Most popular questions and responses by student
  1. Language Art

    1.)In "The Drummer Boy Of Shiloh", what does the general call the drummer boy? A.)The BRAINS OF THE ARMY b.)The Heart Of The Army C.)The Backbone of the army D.)The PRIDE OF THE ARMY

    asked on September 30, 2015
  2. calculus

    The point P(4, −2)lies on the curve y = 2/(3 − x). (a) If Q is the point(x, 2/(3 − x)),use your calculator to find the slope mPQ of the secant line PQ (correct to six decimal places) for the following values of x. 1) 3.9 mPQ= 2) 3.99 mPQ= 3)3.999

    asked on August 28, 2012
  3. ~*Math Probability*~

    Which expression would you use to figure out the number of ways you can arrange the letters in the word equation? (1 point) 8! 8P4 4P8 4! Five friends are having their picture taken. How many ways can the photographer arrange the friends in a row? (1

    asked on March 13, 2013
  4. Social Studies

    1. Which concept did the Maya understand before Europeans did? Architecture Calendars Hieroglyphics The number zero** 2. Which of the following BEST explains how the Mayans adapted their environment? The Mayans developed a nomadic lifestyle to hunt for

    asked on December 6, 2018
  5. Chemistry Equilibrium

    Which of the following conditions is always true at equilibrium? deltaG=0, Q=1, K=1, deltaG=deltaG(standard), deltaG(standard)=0, Q=0, deltaG(standard)=1 I'm so confused, please help!

    asked on March 14, 2013
  6. Chemistry

    What is the limiting reactant is if 0.5gAl is reacted with 3.5gCuCl2? 2Al(s)+3CuCl2(aq) --> 3Cu(s)+2AlCl3(aq)

    asked on March 21, 2017
  7. Calculus

    he table below shows the temperature (in °F) t hours after midnight in Phoenix on March 15. The table shows values of this function recorded every two hours. (10 points) a. Estimate the value of T'(8). Give units in your answer. b. What is the meaning of

    asked on December 8, 2017
  8. physics

    A rock is thrown vertically upward with a speed of 14.0 m/s from the roof of a building that is 50.0 m above the ground. Assume free fall. In how many seconds after being thrown does the rock strike the ground? in s What is the speed of the rock just

    asked on September 5, 2011
  9. Math

    A bag contains tiles with the letters -C-O-M-B-I-N-A-T-I-O-N-S. Lee chooses a tile without looking and doesn't replace it. He chooses a second tile without looking. What is the probability that he will choose the letter O both times? A) 1/132 B) 1/72 C)

    asked on May 28, 2015
  10. Chemistry-Dr.Bob

    The solubility of CO2 in water at 25 degrees Celsius and P CO2= 1 atm is 0.034 mol/L. What is its water solubility under normal atmospheric conditions (in air, carbon dioxide is about 380 ppmv assuming that CO2 obeys Henry's Law?

    asked on February 13, 2016

    i have a tritation lab due tomorrow and i am stumped on a couple things. its a titration lab using sodium hydroxide (NaOH)- 250 mL 0.300 M concentration, 10 mL of an unknown substance of vinegar, the avg. of titrated NaOH in the flask with vinegar is 27.7

    asked on December 14, 2008
  12. Math

    Match/Choose the math sentences that count up and back by tens. 47+40=88 57+30=87 46+10=56 56-10=46 87-40=47 87-30=57 Write the matching math sentences.

    asked on May 18, 2016
  13. History

    which of the following best describes daily life in the south during the civil war? a.about the same as before the war because factories provided necessities b.difficult but tolerable because most people did not experience major changes c.better because

    asked on February 4, 2015
  14. Math Homework

    1) Given the side of a square pyramid is 6cm and the altitude is 4cm calculate the surface area. 2) Given the side of a square pyramid is 12cm and the altitude is 8cm calculate the surface area. 3) Given the side of a square pyramid is 18cm and the

