Thursday

January 19, 2017
Total # Posts: 2,571

**chemistry lab**

A volume of water delivered using a buret has a mass of 2.67 g. What was the final volume reading on the buret if the inital volume reading was 0.10 ml? [assume the density of water is 1.00g/mL]ml

*February 19, 2013*

**Math**

These are the two points that I have. I'm trying to figure out a third one but its hard for me. (-8,8) (4,-5)

*February 18, 2013*

**Math**

graph the line 3x-4y=-8 Could you show how you got the answer so I can work it out also

*February 18, 2013*

**math**

I understand the values for x but I don't understand how do you get the value for y. Could you show me the work so I can know for myself how to do it

*February 18, 2013*

**math**

graph the line 3x-4y=-8

*February 18, 2013*

**chemistry**

Preceed the equation of CuSO4 + Fe

*February 18, 2013*

**Biology**

How is the anaerobic energy system not entirely anaerobic?

*February 17, 2013*

**Physics**

A 100kg steel beam falls from rest from a height of 20m, Find its impact speed.

*February 16, 2013*

**Chemistry**

I am doing a lab on enthaply of vaporization of water, I got everything else on the post lab but these two questions, please help. The deltaHvap data from the handbook reference vary with temp. 1) if your data were perfect, but deltaHvap is not constant, how would this show up...

*February 13, 2013*

**Statistics**

how to round 0.2055 to 3 decimals

*February 13, 2013*

**math**

A fifth grade class collected data about class spending per month on various items. Below are some of the results. A median amount of $6 per month was spent for books and magazine. A median amount of $10 per month was spent for tapes and CDs. A median amount of $8 per month ...

*February 12, 2013*

**math**

Write 0.026 As a sum using powers of 10 to show place value

*February 11, 2013*

**science**

p=mv M1V1=M2V2 (64kg)(3.2m/s)=(96+64)(V2) (64kg)(3.2m/s)/160kg=V2 1.28m/s= V2

*February 9, 2013*

**algebra**

how do i solve y=2x-10 2y=x-8

*February 9, 2013*

**Oceanography**

why on the world average. Earth’s. atmosphere is in motion. Take into consideration the distribution of earth’s surface area with latitude and the variation in heat loss and heat gain with latitude.

*February 9, 2013*

**Oceanography**

How do hurricanes produce storm sures? Why is a storm surge more severe along a coast with a side, shallow continental shelf than along a coast with a narrow continental shelf?

*February 9, 2013*

**Oceanography**

why the northeast and southeast trade winds are steady in strength and direction year round but the Northern Hemisphere westerlies alternate from northwest to southwest with summer and winter along the west coast of the United States.

*February 9, 2013*

**chemistry**

The charge and identity of an ion with 16 protons, 18 electrons and 17 neutrons would be?

*February 6, 2013*

**Urgent need help on chem please someone**

A researcher explores the ideal gas equation. He measures the pressure of a system at different temperatures ( keeping the volume and moles of the gas constant) and creates a plot of P versus T. What is the slope of the line that results if the volume is 1.0L when 1.0 mol of ...

*January 31, 2013*

**Chem**

A researcher explores the ideal gas equation. He measures the pressure of a system at different temperatures ( keeping the volume and moles of the gas constant) and creates a plot of P versus T. What is the slope of the line that results if the volume is 1.0L when 1.0 mol of ...

*January 31, 2013*

**Math**

Thank you Ms. Sue!!!

*January 31, 2013*

**Math**

7/12 + 7/12 please explain how to do this problem.

*January 31, 2013*

**Phyiics**

Can u just explain how to do projectile motion and give examples of hroiontal velocityand displacement , verical velocity and displacement

*January 30, 2013*

**math**

Eight friends share three pizzas. How much pizza will each friend get? Explain your thinking words, numbers and models.

*January 30, 2013*

**business math**

you deposit $1000 for 4 years at an interest rate of 2% if the interest is compounded quarterly how much would you have at the end of the fours years

*January 30, 2013*

**HUman Resources**

1. Unions did you find that you already had a basic understanding of Unions or was the information somewhat foreign to you? 2. What do you think you will be most interested to learn more about, regarding Unions, and why? 3. Answer question 5 on page 58 (end of Chapter 2 ...

