kendra

Most popular questions and responses by kendra
  1. Math help and check

    Which kind of function best models the set of data points (–1, 22), (0, 6), (1, –10), (2, –26), and (3, –42)? linear **** quadratic exponential none of the above 2. Which kind of function best models the set of data points (–3, 18), (–2, 6),

    asked on March 9, 2015
  2. English

    8. What can readers infer from the following quote from Act V, Scene 3 of Romeo and Juliet? Romeo: O, be gone! By heaven, I love thee better than myself; For I come hither arm’d against myself: Stay not, be gone;--live, and hereafter say, A madman’s

    asked on March 13, 2015
  3. Math check please

    1. Solve the system of equations y=2x^2-3 y=3x-1 a)no solution b)(-1/2,5),(2,-5/2) c)(-1/2,-5/2),(2,5)**** d)(1/2,5/2),(2,5) 2. How many real number solutions are there to the equation 0=-3x^2+x-4? a)0 ***** b)1 c)2 d)3 3.solve the equation by completing

    asked on March 19, 2015
  4. Chemistry

    In the experiment Nitration of Methyl Benzoate why is it important to add the nitric acid-sulfuric acid mixture slowly over a 15 minute period?

    asked on February 23, 2010
  5. Math

    The price of a stock, A(x), over a 12-month period decreased and then increased according to the question A(x)= 0.75x2-6x+20, where x equals the number of months. The price of another stock, B(x), increased according to the equation B(x)=2.75x+1.50 over

    asked on June 9, 2008
  6. math-algebra 2

    What are the solutions of the quadratic equation? 2x2 – 16x + 32 = 0

    asked on October 11, 2012
  7. Literature

    PART A: What is Asimov's main idea in this essay? (Science an the sense of wonder) A- space is best appreciated through poetry B- poetry and science can work together****** C- the universe is more than beauty D- scientific knowledge is always advancing

    asked on October 17, 2016
  8. General Chemistry

    Cinnamic alcohol is used mainly in perfurmery, particularly in soaps and cosmetics. Its molecular formula is C9H10O. a. Calculate the percent composition by masss of C, H, and O in cinnamic alcohol. b. How many molecules of cinnamic alchol, not acid ,are

    asked on May 17, 2010
  9. Psychics

    A freight car is moving freely along a railroad track at 7.0 m/s and collides with a tanker car that is at rest. After the collision, the two cars stick together and continue to move down the track. What is the magnitude of the final velocity of the cars

    asked on March 17, 2011
  10. General Chemistry

    PLEASE ANSWER VERY SOON I AM STUCK! Crystalline silicon has a cubic structure. The unit cell edge length is 543 pm. The density of the solid is 2.33 g/cm3. Calculate the number of Si atoms in one unit cell.

    asked on July 14, 2010
  11. physics

    According to Newton's version of Kepler's third law, how would the ratio T^2/r^3 change if the mass of the Sun were doubled?

    asked on January 16, 2010
  12. Genera Chemistry

    Nitric oxide (NO) reacts with oxygen gas to form nitrogen dioxide (NO2), a dark-brown gas: 2NO(g) + O2(g) -> 2NO2(g) In one experiment 0.886 moles of NO is mixed with 0.503 moles of O2. Calculate which of the two reactants is the limiting reagent. Please

    asked on May 26, 2010
  13. Math

    Round to the nearest hundredths 23.456

    asked on November 22, 2014
  14. English

    I need a theme statement about discrimination

    asked on May 23, 2017
  15. Physics

    In a popular amusement park ride, a cylinder of radius 2.19 meters is set in rotation at an angular speed of 5.09 rad/s. The floor then drops away, leaving the riders suspended against the wall in a vertical position. What minimum coefficient of friction

    asked on April 28, 2008
  16. math

    Sam received a $290 discount loan to purchase a stereo. The loan was offered at 16% for 90 days. Find the interest in dollars and the proceeds for the following problem. The interest is $12.60, $11.60, or $10.60 ? The proceeds are $279.40, $278.40, or

    asked on January 26, 2010
  17. chemistry

    please explain why the gem-dimethyl groups appear as separate peaks in the proton NMR spectrum of isoborneol although they almost overlap in borneol

    asked on March 2, 2010
  18. word problem Math

    A pollster interviewed 500 university seniors who owned credit cards. She reported that 240 had Goldcard, 290 had Supercard, and 270 had Thriftcard. Of those seniors, the report said that: 80 owned only a Goldcard and a Supercard, 70 owned only a Goldcard

    asked on August 10, 2009
  19. Physics

    What hanging mass will stretch a 1.9-m-long, 0.54 - diameter steel wire by 1.2 ?

