# Key

Popular questions and responses by Key
1. ## algebra

One serving of oatmeal has 8 grams of fiber, which is 34% of the recommended daily amount. What is the total recommended amount of fiber? Round to the nearest whole number.

2. ## College Algebra

Penelope is playing a number game with her sister June. Penelope is thinking of a number and wants June to guess it. Five more thank three times a number is between 23 and 32. Write a compound inequality that shows the range of numbers that Penelope might

3. ## chemistry

Need Help Finishing: Purpose: • To observe a chemical reaction. Materials: • Vinegar (acetic acid, CH3COOH) • Baking soda (NaHCO3) • Measuring cups and spoons • Cup Procedure: 1. Place ½ cup of vinegar in the cup. 2. Add 1 tablespoon on baking

4. ## College Algebra

A 30-foot string of lights will be attached to the top of a 24-foot pole for a holiday display. How far away from the base of the pole should the end of the string of lights be anchored.

5. ## College Algebra

A chicken farm ideally produces 300,000 eggs per day, but this total can vary by as much as 12,500 eggs per day. What is the maximum and minimum expected production at the farm?

6. ## english

Rewrite the following sentence correctly using colons and/or semicolons. The semester was almost over consequently, many students were frantically studying.

7. ## Algebra

Penelope is playing a number game with her sister June. Penelope is thinking of a number and wants June to guess it. Five more thank three times a number is between 23 and 32. Write a compound inequality that shows the range of numbers that Penelope might

8. ## chemistry check

1. 48 KNO3+ _ C 12 H22O11-„³ ? CO2+ _ N2+ _ K2CO3+ _ H2O a. 12 b. 24 s c. 36 d. 48 The reaction is 48 KNO3 + 5 C12H22O11 --> 24 K2CO3 + 36 CO2 + 55 H2O + 24 N2 So the answer is C =36 2. 6 KNO3+ _ S + ? H2O„³ _ H2SO4+ _ N2+ _ K2SO4 a. 2 b. 4 c. 6 d. 8

9. ## math

find the exact coordinates of the point on a circle of radius 5 at an angle of 5pi/3. thanks for any help! (:

10. ## chem

PLEEEZE help name the type of reaction K + MgBr -> Not enough information is provided. And not magnesium bromide is MgBr2. Is this a solution phase or exactly how is the K metal added to the MgBr2? As DrBob has indicated, not all of the information has

11. ## chemistry

Predict the precipitate that forms: HCl + AgNO3 --> ??? i don't know what the answer is but i think it is Cing04 AgCl. You need to learn the solubility rules. If you don't have a web site I can give you one. hey watz up can you help me with a question

12. ## Math

In the game SCRABBLE, there are 100 tiles. Two tiles are blank. Here is the number of tiles for each letter. Letter Number of Tiles Letter Number of Tiles A 9 N 6 B 2 O 8 C 2 P 2 D 4 Q 1 E 12 R 6 F 2 S 4 G 3 T 6 H 2 U 4 I 9 V 2 J 1 W 2 K 1 X 1 L 4 Y 2 M 2

13. ## chemistry

could someone check my answers to see if they are right? Balance the following equation and give the value of the stoichiometric coefficient marked with a question mark. 6 KNO3+ _ S + ? H2O _ H2SO4+ _ N2+ _ K2SO4 answer:6KNO3 + 5S + 2H2O --> 3 K2SO4 + 3N2

14. ## physics

A steel rod is 3cm in diameter at 25C. A brass ring has an interior diameter hole of 2.994cm at 25C. At what common temp will the ring just slide onto the rod? alpha(steel)- 11x10^-6 alpha(brass)= 19x10^-6

15. ## geography

Which countries in southwest Asia are democracies

16. ## chemistry check

please check Write the balanced equation, with the enthalpy component, for the rusting process, given that Hf for iron and oxygen is 0 and Hf for ferric oxide is -826 kJ/mol. 4 Fe (s) + 3 O2 (g) --------> 2 Fe2O3 (s) You need to add the heat one of three

17. ## Chemistry

Is this correct? Thanks. What is the standard cell potential? Pb2+ ( aq ) + 2e „³ Pb (s) -0.13V Mn2+ ( aq ) + 2e „³ Mn (s) -1.19V Pb2+ ( aq ) + 2e „³ Pb (s) -0.13V Mn (s) „³ Mn2+ ( aq ) + 2e ¡V +1.19V The electrode potential for a given cell,

18. ## geometry

Some irragation spray water in a circular pattern. you can adjust the nozzle to spray in certain directions. the nozzle in my diagram is set so it does not spray on the house. if the spray has a radius of 12 feet what is the approximate length of the arc

19. ## Math

Graph the inequality on the numberline and then write it in interval notation. 2/3a-1/4a

20. ## geometry

the triangles formed by two ladders leaning against a wall are similar. how long is the shorter ladder? the first ladder is 42ft and leans against the wall at 24ft, and the shorter ladder leans against the wall at 8ft.