    asked on February 6, 2007
  15. Art Please Ms.Sue Help

    1.How do landscape paintings convey the values and ideas of Chinese culture? A.Landscape paintings show chaotic, unhappy culture. B.Landscape paintings reveal the importance of natural history to the Chinese. C.Landscape paintings show that Chinese desire

    asked on March 11, 2016
  16. science

    1. Which of the inner planets has an internal structure similar to Earth's and has the hottest surface of any planet in our solar system? 2. Which of the following statements about similarities among the inner planets is true? 3. How did planetesimals form

    asked on November 5, 2018
  17. Algebra 2

    Use technology or a z-distribution table to find the indicated area. The weights of grapefruits in a bin are normally distributed with a mean of 261 grams and a standard deviation of 9.4 grams. Approximately 20% of the grapefruits weigh less than which

    asked on March 20, 2019
  18. chemistry help!

    Potassium nitrate has a lattice energy of -163.8 kcal/mol and a heat of hydration of -155.5 kcal/mol. How much potassium nitrate has to dissolve in water to absorb 105 kJ of heat?

    asked on September 19, 2012
  19. Chemistry

    A reaction in which X and Y form products was found to be second order in X and first order in Y. By what factor will the rate of the reaction change if [X] is doubled and [Y] is tripled? a. 10 b. 12 c. 20 d. 2

    asked on February 19, 2015
  20. Social Studies HELP

    4. How does Abigail Adams use the ideas of the patriots to support her cause?

    asked on October 19, 2016
  21. Art

    Which two cultures use creatures to protect or transport humans after death? A. America (bald eagle) and Spain (Bull) B. Egypt (the animal-headed sons of Horus) and China (the dragon) C. Egypt (the jackal) and China (the lion) D. Mayans (the crow) and

    asked on March 18, 2015
  22. Statistics

    A confidence interval was used to estimate the proportion of statistics students that are females. A random sample of 72 statistics students generated the following 90% confidence interval: (0.438, 0.642). Based on the interval above, is the population

    asked on August 11, 2008
  23. Chemistry

    A solution containing equal masses of glycerol, C3H8O3, and water has a density of 1.10 g/mL. Calculate the molality of glycerol. I got 11.9 m.

    asked on February 14, 2016
  24. Chemistry

    The pH of a 0.0050 M aqueous solution of calcium hydroxide is? Make sure to include all equations.

    asked on December 3, 2010
  25. Social Studies

    12. Which of the following excerpts is a grievance of the American colonists that was included in Declaration of Independence?

    asked on October 20, 2016
  26. Algebra

    I have a word problem here. A batter hits a fly ball. A scout in the stands makes the following observations. Time (in secs) .75, 1.5, 2, 2.75, 3.25, and 4.75 Height (in feet) 77, 133, 160, 187, 194, and 169 1.What type of function best models this data?

    asked on February 28, 2014
  27. geometry

    Create a wrapping paper design that includes at least four of the following constructions: a bisected angle a perpendicular line drawn from a point not on a line to a line a perpendicular line drawn through a given point on a given line a quadrilateral

    asked on November 14, 2016
  28. chemistry

    Find the formula for the compound that contains 72.4% iron and 27.6% oxygen.

    asked on January 22, 2012
  29. Math

    The volume of a rectangular prism is 6x^3 -x^2 -2x. Which model could represent the rectangular prism? A. Height: 3x-2 Length: 2x+1 Width: x B. Height: 3x+2 Length: 2x-1 Width: x C. Height: 3x-2 Length: 2x-1 Width: x D. Height: 2x-2 Length: 3x+1 Width: x I

    asked on January 29, 2016
  30. algebra readiness

    Diedra saw a pole that was supported by a wire as shown. She calculated that the wire was 1625 feet long. Between which two numbers is the value of 1625 located? •16 and 17 •40 and 41 •400 and 410 •812 and 813 I need help from other connexus

    asked on January 22, 2019
  31. Algebra

    Complete the table for each function. 1. f(x) = √x The x values are 0, 1,4 and 9. The corresponding y values that I got are 0, 1, 2 and 3. 2. g(x) = -1/4√ x The x values are 0, 1, 4, and 9. The corresponding y values that I got are 0, -1/4, -1/2 and