    asked on June 27, 2011
  20. chemistry

    How many grams of calcium carbonate are required to prepare 50.0 grams of calcium oxide? CaCO3-> CaO + CO2

    asked on March 11, 2014
  21. UncG

    A 1300 kg sports car accelerates from rest to 90 km/h in 7.4 s. What is the average power delivered by the engine?

    asked on June 6, 2010
  22. chemistry

    Assuming all volume measurements are made at the same temperature and pressure, how many liters of oxygen gas would it take to react completely with 7.25 liters of hydrogen gas? Show all of the steps taken to solve this problem. Unbalanced equation: H2 (g)

    asked on July 14, 2011
  23. Physics

    A 437.7 N child and a 237.1 N child sit on either end of a 2.5 meter long seesaw. How far from the 437.7 N child should the pivot be placed to ensure rotational equilibrium? disregard the mass of the seesaw. answer in units of m.

    asked on April 2, 2008
  24. Chemistry

    it takes 37.50 mL of 0.152 M sodium chromate to titrate 25.00 mL of silver nitrate. what is the molarity of the silver nitrate solution

    asked on November 15, 2012
  25. Physical Science: PLEASE HELP!!!!!

    A wooden raft 3 m long x 2 m wide x 20 cm thick floats on a freshwater lake. A) Determine the buoyant force? B) If the raft itself has a mass of 600 kg, how many 65-kg people could it support?

    asked on February 23, 2012
  26. Statistics

    4. The Graduate Record Exam (GRE) has a combined verbal and quantitative mean of 1000 and a standard deviation of 200. Scores range from 200 to 1600 and are approximately normally distributed. For each of the following problems: (a) draw a rough sketch,

    asked on November 22, 2014
  27. Chemistry

    what is the magnitude and sign of the molar heat of vaporization of butane

    asked on December 13, 2012
  28. chemistry

    Explain how the addition of a solute affects the vapor pressure of the solvent.

    asked on July 14, 2011
  29. Spanish

    Translate: Cuantos estudiantes hay en tu clase de espanol Translate:Que necesitopara mi clase de ingles? Thank you for using the Jiskha Homework Help Forum. I do not see that you even made an attempt! You learn much more when you try first! How many

    asked on December 13, 2006
  30. Chemistry

    why is it important to add the nitric acid-sulfuric acid mixture slowly over a 15 minute period?

    asked on February 23, 2010
  31. Chemistry

    Which of the following statements is (are) true? A. The vapor pressure of CO2 is lower than the vapor pressure of water. B. Sea water has a lower vapor pressure than distilled water. C. The vapor pressure of 1 m NaCl is higher than the vapor pressure of

    asked on August 30, 2010
  32. algebra

    Perform the indicated operation. x/2+y/3-z/4

    asked on April 23, 2014
  33. chemistry

    Use the collision theory to explain how increasing the surface area of a solute will increase the rate of the dissolving process.

    asked on July 29, 2011
  34. chemistry

    The boiling point of a solution will ______ and the vapor pressure will _______ with a(n)_____ in the amount of dissolved solute.

    asked on July 14, 2011
  35. General Chemistry

    Nitric oxide (NO) reacts with oxygen gas to form nitrogen dioxide (NO2), a dark-brown gas: 2NO(g) + O2(g) -> 2NO2(g) In one experiment 0.886 moles of NO is mixed with 0.503 moles of O2. Calculate which of the two reactants is the limiting reagent. Please

    asked on May 24, 2010
  36. Art Appreciation

    Compare Raphael's School of Athens with Veronese's Christ in the House of Levi. How did each work reflect the environments of Rome or Venice?

    asked on April 22, 2013
  37. physics

    during space flight, astronauts often refer to forces as multiples of the force of gravity on earth's surface. what does a force of 5g mean to an astronaut?

