Questions Asked on
April 3, 2015

  1. chemistry

    If a solution is made 0.080 M in Mg(NO3)2, 0.075 M in aqueous ammonia, and 3.5 M in NH4NO3, will Mg(OH)2 precipitate? What is the pH of this solution?

    asked by Anonymous
  2. Art

    This painting is called "Girl in a Southern German Folk Costume" 1. How did the designers of this German folk dress use the principles of art? A. The designer repeats colors throughout the apron to create unity B. The designer uses different colors to

    asked by Anonymous
  3. Cara-Chem

    I made a bobo, which may lead to some confusion. Here is my post revised: You don't need it. Just calculate the new molarity of the acid after addition of NaOH, and then determine the molarity of the acid in solution. How many moles of propionic acid are

    asked by Devron
  4. calculus

    A rectangular area is to be enclosed and divided into thirds. The family has $400 to spend for the fencing material. The outside fence costs $10 per running foot installed, and the dividers cost $20 per running foot installed. What are the dimensions that

    asked by Anonymous
  5. physics

    A projectile is given an initial velocity of (i + 2j) m/s, where i is along the ground and j is along the vertical. If g = 10 m/s2, the equation of its trajectory is:

    asked by sai bhargav
  6. math

    A gallon of water weight 8,3 kg. A cubic foot of water weight about 62 Kg. How many gallons of water would fill a cubic foot container ? My answer is 62/8,3 = 7,46 gallons. Is it right ?? Please, help my son.

    asked by Iman
  7. algebra

    A radioactive substance decays according to the formula A=A0e^kt where A0 is the initial amount of substance (in grams) A is the amount of substance(in grams) after t years k is a constant The half-life of the substance is 10 years.If we begin with 20g of

    asked by enhle
  8. math

    How to solve this? 1 / x * 5 / 13 = 5 / 286

    asked by Priyanka
  9. PHYSICS

    A solid ball with a mass m = 0.53 kg floats in a tank of water. The ball is made of material with a density of 400 kg/m3 . The density of water is 1000 kg/m3 . What fraction of the volume of the ball is below the waterline?

    asked by MONSOFT
  10. PHYSICS

    A slab of wood with mass m = 1.7 kg floats 78% submerged.The density of water is 1000 kg/m3 . What is the density of the wood?

    asked by MONSOFT
  11. electromagnetism

    a line of charge staarts at x=+×and extends to positive infinity. If the liner charge density is lamdanot X not over X determine the electric field at the origin.

    asked by abdulhayi musa
  12. electromagnetism

    proof formula for charge line disk and ring in both electric field and potential

    asked by abdulhayi musa
  13. ENGLISH

    Does this sentence make sense? For Amber volunteering instilled the desire to use her time more productively and simultaneously make a difference in the community.

    asked by Jen
  14. 6th Grade Math Help

    Hi, I really need help. The question is find the area of the parallelogram which is not drawn to scale. I think the base is 24 cm, the height 9 cm, and the left side that's kind of cut slanted is 8 cm. Please help! Thanks!

    asked by MusicLover14
  15. Social Studies

    HELP MS. SUE!!! 1. Nearly every village in mexico has a church and a market. The city's public square where the market is held is called a a. quatro b. plaza c. casa. d. squatter.** 2. To what country does Mexico export the most goods? a. Germany b. Canada

    asked by Amanda
  16. Algebra

    Need help solving the system of inequalities and equations graphically for this problem. Please help! 6y=9(x-6) 3(2y+5x)=-6

    asked by George
  17. chemistry

    How many grams of solid ammonium chloride should be added to 1.50 L of a 0.224 M ammonia solution to prepare a buffer with a pH of 8.720 ?

    asked by Zach
  18. programming

    A. Write a program which reads an array of up to 200 integers from input and then does all the following in order 1. searches the array for a specific integer given by the user and outputs its position in the array; 2. outputs the largest element in the

    asked by pauline
  19. Chemistry

    Instead of using ratios for back titrations we can also use molarities if our solutions are standardized. A 0.188g sample of antacid containing an unknown amount of triprotic base Al(OH)3 was reacted with 25.0mL of 0.101M HCl. The resulting solution was

    asked by Caroline
  20. Math

    Find the coordinates of the image of point R(3, -5) rotated 180 about the origin. I think the answer is (-5,-3)

    asked by Lost
  21. 6th Grade Math ASAP!!!