    asked on March 11, 2014
  32. Chemistry

    H2(g) + I2(g) 2 HI(g) The forward reaction above is exothermic. At equilibrium, what happens if I2 is removed from the reaction mixture at constant temperature and volume? select all that apply 1.) Energy is absorbed 2.) Energy is released 3.) [H2]

    asked on May 19, 2018
  33. Social Studies

    7. What was the impact of the Olive Branch Petition?

    asked on October 20, 2016
  34. Language Art

    2.)Why does the author of "The Drummer Of Shiloh" say it is a "Solemn Night For a boy just turned fourteen"? A.)The wind is full of whispers B.)The Army is Camped near a church C.)The boy will be his 1st battle soon D.)The boy does not like sleeping in a

    asked on September 30, 2015
  35. Math

    Mia goes for a jog every morning. The line plot shows the number of hours she jogged for five days. 2/4=xx 3/4=xx 1=x Number of hours How many total hours did she jog for those five days? possible answer: 5/4; 10/4; 11/4; 14/4 hours.

    asked on April 20, 2019
  36. Physics

    An object, initially at rest, is subject to an acceleration if 34 m/s^2. how long will it take for that object to travel 3400m

    asked on October 5, 2016
  37. Math

    Match the math sentences that count up and back by tens. 47+40=88 57+30=87 46+10=56 56-10=46 87-40=47 87-30=57 Write the matching math sentences.

    asked on May 18, 2016
  38. precal

    A pile driver pounds a steel column into the ground. On the first drive, the column is pounded 1.65 metres into the ground, and on each successive drive it moves 80% as far as it did on the previous drive. The least number of drives required to drive the

    asked on October 14, 2012
  39. chemistry

    Which of the following is considered a Lewis acid or a Lewis base. I- H2O BCl3 NH3 OH- H+ CO2 SO2

    asked on July 16, 2010

    A ball of mass m at rest at the coordinate origin exploded into three equal pieces. At a certain instant, one piece is on the x-axis at x=40cm, and another is at x=20cm, y= -60 cm. Where is the third piece at that instant.

    asked on April 8, 2010
  41. CHEM HELP!

    NH4HSNH3+H2S What is the minimum mass of NH4HS that must be added to the 5.00-L flask when charged with the 0.300g of pure H2S, at 25C to achieve equilibrium?? Kp=.120 at 25C initial pressure of H2S in flask = .0431atm partial pressures of H2S and NH3

    asked on March 12, 2012
  42. Algebra

    In triangle ABC, the measure of angle B is 8 degrees more than three times the measure of angle A. The measure of angle C is 37 degrees more than the measure of angle A. Find the measure of each angle. What is the measure of angle A__? What is the measure

    asked on February 18, 2014
  43. algebra 1

    Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2 and the profit on every wrap is $3. Sal made a profit of $1,470 from lunch specials last month. The equation 2x + 3y = 1,470 represents Sal's

    asked on November 17, 2018
  44. World History

    Analyze how the growth of the market economy contributed to the decline of medieval europe

    asked on October 17, 2017
  45. chemistry-buffer

    Buffer question: If I add 3 mL of 1 M NaOH to a buffered solution, will I still have a valid buffer?

    asked on February 4, 2008
  46. Circuits 2

    A coil of 50 ohm resistance and of 150mH inductance is connected in parallel with a capacitor 50microF. The source voltage is 100 sin(wt+30). What is the equation line current.

    asked on March 12, 2018
  47. Algebra

    What compound inequality represents the phrase "all real numbers that are greater than or equal to 0 and less than 8"

    asked on December 21, 2015
  48. chemistry

    You react chemical A with chemical B to make one product. It takes 100 grams of chemical A to react completely with 20 grams of chemical B. What is true about the chemical properties of the product? a. the properties are more like those of chemical A b.

    asked on February 13, 2012
  49. Circuits 2

    a coil has resistance of 50 ohms and reactance of 70 ohm's. a capacitor is connected in parallel to produce resonance. the source is 120v. what is the power drawn by the circuit ?

