Thursday

December 18, 2014

December 18, 2014

Total # Posts: 976

**Math**

I have a bag of tiles 0-9. Without looking select a tile, record, return tile, select a second tile. What is the probability that exactly one tile will be a prime number?
*May 5, 2010*

**Chemistry**

a) moles of malachite in 1g: 1g / (221.12g/mol) = .004522 mol (b) moles of CuO produced: .72g / (79.55g/mol) = .009051 mol (c) ratio of moles of CuO produced per moles of malachite decomposed: 2CuO/CuCO3(OH)2 2*79.5/221.1 = 0.719 3. Use the mole ratio of CuO produced per mole ...
*May 3, 2010*

**chemistry**

(a) Mass of an empty Erlenmeyer flask (g): 91.780g (b) Mass of the Erlenmeyer flask with malachite(g): 92.780g (c) Subtract (a) from (b) to obtain the mass of malachite (g): 1g (c) Mass of Erlenmeyer flask with CuO(g): 92.500g (d) Subtract (a) from (c) to obtain the mass of ...
*May 3, 2010*

**chemistry**

3. Use the mole ratio of CuO produced per mole of malachite to write a balanced equation for the malachite decomposition reaction. Assume that CO₂ is also a product of the decomposition. CuCo3*Cu9OH)2 -----> 2Cuo+Co2+H2O 0.004522431 moles of malachite 0.01257071 moles...
*May 3, 2010*

**Geometry**

In Triangle ABC, a=7, b=6, and c=8. find angle B to the nearest degree?
*May 2, 2010*

**human services**

yes
*April 22, 2010*

**human services**

What are ethical dilemmas in medicare, medicaid, family planning, patient privacy, and privatilization?
*April 22, 2010*

**AP Chemistry **

The Ksp is 2.4 x 10^ -5. When I worked through this problem again, I came up with 2.0 x 10 ^-4 for Qsp
*April 21, 2010*

**AP Chemistry **

Thank you... Just to make sure... Since Qsp= 0.005 a precipitate will form.
*April 21, 2010*

**AP Chemistry **

Does precipitation occur when 100. mL of 0.050 M CaCl2 is added to 100. mL of 0.10 M K2SO4? Show calculations to support your response.
*April 21, 2010*

**AP Physics**

If 540 nm light falls on a slit 0.0490 mm wide, what is the full angular width of the central diffraction peak? °
*April 21, 2010*

**AP Physics**

Monochromatic light falls on two very narrow slits 0.050 mm apart. Successive fringes on a screen 4.60 m away are 5.7 cm apart near the center of the pattern. Determine the wavelength and frequency of the light. wavelength nm frequency Hz
*April 21, 2010*

**AP Physics**

Monochromatic light falls on two very narrow slits 0.050 mm apart. Successive fringes on a screen 4.60 m away are 5.7 cm apart near the center of the pattern. Determine the wavelength and frequency of the light. wavelength nm frequency Hz
*April 21, 2010*

**american history**

How did the Woodfrow Wilson's reform platform during the 1912 campaign differ from that of Theodore Roosevelt?
*April 19, 2010*

**Trig **

A. Find simpler, equivalent expressions for the following. Justify your answers. (a) sin(180 + è) (b) cos(180 + è) (c) tan(180 + è) B. Show that there are at least two ways to calculate the angle formed by the vectors [cos 19, sin 19] and [cos 54, sin 54].
*April 17, 2010*

**Trig**

4. Asked to simplify the expression sin(180−è), Rory volunteered the following solution: sin(180−è) = sin 180−sin è, and, because sin 180 is zero, it follows that sin(180−è) is the same as −sin è. Is this answer ...
*April 17, 2010*

**math/computers**

Problem: Solve X mod Y for all positive integers. Do so without using multiplication or division.
*April 16, 2010*

**geometry**

5. The lengths of segments PQ and PR are 8 inches and 5 inches, respectively, and they make a 60-degree angle at P. (a) Find the area of triangle PQR. (b) Find the length of the projection of segment PQ onto segment PR. (c) Find the length of segment QR. (d) Find the sizes of ...
*April 15, 2010*

