Irma

Most popular questions and responses by Irma
  1. Physics

    A standard man uses crutches. The crutches each make an angle of 25 degrees with the vertical. Half the standard man's weight is supported by the crutches; Assuming the standard man is motionless, find the magnitude of the force supported by each crutch.

    asked on December 14, 2015
  2. intermediate algebra

    A farmer with 3000 feet of fencing wants to enclose a rectangular plot that borders on a straight highway. If the farmer does not fence the side along the highway, what is the largest area that can be enclosed?

    asked on March 8, 2010
  3. intermediate algebra

    A farmer with 3000 feet wants to enclose a rectangular plot that borders on a straight highway. If the farmer does not fence the side along the highway, what is the largest area that can be enclosed?

    asked on March 8, 2010
  4. Math

    As part of a conservation effort for a lake, 70 fish were caught, tagged, and then released. Later, 80 fish were caught from the lake. Four of these 80 fish were found to have tags. Estimate the number of fish in the lake.

    asked on June 23, 2016
  5. Chemistry

    In a mountainous location, the boiling point of pure water is found to be 95°C. How many grams of sodium chloride must be added to 9 kg of water to bring the boiling point back to 99°C? Assume that i = 2. So what will my answer be in grams?

    asked on March 29, 2011
  6. Math

    Triangles ABC and DEF are similar. Find side AC. Round your answer to the nearest tenth. cm

    asked on June 9, 2016
  7. Chemistry

    Urea, (NH2)2CO, is dissolved in 73.5 g of water. The solution freezes at -0.095°C. How many grams of urea were dissolved to make this solution? (Answer must be in grams)

    asked on March 29, 2011
  8. math

    The stopping distance (s) of a car varies directly as the square of its speed (v). If a car traveling at 50 mph requires 170 ft to stop, find the stopping distance for a car traveling at v2 = 55 mph.

    asked on November 17, 2014
  9. math

    a square sheet of tin 30cm on a side is to be used to make an open - top box by cutting a small square of tin from each corner and bending up the sides. how large should be the square cut from each corner to make the box's volume as large as possible

    asked on May 12, 2013
  10. Algebra

    An object is dropped from a bridge. Find the distance the object has fallen when its speed reaches 132 ft/s. Use the equation v = 64d , where v is the speed in feet per second and d is the distance in feet.

    asked on July 6, 2016
  11. algebra

    ln(3x-4)-Ln(x+1)=Ln(2)

    asked on April 5, 2010
  12. chemistry

    What is the total pressure of a gas mixture that contains hydrogen at 0.45 atm, nitrogen at 0.25 atm, and argon at 0.60atm

    asked on September 25, 2009
  13. math

    pauline has 35 cups of flour. She makes cakes that require 2 1/4 cups each. if she makes as many such cakes as she has flour for, how much flour will be left over?

    asked on March 29, 2011
  14. Math Technology

    A pilot is flying to a destination 700 miles away at a bearing of 105 degrees. The cruising speed of the plane is 500 mile per hour and the the wind is blowing between 20 and 30 miles per hour at a bearing of 30 degrees. At what bearing should the pilot

    asked on April 4, 2013
  15. math

    If a car traveling at 50 mph requires 170 ft to stop, find the stopping distance for a car traveling at v2 = 60 mph.

    asked on November 17, 2014
  16. algebra

    If a car traveling at 50 mph requires 170 ft to stop, find the stopping distance for a car traveling at v2 = 60 mph.

    asked on November 17, 2014
  17. geometry

    what is the distance between N(5,2),K(-2,8)

    asked on December 6, 2011
  18. Math

    what is 1/5 in base 5?

    asked on March 29, 2011
  19. college algebra

    3^x-2=11

    asked on April 5, 2010
  20. Math

    Matthew goes swimming every 6 days and hiking every 8 days.how many days will pass before he does both activities on the same day?

    asked on October 4, 2017
  21. Math

    The sum of two numbers is five. The sum of the squares of the two numbers is thirteen. Find the two numbers. (Enter your answers as a comma-separated list.)

    asked on May 23, 2016
  22. chemistry

    What is the equation that represents the reaction of esterification of crystal violet? Thanks

    asked on March 4, 2015
  23. algebra

    If LOGx (A)=0.7 and LOGx (B) =0.5 how do I solve LOGx (B/A)

    asked on April 5, 2010
  24. Economics

    If at least 1 of the conditions for a perfectly competitive market is not met, does this invalidate the model of perfect competition?

    asked on April 4, 2010
  25. chemistry

    What is the total pressure of a gas mixture that contains hydrogen at 0.45 atm, nitrogen at 0.25 atm, and argon at 0.60atm

    asked on September 25, 2009
  26. chemistry

    what are the reasons why the Cu(II) solution has to be titrated immediately after addition of KI?

    asked on January 31, 2008
  27. Math

    Matthew goes swimming every 6 days and hiking every 8 days.how many days will pass before he does both activities on the same day?

    asked on October 5, 2017
  28. Math

    Find the distance between the two points: P1= ( -1,0) and P2= (2,4)

    asked on September 25, 2016
  29. math

    how you do percentages?

    asked on November 17, 2014
  30. math

    Write a word problem for 5 x 2 1/2 which requires the use of repeated addition model.

    asked on March 25, 2011
  31. 5th grade algebra

    how do I solve 3/4 +1/2= 1 1/y y=?

    asked on May 11, 2010
  32. college algebra

    Am not sure how to plug in e^e on calculator

    asked on April 5, 2010
  33. college algebra

    Solve: 2^x-3= 32^x+1

    asked on April 5, 2010
  1. math

    What percent of 36 is 90?

    posted on November 18, 2014
  2. math

    Yes, thanks so much! Irma

    posted on March 25, 2011
  3. math

    Repeated addition is like 4+4+4

    posted on March 25, 2011
  4. college algebra

    Do not know how to evaluate: e^e

    posted on April 5, 2010
  5. chemistry

    P total = 0.45 + 0.25 + 0.60 = 1.3

    posted on September 25, 2009