    asked on March 25, 2018
  50. finance

    Can someone please help me with the following question. I am not sure even where to start. A 5-year annuity of 10 $9,000 seminannual payments will begin 9 years from now, with the first payment coming 9.5 years from now. If the discount rate is 11 percent

    asked on February 24, 2008
  51. Geography

    which of the following statements best characteristics the english colony of roanoke? A B C D

    asked on October 11, 2017
  52. Stats

    A bank with a branch located in a commercial district of a city has developed an improved process for serving customers during the noon-to-1 p.m. lunch period. The waiting time (operationally defined as the time elapsed from when the customer enters the

    asked on August 13, 2008
  53. Alg 2

    Find A1 in a geometric series for which Sn=210, r=-2, and n=6? Can someone lead me in the right direction?

    asked on December 12, 2010
  54. Physics

    A car is initailly travelling at 50.0km/h. The brakes are applied and the car stops over a 35m distance. What was magnitude of the car's acceleraion while it was braking? I don't know what formula to use.

    asked on April 21, 2015
  55. Math/Algebra

    A bridge is built in the shape of a semi elliptical arch. It has a span of 96 feet. The height of the arch 29 feet from the center is to be 10 feet. Find the height of the arch at its center.

    asked on May 28, 2013
  56. physics

    soo for physics, we did a lab where we launched a cart on a track on the floor and recorded time, distance, etc. to figure out things. one of the questions on the lab is: can you think of a simple follow-up experiment that would allow you to determine how

    asked on October 6, 2009
  57. Math

    A system of equations is shown below: x + y = 3 2x − y = 6 The x-coordinate of the solution to this system of equations is _____. I'm thinking it could be X=3

    asked on December 11, 2015
  58. Algebra

    1. How far is the Willis Tower from Navy Pier, given that each unit is approximately 1/8 mile? Round your answer to the nearest tenth of a mile. The Willis Tower is at the point (-6,-3) and NP is at the point (10,9). I did this calculation: d^2 = (10 -

    asked on March 13, 2014
  59. Dynamics

    A 70-g ball B dropped from a height h_0=1.5 m reaches a height h_2=0.25 m after bouncing twice from identical 210-g plates. Plate A rests directly on hard ground, while plate C rests on a foam-rubber mat. Determine (a) the coefficient of restitution

    asked on December 6, 2018
  60. Chemistry

    why are the orbitals of the hydrogen atom described as probability maps? Why are the edges of the hydrogen orbitals sometimes drawn to appear "fuzzy"?

    asked on March 25, 2010
  61. Civics

    Leaders from several states of a nation meet once a year to settle common issues. They govern their own states independently, but they work together on issues that affect them all like trade and defense. They do not have a central government that handles

    asked on April 28, 2015
  62. chemistry help!!!!!

    Consider the following reaction: Find the equilibrium partial pressures of A and B for each of the following different values of Kp. Assume that the initial partial pressure of B in each case is 1.0 atm, and that the initial partial pressure of A is 0.0

    asked on March 11, 2012
  63. math , correction

    #1 A menu offers a choice of 3 salads, 8 main dishes, and 5 desserts. How many different meals consisting of one salad, one main dish, and one dessert are possible? My answer: 120 mealks possible #2 An uto mobile manufacturerr produces 7 models, each

    asked on July 6, 2007
  64. Psychology

    Please provide me some points to write an essay on a case. Alexis had often wished that she could understand herself better. But the fight with her boyfriend the previous night really made her wonder what was driving her behaviour. For no reason at all,

    asked on April 1, 2017
  65. Physics

    A rabbit can cover a distance of 80 m in 5 s. What is the speed of the rabbit?

