Most popular questions and responses by Joanne
  1. algebra

    The volleyball team at West View High School is comparing T-shirt companies where they can purchase their practice shirts. The two companies, Shirt Box and Just Tees, are represented by this system of equations where x is the number of T-shirts and y is

    asked on May 23, 2016
  2. Math

    Expressed to the correct number of significant figures, the sum of two masses is 445.2 grams. WHich two masses produce this answer? 1) 210.10 g+235.100g 2)210.100 g + 235.10 g 3) 210.1 g + 235.1 g 4) 210.10 g+ 235.10 g I think the answer is 2 but I don't

    asked on November 6, 2008
  3. Language Arts

    The seashells were iridescent in the sunlight. a. cloudy b. drying out c. breaking into pieces d. shimmering with colors I choose "d" Am I right?

    asked on September 5, 2017
  4. english

    Learning is to sail challenging and exhilarating it is also not the easiest thing to do. is this sentence a dangler sentence.

    asked on February 22, 2015
  5. Microeconomics

    Mrs.Simpson buys loaves of bread and quarts of milk each week at prices of $1 and 80 cents, respectively. At present she is buying these products in amounts such that the marginal utilites from the last units purchased of the two products are 80 and 70

    asked on March 23, 2011
  6. Chemistry

    Balance the equation in aqueous basic solution: As2S3(s) + H2O2(aq) → AsO43-(aq) + SO42-(aq) I normally understand how to balance redox equations, but this one confuses me because I would normally think that the As2S3 is being reduced to AsO4^3-, but

    asked on June 5, 2011
  7. Chemistry

    If a reaction yields 2.5165 × 10^8 kJ, then how much mass was lost? (User 3.00 x 108 m/s as the speed of light) 2.30 × 10^-3 kg 5.60 × 10^-3 kg 2.80 × 10^-12 kg 5.60 × 10^-12 kg Please help.

    asked on May 16, 2012
  8. Chem.

    An aspirin tablet weighing 0.400 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolved the tablet in hot NaOH and the cooled solution was diluted with DI water to the mark in a 250 mL volumetric flask. Exactly 3.00 mL of

    asked on April 18, 2009
  9. History-Civil War

    Thank You anyway for your help !

    asked on June 18, 2011
  10. chemistry

    calculate the velocities of electrons with de Broglie wavelengths of 1.0x10^2nm and 1.0nm

    asked on September 23, 2010
  11. earth

    The radius of the sun is 695 500 km What is its approximate volume written in Scientific notation?

    asked on July 23, 2013
  12. statistic

    Two samples each of size 25 are taken from independent populations assumed to be normally distributed with equal variances. The first sample has a mean of 35.5 and standard deviation of 3.0 while the second sample has a mean of 33.0 and standard deviation

    asked on March 17, 2015
  13. Physics

    Really need help with this asap plz~ there is a 4kg wooden block on top of a wooden ramp forming an angle of 37 degrees above surface.The block is placed 1.2 m up on the ramp and the ramp is connected to another wooden flat board.So when the block slides

    asked on December 8, 2013
  14. statistics

    SAT scores are normally distributed. The SAT in English has a mean score of 500 and a standard deviation of 100. a. Find the probability that a randomly selected student's score on the English part of the SAT is between 400 and 675. b. What is the minimum

    asked on August 4, 2008
  15. English

    Anne Bradstreet's "The Author to Her Book" I have to explain the irony in the poem. I thought irony would be like a firehouse burning to the ground. I don't see any irony in the poem what am I missing?

    asked on July 23, 2008
  16. math

    What are three different ratios for 5 circles and 4 squares?

    asked on April 28, 2010
  17. Statistics

    In a study of pleas and prison sentences, it is found that 40% of the subjects studied were sent to prison. Among those sent to prison, 20% chose to plead guilty. Among those not sent to prison, 10% chose to plead guilty. 3.3.a (0.5 pt) If a study subject

    asked on February 6, 2015
  18. social studies

    How did the Emancipation Proclamation change the nature of the Civil War, if it did at when he issued it ?