**Math**

Tim put red, white and blue marbles in a bag. One-third are red, one-fourth are are white and ten are blue. how many of each are in the bag and what color are they?
*April 14, 2010*

**human services**

what is ethical advisory boards?
*April 13, 2010*

**vector**

If two vectors u and v fit the equation (u − v) • (u − v) = u•u+v•v, how must these vectors u and v be related? What familiar theorem does this equation represent?
*April 13, 2010*

**geometry**

The lengths of segments PQ and PR are 8 inches and 5 inches, respectively, and they make a 60-degree angle at P. (a) Find the area of triangle PQR. (b) Find the length of the projection of segment PQ onto segment PR. (c) Find the length of segment QR.
*April 12, 2010*

**vectors**

If two vectors u and v fit the equation (u − v) • (u − v) = u•u+v•v, how must these vectors u and v be related? What familiar theorem does this equation represent?
*April 12, 2010*

**math**

A little, but confusing sometimes.
*April 12, 2010*

**math**

What is the length of the vector [5 cos theta, 5 sin theta]? If the vector [5,0] is rotated 36 degrees in the counter clockwise direction, what are the components of the resulting vector?
*April 12, 2010*

**Trig**

Find all solutions w between 0 and 360, inclusive: (a) cosw = cos(−340) (b) cosw = sin 20 (c) sinw = cos(−10) (d) sin w < − 1/2 (e) 1 < tanw
*April 12, 2010*

**math**

What is the length of the vector [5 cos è, 5 sinè]? If the vector [5,0] is rotated 36 degrees in the counter clockwise direction, what are the components of the resulting vector?
*April 12, 2010*

**math**

Thanks
*April 12, 2010*

**math/trig**

What graph is traced by the equation (x, y) = (5sin 12t , 6−5 cos 12t)?Think of another equation that will produce the same graph. Use your calculator to check.
*April 11, 2010*

**math**

Solvefor y: x2 = a2 + b2 − 2aby
*April 11, 2010*

**geometry**

A segment that is a units long makes a C-degree angle with a segment that is b units long. In terms of a, b, and C, find the third side of the triangle defined by this SAS description. You have done numerical versions of this question. Start by finding the length of the ...
*April 11, 2010*

**math/geometry**

Jamie rides a Ferris wheel for five minutes. The diameter of the wheel is 10 meters,and its center is 6 meters above the ground. Each revolution of the wheel takes 30 seconds. Being more than 9 meters above the ground causes Jamie to suffer an anxiety attack. For how many ...
*April 11, 2010*

**science 7**

1o plant based products used weekly. Classify them into plant for food and plant for fiber
*April 11, 2010*

**grammar**

Which one do you think it is first?
*April 9, 2010*

**human services**

What is the difference between primary, secondary, and tertiary preventio? I am workiong on three scenario's in hsm/210?
*March 31, 2010*

**English**

Yes, for everything is action.
*March 28, 2010*

**social studies**

what are detors called when they work to pay off there det?
*March 24, 2010*

**bis/219**

Discuss how all three of the book stores address ethical, legal and security issues
*March 23, 2010*

**Math (trig)**

In ABC, sin A equals 2/3 , sin B equals 4/5 , and side a equals 20 Find side b?
*March 21, 2010*

**English**

is the following sentence biased? Our new district attorney, a Cuban American, is making a speech on Saturday.
*March 17, 2010*

**algebra**

1. You have recently found a location for your bakery and have begun implementing the first phases of your business plan. Your budget consists of an $80,000 loan from your family and a $38,250 small business loan. These loans must be repaid in full within 10 years. a. What ...
*March 16, 2010*

**communications**

What are personal conflict management styles
*March 16, 2010*

**history**

why did people think they could be free from suffering through buddhist teachings?
*March 14, 2010*

**Math**

Find P(5,2).
*March 10, 2010*

**math**

A set of data is normally distributed with a mean of 16 and a standard deviation of 0.03. What percent of the data is between 15.2 and 16?
*March 10, 2010*

**human resource**

Is there anyone familiar with course 230/Ethical Issues in Human Services???
*March 4, 2010*