21. ## chemistry

what are some the different types of chemical reactions that occur on a daily basis our lives? wouldnt there be many? eating, taking medications, would emotion be or cause chemical reaction? All of the above. Add breathing. Don't forget the cars we drive,

22. ## chemistry

are these endothermic or exothermic? 2H2O2 (l) ¨ 2H2O(l) + O2(g) ∆H = -190 kj C(s) + H2O (g) ¨ CO (g) + H2 (g) ∆H = +113 A negative delta H means the heat is given up by the reaction. A + delta H means the heat is added to the reaction. thanks

23. ## Algebra

Solve for x ax^2 - 2ax - 4 =0

24. ## math

find the zeros of the function by rewriting the function in intercept form? y=81x^2-16

25. ## algebra

simplify log 10^36 - 2(10^log 12) a. -108 b. 0.25 c. 1.5 d. 12

26. ## Finance

Cash Equation: Bettendorf Corporation has a book net worth of $17,800. The company's long-term debt is$6,900. Its net working capital, excluding cash, is $1,600. Its fixed assets are$21,300. How much cash does the company have? If the current liabilities

27. ## physics

An ideal gas, for which gamma=1.5, undergoes an adiabatic expansion in which its volume is doubled. if the initial temp if the gas is 27 C, what is the final temperature of the gas?

28. ## chemistry

Do any of you think that spontaneous combustion is possible? If a reaction brings about an increase of entropy (increase in randomness) and also exodermic, then a reaction is spontaneous. Right? Yes, I think spontaneous combustion is possible. It happens.

29. ## chemistry

having trouble posting but will try again. translate the following verbal description into scientific notation. magnesium ribbon is burned in pure oxygen gas. thanks The reaction forms magnesium oxide (MgO). Se if you can write the balanced reaction.

Neka Kiser, vice president of operations for Mountain National Bank, has instructed the bank’s computer programmer to use a 365-day year to compute interest on depository accounts (payables). Neka also instructed the programmer to use a 360-day year to

31. ## chemistry

i had a lab that combined 1/2 cup of H2O2 (118.3 ml) and 2 tsp of yeast. is the equation for the reaction 2H2O --> 2H2O + O2 what would the mass be for each product in the reation? Is the density of H2O2 1.4g/ml? Here is some interesting reading on this

32. ## algebra

Two trains leave stations 50 miles apart at the same time heading toward one another on parallel tracks. Train A is traveling 20 miles an hour and Train B is traveling 30 miles an hour. They pass eachother in how many hour(s).

33. ## chemistry

thanks for any help with these translations into scientific notation: 1. magnesium ribbion is dropped into an aqueous solution of hydrochloric acid 2. a solid peice of copper is burned in pure oxygen 3. zinc carbonate is strongly heated in a crucible 4.

34. ## College Algebra

The sum of three consecutive integers is −99. Find the three integers.

35. ## math

Think about it ... Julie says that a rotation of 180° around the origin is the same as the reflection in the x-axis followed by a reflection in the y-axis. Is Julie correct? Justify your answer and be sure to include a diagram. I just wanna know does

3. How to graph f(x)=-3x^2-1. 4. How to graph f(x)=-2\sqrt{x}.

37. ## philosophy

what would john locke think about the sci-fi movie "total recall" He believed men were driven by greed. The villian in the movie was just as greedy as they come. http://en.wikipedia.org/wiki/John_Locke

38. ## psychologgy

I am having trouble with this assignment. I don't want answers to all of these but if you could help me with one so i get an idea of the assignment. no chart needed just an example. pleeze. thanks Using a simple chart for display, create mnemonics for the

39. ## chemistry

I was way off on the other problem. But I see how you got the answer. Last one...thanks i'm learning more here thn class What is the sum of the coefficients (including “1”) of the following reaction? Sodium sulfate + calcium hydroxide ??? Write the

40. ## chemistry

thanks DrB I got AgCl also Could you check this problem as well? If you start with .500 moles of NaF, how many moles of CaF will form? I got .250 that is correct as far as i know i got the same thing That's correct. Your answer is right. I can only assume

41. ## chemistry

Translate the following verbal descriptions of reactions into scientific notation. Be on the lookout for diatomic molecules. 1.

42. ## Algebra

1.what is the range of f(x)=2. 2. How to graph f(x)=5x. 3. How to graph f(x)=-3x^2-1. 4. How to graph f(x)=-2\sqrt{x}. 5. How do we graph -4/x/. 6.It is curved at 1 on the graph. How to solve f(x)=2.

43. ## Math

10 animals 36 legs How many have 2 How many have 4 10X2 =20 36-20 = 16 Is that right?