    asked on January 16, 2010
  38. Calculus

    Let f(t)=(1)/(t) Find a value of t such that the average rate of change of f(t) from 1 to t equals 14. t= ____

    asked on January 21, 2016
  39. earth

    Some people have proposed building a giant elevator from Earth's surface to geosynchronous orbit. The top of the elevator would then have the same orbital distance and period as any satellite in geosynchronous orbit. Suppose you were to let go of an object

    asked on October 7, 2011
  40. physics

    The engine of a toy rocket supplies an average acceleration of 38.0 m/s/s to the rocket for an interval of 0.80 s. A.)If the toy roocket is launched vertically, how high does it rise in this interval? B.) How fast is the rocket moving at the end of 0.80 s?

    asked on January 19, 2010
  41. Math

    Kendra has 5.5 pounds of popcorn and wants to package it equally in 50 bags. How can she use place-value reasoning to find the amount of popcorn to put in each bag?

    asked on September 14, 2016
  42. College Algebra

    An executive invests $26,000, some at 8% and some at 6% annual interest. If he receives an annual return of $1,800, how much is invested at each rate?

    asked on September 15, 2015
  43. Psychics

    Bradley, working in his 23 C kitchen, is cooking himself a crepe in an iron skillet that has a circular bottom with a diameter of .30 m. How hot must the skillet be in order for Bradley to make a 710.3 m^2 crepe that just fills the bottom of the pan?

    asked on March 1, 2011
  44. chemistry

    A sample of gas has increased in temperature from 20° Celsius to 22° Celsius. Which of the following happens as the temperature of the gas goes up? A.The gas undergoes a phase change. B. The velocity of the gas particles decreases. C.The kinetic energy

    asked on July 29, 2011
  45. General Chemistry

    Calculate the number of C atoms, H atoms, and O atoms, in 1.50 grams of glucose (C6H1206). I do not understand how to calculate this. Please explain and post the correct answers.

    asked on May 17, 2010
  46. math

    One day during flu season, 1/3 of the students in a class were out sick, and only 24 students were left. How many students are in the class?

    asked on December 5, 2016
  47. social studies

    Where can I find information on: "What products might we get from the seven major regions of the United States?" (Great Lakes, Mountain, Southwest, Northeast, Plains, Pacific, Southeast) This encyclopedia article discusses the regions of the U.S. The

    asked on June 13, 2007
  48. Polynomials and quadratic application

    I want to make a rectangular garden by fencing in a area on the back of my house. Three sides of the rectangle will be fencing; the fourth side will be the side of the house. I have 60 feet of fence. What dimensions should I make the rectangle so that I

    asked on April 28, 2012
  49. math

    mia gave 1/3 of her 24 marbles to david how many did david get?

    asked on April 26, 2012
  50. us history

    was the growth of democracy just a coincidence or did it contribute to the market revolution? i am trying to us this as a timeline.

    asked on July 11, 2011
  51. Algebra

    It is estimated that each cigarette a person smokes shortens that person's life by the amount of time she or he took to smoke it plus ten minutes. Write an algebraic rule that determines the number of minutes (t) a person's life is shortened by smoking c

    asked on August 25, 2010
  52. General Chemistry

    Cinnamic alcohol is used mainly in perfurmery, particularly in soaps and cosmetics. Its molecular formula is C9H10O. a. Calculate the percent composition by masss of C, H, and O in cinnamic alcohol. b. How many molecules of cinnamic alchol are contained in

    asked on May 17, 2010
  53. General Chemistry

    Calculate the number of C atoms, H atoms, and O atoms, in 1.50 grams of glucose (C6H1206).

    asked on May 17, 2010
  54. Elementary Math for Educators

    give three ways a student could find the product of 9x7 if she had not memorized this fact.

    asked on August 9, 2009
  55. Us history

    the sugar act was a new tax on molasses but actually lowered an earlier text what were the colonists doing in response to the earlier text that the sugar act try to stop? A.) Declaring independence from Britain B.) Paying only a portion of it C.) Holding

    asked on October 3, 2016
  56. math

    Mia gave 1/3 of her 24 marbles to david. How many did david get?