**human services**

Which do you think ahs the greatest power to solve or prevent the delimmnas?
*March 4, 2010*

**human services**

I scored an A
*March 4, 2010*

**human services**

I am totally lost!!!
*March 4, 2010*

**human services**

Am I on the right track---Human services organizations are in the line of business. The deilemmas ar this affects the culture od the society, leaders are reaponsible for progress oth oragnization , and people are directed by sources that are mandated through the mission of the...
*March 4, 2010*

**human services**

How does the unique realtionship between human service oragnizations and the populations they serve impact ethical decisions? what are some dilemmas that occur in human service organizations? which do you thind has the greatest power to solve or prevent these dilemmas;...
*March 4, 2010*

**childcare**

the formation of childrens core values is most strongly influenced by?
*March 3, 2010*

**Human Services**

In the code of the Community Service Code why is theinstructuin is necessaary? what does it tell you about the relationship between law and ethics?
*February 27, 2010*

**macroeconomics**

Suppose in 2009 the united states congress passes a minimum wage law that increases the minimum wage (the lowest legal wage) to 7.25 per hour and has a provision that increases the minimum wage at the beginning of each year based on the CPI for the previous year. a.) If the ...
*February 27, 2010*

**macroeconomics**

In 1995, the CPI was 152.5 and the price of an economics textbook was 70.00 dollars and a music cd was 16.00 dollars. If the CPI was 172.3 in 2007, what were the prices of the economics textbook and the music cd in 2007 dollars
*February 27, 2010*

**college**

What is the difference between values and factors in human service organization
*February 26, 2010*

**social studies**

can you please compare and contrast ; direct democracy and representative democracy?
*February 19, 2010*

**physics**

The magnitude of the vectors F is 20 N, the force on the right is applied at an angle 55◦ and the the mass of the block is 75 kg. If the surface is frictionless, what is the magnitude of the resulting acceleration? Answer in units of m/s2.
*February 12, 2010*

**6 math**

Ricky had 2/3 gallon of fruit punch left over from his party. He gave Jason 1/4 gallon the next day. What fraction of a gallon of fruit punch does Riky have left?
*February 8, 2010*

**College Physics**

A current exists in a wire that gradually narrows down to a smaller diameter. How do the drift velocity, the current density, and the electric field vary along the wire? Can you please help explain this?
*February 4, 2010*

**math (calc 2)**

x+y=3 x-4=-(y-l)^2 rotate about the x-axis
*February 1, 2010*

**physics**

A man can throw a ball a maximum horizontal distance of 149 m. The acceleration of gravity is 9.8 m/s2 . How far can he throw the same ball verti- cally upward with the same initial speed? Answer in units of m.
*January 28, 2010*

**health**

Things that are happening in the world today that can cataclysmically affect public health
*January 27, 2010*

**algebra**

calculated area of a room is 174.2 square feet and the actual area is 149.6 the question was 'What is the relative error of the area to the nearest ten-thousand?' Im confused about what is relative error and how can i get that?
*January 22, 2010*

**Math**

How do you solve this problem? 3/4(11/12-7/8)+5/16
*January 21, 2010*

**Math**

How do you solve this? I have tryed so many times and can not get the right answer. (1.65-1.05)^2/0.4+0.8 The answer is suppose to be 1.7 but everytime I do the problem i don't get anything near that answer. Help would be greatly appreciated.
*January 21, 2010*

**Algebra**

Hello, need help in finding the slope for this question(0,-9) and (-4,0) thanks sally
*January 20, 2010*

**world history**

How did the Reformation in England effect the colonization of the New World?
*January 16, 2010*

**physics**

What vector represents the displacement of a person who walks 15 km at 45 degrees south of east, then 30 km due west?
*January 11, 2010*

**AP Statistics**

A. .0251 B. .0020 C. None
*January 3, 2010*

**Math**

The class average on a math quiz was 74 and the standard deviation was 6.8. Find the z-score for a test score of 82.
*December 12, 2009*

**math**

f(x)=xsquared+10 and g(x)= square root of x-1 and i have to figure out g(f(-3) i just dont know how to do it because i thought you could not have a negitive under a radical?
*December 3, 2009*