    asked on June 9, 2011
  19. chem

    The pressure 15.0 meters under water is 248 kPa. what is this pressure in bar? (how would you set this up) what is the pressure in torr? I believe the second one is set up like this: 248 kpa * (760 torr/ 101.325 kpa)= 1860.15.. Although, if the lowest sig

    asked on June 21, 2018
  20. Chemistry

    If the density of ocean water at depth of 10,000m is 1.071g/ml and if 25.0g of water at that depth contains 190mg of KCl what is the molarity of KCL?

    asked on October 12, 2014
  21. history-Civil War

    Sorry Sra...your sites didn't help..i was in sooo many sites last two discussion found on this don't know the answer to this ?

    asked on June 11, 2011
  22. History-Civil War

    Can you me more to the answer you gave me earlier today..Was there any course of action that Abraham Lincoln and his administration could have persued that might have prevented the outbreak of war between the North and the Confederacy

    asked on June 4, 2011
  23. english

    Anne Bradstreet's "The Author to Her Book" I realize she is writing about her poems and not a child but where is the irony in that?

    asked on July 23, 2008
  24. elementary statistics

    The distribution of cholesterol levels in teenage boys is approximately normal with u=170 and o=30. Levels above 200 warrent attention. Find the probability that boy has a cholesterol level greater than 225.

    asked on May 29, 2011
  25. Math

    What are two pairs of numbers of 105 as their least common factor ?

    asked on August 31, 2016
  26. Organic Chem

    4 KO2 + 2CO2 rightwards arrow 2 K2CO3 + 3 O2 How many moles of O2 can be produced from 12 moles of KO2 and 10 moles of CO2? If you were to produce 100.0 grams of O2 what would be the percent yield of the reaction?

    asked on November 14, 2014
  27. Statistics

    Suppose you are given data from a survey showing the IQ of each person interviewed and the IQ of his or her mother. That is all the information you have. Your boss has asked you to put together a report

    asked on May 14, 2014
  28. Maths

    The volume of a hemisphere is 250 ----- pi 3 Work out the total surface area of the solid hemisphere. Give your answer as a multiple of pi. Thank you.

    asked on January 3, 2017
  29. chemistry

    a 2.55g sample of an unknown has a volume of 3.73 cm. what is the density of the unknown

    asked on December 10, 2012
  30. us history

    Match each nation on the left with the correct description of the problem it presented for U.S. foreign relations following the Revolutionary War. a. Britain 1. threatened american b. france commerece in c. spain mediterranean d. barbary coast 2. demanded

    asked on September 14, 2008

    IS A PLANT CELL AN EXAMPLE OF A UNICELLULAR ORGANISM? iS AN ANT AN EXAMPLE OF MULTICELLULAR ORGANISM? What are Plants Plants are multicellular photosynthetic organisms that are believed to have evolved from green algae. Both groups have chlorophylls a and

    asked on February 20, 2007
  32. Physics

    When a mass of 21 g is attached to a certain spring, it makes 16 complete vibrations in 4.4 s. What is the spring constant of the spring? Answer in units of N/m

    asked on February 16, 2012
  33. statistics

    1. Find the mean, median, and range for each of the two data sets? 2. Find the standard deviation using the rule of thumb for each of the data sets. 3. Compare the two sets and describe what you discover. The following data sets shows the ages of the first

    asked on August 13, 2011
  34. Mathematics

    The graph of y = f(x) is transformed to give the graph of y= -f(x+3). The point A on the graph of y=f(x) is mapped to the point P on the graph of y= -f(x+3). The co-ordinates of point A are (9,1). Find the co-ordinates of point P. Thank you very much

    asked on January 3, 2017
  35. Thermodynamics

    Gas is contained in a n 8L vessel at a temperature of 20¡ãC and a pressure of 9atm. a)Determine the number of moles of gas in the vessel. b) How many molecules are there in the vessel?

    asked on August 27, 2015
  36. English

    Martin Amis's characterizations for Muhammad Atta in "The Last Days of Muhammad Atta" I read it but i don't see ANYTHING based on how he is characterized :( i can't post the website but if you type 'Have they been with you at all times?' in google than ull

    asked on February 24, 2008
  37. Physics

    A load of 47 N attached to a spring that is hanging vertically stretches the spring 0.22 m. What is the spring constant?

