Most popular questions and responses by Virginia
  1. AP Chemistry

    For the reaction cyclopropane(g) → propene(g) at 500◦C, a plot of ln[cyclopropane] vs t gives a straight line with a slope of −0.00067 s−1 . What is the order of this reaction and what is the rate constant?

    asked on December 8, 2016
  2. physics

    A 2kg block situated on a rough incline is connected to a spring of negligible mass having a spring costant of 100N/m.the pulley is frictionless.the block is released from rest when the spring is unstretched.the block moves 20 cm down the incline before

    asked on April 2, 2015
  3. Business Math

    Hafers, an electrical supply company, sold $4,800, 12%, 90-day note for a time extension of a bill for goods bought by Ron Prentice. On June 12, Scott discounted the note at Able Bank at 10%. What proceeds does Scott receive?

    asked on November 5, 2012
  4. math

    a fair coin is flipped 5 times the random variable is x is defined to be the number of heads that are observed identify the probability mass function of the random variable x. x P(x)

    asked on October 3, 2012
  5. math

    If a phone company charges $ 0.35 $0.35 for the first minute and $ 0.30 $0.30 for each additional minute for a long-distance call, how long did you talk if the phone call cost $ 8.75

    asked on January 25, 2017
  6. statistics

    a test consists of 10 true or false questions followed by 10 multiple choice questions, each with 5 choices. How many ways can Faith mark her answer to this test?

    asked on September 28, 2014
  7. statistics

    I have an ordianry deck of 52 cards, which has 26 red and 26 black cards. A friend shuffles the deck and draws cards at random, replacing the card and reshuffling after each guess. I attempt to guess the color of each card. A. what is the probability that

    asked on March 9, 2008
  8. statistics

    Assume that a standardized test is designed to have the mean score of 100 and the standard deviation of 15. At the 95% confidence interval, how large does the sample size have to be if the margin of error is to be 3 points?

    asked on June 12, 2014
  9. Algebra

    If an apartment complex will need painting in 3 1/2 years and the job will cost $45,000, what amount needs to be deposited into an account now in order to have the necessary funds? The account pays 12% interest compounded semiannually.

    asked on November 19, 2014
  10. statistics

    assume that the volume of drink is normally distributed, with a mean of 2.0 liters and a standard deviation of 0.05 liter. Using the random sample of 45 bottles. The probability is 99% that the sample mean will contain at least how much soft drink?

    asked on March 19, 2013
  11. accounting

    a tabular analysis of the transactions made during august 2010 by witten company during its first month of operations is shown below each increase and decrease in stockholders' equity is explained.

    asked on January 13, 2013
  12. Math

    Diameter of a circle is 1.3*10^-12 what is the radius and Find the trinmial parrelgram represents area pf a parrelogram whose base is 3x+2 meters and height is 2x+3 meters find A(3)? Do not understand these what so ever please help me

    asked on June 1, 2010
  13. Physics

    a piece of copper of mass 300g at 950 degrees celcius is quickly transfered to vessel of negligible thermole capacity containing 250g of water at 25 degrees celcious. if the final steady temp of the mixture is 100degrees, calculate the masd of water that

    asked on January 20, 2019
  14. Lifeorientation

    How to adress the human or environmental problem about floods.

    asked on May 21, 2012
  15. computers

    You have been hired as a consultant by your neighbor to help her with her computer. You notice that she has a screen full of icons which appear to be Word documents, Excel Spreadsheets and other graphic files. How would you help her organize her data i.e.

    asked on July 8, 2010
  16. geography

    what is the economic relationship between Europe and its nonrenewable resources.

    asked on January 17, 2019
  17. math

    8 cards are drawn from a standard deck of cards with replacement let X=no of diamonds observed find P(X=3)

    asked on October 3, 2012
  18. biology

    i would like to know if you could help me figure out the blanks of this question. The pH scale ranges from __ to __.Pure water is ___. An acid is ______ 7 and a base is __________ 7. If you could let me know that would be great thanks

    asked on November 10, 2010
  19. physics

    A rifle bullet is fired from the top of a cliff at an angle of 30o below the horizontal. The initial velocity of the bullet is 800 m/s. If the cliff is 80 m high, how far does it travel horizontally?

    asked on June 26, 2010
  20. Social Studies

    What is the meaning of the symbols and colors of the Miami flag?

    asked on May 20, 2009
  21. Science

    A polar substance is most soluble in ... ? A non-polar substance is most soluble in ... ? A generalized statement summarizing the effect of bond polarity on the solbility of a substance in a solvent is ... ?