    Hi, I really need help!! I got a complex figure. The figure looks like the letter E. Just take out the middle line and that's my figure. Its base is 69 m, its height is 31 m, it's middle has 12 m, and 23 m.

    asked by MusicLover14
  22. Math

    If I know all 3 angles of a right triangle and the hypotenuse how do I figure out the short side length of the triangle?

    asked by Steve
  23. Calculus

    List x1, x2, x3, x4 where xi is the right endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 3 and x = 5. 3, 3.5, 4, 4.5 3, 3.2, 4.6, 5 3.5, 4, 4.5, 5 3.25, 3.75, 4.25, 4.75 my answer was a because i kept

    asked by bob
  24. math

    i am number between 35 and 45 i am completely divisible by 13 find the number

    asked by yash
  25. Maths

    Here is a list of what you need to make 20 buns: - 100g butter - 150g flour - 200g sugar - 4 eggs Work out what you need to make 30 buns Please help. Thank you x

    asked by anonymous
  26. physics

    An undersea research chamber is spherical with an external diameter of 5.30m . The mass of the chamber, when occupied, is 78500kg . It is anchored to the sea bottom by a cable. The density of seawater is 1025 kg/m3. a) What is the buoyant force on the

    asked by hadiatou
  27. chemistry

    Given the equation Ag^+(aq) + 2NH3 (aq) -> [Ag(NH3)2]^+ (aq) kf= 2 x 10^7 determine the concentration of NH3(aq) that is required to dissolve 415 mg of AgCl(s) in 100.0 mL of solution. The Ksp of AgCl is 1.77× 10–10.

    asked by jerome
  28. chemistry

    Hello! I am struggling a bit with this problem A gas sample occupies 51.6 L at a pressure of 0.841 atm and 39.6 ºC. What is the amount of gas (mol) in this sample?

    asked by Samantha
  29. chemistry

    Estimate the pH of the solution that results when this added to 50 mL of 0.275 M Na2HPO4(aq) - 50 mL of 0.275 M HCl(aq)

    asked by tevon
  30. Statistics

    If the average home cost $100,000, with a standard deviation of $15,000, what would a home on the 20th percentile rank cost?

    asked by Jan
  31. Physics

    Hi, I've been stuck on this for days! I'd love if I can get some help. Two unfortunate climbers, roped together, are sliding freely down an icy mountainside. The upper climber (mass 80kg ) is on a slope at 16∘ to the horizontal, but the lower climber

    asked by Tommy
  32. Math - Help Please

    Stereo Inc. sells a stereo system for $300 down and monthly payments of $40 for the next 2 years. If the interest rate is 3.25% per month, find: a) The cost of the stereo. b) The total amount of interest paid. I am having trouble figuring out the correct

    asked by Kris
  33. chemistry

    A 50.0 mL sample of 0.50 M HBr is titrated with 0.25 M KOH. What is the pH after the addition of 60.0 mL of KOH? A) 4.1 B) 13.4 C) 1.7 D) 2.0 E) 7.7 I'm confused on the process of solving this problem. My work so far: .050L X .50 mol/1L= .025 mol HBR .060L

    asked by billy
  34. math

    Brandon bought his car for $800 and sold it later for $1000 after a week. How much % profit did he make?

    asked by Lakshmi
  35. Civics

    The _______ form of city government merges executive and legislative functions in a single group of officials.  A. township B. commission C. mayor-council D. city manager C?

    asked by Sarah
  36. math

    Sort these fractions in increasing order 1 5 7 3 __ __ __ __ 2 8 8 4

    asked by Lakshmi
  37. m ath

    2power of -2 how much

    asked by Lakshmi
  38. math

    Which of the following fraction is greatest? 3 2 1 4 __ __ __ __ 7 5 4 9 please show me

    asked by Lakshmi
  39. Civics

    6.   If both the president and the vice president are unable to fulfill their duties, who takes over as president?  A. President pro tempore of the Senate B. Attorney general C. Speaker of the House D. Secretary of state "In the case that the

    asked by Sarah
  40. age question

    A man is 24 years when his son was born. Now he is three times as old as his son. Find the age of the son.