    asked on September 8, 2016
  66. Math, pre-algebra

    The volume of a rectangular prism is 6x^3 -x^2 -2x. Which model could represent the rectangular prism? A. Height: 3x-2 Length: 2x+1 Width: x B. Height: 3x+2 Length: 2x-1 Width: x C. Height: 3x-2 Length: 2x-1 Width: x D. Height: 2x-2 Length: 3x+1 Width: x I

    asked on January 29, 2016
  67. statistics help

    The branch manager of an outlet (Store 1) of a nationwide chain of pet supply stores wants to study characteristics of her customers. In particular, she decides to focus on two variables: the amount of money spent by customers and whether the customers own

    asked on July 28, 2008
  68. Civics

    Which best describes how the money that individuals have in savings accounts affects the economy? A. The money in savings accounts is used for daily expenses like food and gas which keep the economy going. B. The money in savings accounts just sits in the

    asked on April 16, 2015
  69. Math

    Can somone help me with this word problem....thanks The cut-right company sells sets of kitchen knives. The basic set consists of 2 utility knives, 1 chef's knife. The Regular set consists of 2 utility knives, 1 chef's knife, and 1 slices.The deluxe set

    asked on June 14, 2007
  70. Chemistry

    A first-order reaction has a half-life of 26.4 seconds. How long does it take for the concentration of the reactant in the reaction to fall to one-eighth of its initial value?

    asked on February 14, 2016
  71. math117

    The area of a rectangle of length x is given by 3x2 +5x. Find the width of the rectangle. The area of a rectangle with width t is given by 33t - t 2. Factor the expression and determine the length of the rectangle in terms of t length times width=area, so

    asked on July 2, 2007
  72. Algebra

    I need help with this portfolio and I was wondering if someone could help me understand it. Task 1 Volume and surface area are often compared by manufacturers in order to maximize how much of something can go inside of a package (volume) while keeping how

    asked on May 8, 2018
  73. social study's

    The introduction of maize most likely contributed to which major Native American cultural shift? A) the creation of large earthworks B) the gradual end of the nomadic lifestyle C) the growth of the hunter-gatherer culture D) the depletion of large game

    asked on October 25, 2016
  74. Math, science

    in 2009 an earthquake of magnitude 6.7 shook the kermadec islands off the coast of new zealand. also in 2009 an earthquake of magnitude 5.1 occured in the alaska peninsula. How many times stronger was the kermadec earthquake. Use formula log (I1/I2)=m1-m2

    asked on April 9, 2016
  75. Civics

    Which best describes how patent law encourages market competition? A. It protects peoples ideas B. It protects companies copyrights C. It protects companies from forming trust D. It protects companies from price-fixing I think that the answer is A.

    asked on April 16, 2015
  76. english

    I need help in writing a detailed paragraph contrasting these two stories "Gumption" and "To build a fire" and how their structures influence meaning.

    asked on November 19, 2016
  77. Art Please Ms.Sue

    Which two cultures use creatures to protect or transport humans after death? America (bald eagle) and Spain (bull) Egypt (the animal-headed sons of Horus) and China (the dragon)***** Egypt (the jackal) and China (the lion) Mayans (the crow) and Greeks (the

    asked on March 11, 2016
  78. Physics

    A person looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 8.2 m/s relative to the ground. When the train moves at a constant velocity, the raindrops make an angle of 62° when they move past the

    asked on September 3, 2007
  79. Art

    Chinese artists often express their philosophies using calligraphy. Which is the best definition of philosophy? A. a complex idea B. a religion C. a way of practicing creativity D. a system of guiding principles I think its C. Please answer as soon as

    asked on March 18, 2015
  80. math,correction

    can someone correct these for me thanks.. Problem #4 Find the effective rate corresponding to the given nominal 18% compounded quarterly. My answer: 19.2% Problem #7 Find the future value of the ordinary annuity If R= $2500,I=5% interest compounded

    asked on June 29, 2007
  81. Physics

    A ball thrown horizontally at 22.76 m/s travels a horizontal distance of 46.81 m before hitting the ground. From what height was the ball thrown?

    asked on January 21, 2013
  82. Chemistry

    The reaction of CH4 in 2CH4(g) ---->/

    asked on February 28, 2016
  83. Algebra

    (8x)^6/(8x)^10 how do I simplify this? I got the answer 1/4096x^4 but i'm unsure if it is correct.

    asked on September 23, 2019
  84. Data Management (Math)