    asked on April 26, 2012
  57. Physics

    On a distant planet, golf is just as popular as it is on earth. A golfer tees off and drives the ball 4.3 times as far as he would have on earth, given the same initial velocities on both planets. The ball is launched at a speed of 40 m/s at an angle of

    asked on September 19, 2011
  58. Chemistry

    A buffer solution is prepared by dissolving 0.400 mol of CH3COOH and 0.200 mol of CH3COONa in 1.00 L of water. 1.00 mL of 10.0 M HCl is added to a 100 mL portion of this solution. What is the final pH of the resulting solution? Ka of CH3COOH = 1.8 x 10¯5

    asked on June 26, 2011
  59. digital arts

    sculpture is an example of preforming art true false**

    asked on February 7, 2018
  60. Chemistry

    When mixing 10m/L of 6 M HCl (diluted with 10 mL of water) with 0.1 g of Mg, how many moles of H2 are created and how many moles of Mg are reactant? I understand I must use n=(PV)/(RT) to find H2, since it is a gas, but the constant R is still confusing to

    asked on February 26, 2017
  61. physics

    Calculate the potential energy of a 9.00 g bullet traveling 4.00 m above the ground at 50.0 m/s with respect to the ground

    asked on November 14, 2014
  62. goverment

    America’s founders envisioned a _________________________ that was closer to the government of ancient Athens than to the political system found in America today

    asked on June 24, 2013
  63. chemistry

    N2+2H2=N2H4 What is the concentration of H2 at equalibrium when (N2)=.033 and (N2H2)= .042 M? Keq=5.29

    asked on April 26, 2012
  64. calculus

    use differentials to approximate the value of the squareroot of 4.3

    asked on April 18, 2012
  65. Algebra

    The sum of two numbers is 68 and the difference is 10. What are the numbers?

    asked on April 26, 2011
  66. math

    two-fifths of the voters already prefer candidate x. if he took money from a political action committee to buy television time, a third of those who do not now prefer him would be convinced to vote for him. But he would los the support of a fifth of those

    asked on March 17, 2011
  67. Algebra Help

    It is estimated that each cigarette a person smokes shortens that person's life by the amount of time she or he took to smoke it plus ten minutes. Write an algebraic rule that determines the number of minutes (t) a person's life is shortened by smoking c

    asked on August 25, 2010
  68. English

    1)In what ways are the societies described in "The Children of Men" and "Brave New World" dystopias? 2)For what common reasons do the characters of "The Children of Men" and "Brave New World" rebel against their respective societal values?

    asked on November 27, 2008
  69. science

    describe how carbon dioxide is managed by the rbc from the tissue

    asked on May 8, 2008
  70. algebra 1

    how do you even start to begin how to slope in standard form and slope intercept and point slope cuz i have a test tomrrow on it Although it might be too late for your test, I searched Google under the key words "slope" to get these possible sources:

    asked on March 5, 2007
  71. Math

    There are 40 yellow and blue marbles in a bag. There are 4 times as many blue marbles as yellow marbles. How many yellow marbles are there? 5 How many blue marbles are there? 35

    asked on October 21, 2015
  72. Statistics

    The grades in the final exam of a random sample of 25 students produce a standard deviation, s = 9.5. a) Construct a 90% confidence interval estimate for the population variance, . b) Can we infer at 10% level of significance that the population variance

    asked on November 25, 2014
  73. Math

    What is the amount of interest on the loan? $ b. What is the maturity value of the loan? $ c. What is the maturity date of the loan? Enter the full name of the month.

    asked on September 2, 2014
  74. CHEMISTRY Homework Assignment

    Hi I noticed someone else put this question up, but I am having a hard time with this one. I HAVE NO IDEA WHAT TO DO. What will be the products of the electrolysis of an aqueous solution of zirconium iodide (ZrI4)? (The electrodes themselves are platinum.)

    asked on May 10, 2013
  75. Englishh

    if my quote is exactly 4 lines do i have to indent it using MLA formatting an citations

    asked on April 11, 2013
  76. chemistry

    31.0mL sample of LiOH, concentration unknown, is titrated with .52 M HCl. It takes 42.9 ml of HCl to reach the endpoint. What is the concentration of the base?

    asked on April 26, 2012
  77. math

    show that the sum of four consecutive whole numbers is divisible by 2

    asked on November 29, 2011
  78. Physics

    On a spacecraft two engines fire for a time of 560 s. One gives the craft an acceleration in the x direction of ax = 5.10 m/s2, while the other produces an acceleration in the y direction of ay = 7.30 m/s2. At the end of the firing period, the craft has

    asked on September 19, 2011
  79. Algebra

    If 10,000 is invested at 4.8% simple interest, how long will it take for the account balance to grow to 11,200.