44. ## help...chemistry

i am stumped on this. please help. Balance the following equation and give the value of the stoichiometric coefficient marked with a question mark. 48KNO3 + _ C12H22O11 ---> ? CO2 +_ N2 + _K2CO3 +_ H2O thanks I left the CO2 for you but it will balance.

45. ## psychology

Are there ways to revise current IQ tests and improve them so they are not culturally biased? Here are a couple of very interesting sites that may give you some good ideas. www.psychpage.com/learning/library/intell/biased.html

46. ## psychology

why is the Cognitive theory the most popular among contemporary therapists. I'm not sure what you mean by "popular." Very often therapists are relatively eclectic, using the best aspects of several theories rather than just one. It also depends on which

47. ## chemistry help

If you start with 20.0 grams CaCO3, how many moles of CaCO3 do you have? mols = g/molar mass. Approximately 0.200 mols.

48. ## chemistry help

i have come up with two answers but i am not sure which one is correct. please help. Balance the following equation and give the value of the stoichiometric coefficient marked with a question mark. 1. 48 KNO3+ 5C12 H22O11 ? CO2+ 24N2+ 24 K2CO3+55 H2O a.

49. ## psychology

What do the results of twins studies on IQ say about John Locke’s theory? (Broken Link Removed) Here are some quotes to assist you in this nature vs nurture debate. The last really answers your question. The others mainly point out the fallacies

3. How to graph f(x)=-3x^2-1. 4. How to graph f(x)=-2\sqrt{x}.

51. ## College Algebra

1. −2|b+1|−5=−9 2. −4|a+5|+3=−13

The ice rink sold 90 tickets for the afternoon session, for a total of $700. General admission tickets cost$10 and youth tickets cost $6 each. How many of each kind of tickets were sold? asked on September 3, 2017 53. ## math how can we write 4√2 as a decimal asked on September 1, 2017 54. ## algebra For the polynomial function, find f (-1) and f (2) f (x) = -x2 + 5 x3 - 6 f (-1) = ? f (2) = ? asked on February 18, 2016 55. ## chemistry check What is the sum of the coefficients (including “1”) of the following reaction? Sodium sulfate + calcium hydroxide ??? Na2SO4 + Ca (OH)2 --> 2 NaOH + CaSO4 a. 4 b. 5 c. 6 d. 7 e. 9 the sum of coefficients are = 1 + 1 + 2 +1 = 5 Goodness, you add the asked on January 30, 2007 56. ## chemistry may i get some help with this.. Translate the following verbal descriptions of reactions into scientific notation. Be on the lookout for diatomic molecules. 1. asked on January 19, 2007 57. ## Algebra how write 4 square root of 2 in decimals. asked on September 1, 2017 58. ## math Are all quadratics of the form y = ax^2+bx +c and y = -ax^2+bx +c functions? Explain your answer. asked on May 6, 2013 59. ## math solve the equation (x-5)^2=10 asked on January 2, 2009 60. ## chemistry Could you explain this problem to me? What is the sum of the coefficients (including “1”) of the balanced equation? __CaCO3 + __NaF __ CaF2 + __Na2CO3 a. asked on January 29, 2007 61. ## math use the quadratic formula to solve the equation: x^2+10x-10=0 asked on January 4, 2009 62. ## math solve the equation 3(x+2)^2-4=11 asked on January 3, 2009 63. ## math 11 -3 1/2 asked on December 2, 2010 1. ## geography Cyrus, lebanon, Israel, and yemen posted on April 12, 2019 2. ## Geometry Yes a year later he still needs help :( posted on February 19, 2019 3. ## PreCal 93•10^6 posted on December 6, 2018 4. ## math Thank you very much ^^ posted on April 24, 2018 5. ## Math Thank you posted on April 17, 2018 6. ## circle 133 posted on May 10, 2017 7. ## Geometry 133 posted on May 10, 2017 8. ## MATH Prob. A charity is holding a raffle and sells 2000 tickets for​$2 each. One ticket will win a grand prize of​ $500. Two other tickets will be selected to win consolation prizes of​$50 each. Find the expected value if you buy one raffle ticket.

posted on October 5, 2016
9. ## Physics

someone help him out, we all need a chance

posted on May 11, 2016
10. ## nonfiction

YALL BE LIEIN

posted on October 14, 2013
11. ## budgeting

posted on November 27, 2012
12. ## budgeting

Which one of the following statements best describes a budget "blind spot"? A. Too little money was set aside to cover an expense. B. This is an expense the person overlooked or did not account for when setting up the budget. C. This is an item that

posted on November 27, 2012
13. ## Romeo and Juliet Help (24 hours and no response)

what warning does the princes issue to the Capulet and Montagues?

posted on March 7, 2012
14. ## chemistry

28

posted on October 30, 2011
15. ## ECG Help - Bio

isn't it 1Hz, because it's from peak to trough, which is not one cycle!

posted on October 18, 2010