    asked by daniel
  41. Geometry

    AB (with an arrow over AB I can't past the arrow so yeah) passes through A(-3, 0) and B(-6, 5). What is the equation of the line that passes through the origin and is parallel to AB? (with an arrow over it again) a)5x – 3y = 0 b)-x + 3y = 0 c)-5x – 3y

    asked by Emily
  42. Bus 101

    Which of the following represents the basic accounting equation

    asked by Jan
  43. Math

    the box and whisker plot show data for the test scores of four groups of students in the same class. which plot represents a group with a median grade below 65? (Posting plots in comments) I was thinking its A, but i'm not sure.

    asked by Jason
  44. science

    I have a science experiment and I'm not sure how to do this or have all the materials to do it can anyone help? For this portfolio, you will design an experiment to investigate the relationship between the number of coil loops and a strength of a solenoid.

    asked by Amber
  45. Math

    a 6,000 seat theater has tickets for sale at $26 and $40 . How many tickets must be sold at each price for a sell out performance to generate a revenue of $190500?

    asked by Tiffany
  46. Chemistry

    Can someone help me with this question? Calculate the work for each of the following processes beginning with a gas sample in a piston assembly with T=305 K, P=1.79 atm, and V=4.29 (a) irreversible expensing against a constant external pressure of 1.00 atm

    asked by Anonymous
  47. M ath

    Sally has a sum of $26000 that she invests at 9% compounded monthly. What equal monthly payments can she receive over a period of a) 9 years? b) 7 years?

    asked by Justin
  48. math

    Mrs. Hart, at age 65, can expect to live for 25 years. If she can invest at 5% per annum compounded monthly, how much does she need now to guarantee herself $900 every month for the next 25 years?

    asked by Judy
  49. math

    a class wanted to cover part of their wall with beatiful tiles, the tiles are square ,one foot on each side ,if the wall to be covered is in the shape of a 10 foot by 12 foot rectangle ,how many tiles will be needed to cover the wall ?

    asked by thania
  50. PHYSICS

    An object of mass M is divided into two parts ,which are placed at distance d.if gravitational force of attraction is maximum between parts,then find the ratio of mass of both parts

    asked by Tanya
  51. math

    miss guy is going to build a pen for her puppy. she has 50 feet of fencing to use. figure out some ways she can set up the pen and use all fencing. what are the dimension of the rectangular pen with the most space area for the puppy?

    asked by thania
  52. Civics

    8.   In addition to replacing the president if necessary, it's the duty of the vice president to  A. serve as Speaker of the House. B. preside over the Senate. C. review laws before the president signs them. D. serve as liaison to the judicial

    asked by Sarah
  53. Math

    Zach's book weight 1.32Kg what is the mass in grams of his book

    asked by Student
  54. Physics

    A disk starts at rest and accelerates with a constant angular acceleration α. After the disk completes one complete revolution, what is its angular velocity? ang.acc. = (ang.v. squared) / angle w = sqrt(angle x ang.acc.) = sqrt (2pi x ang.acc) However,

    asked by Liina
  55. Algebra

    Esth had five times as many cards as Rich. Esth gave 1/4 of her cards to Rich. Rich. gave 1/6 of his cards to Esth in return. In the end, Esth had 90 cards more than Rich. How many cards did Esth have at first?

    asked by Algebra
  56. chemistry

    How many particles are there in a mole of nitrogen dioxide molecules? How many total atoms are there in a mole of nitrogen dioxide molecules?How many nitrogen atoms? How many oxygen atoms?

    asked by yo
  57. math

    how do you write a system of equation that is linear ? can this two equation work? 2x – 3y = –2 4x + y = 24

    asked by TD
  58. English

    Would guys be able to help figure me figure out a citation that am having a hard time with?

    asked by m
  59. Math

    Describe how to find the range of a set of data.

    asked by Amber
  60. Math

    1) What is the mean of the set of the following data? 9,7,14,11,14,15,14 A)12 B)13 C)14 D)15 2)What is the median of the following data set? 9,7,14,11,14,15,14 A)7 B)9 C)11 D)14

    asked by Amber
  61. History :)