*January 28, 2013*

**Human Resources**

Do the predictors of union participation suggest that union leaders will likely be involved in an adversarial relationship with management? Please use reference material.

*January 28, 2013*

**Human Resources**

In anyway you can.

*January 28, 2013*

**Human Resources**

Discuss the pros and cons of pay for performance systems and if you agree or disagree with the system and why. Give examples of organizations or professions that employ this type of pay system.

*January 28, 2013*

**human resources**

Discuss the pay and compensation you receive at your most recent place of employment and what aspects of compensation are most important to you? How important is direct pay and bonuses?

*January 28, 2013*

**History**

What are the 10 MOST special events occurred during the 1980’s involving our government? I know I already posted this question. Also the american best history site does not work so please don't give it to me.

*January 27, 2013*

**History**

This happened at my school too. when i tryed to go the website on Friday

*January 27, 2013*

**History**

the link on the site shows: Bandwidth Limit Exceeded The server is temporarily unable to service your request due to the site owner reaching his/her bandwidth limit. Please try again later. AAnd i need to write a paragraph on it tommorow

*January 27, 2013*

**History**

What are the 10 MOST special events occurred during the 1980’s involving our government?

*January 27, 2013*

**algebra**

Solve using the substitution method. State if there are infinite solutions or no solution. 5x + 8y = -4 x= 2 - 3y

*January 27, 2013*

**History**

Thank You Soooooooooooooooooo Much!

*January 25, 2013*

**History**

What special events occurred during the 1980’s involving our government?

*January 25, 2013*

**Chemistry**

The mass of a single barium atom is 2.28E-22 grams. How many barium atoms would there be in 182 milligrams of barium?

*January 23, 2013*

**Physics**

Because it does Learn to accept that!

*January 21, 2013*

**Pol 201 American National Goverment**

The most notable philosophies influencing America’s founding were

*January 20, 2013*

**Algebra with applications**

A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results were as follows: 29 said they drove alone. 36 rode in a carpool. 36 rode public transportation. 6 used both carpools and public transportation. 4 used both a carpool and ...

*January 16, 2013*

**MATH PROBLEM**

-One revolution of the Sun by the Earth requires 365 days, 5 hours, 48 minutes and 49.7 seconds. the 5 hours, 48 minutes and 49.7 second is approximated to 1/4 of a day. Every 4th year, one full day is added( leap year). How much of an error in minutes and seconds does this ...

*January 16, 2013*

**9TH GRADE MATH**

IF C=2M+D THEN M=

*January 15, 2013*

**Math**

Tom planted 81 plants in his garden at a total cost of $21.85. The 81 plants consisted of peppers at 20 cents each tomatoes at 35 cents each and eggplants at 30 cents each. If the total number of peppers and tomatoes was only half the number of eggplants, then how many of each...

*January 13, 2013*

**math**

The ratio of the length of haley's stick to the length of sarah's stick is 1 : 9. Sarah's stick measures 72 inches. how long is haley's stick?

*January 10, 2013*

**Chemistry**

thank you for the help

*January 9, 2013*

**Chemistry**

I have the same question as anonymous person before me so I just copy the question from that person, here is the question please help the two of us! if you have a mixture of sodium chloride and sodium bromide, could you use its conductance to determine the concentration of ...

*January 9, 2013*

**Chemistry**

thank you so much! this make more sense than what my friend try to explain to me!

*January 9, 2013*

**Chemistry**

please help sodium sulfate is soluble in water. How do you expect its conducatance to compare to sodium acetate at the same concentration? explain

*January 9, 2013*

**trig**

how to graph thr trig function f(x)3x-180)+2 and the parent function?

*January 7, 2013*

**Math**

The product of two number is between 40 and 50. One number is 4 time less than the other

*January 4, 2013*

**heelth: HCA 415**

Look over the definitions of public health in this week’s reading and describe its main features. In your opinion, what two features have had the greatest impact on improving health status and quality of life throughout history? Explain why you selected these features and...

