Questions Asked on
August 22, 2014

  1. waverley girls high school

    Which career options do you have if you choose subjects such as geography, maths literacy, business studies and life science ?

    asked by tshepang
  2. chemistry

    calculate the amount of water in grams that must be added to 5.00 grams of urea (NH2)2 CO in the preparation of a 16.2 percent by mass, and 26.2 grams of MgCl2 in the preparation of a 1.5 percent by mass solution.

    asked by vonedtera
  3. math

    One basket of oranges has one-third again as many oranges as a second basket. If the first basket has 3 more oranges than the second basket,how many has the first basket?

    asked by jeni
  4. Statistics

    The scores for math test #3 were normally distributed. If 15 students had a mean score of 74.8% and a standard deviation of 7.57, how many students scored above an 85%?

    asked by Lisa
  5. Physics

    The figure below shows an electron passing between two charged metal plates that create an 115 N/C vertical electric field perpendicular to the electron’s original horizontal velocity. (These can be used to change the electron’s direction, such as in

    asked by Joe
  6. law

    You and your classmates are divided into four groups that govern your entire school. Each group has a different function but all groups are of equal importance. The time comes when your school needs a new law, and each group has as much to gain or lose as

    asked by ............
  7. Physics

    1.) The earth's radius is about 3956.52 mi. An object that has a mass of 20 kg is taken to a height of 160 km above the earth's surface. a. What is the mass of the object at this height? b. How much does the object weigh at this height?

    asked by YESHA
  8. math

    If Britain and France had not adopted a policy of appeasement, would Adolf Hitler have been as successful as he was in overrunning Europe

    asked by lisa
  9. CHECK PLEASE

    I think its B only Which statements are true about the agricultural revolution? Choose all answers that are correct. A. It occurred at different times in different places over many years. !@#$%^&anged people's lives because they now had nearly complete

    asked by Matt
  10. Physics

    A 20 kg wagon is pulled along the level ground by a rope inclined at 30 deg above horizontal. A frictional force of 30 N opposes the motion, how large is the pulling force if the wagon is moving at constant velocity?

    asked by YESHA
  11. geometry

    solution of the questions The sides of a quadrilateral ABCD are 6 cm, 8 cm, 12 cm and 14 cm (taken in order) respectively, and the angle between the first two sides is a right angle. Find its area.

    asked by Anonymous
  12. statistics

    The average weight of all newborn babies at Dearborn Hospital was estimated by using the average weight of babies born in the month of April. Based on this information, identify: a. A statistic b. A variable c. A data value

    asked by MissPatte
  13. Science

    How might creativity help a scientist? a)creativity allows a scientist's findings to be trusted. b)Creativity alllows a scientist to develop new ideas or evaluate old ideas in a new way. c)Creativity assures that the scientist has a sense of right and

    asked by G
  14. Science

    How might creativity help a scientist? A.Creativity allows a scientist's findings to be trusted. B.Creativity allows a scientist to develop new ideas or evaluate old ideas in a new way. C.Creativity assures that the scientist has a sense id right and

    asked by G
  15. Am I right?

    I have to state three causes and effects of the cold war. Causes: -The Soviet union was trying to get surrounding countries to become communist -The acquisition of atomic weapons by America caused fear in the Soviets. -Both countries feared an attack from

    asked by lisa
  16. Algebra

    Given that xy = 3/2 and both x and y are nonnegative real numbers, find the minimum value of 10x + 3y/5

    asked by Eric
  17. Physics

    The speed of an arrow fired from a compound bow is about 57 m/s. An archer sits astride his horse and launches an arrow into the air, elevating the bow at an angle of 54 above the horizontal and 2.3 m above the ground. What is the arrow's range?

    asked by Chris
  18. Social Studies

    1. What function do the barrier islands play environmentally for the state of Georgia? A. They create deep sea ports. B. They protect the coastline. C. They carry toxic chemicals from the mainland. D. They reduce the likelihood of drought. 2. Which of the

    asked by Amber
  19. Physics

    1.)A force of 250 is just sufficient to start a 50 kg steel trunk moving across a wooden floor. Find the coefficient of static friction. 2.) compute the acceleration of the block sliding down a 30 deg inclined plane if the coefficient of kinetic friction

    asked by John
  20. gas law

    A certain volume of co2 take 200 sec to diffuse through a porous plug how long eill it take the same volumeof hydrogen chloride gas to diffuse under same condition

    asked by magdaline
  21. Physics

    A body A of a mass 0.16 kg exerts a force of 6.2x10^-10 N on a body B when the distance between their centers is 0.37 meters. What is the mass of body B?

