Thursday

July 28, 2016
Total # Posts: 553

**Math**

The median weekly earnings for people working in sales is $450. Assume that the weekly earnings are approx. normally distributed with a standard deviation of $90. What is the mean weekly earnings for people working in sales?
*December 10, 2011*

**physics**

An ore car of mass 42000 kg starts from rest and rolls downhill on tracks from a mine. At the end of the tracks, 6.8 m lower vertically, is a horizontally situated spring with constant 3.8 x 10^5 N/m. The acceleration of gravity is 9.8 m/s^2. How much is the spring compressed ...
*December 8, 2011*

**Calculus**

Thank you so much. I had the integral part, but was off on the rest. :)
*December 2, 2011*

**Calculus**

definite Integrals (using fundamental Theorem) Evaluate from -1 to 2(x^2 - 4x)dx
*December 2, 2011*

**Math**

Which probability interpretation is most reasonable to use: relative frequency, subjective, or classical? The probability your company's sales will exceed seven million dollars this year. Is this relative frequency? The probability that the S&P will increase or decrease by...
*November 19, 2011*

**Math**

Thanks!!
*November 19, 2011*

**Math**

That's the question in my textbook. I thought it wasn't possible. So the answer would be 0. Correct?
*November 19, 2011*

**Math**

What is the probability of rolling a two and a five in a single toss of a die?
*November 19, 2011*

**Pre-Calculus**

Thank you Steve. But i'm still a little confused. The answer in my answer list shows minimum as 620 at t=3.?
*November 19, 2011*

**Pre-Calculus**

This is application question. Bacterial Control. If t days after treatment the bacteria count per cubic centimeter in a body of water is given by C(t) = 10t^2 - 120x + 800 0 <= t <= 9 Thn in how many days will the jcount be a minimum? I got this result: 20(t^2 - 6 + 40) ...
*November 19, 2011*

**Pre-Calculus**

Thank you so much. This is a great help. I can see where I started to go wrong.
*November 19, 2011*

**Pre-Calculus**

I'll rewrite the equation. y = f(x) = x^3 -12x + 12 -3 <= x >= 5
*November 19, 2011*

**Pre-Calculus**

I'm having problems solving this and showing the steps: Find the absolute maximum and absolute minimum, if either exists, for y = f(x)= x^3 - 12x + 12 -3 less equal to x greater than equal to 5
*November 19, 2011*

**Pre-Calculus**

Thank you so much for your help. Now that I look at it more closely. I understand what I wasn't seeing!
*November 19, 2011*

**Pre-Calculus**

Need help with the following along with all steps. Find y" for y = 3x + 4/x
*November 19, 2011*

**laguadia**

we are 95% confident that the mean number of weekly hours that u.s. adults use computers at home is between ?
*November 18, 2011*

**chemistry**

Assuming that the total volume does not change after 0.200 g of KCl is added to 1.0 L of a saturated aqueous solution of AgCl, calculate the number of moles of Ag+ ion in the solution after equilibrium has been reestablished. For AgCl, Ksp = 1.8 × 10¯10
*November 16, 2011*

**Eng comp**

thank you, I really like that website
*November 8, 2011*

**Eng comp**

which of the following statements about arguments is true -they always involve a direct conflict -they are always about something that has not yet been decided -they always call for some kind of action on the part of the reader -they try to establish some common ground with ...
*November 8, 2011*

**comp**

To avoid financial hardship during your golden retirement years, it is important not to depend on Social Security benefits. Is this a proper topic sentence, the subject is about Social Security being around in the future or not? Thank you!
*October 13, 2011*

**history **

The Indo-European migration brought many changes to several ancient civilizations. What major civilizations were impacted and what changes did they bring?
*October 9, 2011*

**Chemistry**

132. Aerosol cans carry clear warnings against incineration because of the high pressures that can develop upon heating. Suppose a can contains a residual amount of gas at a pressure of 755 mm Hg and a temperature of 25 °C. What would the pressure be if the can were heated...
*October 5, 2011*

**Physics**

A ball is thrown horizontally from a height of 29 m and hits the ground with a speed that is 4 times its initial speed What is the initial speed
*September 29, 2011*