*December 30, 2012*

**math**

1. 6 costumes 2. He doesn't use all of any of them Because you do 1.5*6=9 and you can't have another 1.5 and then you just times everything by 6 and you see that they all work

*December 26, 2012*

**Math**

a textbook page measures 6 inches by 9 inches. there is a margin of uniform width around all four sides of the page leaving 28 square inches for printing. find the width and height of the printing area

*December 25, 2012*

**MATH**

LIST A SET OF 12 NUMBERS THAT HAS THE FOLLOWING: MODE 29, MEDIAN 30, MINIMUM 28 AND MAXIMUM 34.

*December 19, 2012*

**math**

how do you find the zeros of a function?

*December 18, 2012*

**reading**

You know that the " home on the range" is " where the deer and the antelope play." However, on animal in north america fits the true classification of antelope. What does classification means A. Friendliness B. Kind of music C. Particular group D. ...

*December 17, 2012*

**american history**

in 1700 which of the following colonies had the largest slave population relative to its overall population

*December 16, 2012*

**WORLD HISTORY**

does anybody have penn foster answer to the age of discovery to the american experiment

*December 15, 2012*

**math**

In each set of shapes there is one shape that does not belong tell why

*December 10, 2012*

**english**

does this sound write and look grammatically correct? Please and thank you(nohbdy is suppose to be spelled that way) Odysseus was brave from the rest of the crew so he led us into fooling Cyclops. He gave some wine to Cyclops to get him drunk. Then Odysseus, me, and a couple ...

*December 9, 2012*

**english**

thanks

*December 9, 2012*

**english**

does this sound write and look grammatically correct? Please and thank you Odysseus the Curious took us inside a cave to eat. After we ate some cheeses the ugly Cyclops came along with his flock of sheep and rams. He put a gigantic boulder to block the exit of the cave. The ...

*December 9, 2012*

**english**

thanks a ton

*December 9, 2012*

**english**

does this sound right with grammatical errors too Odysseus sent three men to see what the land of the Lotus Eaters, who live on the flower, is about. The three men had gotten fed the Lotus and now they had no desire to go back to the ship or go back home. That is why Odysseus ...

*December 9, 2012*

**english**

Thanks so should i write: The ruined city of Troy was a catastrophic place. There was blood everywhere. Men’s bodies were cut open and infants were crying. The whole city looked on as Poseidon, the god of earthquakes, gave Troy the most disastrous earthquake ever.

*December 9, 2012*

**english**

does this sound and look grammatically correct? The ruined city of Troy looked to be a catastrophic place. There was blood everywhere. Men’s bodies were cut open and infants were crying. The whole city looked as Poseidon, the god of earthquakes, gave Troy the most ...

*December 9, 2012*

**math**

A customer needs 88, 2-inch pipe connectors to complete a project. How many bags of connectors would you recommend the customer purchase if each bag includes 25 connectors? 2 4 25 88 100 176

*December 7, 2012*

**hr**

I tend to stay with my original opinion even after a discussion with others.

*December 7, 2012*

**math perimeter**

susans garden fence goes around the entire garden.the fence is a quadrilateral.all of the sides are equal in lenth.one side measures 15 cm. what is the perimeter of the garden

*December 6, 2012*

**art**

How does the Holy Trinity by Masaccio express the humanist ideals of the15th century Renaissance? Include examples from two other artists from the same era who express the same humanist ideals. Use one example from Gardner’s Art through the Ages and one from the Internet.

*December 6, 2012*

**Linear Programming - Math**

A small software company publishes computer games and educational and utility software. Their business strategy is to market a total of 36 new programs each year, at least four of these being games. The number of utility programs published is never more than twice the number ...

*December 6, 2012*

**math**

How many inches are in a yard? That number divided by two because radius is diameter divided by 2 r = d/2

*December 4, 2012*

**Math (trigonometric identities)**

I was given 21 questions for homework and I can't get the last few no matter how hard and how many times I try. 17. Sinx-1/sinx+1 = -cos^2x/(sinx+1)^2 18. Sin^4x + 2sin^2xcos^2x + cos^4x = 1 19. 4/cos^2x - 5 = 4tan^2x - 1 20. Cosx - sinx - cos^3x/Cosx = sin^2 - tanx 21. ...