    A Canadian postal code uses six characters. The first, third, and fifth are letters, while the second, fourth, and sixth are digits. A U.S.A zip code contains five characters, all digits. How many codes are possible for each country?

    asked on June 19, 2011
  85. 11th grade

    The arch of a bridge is a semi ellipse, the span is thirty feet and the top of the arch is ten feet above the major axis. the roadway is horizontal and is two feet above the arch. find the vertical distance from the roadway to the arch at five feet

    asked on September 28, 2008
  86. Chemistry

    Baking soda is sodium bicarbonate (NaHCO3). When you heat baking soda, it breaks down into sodium carbonate powder (Na2CO3), water vapor, and carbon dioxide. The enthalpy of this reaction is 129 kJ. Write a correct thermochemical equation for this

    asked on April 18, 2019
  87. Economics

    A man wishes to bequeath to his daughter P20,000 ten years from now. What amount should he invest now if it will earn interest of 8% compounded annually during the first 5 years and 12% compounded quarterly during the next 5 years?

    asked on June 24, 2018
  88. CIRCUITS 2

    Two relays each with 20 ohms resistance and 0.16 henry inductance are connected in series. What is the equivalent impedance?

    asked on February 12, 2018
  89. Algebra

    Simplify the expression, if possible. State the excluded values, if any. 1. 5x - 5/ 10x^2 - 25x + 15 2. w^2 + 6w + 9/ 2w^2 - 18 Thanks so much.

    asked on March 21, 2014
  90. Civics

    Which best describes how the money that individuals have in savings accounts affects the economy? A. The money in savings accounts is used for daily expenses like food and gas which keep the economy going. B. The money in savings accounts just sits in the

    asked on April 17, 2015
  91. Chemistry

    I got 1.11 x 10^-6 for K. Here is my work: x= 0.004 -2x= -0.008 (change for CH4) Equilibrium for CH4 is 0.087 - 0.008= 0.079 Change in eq for C2H2 is 0.004 and eq is 0.004 (=x) Change in eq for H2 is 0.012 Eq for H2 is 0.012 K= [C2H2][H2]^3/[CH4]^2 K=

    asked on February 29, 2016
  92. U.S History

    Which of these describes the location of the Gulf of Mexico? (5 points) South of West Florida East of East Florida*** West of New Orleans South of Great Britain 4. © 2012 The Exploration Company What can you infer about what Lewis and Clark saw as they

    asked on January 5, 2016
  93. physics help

    a fireman D=50 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of 30 degrees above the horizontal. If the speed of the stream as it leaves the hose is 40.0 m/s at what height will the stream of water

    asked on October 2, 2011
  94. Chemistry

    If an electric discharge produces 300 liters of ozone (O3), how many liters of oxygen (O2) are required? 3O2->2O3

    asked on January 21, 2018
  95. Physics

    An object is shot upwards, from the ground, with an initial velocity of 120 m/s. How high will it be after 4.0s?

    asked on October 5, 2016
  96. Poetry/British Literature/12th grade

    Which of the following poems is a dramatic monologue? (A) "My Last Duchess" (B) "Love Among the Ruins" (C) Childe Roland to the Dark Tower Came (D) all of these

    asked on August 27, 2013
  97. Technology

    What does cyber bullying mean? How can you stop cyber bullying?

    asked on March 27, 2019
  98. English

    In "Two Kinds," what motivates Jing-Mei to keep silent about her performance at the piano recital, never discussing the recital with her mother? a. She fears her mother feels betrayed by her failure. b. She thinks her mother will become angry if she

    asked on September 18, 2017
  99. Corporate Finance

    Suppose you have been hired as a financial consultant to Defense Electronics, Inc. (DEI), a large, publicly traded firm that is the market share leader in radar detection systems (RDSs). The company is looking at setting up a manufacturing plant overseas

    asked on March 14, 2015
  100. civics

    Which of the following businesses would prefer a weak U.S. dollar to a strong one? A. A Saudi Arabian company that exports oil to the United States B. An American company that imports clothing from Italy C. A Turkish company that imports microchips from

    asked on May 29, 2015


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