Nathaly

Most popular questions and responses by Nathaly
  1. Calculus

    A rectangular box has a square base. If the sum of the height and the perimeter of the square base is 14 in, what is the maximum possible volume?

    asked on March 24, 2017
  2. Chem

    If you need to prepare 250.0 mL of a pH 5.00 buffer tha t has a total buffer concentration of acetic acid + sodium acetate of 0.050 M, how many moles of each will you need to prepare the solution? Given solutions of acetic acid and sodium acetate with

    asked on March 19, 2017
  3. Organic Chemistry

    For molecular vibrations, the frequency of a stretching vibration is given by the following equation: Frequency (wavenumber) = 4.12 × √(K/) where K is the force constant of the bond and  (reduced mass) = (m1m2)/(m1+m2), where m is the mass of the

    asked on January 28, 2019
  4. Chemistry

    Based on the following observations for 3 unidentified metals (Z, X, and D) and solutions of their metal cations (Zn+ and En+), rank the metals in terms of reducing agent strength, from lowest to highest. -When metal X is placed in an aqueous solution of

    asked on April 2, 2017
  5. Chemistry (Acid Base)

    How many moles of H3O+ or OH- must you add to a liter of strong base solution to adjust its PH from 9.870 to 7.980. Assume a negligible change in volume.

    asked on September 27, 2017
  6. Math

    For her book club, Sharon reads for 45 minutes each day. Write an expressions for the number of hours she reads in d days. Can you please explain how to get the answer like the process?

    asked on August 16, 2018
  7. History

    Without our two political parties cutting across economic and geographic interests democracy as we know it could never have been made to funtion. The author probably meant to suggest that a) an important feature of u.s. political system is the broadly

    asked on May 1, 2008
  8. social studies

    Without our two political parties cutting across economic and geographic interests democracy as we know it could never have been made to funtion. The author probably meant to suggest that a) an important feature of u.s. political system is the broadly

    asked on May 1, 2008
  9. Math

    Find the inverse of the function. f(x) = -0.25x + 6 I am having trouble when there is a decimal to solve like -0.25x

    asked on October 12, 2018
  10. History

    a study of the causes of the american revolution of 1776, the french revolution of 1789, and the russian revolution of 1917 best supports the generalization that revolution is most likely to occur when a) a society has alower standard of living than those

    asked on May 1, 2008
  11. social studies

    Without our two political parties cutting across economic and geographic interests democracy as we know it could never have been made to funtion. The author probably meant to suggest that a) an important feature of u.s. political system is the broadly

    asked on May 1, 2008
  12. Calculus

    A box with a square base and no top is to be built with a volume of 6912 in^3. Find the dimensions of the box that requires the least amount of material. How much material is required at the minimum?

    asked on March 24, 2017
  13. History

    Between 1935 and 1975, a period that included Worl War II, the birth rate rose from 16.9 to 25 per 1000 people. what was the most likely cause of this baby boom? a) the change in view toward artificial birth control methods b) the exxpansion of the middle

    asked on May 1, 2008
  14. Calculus

    For a cylinder with a surface area of 20 20, what is the maximum volume that it can have? Round your answer to the nearest 4 decimal places.

    asked on March 24, 2017
  15. History

    Between 1935 and 1975, a period that included Worl War II, the birth rate rose from 16.9 to 25 per 1000 people. what was the most likely cause of this baby boom? a) the change in view toward artificial birth control methods b) the exxpansion of the middle

    asked on May 1, 2008
  16. Science

    Which of the following is a nonelectrolyte? a) C3 H8 (propane gas) b) H2 SO (sulfuric acid) c) HCL (hydrochloric acid) d) HNO 3 (nitric acid) e) NaCL (table salt)

    asked on May 1, 2008
  17. Math - solving for a variable

    solve 2x+3y=12 for x i don't get this one and i am having a hard time solving equations like these. Help? Thank you!

    asked on September 5, 2018
  18. Math

    Can anyone please help me solve this? -v + 5 + 6v = 1 + 5v + 3

    asked on August 23, 2018
  19. Physics

    How could you use 100 pounds of force to lift a 200 pound weight? Explain precisely, listing any necessary distances and details. (This will take some converting!) I don't understand this question, could someone please help me? I think I only need the

    asked on November 23, 2016
  20. Physics

    How could you use 100 pounds of force to lift a 200 pound weight? Explain precisely, listing any necessary distances and details. (This will take some converting!) I don't understand this question, could someone please help me? I think I only need the

    asked on November 23, 2016
  21. Chemistry

    If you had a 100 mL of 2.00 M HCl and you added 100 mL to it what is the final volume and final concentration? The volume would be 200ml, but would the concentration just stay the same?

    asked on March 26, 2017
  22. Physics

    Do you think that power generated by the electric company means the same thing as the power as explained in this lesson (meaning work over time)? Why or why not? My teacher gave a hint to "Think about each in terms of the amount of work done" Please help!

    asked on November 30, 2016
  1. Math

    Thank you so much!!

    posted on October 12, 2018
  2. Math

    Thank you!

    posted on August 23, 2018
  3. Math

    Oml thank you so much

    posted on August 16, 2018
  4. Math

    Divide 33 photos into two groups si the ratio is 4 to 7

    posted on October 9, 2017
  5. Math

    Oh thanks! Now, I get it and thanks for the help. I can do this on my own now.

    posted on March 29, 2017
  6. math

    The answer is michael bought 11 shares each costing $16

    posted on May 16, 2016
  7. math

    The answer is 36 banner that she would need.

    posted on April 1, 2013
  8. social studies

    my doughet name nathaly cant answer social studies question and she need help please help her

    posted on November 27, 2012
  9. History

    I think is c because baby boom is a recovered of the soldiers that died in world war II

    posted on May 1, 2008
  10. History

    i think is c) but i'm not sure

    posted on May 1, 2008