Popular questions and responses by Kell
  1. College Chemistry

    Using the values for the heat of fusion, specific heat of water, or heat of vaporization, calculate the amount of heat energy in each of the following: * calories removed to condense 125g of steam at 100 degree C to cool the liquid to 15 degree C * joules

    asked on September 16, 2010
  2. Chemistry

    Determine the percent yield for the reaction between 276.94 g of Sb2S3 and excess oxygen if 59.19 g of Sb4O6 is recovered along with an unknown amount of sulfur dioxide gas. (include 2 decimal places in your answer)

    asked on January 24, 2020
  3. Math Help PLEASE

    Write an equation of the line containing the givin point and parallel to the givin line. Express your answer in the form y=mx+b The equation of the line is y=? (-5,9);8x=7y+5

    asked on May 2, 2008
  4. Math

    Karen ran 42 miles in 6 days. On Sunday she ran 12 miles. Each of the other days she ran the same distance. 1. Write an algebraic equation to show how far Karen ran. 2. Calculate how many miles Karen ran each day for the week. 3. Explain how you arrived at

    asked on January 20, 2016
  5. alg

    If f is a 1-1 function and f(0) = 4, f(1) = 5, f(2) = 7, and f(3) = 9, find the following. f ^−1(5)

    asked on April 14, 2014
  6. Alg.

    Given g(x) = x^2 – 3, find the following. g(−4 + h) − g(−4)/ h (all over h)

    asked on April 14, 2014
  7. math

    when is it more practical to use a scale drawing rather than an actual size drawing

    asked on March 31, 2012
  8. Soviet Union-US-Cold War

    What's the significance of the relationships of the Soviet Union and the United States to developing countries during the Cold War. How do you think it relates to conditions today?

    asked on June 11, 2011

    What are some of the reasons the Cold War ended and do you think there is any way this long period of history could have been avoided?

    asked on June 11, 2011
  10. chemistry

    the boiling point of water at 735mmHg is 99.073 degrees celcius. What mass of NaCl should be added to 3.11kg water to increase the boiling point to 100.000 degrees celcius? Kb for water = 0.510 K Kg mol-1

    asked on October 6, 2010
  11. math

    5m - 11 and 2m + 3=

    asked on March 23, 2010
  12. Ethics

    Can groups or organizations function autonomously apart from the individuals that comprise them

    asked on March 22, 2010

    Evaluate K^2 -5 When K = -6

    asked on June 12, 2008
  14. Math Help PLEASE

    Divide and Check 4x^9-6x^4+6x^2/2x^2

    asked on June 12, 2008
  15. writing

    Discuss how, as a professional, you may be able to assist children in refining their learning and metacognitive problem-solving strategies. At what stage in the maturation process do you believe it is most important to address a child’s learning and

    asked on June 11, 2008
  16. Algebra Help PLEASE

    How is dividing a polynomial by a binomial similar to or different from the long division you learned in elementary school? Can understanding how to do one kind of division help you with understanding the other kind? What are some examples from real life

    asked on June 6, 2008
  17. Algebra Help PLEASE

    King’s Service Station uses two kinds of cleaning solution containing acid and water. “Attack” is 2% acid and “Blast” is 6% acid. They want to mix the two to get 60qt of a solution that is 5% acid. How many quarts of each should they use. Let a =

    asked on May 8, 2008
  18. Math Help PLEASE

    Solve the system of equations by graphing then classify the system as consistent and the equation as dependent or independent. 4x-y=26 4x+5y=-10 What is the solution of the system of Equations? (type am ordered pair Type N if there is no solution Type R if

    asked on May 6, 2008
  19. computers

    Are there certain curricular areas in which technology is more useful than in others? Such as in a classroom

    asked on April 28, 2008
  20. Math

    The function,p(d)=1+ d over 33, give the pressure, in Atmospheres (atm), at a depth (d) in a sea (d is in feet) note that p(0)=1 atm, p(33)=2, and so on, find the pressure at 80 feet. The pressure at 80feet is____atm (type an interger or simplifyed

    asked on April 24, 2008
  21. Math

    I need a real life example for Domain and rang I was thinking like A heart beat machine but how would I explain it....

    asked on April 24, 2008
  22. math

    f (x) = 4x – (-5x) + 9 1) (6) 2) (-3)

    asked on April 23, 2008
  23. MAth

    Find each of the indicated function value. f (x) = 4²x - 5x + 9 a) (2) b) (-3a)

    asked on April 23, 2008
  24. Algebra

    Determine whether the number is a solution of x

    asked on April 9, 2008
  25. science

    Why is it important to maintain core body temperature? and Why is it important to maintain the concentration of water within a mammals internal environment?

    asked on October 4, 2007
  1. algebra

    it will not let me post the web site I went too

    posted on May 6, 2008
  2. Math Help PLEASE

    It says it is wrong it is looking for 2 point per equation

    posted on May 6, 2008
  3. alegebra

    1) 4*s evaluates to 4s s*3-4*s*2-4*s evaluates to -9s s*3-4*s*2-4*s+16 evaluates to -9s+16 2) 3*y*2 evaluates to 6y -12*y*4/-3*y*2 evaluates to -5y

    posted on May 6, 2008
  4. algebra

    F(x) = x^3 - 7x = -2x = 2 x^3 =5x - 2 =0 square root ^3 ( x^3) = square root^3 (5x - 2) x = square root^3 (5x - 2)

    posted on May 6, 2008
  5. algebra

    f(x) = 3x² – 2x + 8 f(0); f(7a)

    posted on May 6, 2008

    Merci pour les compléments....

    posted on April 23, 2008
  7. math

    (11/12) - ( 1/3 1/4) simplify fractions (11/12) -(1/12) = 10/12 =5/6

    posted on October 4, 2007