    asked on February 16, 2012
  38. physics

    A harmonic wave is traveling along a rope. The oscillator that generates the wave com- pletes 48.0 vibrations in 25.8 s. A given crest of the wave travels 413 cm along the rope in a time period of 10.5 s. What is the wavelength? Answer in units of m

    asked on February 16, 2012
  39. Economics

    Unable to find any info to answer my question I recently posted about.. role of economic theory in the way economics are run today & no clue found as to concrete examples of same...went through all your sites you suggested and looked many, many sites

    asked on July 27, 2011
  40. History-Civil War

    To - Damon....any comments on the question I posted on 07-10-11 @ 9:48 pm. I always appreciate your remarks...they help

    asked on July 11, 2011
  41. science

    was the bacteria that caused the bubonic plague a unicell or a multicell

    asked on September 22, 2009
  42. college

    how can i solve this problem? The number of tickets sold each day for a upcoming peformance of Handel's Messiah is given by N(x)=0.4x^2+8x+11, where x us the number of days since the concert was first announced. When will daily ticket sales peak and how

    asked on September 20, 2009
  43. algebra I

    If you toss a coin, the probability of gettig heads is 1/2. If you toss a coin 2 times. the probability of getting heds each time is 1/2*1/2 or (1/2)^2. -Write an expression to represent the probability of tossing a coin 'n' times and getting 'n' heads.

    asked on February 7, 2008
  44. Algebra

    A snack stand sells hot dogs for $2 and hamburgers for $3. If you want to spend exactly $14, write an equation to model this situation. If you purchase one hot dog , how many hamburgers will you purchase?

    asked on January 30, 2017
  45. Physics

    a place kicker must kick a football from a Lint 36 meters from the goal. As a result of the kick, the ball must clear the crossbar, which is 3.04 meters high. When kicked, the ball leaves the ground with a speed of 20 meters per second at an angle of 50

    asked on November 2, 2014
  46. Algebra

    mark can paint the fence in 40 minutes and manny can paint the fence in 30 minutes together how long will it take to paint the fence

    asked on September 7, 2014
  47. chemistry

    #1 A pipet delivers 10.5, 10.3, 10.9 and 10.7 ml (a) find the mean volume and deviation from the mean for each and calculate the average deviation from the mean (b) calculate the relative deviation (in %) for this set of data. Relative deviation (%) =

    asked on December 10, 2012
  48. History-Civil War

    1865: Marching through Georgia In terms of supply, how was Sherman"s march different than other Civil War campaigns? What I found was..Sherman telegraphed President Lincoln, asking him as a gift to Savannah, he would need 150 guns along with plenty of

    asked on June 28, 2011
  49. word problems

    Paul read 20 pages of a book in 15 minutes. (a) What is Paul’s reading rate of pages per minute? (b) If he continues to read at the same rate, how many pages will he read in 1 hour?

    asked on November 14, 2009
  50. Science

    Under conditions of high temperature, two protons could combine to form a deuterium necleus in the following reactions: p + p ----> 2H + e+ + ve + energy Write the equation for this reaction in terms of the nucleons involved by replacing the deuteriu

    asked on April 26, 2007
  51. chemistry

    the oxidation number of Mn in MnO4- is +4 (true or false)

    asked on December 10, 2012
  52. chemistry

    #1 A pipet delivers 10.5, 10.3, 10.9 and 10.7 ml (a) find the mean volume and deviation from the mean for each and calculate the average deviation from the mean (b) calculate the relative deviation (in %) for this set of data. Relative deviation (%) =

    asked on December 10, 2012
  53. math\

    2. A data set consists of a set of numerical values. Which, if any, of the following statements could be correct? a. There is no mode. (True or False) b. There are two modes. (True or False) c. There are three modes. (True or False)

    asked on August 13, 2011
  54. History-Civil War

    How important was the Union blockade to defeating the Confederacy, and how could the Union have won without it ?

    asked on July 2, 2011
  55. social studies

    What political dangers did President Lincoln face when he issued the Emancipation Proclamation ?

    asked on June 11, 2011
  56. Algebra

    Okay, so I am stuck on solving this using the substitution method. The mortgage department of the company is selling two model homes that are located on the same block. The square footage, as well as the type of model, determines the cost of these homes.