    asked on June 1, 2011
  80. Physics

    A con of soda displaces 3.79 * 10^-4 m^3 of water when completely submerged. Each 0.018 kg can contains 3.54 * 10^-4 m^3. Compare the buoyant force on a can of diet soda of density 1001 kg/m^3 to the force on a can of regular soda of density 1060 kg/m^3.

    asked on February 24, 2011
  81. Algebra Help

    Write the equation of a perpendicular bisector of the segment joining the points: (7,2) and (3,0). Okay, so I don't even know what a bisector is. Is there a formula for this or something? If some could someone tell me it. Or tell me the process.

    asked on August 26, 2010
  82. General Chemistry

    3.71 When potassium cyanide (KCN) reacts with acids, a deadly poisonous gas, hydrogen cyanide (HCN), is given off. Here is the equation: KCN(aq) + HCl(aq) -> KCl(aq) + HCN(g) If a sample of 0.140 grams of KCN is treated with an excess of HCl, calculate the

    asked on May 24, 2010
  83. math

    in order to achieve from aerobic exercise, one should maintain one's heart rate at a certain level. A fourty year old women with a reating heart beat of 80 beats per minue should keep her heart rate between 140 and 160 beats per minute while exercising.

    asked on March 18, 2010
  84. Medical Terminology

    devise memory aids for any five terms relating to the musculoskeletal system

    asked on February 19, 2009
  85. spanish

    the daughter of sister is my

    asked on January 28, 2009
  86. algebra 2

    the sum of 3 consecutive intergers is 90. find the largest interger if x is the smallest interger

    asked on April 14, 2017
  87. Polynomials and quadratic application

    Suppose I want a garden with 400 square feet. Write an equation that can be used to find the values for x that will result in that area.

    asked on April 28, 2012
  88. chemistry

    0.82g of an unknown gass is at 30 degrees C in 3L container at a pressure of 15.9psi. What is the molecular weight of the unknown gas?

    asked on April 26, 2012
  89. College Personal Finance

    Annual interest of 6.0% paid if balance exceeds $900, $12 monthly fee if account falls below minimum balance, average monthly balance $1,135, account falls below $900 during 2 months. Round the answer to the nearest cent.

    asked on February 6, 2012
  90. US HISTORY

    WHAT ARE EVENTS THAT INFLUENCED THE SECTIONAL CRISIS THAT LED TO CIVIL WAR?

    asked on July 11, 2011
  91. US HISTORY

    Why was there tension in slavery in the 1840's

    asked on July 11, 2011
  92. English-lord of the flies

    Give five present day examples of similar characteristics or situations present in the novel lord of the flies.

    asked on May 30, 2011
  93. Inequalities

    Shelby's test scores are 99, 91, and 85. If she must average at least 90 points to get an A in the class, what must she earn on the next test? Okay so this was my equation but it came out completely wrong. 99+91+85+x greater than or equal to 90 So what

    asked on September 9, 2010
  94. Math

    Okay, I just need the steps for simplifying this type of radical: 5 -- 3√2 thats all one problem. thanks!

    asked on September 8, 2010
  95. Algebra Help

    Okay, I just need the steps for simplifying this type of radical: 5 -- 3√2 thats all one problem. thanks!

    asked on September 8, 2010
  96. Genera Chemistry

    Balance the following equations: a. C + O2 CO b. CO + O2 CO2 c. H2 + Br2 HBr d. K + H2O KOH + H2 e. Mg + O2 MgO please explain and show work.

    asked on May 24, 2010
  97. critical thinking

    what is thinking

    asked on May 6, 2010
  98. physics

    Newton assumed that a gravitational force acts directly between Earth and the Moon. How does Einstein's view of the attractive force between the two bodies differ from Newton's view?

    asked on January 16, 2010
  99. home economics

    Can the snack itself be attractive?

    asked on April 19, 2009
  100. Science

    I'm trying to hypothesize what caused a fishkill. Is it possible that chemicals can raise the temperature of a river?, causing lower oxygen levels? This seems a bit far-fetched, but I'm wondering if this could happen. Thank you.

    asked on March 22, 2009

Pages

  1. 1
  2. 2