*December 4, 2012*

**Math**

A car dealer will sell you the $16,650 car of your dreams for $3,290 down and payments of $331.97 per month for 48 months. What is the APR? (Round your answer to the nearest tenth of a percent.)

*December 4, 2012*

**V/CV OR VC/V PATTERN**

Student

*December 3, 2012*

**Chemistry**

A 1.20g sample of benzoic acid is burned in excess of )2 in a bomb calorimeter immersed in 1300 g of water. The temperature of the water rises from 25 to 30.2 degrees C. The heat of combustion of benzoic acid is -26.4 kJ/g. The heat capacity of water is 4.18. What is the heat ...

*December 3, 2012*

**math**

The area of a table top can be represented by l× w where l is the length and w is the width.What is the area of the table top if l=60 in and w=40 in?

*December 1, 2012*

**7 grade math**

a helicopter blade spend 775 times in 3 mintues find the rate in revolutions per second

*November 27, 2012*

**English**

Identify the italicized phrase in the following sentence.For some reason,Vince didn't like falling in the mud puddle.

*November 26, 2012*

**Chemistry**

If the initial volume is 500. ml at a temperature of 30 C, at a constant pressure, what would the new volume be if the temperature was changed to 50 C?

*November 23, 2012*

**physics**

A snapshot graph of a travelling wave is shown. The wave is travelling to the right at 10.4m/s. What is the amplitude if the maximum displacement is 26.6cm and the total distance travelled by the wave is 18.4m?

*November 20, 2012*

**math**

P=$1000 r=7% t=8 compounded annually

*November 17, 2012*

**social studies**

according to the preamble of the constitution, give at least three reasons why the new constitution is being established?

*November 17, 2012*

**probability**

probability of choosing a red marble is 1/5 also white marble is 3/10 what is the blue marble probability?

*November 15, 2012*

**Chemistry**

If 32.6 g of aluminum is produced, how many moles of aluminum nitrate is reacted?

*November 13, 2012*

**Math**

How can you tell by looking at the coordinates of a point whether the point is on the x axis or the y axis?

*November 11, 2012*

**Math**

thanks for the help

*November 11, 2012*

**Math**

Don't understand the problem can somebody please help me The bottom of the rabbit cage is a rectangle with a perimeter of 118 inches. Let x be the cages width(in inches) and let y be its length (in inches). write an equation for the perimeter the find the intercepts

*November 11, 2012*

**reading**

son needs to use the word idioms in a sentence

*November 8, 2012*

**Chemistry**

Consider the reaction 2H2O(g) --> 2H2(g) + O2(g) deltaH = +483.6 kJ/mol at a certain temperature. If the increase in volume is 32.7 L against an external pressure of 1.00 atm, calculate deltaU for the reaction. (1 L * atm = 101.3 J)

*November 8, 2012*

**algebra**

The dimensions of a playground are 50 feet by 75 feet. You want to double its area by adding the same distance x to the length and width. Find x and the new dimensions of the playground.

*November 2, 2012*

**ENGLISH II HELP PLEASE!!**

pure,fresh real apple juice , packaged to deliver the freshnessof nature straight to you

*October 30, 2012*

**history**

What is a fertile crescent

*October 29, 2012*

**math**

How many equal line segments are needed to make a line of 30 triangles

*October 29, 2012*

**statistics**

determine whether the following formula is a probability distribution P(X)=X/20 for X=1,4,7 AND P(X)=X+0.1 for X=0.24,0.26,0.15

*October 27, 2012*

**statistics**

A lottery offers one $800 prize, one $400 prize, and ten $80 prizes. One thousand tickets are sold at $3 each. Find the expectation if a person buts two tickets. Assume that each ticket can win more than one prize.

*October 26, 2012*

**Please help with math!!**

thanks

*October 23, 2012*

**soicial studys help plz**

the one above me is correct thanks

*October 22, 2012*