**chemistry**

What are the major products produced by heating the following isomeric alkyl bromides with NaOEt? Name the products.
*September 26, 2011*

**math**

how many shelves measuring 8 in by 12 in can be made from a 36 in by 56 in plywood?
*September 26, 2011*

**home work help please **

I just wanted to find out if i should make a chart with these question and answer them or write it like as a essay thanks for you help
*September 18, 2011*

**home work help please **

Complete the Multiple Pathways to Learning assessment and the Personality Spectrum assessment. Relate results to your personal study habits. Prepare a 350- to 700-word paper where you answer the following questions: · How may you use the study techniques recommended for...
*September 18, 2011*

**literature **

what is a literary journal and how to start it
*September 7, 2011*

**Psy 202**

1. One of the reasons that certain advertisements are successful is because viewers want to behave like those they observe. What is the general term that psychologists use to describe this type of behavior
*August 27, 2011*

**Am. History**

as always, you have saved the day!! you are awesome. thank you.
*August 20, 2011*

**Am. History**

Immigration was a hot topic during this time period (1820-1850), and it remains a hot topic today. In what ways does immigration continue to shape our nation? can anyone "get the ball rolling" for me. not looking for an answer, just a starting point. maybe some ...
*August 20, 2011*

**Am. History**

i think that i figured it out...Democratic Culture?
*August 12, 2011*

**Am. History**

no ma'am. it is the beginning of a larger question. During the 1820 and 1830 a distinct American culture began to emerge. what philosophies, artists, and artistic works contributed to this cluture? what were the uniquely American themes explored within these works? I just ...
*August 12, 2011*

**Am. History**

During the 1820's and 1830's a distinct American culture began to emerge. what was this called? I think it is American Popular Culture.
*August 12, 2011*

**math**

thank you for explaining how you got to that answer.
*August 5, 2011*

**math**

572 is what percent of 680
*August 5, 2011*

**physics**

The higher the energy level occupied by an electron in the hydrogen atom, the larger the atom. The diameter of the atom is proportional to n2, where n = 1 labels the lowest, or "ground" state, n = 2 is the second state, n = 3 is the third state, and so on. If the ...
*August 4, 2011*

**Am. History**

thank you
*July 29, 2011*

**Am. History**

this is not a homework question but we are studying the Bill of Rights and my question is what, in laymans terms, is the significance of the 9th amendment? i have googled it and read many articles but i still can't get what it means. any information would be appreciated.
*July 29, 2011*

**marketing**

1. You are the marketing manager for HP laptop computers. Identify and briefly discuss the differences between the consumer market for laptops and the business market. Then give an example of each difference using college students as the consumer market and defense-related ...
*July 28, 2011*

**American History**

thank you very much SraJMcGin
*July 26, 2011*

**American History**

the colonials used both peaceful and violent methods to oppose the British policies imposed on America from 1763-1775. what is one violent way and one peaceful way
*July 26, 2011*

**Am. History**

thank you for the links they helped. i wasn't sure about 3 and 4.
*July 23, 2011*

**Am. History**

the question was to place events in chronological order 1. French and Indian War begins 2. New Englanders capture Frech port of Oswega 3. The last French fort falls in New York 4. British capture Montreal 5. Treaty of Paris am i right?
*July 23, 2011*

**early Am. History**

thank you for the links.
*July 23, 2011*

**early Am. History**

the French and Indian war has been called "The War That Made America". Why is this?
*July 23, 2011*

**Law**

thank you
*July 22, 2011*

**Law**

why would the "Fleeing Felon Doctrine" be declared unconstitutional?
*July 22, 2011*

**Am. History**

thank you
*July 14, 2011*

**Am. History**

the English were responsible for all of the following colonies EXCEPT: Rhode Island Maryland Massachusetts New Netherland i think that it is New Netherland just looking for confirmation
*July 14, 2011*

**American History (Ms. Sue)**

thank you at least i am on the right track
*July 12, 2011*

**American History (Ms. Sue)**

would you mind giving the a look and see? The English, French and Spanish all wanted to claim the New World for their county. The English’s intentions were for a colony of genuine settlers who were wanting to live peacefully with the natives. Their intentions were also to...
*July 12, 2011*