    Can someone help with this one please? Select one reform movement from the Progressive Era. Describe the movement and its impact on South Carolina. Provide details and examples that support how this movement changed South Carolina. Websites and examples

    asked by Martin
  62. math- please help me

    Stereo Inc. sells a stereo system for $300 down and monthly payments of $40 for the next 2 years. If the interest rate is 3.25% per month, find: a) The cost of the stereo. b) The total amount of interest paid. I am having trouble figuring out the correct

    asked by Kris
  63. Math

    Mrs. Hart, at age 65, can expect to live for 25 years. If she can invest at 5% per annum compounded monthly, how much does she need now to guarantee herself $900 every month for the next 25 years? math - Reiny, Friday, April 3, 2015 at 3:05pm Present Value

    asked by Judy
  64. Tech

    Which of the following does not qualify as intellectual property? a)a poem that you write*** b)a CD your friend bought that you borrowed c)a story that you wrote based on a book you read d)an idea that you cam up with*** is it a or d, please explain

    asked by Kennabug
  65. history

    Can you edit my editorial for grammar punctuation, spelling etc? Samantha Witkowski CHC 2D Mrs. Buyers April, 4, 2015 Aboriginal Opinion Editorial On going years of mistreatment to Aboriginals have been heavily weighed and debated amongst the Canadian

    asked by Samantha
  66. pre calculus

    the downhill ski club is organizing a ski trip. group tickets for the ski trip are priced at 20 for the first 100 skiers and a discount of 5.00 for each of the skiers over 100. a) write a formula to find the average cost of x skiers. b)write a formula to

    asked by syed
  67. Civics

    10.   In states, cities, and townships, traffic courts are courts of limited  A. appeal. B. jurisdiction. C. pleas. D. claims.  Sis and me thought it is jurisdiction. Are we correct?       

    asked by Sarah
  68. editing

    are there any websites to review and correct grammar spelling etc.?

    asked by ryleigh
  69. English

    Helllpppp!!! Mom struggling on "The Raven." Which of the following lines from "The Raven" best illustrates how the author's word choice impacts the mood and tone of the poem? A)"Once upon a midnight dreary, while I ponder, weak and weary." B) "Presently my

    asked by Kristine
  70. Geometry

    A pilot sees a guy at an angle of depression of 50 degrees. If the pilot is 200 degrees from the guy, how high is the pilot? Would it be sin(50) x 200?

    asked by Steve
  71. English

    “Active Learning.”University of Michagan this what I know for this writeteacher.

    asked by m
  72. math

    375Change 37.5% into lowest fraction I know 37.5/100 = 0.375 please help me

    asked by Lakshmi
  73. cda

    Socialization determines which _______ are triggered by which situation and how they play out in behaviors. A. cultural schemas B. attitudes C. emotions D. aspirations I choose B

    asked by Kaleisha
  74. cda

    The process by which we learn the ways of a given society or social group so that we can function within it is called A. social anxiety. B. socialization. C. socializing. D. social revolution. I choose C

    asked by Kaleisha
  75. Civics

    11.   One factor determining the number of representatives for a given congressional district is the distribution of _______ within the state.  A. jobs B. population C. wealth D. registered voters my sister and me are thinking to go with B. 

    asked by Sarah
  76. social studies

    Andrew Jackson's specie circular of 1836 stipulated that after August 15 only _______ would be accepted in payment for public lands. A. gold B. gold and silver C. special banknotes D. silver

    asked by Anonymous
  77. American History

    Which of the following directly led to the American Civil War? A. The Lecompton Constitution B. The secession of many Southern states from the union C. The decision in the Dred Scott v. Sandford case D. The election of Abraham Lincoln C?

    asked by Dave
  78. Geometry help

    if the volume of a rectangular prism is 420 cubic units what is its vilume if one dimension is halved a second dimension is reduced to one third its original length and a third dimension remains unchanged? How would I do this?

    asked by Hannah
  79. History

    What were three tactics of assimilation used on aboriginals?

    asked by sam
  80. Geometry

    A post tree outside of matts house casts a 12 foot shadow at a certain time of day. At the same time matt, who is 6 feet tall, casts a 2 foot shadow. How tall is the tree? How do I solve this? The marketing department of the company is considering making a

    asked by Hannah
  81. Civics to Ms.Sue

    Ms.Sue can you check my questions below I like when you check them and suggest what's best. I just need to finish this study guide so I can start studying on the right questions and not on the wrong ones.