**art**

i need a photo of an animal, I can't think of any animal, please send some pictures!
*December 2, 2009*

**English**

In the book To Kill A Mocking Bird why does Mayella also represent a mocking bird. Who in todays society can be looked upon as a mocking bird?
*December 1, 2009*

**math**

because if you think about it if you double 3 that is 6 and if you take half of 8 that is 4 and your answer to 24 divided by 6 is 4 im not sure if this helps but thats all i got=]
*December 1, 2009*

**Ap world history**

well i started writing a thesis statement but im not sure if it is correct? i wrote: During the classical period Han and Roman attitudes towards technology were self glorifying, however, the Han had a more unified and was more to the common people, where, Rome had an ...
*December 1, 2009*

**Ap world history**

How do i write a thesis statement for analyze the Han and Roman attitudes towards technology? Or can i get one to use?
*December 1, 2009*

**math**

the mean is an average of the data and do you mean the median? not medium?
*December 1, 2009*

**communications**

Does anybody know what an eletronic version of a print ad is? I have an idea, but I am not sure if I am correct
*November 21, 2009*

**analogies**

ring is to sting as brick is to waht?
*November 19, 2009*

**french**

ms.sue please help
*November 18, 2009*

**french**

Dont copié formé thé book oh ya dont copié formé thé book cause you Oiil inde up being triste soi remembré not toi copié frome thé book oh ya! translation in english please!
*November 18, 2009*

**Ms.Sue**

Thank you very much.
*November 14, 2009*

**communication**

I just need to find out, were can I find any info on how doe the media influence or affect children. I need the history and the controversy and identify the major conflicting points of view
*November 14, 2009*

**communications**

I am looking for any article to help me with that question.
*November 14, 2009*

**communications**

Next, you will explain the nature and history of the controversy and identify the major conflicting points of view in the discussion on how Does media influence or effect children. I am having trouble finding what I need.
*November 14, 2009*

**science**

what is the connection between native americans and federal government
*November 6, 2009*

**Medical Transcription**

What is the main difference between a stem cell and a cancer cell?
*November 6, 2009*

**5th Grade Math**

Oh by the way they start at the same time..
*November 5, 2009*

**5th Grade Math**

The chapter was about finding the LCM which in this case is 40. But I thought since the first time around it takes him 8 minutes, then the 2nd time would be 16 minutes. It would take him 5 trips to equal 40 and Isaiah 4 trips. But Nick's time is still beter than Isaiah.
*November 5, 2009*

**5th Grade Math**

Nick and Isaiah both run a mile. Nick runs in 8 minutes and Isaiah runs it in 10 minutes. How long would it take Nick to run pass Isaiah for a second time. I think the answer is 16 mintues. The LCM =40
*November 5, 2009*

**Physics Help!**

Thank you so much guys!!!
*November 5, 2009*

**Physics Help!**

Sorry I've tried 3 different ways to answer this and all have been wrong, please help me out! The moment of inertia of a 1.1 kg bicycle wheel rotating about its center is 0.15 kg*m^2 What is the radius of this wheel, assuming the weight of the spokes can be ignored?
*November 5, 2009*

**Earth Scince**

Can crude oil burn in the Earth if it comes in contact with magma?
*October 19, 2009*

**math**

how do i label histogram showing number of years leading NFL passers played in NFL
*October 15, 2009*

**Us History**

The americans claimed to fight for liberty and freedom. how did these ideals make women and enslaved africans question their positions in society?
*October 14, 2009*

**Algebra 1**

I already knew to do that i need you to write an INEQUALITY
*October 14, 2009*

**Algebra 1**

Write and solve an inequality. SOLVING MULTI- STEP INEQUALITIES On a trip from Virginia to Florida, the Sampson family wants to travel at least 420 miles in 8 hours of driving. What must be their average rate of speed?
*October 14, 2009*

**math**

why and what graph would i use for number of points darren scored for his basketball team each year he played
*October 13, 2009*

**math**

why would i use a bar graph to show the miles of coastline of westernmost california coasts
*October 13, 2009*

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