**American History**

you are 100% an angel. this helps tons. love the outline. thank you
*July 12, 2011*

**American History**

I will do that. breaking it down might help clear things up. i have it, just having trouble getting in words. thank you.
*July 12, 2011*

**American History**

the spanish, french, and the english all explored america and left a lasting mark on the new world's development. compare and contrast the colonbization methods used by each. be sure to discuss the goals, characteristics, and lasting effects of each power's methods. ...
*July 12, 2011*

**medical billing and coding**

what is the relationship between the claim form and reimbursement
*July 3, 2011*

**Psychology**

• Write a 200- to 300-word response to the following: Identify and explain the scientific process (unsystematic observation, building theories, and evaluating propositions) as applied to personality psychology.
*June 28, 2011*

**Criminology**

some states created internet registeries to publicize name of people convicted of making or selling methamphetamine. (T?F)
*June 21, 2011*

**Chem**

I need to figure out Delta H, Delta S, and Delta G for the following problem. H2+F2 Yeilds 2HF the temperature is at 298K
*June 18, 2011*

**Psychology**

Social anxiety disorder : Also called social phobia, social anxiety disorder involves overwhelming worry and self-consciousness about everyday social situations. The worry often centers on a fear of being judged by others, or behaving in a way that might cause embarrassment ...
*June 18, 2011*

**Chemistry**

Metal with non metal,example would be NaCl would be Sodium Cloride, transition metal/non metal ex. Fe2O3 you have to balance the charge and it would be Iron(III)Oxide. Acids if they have H and no oxygen ex.HCL would be Hydrocloric Acid I hope this helped
*June 17, 2011*

**earth science**

thank you Damon for the help on both questions.
*June 17, 2011*

**earth science**

discuss stellar evolution(briefly describe each stage). what forces are opposing one another throughout the life of a star and how do they influence the various stages in the life cycle of a star?
*June 17, 2011*

**earth science**

how do we calculate or determine the distance to stars? what units do we use and what are the limitations (if any) of the method used for such calculations?
*June 17, 2011*

**math**

CMXCIX
*June 17, 2011*

**Criminology**

America is experiencing a major issue with immigration. What will future criminologists face in studies of crime control based on cultural diversity? How is cultural diversity affecting border patrol and local law enforcement?
*June 17, 2011*

**Criminology**

thank you both. those were both very helpful.
*June 16, 2011*

**Criminology**

What future research directions of crime do you find most interesting, and why? I have done a web search and can't seem to get the ball rolling. Any help would be greatly appreciated.
*June 16, 2011*

**Criminology**

Thank you
*May 31, 2011*

**Criminology**

what implications do psychological theories of criminal behavior have for public policy?
*May 31, 2011*

**critical thinking/205**

how can I apply critical thinking when evaluating conversations, and media sources
*May 15, 2011*

**Math**

Write an equation which models how old in years each of you will be when you are three times as old as the younger person. My age is 30, my son is 6.
*May 14, 2011*

**Chemistry**

what does it mean when we say that concentrated nitric acid has 16 molars
*May 9, 2011*

**math**

Is it reasonable for a 7th grader to use a calculator for math?
*April 28, 2011*

**Grade 11 Math**

A rectangular dog run is to be enclosed by a fence and then divided into two smaller rectangular areas by a fence parallel to one of the sides. If 54m of fence is available, find the dimensions of the dog run of greatest possible area. State the total area
*April 26, 2011*

**physics**

I'm actually doing a project but I don't know how easy it will be to describe it. It involves two weights, both attatched to the same string through the center of a flat surface so one weight is directly on the surface, and the other is dangling below. What the ...
*April 3, 2011*

**Research Design**

I need help describing the similarities and differences between quantitative and qualitative research.
*April 1, 2011*

**chemistry**

calculate the enthalpy of formation, per mole, of sucrose, C12H2211O(s). C12H22O11(s) + 12O2(g) --> 12CO2(g) +11H2O(l) deltaH=-5.65*10^3 kJ
*March 23, 2011*