    asked by JOSH
  22. Physics

    A 20 kg wagon is pulled along the level ground by a rope inclined at 30 deg above horizontal. A frictional force of 30 N opposes the motion, how large is the pulling force if the wagon is moving at constant velocity?

    asked by JOSH
  23. chemistry

    hydrogen gas has a Henry's law constant of 1.07e-6 M/mm Hg at 25 Celsius when dissolving in water. if the total pressure of gas (H2 gas plus water vapor) over water is 1.0atm, what is the concentration of H2 in the water in grams per milliliter?

    asked by angel
  24. Physics

    A 25 kg box is along a horizontal floor and a force of 400 N pushes the box with an angle of 50 deg with the horizontal. Starting from rest, the box achieves a velocity of 2 m/s in a time of 4 seconds. Find the coefficient of sliding friction between box

    asked by JOSH
  25. math confused

    it took marty 42 min to write a book report. then he spent 18 min correcting this report. explain how can you use mental math to find how long marty spent on his report?

    asked by Kelly
  26. American Constitutional Law

    Most agreements with foreign nations are in the form of: A. executive agreements. B. treaties. C. statutory arrangements. D. ex parte proceedings. This one is really confusing. I am torn between A & B. My textbook says both and looking on line says both as

    asked by Pat
  27. science

    an electron in a one-dimensional box undergoes a transition from the n=3 level to the n=6 level by absorbing a photon of wave length 500 nm. what is the width of the box?

    asked by Husnul
  28. physics

    A motorist A leaves a small town and drives East at 28 ms-1 . A second motorist B is driving South towards the same town at 23 ms-1 . Draw a diagram and find the velocity of motorist B relative to motorist A? ( VB REL A ) is this just phythagoras and

    asked by jp
  29. chemistry

    Ions in aqueous solution that are surrounded by polar water molecules are said to be saturated. is it true or false?

    asked by angel
  30. science

    the hydrogen ion concentration in a mixture of 10ml 0.1 M H2SO4 AND 10ml 0.1M KOH solution in water is?

    asked by madhu
  31. Stats

    Sally rolls a fair number cube 8 times and gets a 5 twice. What is the experimental probability that on her next roll, she will roll a 5? I know that experimental probability is f/n, so the number of trials is now 9, but is the number of times Sally roll a

    asked by Liv
  32. English

    1. She held out her hand. 2. She extended her hand. --------- Are both the same? Can we use some other expressions instead of 'held out'? 3. It's been such a long time. 4. It's been so lone a time. --------------------------- What does 'It' refer to here?

    asked by rfvv
  33. Physics

    A body A of a mass 0.16 kg exerts a force of 6.2x10^-10 N on a body B when the distance between their centers is 0.37 meters. What is the mass of body B?

    asked by YESHA
  34. Physics

    The wavelength of a stationary wave is 36.0cm. What is the distance between a node and the next anti -node

    asked by Richard
  35. Chemistry

    Full question: An alcohol of molecular formula C4H10O2 contains two OH groups and has an unbranched carbon atom chain. On reaction with excess hot potassium permanganate this alcohol is converted into a compound of molecular C4H6O4 To which carbon atoms in

    asked by Ariana
  36. Science

    What type of scientific thinking did alfred wegener employ to develop his theory? A.Inductive reasoning B.Deductive reasoning C.Skeptical reasoning D.Subjective reasoning Is the answer A?

    asked by G
  37. math mental math

    shelley spent 17 min washing the dishes. she spent 38 min cleaning her room. explain how you can use mental math to find how long shelley spent on the two tasks?

    asked by Summer
  38. algebra

    Find the present value, using the present value formula and a calculator. (Round your answer to the nearest cent.) Achieve $225,500 at 8.55% compounded continuously for 8 years, 125 days.

    asked by HOLLY
  39. Chemistry

    Why neon gas is used in botanical gardens and green houses? Why KrF6 doesn't exist? Why helium can diffuse through rubber,PVC and even glasses? Show two-center-two electron bonds and three-center-four electron bonds in B2H6?

    asked by Edd
  40. Chemistry

    The most abundant noble gas in atmosphere among He, Kr, Ar, Xe?

    asked by Edd
  41. math

    15. What is the mathematical average of the number of weeks in a year, seasons in a year, and the number of days in January? This is what I know so far: I know there is 52 weeks in one year.

    asked by vincent
  42. physics

    A car of mass 1000 kg accelerates uniformly from rest to a velocity of 54 km/h in 5 seconds calculate 1) its acceleration 2) its gain in k.e 3) average power of the engine during this period . neglect friction

    asked by Anonymous
  43. algebra

    Average movie ticket prices in the united states are, in general, lower than other countries. It would cost in $80.22 to buy three tickets in Japan plus two tickets in Switzerland. Three tickets in Switzerland plus two tickets in Japan would cost $75.53.