    asked on December 18, 2009
  57. English

    1. In the following sentence, what part of speech is the word Tearfully? Tearfully, I hung up the phone. A. Adjective C. Preposition B. Adverb D. Interjection 2. In the following sentence, how is the underlined phrase used? Both Joe and I wanted the last

    asked on June 14, 2008
  58. math

    Louise travels 10 miles in 15 minutes and alice drives 23 miles in 30 minutes. who is faster?

    asked on January 27, 2013
  59. economics

    Over the last 30 years in the United States, the realprice of a college education (i.e., after adjusting for inflation) has increased by almost 70 percent. Over the same period, an increasing number of high school grad- uates have sought a college

    asked on April 20, 2012
  60. History-Civil War

    To Damon, if available, this is my last question in this subject..for me very confusing..don't know where to start or what I'm looking for. Do you see an overall vision, or approach to command and strategy, in Ulysses S. Grant's actions as overall military

    asked on July 12, 2011
  61. History-Civil War

    1865-Marching through Georgia How did Sherman's march affect the Confederacy, and advance the cause of Union victory ?

    asked on June 27, 2011
  62. social studies

    Battle of Chanellorsville 1863....of all the battles fought by Robert E. Lee through 1863, this battle was his most impressive I correct ?

    asked on June 14, 2011
  63. social studies

    What political dangers did President Lincoln face when he issued the Emancipation Proclamation..I don't think Damon was able to help me or I'm looking at the question the wrong way ?Need your input on this Ms.Sue....Thank You

    asked on June 11, 2011
  64. chemistry

    how many grams of hydrogen are produced when 1gram of aluminum is reacted?

    asked on September 19, 2010
  65. Child Psychology

    Sally can tie her shoes but only with her mother's help. This fact suggests that tying shoes is

    asked on July 13, 2010
  66. United States History

    What were the NORTHERN WHIGS views regarding the following: -slavery -women's suffrage -prohibition of alcohol -guarantee of free public education -aid/help for handicapped -right to education for women and African Americans -practice of religion -Native

    asked on November 30, 2008
  67. math

    Add and reduce to lowet terms m/x^2-9 + 1/3x-9

    asked on November 23, 2008
  68. math

    Business and finance. Julio works as a quality control expert in a beverage factory. The assembly line that he monitors produces about 20,000 bottles in a 24-hour period. Julio samples about 120 bottles an hour and rejects the line he finds more than 1/50

    asked on October 23, 2008
  69. Psychology

    Which parts of the brain begin to change first during development? What function would be affected due to these changes? What region of the brain changes last?

    asked on September 28, 2008
  70. us history

    Which statement was NOT used by the British to justify taxing the colonies after 1763? A. The British debt had increased as a result of the French and Indian War B. There were heavy administration expenses associated with maintaining the empire. c. These

    asked on September 14, 2008
  71. Algebra

    Solve (8X5)+(8X1)-(2x6)+6-2x(2-1)

    asked on January 31, 2018
  72. physics

    a projectile is fired at 50 meters per second at an angle of 30 degrees below the horizontal off a cliff that is 50 meters high. How far away and at what speed and angle will this projectile land?

    asked on November 2, 2014
  73. math

    Ms Adams gave 1/4 of an apples to each of 10 children. How many apples did she give to the children in all?

    asked on January 23, 2013
  74. Math help pls

    X^-2 - Y^-2 __________ X^-1 + Y-1

    asked on January 13, 2013
  75. College biology

    In testing synaptic transmission, you found that there were 300 failures in 1000 trails of stimulating a presynaptic neuron. The average EPSP size was .7 mV +/- .2mV (mean +/- SD), and the average 'mini' EPSP size was .6mV +/- .1mV. Does the synapse obey

    asked on October 8, 2011
  76. reading

    I have a foster child (my niece) who has been through a lot in the past year. She is having huge difficulty in school. She is in 1st grade. My 21 year old daughter is home with her trying her best to help her but it is getting overwhelming to get her to

    asked on October 7, 2011
  77. biology

    How would you measure chloride current during an action potential

    asked on September 18, 2011
  78. Economics

    What is the role of economic theory in the way economies are run today? Give some concrete examples.