**chemistry**

calculate the enthalpy of formation, per mole, of sucrose, C12H2211O(s). C12H22O11(s) + 12O2(g) --> 12CO2(g) +11H2O(l) deltaH=-5.65*10^3 kJ
*March 23, 2011*

**math (plz help)**

Ms. Sue has not answered this question where all work must be shown. Plz, Ms. Sue do not answer this one again. Let someone else help me...plz. In a movie theater, Theater A has 30 seats in the first row. Each row has 4 more seats in it than the previous row has. 1) How many ...
*March 14, 2011*

**math (plz help)**

In a movie theater, theater A has 30 seats in the first row. Each next row has 4 more seats in it than the previous row has. 1) How many seats are in the 4th row? 2) Is there a row with exactly 60 seats in it? 3) Theater B has 40 seats in the first row and each row has 4 more ...
*March 14, 2011*

**math**

1) What is 20% of 30? 2) What is 30% of 20? 3) If m and n are any whole number, is m% of n always equal to n% of m? Explain the answer and support it with 2 examples.
*March 14, 2011*

**stats**

if the true proportion of californians who are unemployed is 11%, what is the probability that a sample of 100 californians are unemployed?
*March 14, 2011*

**math**

In a movie theater, theater A has 30 seats in the first row. Each next row has 4 more seats in it than in the previous row has. 1) How many seats are in the 4th row?Explain. 2) Is there a row with exactly 60 seats in it? Explain. 3) Theater B has 40 seats in the first row and ...
*March 10, 2011*

**math**

There are nine equally likely outcomes if you spin this spinner twice (x,y,z) 1) Three of the 9 equally likely outcomes are xx,yy and zz. List the other six outcomes. 2) If you spin the spinner three times, what is the probability of getting yyy? Explain the answer. 3) Give an...
*March 1, 2011*

**math**

The following pattern continues indefinitely: REPEATREPEATREPEAT 1) What is the 38th letter in the pattern? Explain answer. 2) What is the 40th letter in the pattern? Explain answer. 3) What is the 604th letter in the pattern? Explain answer.
*February 23, 2011*

**physics**

three more questions: 1) A 1.50kg projectile is launched at 18.0m/s from level ground. The launch angle is 26 degrees above the horizontal. (Assume negligible friction) a) What is the maximum height reached by this projectile? b) How was will the projectile be travelling when ...
*February 17, 2011*

**physics**

great, thank you so much!
*February 17, 2011*

**physics**

A rock is thrown from a cliff top at 18m/s, 25 degrees above the horizontal. It lands on the beach 4.2 seconds later. a) What is the height of the cliff? b) Hor far from the base of the cliff did the rock land?
*February 17, 2011*

**8th grade science**

Why can high blood viscosity have negative effects? Also, name the medical condition that people can develop with high blood viscosity.
*February 17, 2011*

**math**

The distance between (0,0) and (0,1) on a certain coordinate plane is 1cm. The distance between (0,0)and (1,0) on that same coordinate plane is 1cm. What is the distance between (0,0) and (1,1). Explain the answer
*February 17, 2011*

**math**

the sign reads: receive a $10 gift card for every $50 spent. 1) If your reward is $10, what do you know about the amount of your purchase? 2) Give three possible amounts if your reward is $20. 3) What should you do if your total purchase is $98? Explian answer.
*February 16, 2011*

**math - please help**

In a gift wrapping department, a customer can choose from x different papers, y different ribbons, and z different greeting cards. There are 160 different paper, ribbon, and greeting card combinations. List three of the possible combinations.
*February 3, 2011*

**psychology**

Brain teaser help please! Bedspread Agent and also ii_________ii oo oo
*February 1, 2011*

**psychology**

Brain teaser help please! Bedspread Agent and also ii_________ii oo oo
*February 1, 2011*

**factoring quadratic expression**

w^2+2w+1
*January 26, 2011*

**factoring quadratic expression**

w^2+2w+1
*January 26, 2011*

**math **

I have trouble finding the solution for this: Find the equation of the line through (2,a) and (4,b).
*January 23, 2011*

**biology**

If I was 100% water what would my volume be?
*January 22, 2011*

**chemistry**

If I was 100% water what would my volume be?
*January 22, 2011*