    asked on January 5, 2009
  22. Math

    I have 4 pieces of equipment that need to run one after the other. Two of them have to run at a maximum of 20 minutes each and be off a total of 90 minutes each. One of the remaining 2 peieces has to run at 15 minutes. No determined minutes off. How do I

    asked on October 27, 2008
  23. culture

    Why are some countries reluctant to have contact with other cultures? What do these countries lose by limiting contact with other cultures? What do they gain?

    asked on December 8, 2007
  24. pregunta

    palabra que comiense con la letra z , que describa algo de una persona Primero le agradecemos visitar Jiskha Homework Help Forum. ¿Le gustaría un buen diccionario? Aquí hay unos adjetivos: zafo, -a = unhurt zaguero,

    asked on September 20, 2006
  25. Sociology

    The state of California attempted to ban the sale of violent video games to young people. If the federal government attempted to do the same thing, what provisions of the Constitution might allow that regulation?

    asked on October 7, 2015
  26. math

    The area of a triangle is 54.5cm. What is the triangle's base if the height is 4 cm?

    asked on October 2, 2015
  27. english

    paraphrase paragraph four

    asked on March 11, 2015
  28. medical billing

    What code(s) is/are assigned for a patient admitted for an azathioprine 1 drug- induced aplastic anemia (initial encounter)? The patient has peripheral neuropathy of multiple joints of the lower extremities secondary to severe rheumatoid arthritis

    asked on October 17, 2014
  29. maths

    a triangle has sides of length 7 cm ,15cm and x cm. If x is an interger find (i) the minimum value of x (ii) the maximum value of x

    asked on November 2, 2013
  30. Chemistry

    What is the molecular equation for HCl(aq) + NH4OH(aq)?

    asked on March 27, 2013
  31. math

    how do you do anarrays and an expanded algorithm problem find each partial product then add to find the product. 29 x47 -------- ()() ()()() ()()() + ()()() -------- ()()()()

    asked on November 7, 2012
  32. Biology

    Lisst some nonliving things and tell what characteristics each has in common with a living thing

    asked on August 24, 2010
  33. grammar

    Light bulbs need to be replaced in Day Surgery waiting room, a painting need to be mount back on the wall

    asked on June 28, 2018
  34. medical billing

    what is ms-drg

    asked on October 17, 2014
  35. Math 112

    On your first two exams, your grades are 86% and 88% x=86 and y=88 What must you get on the third exam to have an average of 90%?

    asked on October 15, 2014
  36. statistics

    If a fair die is rolled, what is the probability of getting an even number, a number less than 5, a number larger than 6 and an odd number?

    asked on September 28, 2014
  37. management Economics

    chapter 5 answers problems start from pages 200

    asked on May 21, 2012
  38. geometry

    IN this triangle, R=8ã2 what is the value of P

    asked on April 7, 2011
  39. Financial Management in Health Care Organizations

    $5,000 compounded semiannually at 6% for 5 years

    asked on March 26, 2010


    asked on October 2, 2008
  41. English

    I Have an oral presentation to do on how past wars have affected our lifestyles today can you help? If you give us an outline of what you've thought about for your presentation, we'll be glad to add our comments. Depending upon how long the presentation

    asked on March 19, 2007
  1. Science

    the answer is arsenic, it is in the same family and look it up its correct!!!!

    posted on May 1, 2019
  2. math

    I dont know

    posted on January 18, 2017
  3. Grammar

    WOW!! From23 to 200 students . . . it is quite an achievement. Congratulations in your new position as Chancellor!!

    posted on September 12, 2016
  4. life orientation

    Human dignity,rights to basic education and rights to life

    posted on May 4, 2016
  5. math


    posted on October 1, 2015
  6. Legal aspects of health Information management

    what is the three types of fruadulent billing Meredith is conducting

    posted on July 19, 2014
  7. Math - average grade

    I have a 90 average i just got a 50 on my mid-term what is my grade average?

    posted on November 10, 2012
  8. health

    I need to know just what questions I should be able to answer about the Patient Self-determination on the delivery of heath care.

    posted on May 4, 2012
  9. macroeconomics

    3–5 slides: Include any supply and demand figures or calculations to support your reasoning

    posted on October 8, 2011
  10. Accounting

    $5,000 compounded semiannually at 6% for 5 years

    posted on March 26, 2010
  11. Criminal Investigations

    Explain why a final exit suicide may be interpreted as a homicide

    posted on April 8, 2009
  12. Opinion Question: Your opinions are needed please!

    I think it's retarded that any educational institution, be it middle school, high school, or college should give up its athletic programming, regardless of what the state or governmental officials think. Athletics are a very necessary commodity in the

    posted on October 18, 2008
  13. Axia College

    My suggestion is that if you are currently enrolled at Axia College, you can inquire through your enrollment counselor, your financial aid counselor, or your academic counselor as to whether Axia Degrees are accepted in the job market. According to what I

    posted on August 30, 2008