    asked by need help
  44. English

    1. It is colorless. 2. Much care is needed for the plants. 3. Watch them grow. 4. Come visit our greenhouse. Are all these sentences complete sentences?

    asked by Hayden
  45. college algebra

    store mixes a Brazilian coffee worth worth $10 per kilogram and a turkish coffee worth $13 per kilogram. The mixture is to sell for $12 per kilogram. Find out how much of each should be used to make a 420-kilogram mixture. my calculations all came out

    asked by college
  46. Algebra

    Find the algebraic expression. Quotient of 8 and the difference of x and m My answer is 8/x-m

    asked by Faye
  47. AS Chemistry

    which ions are present in a solution of ethanol in an excess of concentrated sulphuric acid? 1 CH3CH2O- 2 CH3CH2OH2 3 HSO4- Explain please! Thanks :)

    asked by Ariana
  48. math

    3. If Leah is 6 years older than Sue and John is 5 years older than Leah, and the total of their ages is 41. Then how old is Sue? This what I have so far: L=s+6 J=L+5

    asked by vincent
  49. MATH HELP

    shelley spent 17 min washing the dishes. she spent 38 min cleaning her room. explain how you can use mental math to find how long shelley spent on the two tasks?

    asked by Olivia
  50. physics

    A car of mass 1000 kg accelerates uniformly from rest to a velocity of 54 km/h in 5 seconds calculate 1) its acceleration 2) its gain in k.e 3) average power of the engine during this period . neglect friction

    asked by Anonymous
  51. I have a pretty hard one

    45% of 75% of a number is 70, what is the number? Express your answer as a common fraction.

    asked by Math
  52. math

    41. It takes Craig 20 minutes to type n pages. At these rates, how many hours will it take him to type 100 pages? All i know is 20/n

    asked by vincent
  53. algebra

    What is the maximum value of c such that the graph of the parabola y = (1/3)x^2 has at most one point of intersection with the line y = x+c?

    asked by Jack
  54. ENGLISH

    In what year was this article published? In what year was the film Minority Report set? What gaming console does the article mention? Why does the article mention this gaming console? What is the “Star Trek effect,” and how does it relate to what you

    asked by LISA
  55. math

    solution of the questions The sides of a quadrilateral ABCD are 6 cm, 8 cm, 12 cm and 14 cm (taken in order) respectively, and the angle between the first two sides is a right angle. Find its area.

    asked by sanjaivnair
  56. Physical science

    What did svante arrhenius discover about the reaction between an Acid and a Base?

    asked by Siphelele
  57. finance

    what is the payoff amount of a 30 year $255,413 mortgage at 6% interest with a payment of $1,321.33 with 8 years remaining?

    asked by Leia
  58. College ALGEBRA

    . Manny plans to save of his salary each week. If his weekly salary is $ 444, find the amount he will save each week.

    asked by MARIE JONES
  59. Pre Med Major

    Hi. I am an accounting major. Is there anyway I can finish my accounting degree and still finish the pre med requirements in 4 years? Can an Accounting major become a MD? I know about MCAT and everything.

    asked by Mohammed
  60. math

    35. If b is positive integers less than 400 and more than 100, then how many integer pairs (a,b) satisfy the equation a/b=2/9?

    asked by vincent
  61. Math percentage (Money problem tax, discount)

    After 15% off, the book price becomes $26, what was the original price of the book? Round to the nearest cent. I had $29.9 but it was wrong :(

    asked by Math
  62. Calculus-Math

    Derivative of x^7/7x^3-45x+25

    asked by Lorine
  63. Chemistry

    Attachment of [XeF]+ ions with [AsF6]- ions in their compound

    asked by Edd
  64. Physics

    Whats the difference between frictionless and friction in a way of solving? Like in formula, and what formula should use

    asked by Kae
  65. Algebra

    What is the sum or difference? 5-3x/5 My answer is 1 - 3x/5

    asked by Faye
  66. calc

    d/dx of taninverse e^3x i know tan inverse is 1/1+x^2 but im not sure what to do with e^3x?

    asked by jasmine
  67. Science

    An air balloon is at rest in the air and a stone is dropped from it. It passes a 81m tower in quarter of a second and comes on the ground. Find the final velocity and the height of the air balloon.