    asked by Sarah
  82. American History

    American soldiers first faced guerilla tactics during which war? A. Philippine-American War B. World War II C. Vietnam War D. Korean War I believe its A

    asked by Dave
  83. present value

    An investment pays you $20,000 at the end of this year, and $10,000 at the end of each of the four following years. What is the present value (PV) of this investment, given that the interest rate is 4% per year?

    asked by valerie
  84. American History

    Which statement best describes the Monroe Doctrine? A. The United States welcomed European involvement in all issues in North America. B. The United States welcomed any European involvement in South America. C. The United States pledged to involve itself

    asked by Dave
  85. pre calculus

    the downhill ski club is organizing a ski trip. group tickets for the ski trip are priced at 20 for the first 100 skiers and a discount of 5.00 for each of the skiers over 100. a) write a formula to find the average cost of x skiers. b)write a formula to

    asked by syed
  86. math

    12.5 is 125% of a number. Fine the number?

    asked by Lakshmi
  87. chemistry

    determine the concentration of NH3(aq) that is required to dissolve 775 mg of AgCl(s) in 100.0 mL of solution. The Ksp of AgCl is 1.77× 10–10.] please help!!!!!!!

    asked by maggie
  88. Physics

    All of the following are advantages of using the services of an investment company except: A. professional management. B. diversification. C. ease in selling shares. D. insurance protection against loss of principal. D?

    asked by Ciaria
  89. Math - Help Me Please

    Stereo Inc. sells a stereo system for $300 down and monthly payments of $40 for the next 2 years. If the interest rate is 3.25% per month, find: a) The cost of the stereo. b) The total amount of interest paid. I am having trouble figuring out the correct

    asked by Kris
  90. Math

    While golfing, Sahar hits a tee shot from T toward a hole at H, but the ball veers 23 degrees and lands at B. The scorecard says that H is 270 m from T. If Sahar walks 160 m to the ball(B), how far, to the nearest metre, is the ball from the hole?

    asked by Rose
  91. physics

    Money managers: A. help people set up budgets to control personal spending. B. typically work for investment banks. C. are on the “sell side” of Wall Street. D. are on the “buy side” of Wall Street. B?

    asked by Ciaria
  92. physics

    A person needing help in planning a retirement program, setting aside educational funds, and deciding where and how much to invest could go to a: A. financial product company. B. financial planning firm. C. bank. D. All of the above organizations provide

    asked by Ciaria
  93. personal finance

    Which one of the following is not a financial intermediary? A. Security dealers B. Insurance companies C. Real estate investment trusts D. Pension funds D?

    asked by Ciaria
  94. math discrete

    Given function f(x)=4x3-5, g(x)=2x and h(x)=x2. Find composition of h◦(g◦f)

    asked by ijat
  95. math discrete 2

    Define g: R→R by the rule g(x)=4x-5 for all real number x. Find g-1(y)

    asked by ijat
  96. accounting

    rose wants to have 7,500 in 18 years how much rose should invest now at 8% interest

    asked by lina
  97. personal finance

    Money market funds usually offer all the following advantages except: A. higher returns than savings or checking accounts. B. deposit insurance. C. wire transfer privileges. D. check writing privileges. B?

    asked by Ciaria
  98. Civics

    12.   Which of the presidents listed below did not attain the presidency due to the death of a president?   A. John Tyler  B. Chester Arthur  C. Millard Fillmore  D. Gerald Ford   C?

    asked by Sarah
  99. personal finance

    PSI, a financial services consultant, estimates that over _____ million U.S. households have a net worth in excess of $1 million. A. 4 B. 5 C. 10 D. 20 D ?

    asked by Ciara
  100. chemistry ap

    Zinc reacts with 18.0 mL of 6.00 M cold, aqueous sulfuric acid through single replacement. a. How much zinc sulfate is produced? Answer in units of g

    asked by chem
  101. chemistry ap

    Assuming all volume measurements are made at the same temperature and pressure, what volume of hydrogen gas is needed to react completely with 3.25 L of oxygen gas to produce water vapor? Answer in units of L.

