# Nathaly

Popular questions and responses by Nathaly
1. ## 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

2. ## 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?

3. ## 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

4. ## 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?

5. ## 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

6. ## 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

7. ## 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!

8. ## Math

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

9. ## 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.

10. ## 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?

11. ## 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.

12. ## 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?

13. ## 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

14. ## 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!

15. ## 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

16. ## 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

17. ## 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

18. ## 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

19. ## 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

20. ## 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

21. ## 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

22. ## 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)

1. ## Math

Ytt7 xdr x

posted on August 29, 2019
2. ## Math

Thank you so much!!

posted on October 12, 2018
3. ## Math

Thank you!

posted on August 23, 2018
4. ## Math

Oml thank you so much

posted on August 16, 2018
5. ## Math

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

posted on October 9, 2017
6. ## 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
7. ## math

The answer is michael bought 11 shares each costing \$16

posted on May 16, 2016
8. ## math

The answer is 36 banner that she would need.

posted on April 1, 2013