    asked by Sahil Khan
  68. math

    I need help with just two questions. Can you help me with them please? Thank you so much! 1. School Materials, Inc., packs 1-centimeter cubes in boxes that are 10 centimeters long, 12-centimeters wide, and 8 centimeters high. A carton holds 2 dozen boxes

    asked by Chearles
  69. Math

    Write the numbers 1 to 9 in the circles so that each side of the square adds up to 12. (Hint:put 7 in the middle) Example: this is the grid u have to put the numbers in O------O-------O | |. | O------O-------O |. |. | O------O-------O

    asked by Lalalala
  70. physics

    Find the ratio of the electrostatic to gravitational force between two electrons. 4.16×1042 What is this ratio for two protons? (Why is the ratio different for electrons and protons?)

    asked by Joe
  71. math

    48.Kate's class has between 40 and 51 students. Exactly of 75%of the students in her class have black book bags, and exactly 1/6 of students in her class do not have a book bag at all. How many students are in Kate's class?

    asked by vincent
  72. math

    20.Which of the following numbers could be described in the following way: an integer that is natural, rational and whole number? I think the answer is B A.0 B.1 C.2.33 D.-3 E.none of the above

    asked by vincent
  73. math

    find d/dx of the integral from 1 to 2x of the (sqrt t^2+1)dt at x=sqrt2 the answer is 6. but i am not sure how to find d/dx. i tried taking the integral then doing that from 1 to 2x and then taking d/dx then plugging in sqrt2 for x but it was wrong

    asked by hannah
  74. dddd47906

    In the fable The Goose That Laid the Golden Eggs, I know it teaches us that greed can lose us all we have, though it also teaches us that- a. All that glitters may not necessarily be gold. b. It is foolish to harm something or someone that benefits you. c.

    asked by Fables
  75. math

    calculate the upper limit for the definite integral from -2 to 2. oh x^2+1 dx with the partition P=-2,-1,0,1,2

    asked by sara
  76. math

    24% of a number is 45, what is the number? Express your answer as a decimal.

    asked by MATH
  77. math

    7. What area remains when the area of a square with side 3 is subtracted from the area of circle with radius 2?

    asked by vincent
  78. math

    Mason brought 18 red pencils to school. He brought 4 times as many erasers with him. How many erasers did Mason bring to school? Let M = how many erasers 18x4=M M=42

    asked by kennedi
  79. question

    two friends bob and ralph, ate at a restarunt together. bob paid for himself and ralph paid for himself. Bob spend 3 dollars more than ralph. the total bill was 52.24 dollars how much did bob pay?

    asked by anonymous
  80. mathematics

    A piece of rope is 250 cm long.How much times will it wrap around a circle with a radius of 25 cm?

    asked by curlian
  81. science

    what is 50g divided by 8cm3

    asked by kesha
  82. physics

    Please help me answer the question because I am really confused about this problem. 1. an electron in a one-dimensional box undergoes a transition from the n=3 level to the n=6 level by absorbing a photon of wave length 500 nm. what is the width of the

    asked by Husnul
  83. English

    1. He is taking me to prison. 2. He is taking me to a prison. 3. He is taking me to the prison. --------------- Are they all grammatical? What is the difference among them in meaning? 4. I'm on duty now, as you know. 5. I'm on duty now, you know. 6. I'm on

    asked by rfvv
  84. English

    He seemed embarrassed at first, but he overcame it quickly and held her fingers with his left hand. ------------------- In this sentence what does 'it' refer to?

    asked by rfvv
  85. Math

    What is the value of w? 5( 9 - 3) = w x 9 - 5 x 3 I think the answer is 6 because 9-3 equals 6. *it's not multiple choice*

    asked by Nay
  86. Algebra

    Solve for x. (x-1)/(x-3)=sqrt of 17-x

    asked by Anonymous
  87. Math

    I need to find expressions that will show how 5 x 37 can be rewritten using distributive property. 5 x 30 + 7 ---- My answer 5 x 30 + 5 x 7 5 x 40 - 5 x 7 5 x 40 - 5 x 3 *It can be more than one answer* 3u + 7v + 4u = 2v (I have to simplify) My answer is

    asked by Nay
  88. Algerbra 2

    Arithmetic sequence 4,7,10,13 How do you do it.

    asked by Brianna
  89. health care

    Business Organization refers to how a business is? Select one: a. profitable b. structured c. re-named d. considered large enough to purchase a building

    asked by Tina
  90. Spanish

    what does "evoca a una època passada." mean?

    asked by Katt
  91. math

    which of the following is true about the function g(x)= 4x^2 - 3x^4? a)g is decreasing for x

    asked by hannah
  92. maths

    how to prove theorem 4 and 5

    asked by ram.kgo
  93. Related rates math in calculus

    A square sheet of cardboard has sides 18cm. Four equal portions are cut away from the corner and discard. The sides are then twiced up to form a restangular box. What are the dimension of the box formed that will have max volume?

    asked by PHILLIP