    asked on July 27, 2011
  79. history-Civil War

    Upon retreating from Petersburg, were there any options open to Lee that might have prolonged the War? Please chech if my answer is correct... No, Lee retreated from Petersburg and attempted to link up with the remnants of Confed. Gen. Johnson's defeated

    asked on June 30, 2011
  80. social studies

    Here I'm really upset with all this....New question..I need something to guide me...How did the changing command situation of the Army of the Potomac influence Gettysburg ? Also, did the elevation of George Gordon Meade make the Union victory

    asked on June 14, 2011
  81. social studies

    Please correct me if I'm wrong....Of the Union generals covered in the course through 1863, who do you consider the worst ? I say ...Gen. George B. McClellan ?

    asked on June 13, 2011
  82. social studies

    Describe how influential you would say the cold war has been on the world of today ?

    asked on June 12, 2011
  83. History-Civil War

    What political dangers did President Lincoln face when he issued the Emancipation Proclamation ?

    asked on June 11, 2011
  84. math

    If I place $300.00 in an account that accumulates 3%, how much is it worth in 30 years?

    asked on February 13, 2011
  85. biology

    where can i find practice ap bio questions?

    asked on September 18, 2008
  86. Statistics (2 mc probs)

    I have the following two multiple choice questions that are really throwing me for a loop: 1. Based on 500 people a researcher calculates the 95% confidence interval for the population proportion p: 0.123

    asked on August 4, 2008
  87. math

    a sprayer puts out 20 gallons of spray per acre the area is 2640 feet long by 1755 feet wide how many gallons would be sprayed on this area?

    asked on July 19, 2008
  88. Math

    Three seta of lights blink after 6 seconds, 8 seconds and 12 seconds respectively. What is the least number of seconds it would take for the lights to blink together.

    asked on June 20, 2016
  89. english

    what is the correct spelling with troublesome consonants,sheriff

    asked on April 30, 2014
  90. biology

    Why is it good for plants on the forest floor to have larger leaves but could be harmful to the trees above?

    asked on November 5, 2013
  91. chemistry

    a 2.55g sample of an unknown has a volume of 3.73 cm. what is the density of the unknown

    asked on December 10, 2012
  92. chemical reaction engineering

    Propane steam reforming over an alumina supported Ni metal catalyst: C3H8 (g) + H2O (g) → CO2 (g) + H2 (g) is proposed to follow these mechanisms: C3H8 + 2S1 ↔ C2H5-S1 + CH3-S1 (M1) H2O + 2S2 ↔ OH-S2 + H-S2 (M2) CH3-S1 + OH-S2 → CH3O-S1 + H-S2 (M3)

    asked on November 6, 2012
  93. college biology

    In testing synaptic transmission, you found that there were 300 failures in 1000 trails of stimulating a presynaptic neuron. The average EPSP size was .7 mV +/- .2mV (mean +/- SD), and the average 'mini' EPSP size was .6mV +/- .1mV. Does the synapse obey

    asked on October 12, 2011
  94. History-Civil War

    What was the most important technological or technical advance made during and for the Civil War ?

    asked on July 10, 2011
  95. History-Civil War

    What was the biggest challenge faced by the federal government at the end of the war in reintergrating the South into the United States of America ?

    asked on July 1, 2011
  96. History-Civil War

    To:Damon..His little bit of written info really helps me to complete my essays....New question...Was there an opportunity for the confederates to win during any day of Gettysburg? Identify & analyze the opportunity, and show how the South could have

    asked on June 18, 2011
  97. social studies

    What was the greatest obstacle that the Union army faced at Vicksburg, and how did they overcome it? I read so much on this ...were hills, surrounded by flooded marshlands & couldn't get through by foot..can't find a full explanation of this &

    asked on June 18, 2011
  98. social studies

    When was there a time through 1863 that the Confederates had a strong chance of winning the Civil War..?

    asked on June 16, 2011
  99. social studies

    Was there an opportunity for the confederates to win during any day of Gettysburgh ? How could the South have won ??

    asked on June 14, 2011
  100. social studies

    Was the Battle of Antietam a Union victory, defeat, or was it a stalemate ? Give reasons for your answer.

    asked on June 9, 2011


  1. 1
  2. 2