008*

**Algebra**

This is a 3 part question and it is confusing me quite a bit. Please Help! a) A real estate agent trying to sell you a home in a new developement tells you that two floor plans are available. use x for floor plan 1 and y for floor plan 2. in total there are 56 homes available...

*August 12, 2008*

**Life science/ Biology**

Describe how the human population growth issue has and will impact the ecosystem.

*August 8, 2008*

**Algebra**

Describe what the graph of interval [-4,10] looks like. I am trying to check to see if I have done this right. Any help would be wonderful.

*August 8, 2008*

**Critical Thinking**

I just wanted to say thank you to Wendy also I was really having a problem with these Fallacies but you helped me really understand.The notes just confused me more. Thank you really!!!!!!!!

*August 7, 2008*

**Beh**

A psychologist is planning to conduct a study that would examine pathological liars and the quality of their romantic relationships. You have been asked to provide the psychologist with a recommendation for which research method should be used to gather data on the ...

*August 5, 2008*

**Algebra**

I need to graph using the slope and the y intercept this problem and I am not sure how to do it. x+3y=12 Can someone help me?

*July 27, 2008*

**eth125**

What time frame is your class talking about when your question says "in these critical times"? today could be considered a critical time for civil rights and civil liberties, and do these activists need to be American? If not, then what about Nelson Mandela? I am old...

*July 20, 2008*

**eth125**

Have you thought of Rosa Parks? She was not a famous or educated person, just a lady trying to get home, but she sparked a huge movement in the south regarding segregation. She is one of my heroes!

*July 20, 2008*

**Biology/Physiology**

What organs of the human body are involved in the urinary system and what is the specific purpose of those organs? How does the urinary system interact with other systems within the body?

*July 20, 2008*

**psychology**

I have to find a peer-reviewed article which discusses the effects of optimism on physical and psychological health. Any Ideas how to or maybe re-phrasing it for better results

*July 12, 2008*

**Math**

Write 1,386 as a product of it factor A. 2×3×3×7×11 B. 2×3×231 C. 2×3×7×33 D. 2×693

*July 11, 2008*

**Science**

How did Mendel’s approach to answering scientific questions differ from that of his contemporaries? Mendel’s approach to answering scientific questions varied from his contemporaries because he chose to concentrate on only seven characteristics of inheritance. His ...

*July 11, 2008*

**I need help understanding this assignment please.**

Mentoring, observation and interviews are three important strategies in developing student teachers. There is a free online study unit on The Open University's OpenLearn website on this. The unit, which gives a flavour of the Open University's flexible PGCE course, ...

*June 22, 2008*

**science**

Okay so the answer is choice C. Thank you for your help.

*June 10, 2008*

**science**

I think the answer is low power and fine adjustment. That's what I put on the test and I got it wrong. my second choice would be lower power and coarse adjustment, which is choice C. Is my second choice right?

*June 10, 2008*