    asked by chem
  102. geometry

    The degree measures of the angles of triangle ABC are represented by 2x+8,x-8 and 2x-20,state the measure of each angle

    asked by Rick
  103. geometry

    Two sides of a triangle are 22 and 34.The length of the third side must be greater than ____ and less than ____.

    asked by Rick
  104. personal finance

    Future value calculations are also referred to as: A. discounting. B. add-on interest. C. compounding. D. simple interest. D?

    asked by Ciara
  105. Physics

    A stretched wire resonates in one loop. The midpoint of the wire oscillates with an amplitude of A. What is the traveled distance of the midpoint in one period? Please help me understand this relationship. Thank you very much!

    asked by Help2
  106. accounting

    rigoberto invests 8,000 at 6% interest, compound semiannually for 1 year

    asked by lina
  107. chemistry

    3.58 gram sample of an unknown gas is found to occupy a volume of 2.37 L at a pressure of 808 mm Hg and a temperature of 60 oC. What is the molecular weight?

    asked by Anonymous
  108. chemistry ap

    Nitric acid can be produced by the reaction of gaseous nitrogen dioxide with water. 3 NO2(g) + H2O(ℓ) −→ 2 HNO3(ℓ) + NO(g) If 734 L of NO2 gas react with water, what volume of NO gas will be produced? Assume the gases are measured under the same

    asked by chem
  109. chemistry ap

    20.0 L of methane (CH4) undergoes complete combustion at 0.961 atm and 20◦C. How much CO2 is formed? Answer in units of L.

    asked by chem
  110. chemistry

    Solid iron(III) hydroxide decomposes to produce iron(III) oxide and water vapor. 1.09 L of water vapor is produced at STP. How much iron(III) hydroxide was used? in g.

    asked by Anonymous
  111. chemistry ap

    Assume that 29.7 g of Al react with HCl according to the equation Al(s) + HCl(aq) −→ AlCl3(aq) + H2(g) at STP. How many moles of Al react? Remember to balance the equation first. Answer in units of mol. How many moles of H2 are produced? Answer in

    asked by chem
  112. Civics

    13.   The Brady Bill is related to gun control, and the Wagner Act is related to  A. due process. B. organized labor. C. civil rights. D. the right to privacy.  B?

    asked by Sarah
  113. Chemistry

    Hi, can you help with how to solve this equation? 50.0 gram sample of NaCl is added to water to create a 0.50 L solution. What volume of this solution is needed to create a 1.30 L solution that is 0.100 M NaCl? The choices provided: a) 152 mL b) 255 mL c)

    asked by Cassandra
  114. child development

    1. In a study examining preschoolers’ responses to their peers’ distress, researchers used _______ to record each instance in which a child cried, followed by other children’s reactions. 
A. time sampling
B. systematic collection C. event

    asked by younes
  115. Math

    Marco is making a scale model of a building. The building has a round deck at the bottom with a diameter of 120 meters. What should the diameter of the deck in the scale model be if Marco wants the circumference to be 1/40 actual size?

    asked by Shannon
  116. Algebra 2

    Please show me how to find ordered pairs. 2x+y =8 Thanks.

    asked by Linda
  117. child development

    1. In a study examining preschoolers’ responses to their peers’ distress, researchers used _______ to record each instance in which a child cried, followed by other children’s reactions. 
A. time sampling
B. systematic collection C. event

    asked by younes
  118. child development

    One way to test for the validity of research methods is to A. compare children’s answers to different halves of the same test. B. test for inter-rater reliability. C. compare children’s answers on different forms of the same measure. D. see how

    asked by younes
  119. Physics

    At the State Fair you see people trying to win a prize at a game booth. They are sliding a metal disk shaped like a puck up a wooden ramp so that it stops in a marked zone near the top of the ramp before sliding back down. You estimate that you can slide

    asked by jake
  120. project child care

    i have made an observation project to preschool can anybody correct my project and see whats my mistakes thanks

    asked by younes
  121. child development

    17. Ethnographic research is aimed at understanding 
A. the development of cohorts.
B. relationships between early experiences and later behavior. C. children’s mastery of a new skill.
D. the cultural meanings of behavior. is it B? i have red the

    asked by younes
  122. Consumer Math

    If XYZ stock is quoted at 523/4 per share, what is the market price per share A. $52.75 B. $52.34 C. $275.00 D. $75.00? A?

    asked by Dave