Questions Asked on
May 31, 2015

  1. Chemistry

    20.00mL of a 1.100x 10^-4 mol/L Pb(NO3)2 is mixed with 80.00mL of 4.45010^-2 mol/L CaI2. Will a precipitate form? for the Ksp i got 2.7x10^-8 and im not sure if its right or not this is what i did [Pb2+] = (1.1x10^-4 mol/L x 0.02L)/(0.02L + 0.08L) =

    asked by Rez
  2. Maths

    Colin paid $4 for 4 buns and 4 cakes. 3 buns cost as many as 2 cakes.What was the total cost of 5 buns and 5 cakes? (My teacher gave this to my class as a brainteaser. I'm Australian and I'm nowhere near the smartest in my class. My homework is due in 6

    asked by Olivia :)
  3. Math

    The surface area of this hemisphere is 1062 cm^2. what is its radius? please help me calculate this step by step

    asked by Albert Einstein
  4. geometry

    Name a point that is between 50 and 60 units away from (7,-2) and state the distance between the two points.

    asked by Mark
  5. physics

    If the relative density of a metal is 19. What will be the mass of 20cm of the metal when immersed in water RD=19 Mass=20cm³

    asked by Eniola
  6. Calculus

    A(x) = x^2 + 128/x find A'(x) and A"(x)

    asked by Anonymous
  7. Econ

    You are the manager of a firm that receives revenues of $40,000 per year from product X and $90,000 per year from product Y. The own price elasticity of demand for product X is -1.5, and the cross-price elasticity of demand between product Y and X is -1.8.

    asked by anonymous
  8. Maths literacy,geograph,tourism,consumer studies

    I choose that subject what a good job im i going to get

    asked by Sithole humbulani
  9. math

    find a and b for the following:- 1).(root of 2+root of 3 / 3 root of 2 - 2 root of 3) = a+b root of 6 2). {(root of 5 - 2/root of 5+2)-(root of 5+2/root of 5 - 2)} = a+b root of 5

    asked by vikash goyal
  10. math

    find two irrational numbers lying between root of 2 and root of 3

    asked by vikash goyal
  11. Economics

    What is the South African government providing and to whom?

    asked by Thandokazi
  12. Economics

    What are costs and consequences of providing the subsidies and welfare?

    asked by Thandokazi
  13. English

    African slaughter rituals should be allowed in surburbs.why?

    asked by Mazwi
  14. Life Orientation

    Core functions of the media

    asked by Lindokuhle
  15. English

    Traditional africa marriage is an advantage for men.not women

    asked by Mazwi
  16. chem

    Enter the symbol of the element which would have 2 electrons and -1 charge.

    asked by idk
  17. mechanics of dynamic

    A thief escapes and boarded on a truck and traveled at a constant speed of 55kph. Two hours later after the truck left , a policeman pursued the truck at a constant speed of 80kph. How long it did take the policeman to catch up the thief ?

    asked by von gwapo
  18. nuclear chemistry

    determine the nuclear binding energy for Ir-187. Atomic mass of Ir-187=187.958830 g/mol (per nucleon) dE=dmc(^2) mass of proton= 1.00728 amu mass of neutron=1.00866 amu

    asked by Anonymous
  19. nuclear chemistry

    determine the nuclear binding energy for Ir-187. Atomic mass of Ir-187=187.958830 g/mol (per nucleon) dE=dmc(^2) mass of proton= 1.00728 amu mass of neutron=1.00866 amu

    asked by Anonymous
  20. precal

    convert from rectangular coordinates to polar coordinates x=y

    asked by Anonymous
  21. nuclear chemistry

    Determine the nuclear binding energy for Pd-101. atomic mass of Pd-101=100.908287 g/mol.

    asked by Anonymous
  22. Design & Technology

    What are the social and moral issues with puppets for children? (Pro's and Con's)

    asked by Hifza
  23. Algebra 1

    A right triangle has 1 leg that is 2" longer than the other leg. the length of the hypotenuse is sqrt 130" Find lengths of legs 0=2x^+4x-126

    asked by William
  24. life orientation

    what are five interview guestion must be used to evaluate the understanding of service delivery protests by the learners in schools

    asked by mahlatse
  25. math

    What is the solution to the following equation? 3x(x-4)+5=12

    asked by charlie
  26. geometry

    One endpoint of a line segment is (8, −1). The point (5, −2) is one-third of the way from that endpoint to the other endpoint. Find the other endpoint.

    asked by Mark
  27. Algebra II

    Can you please let me know if I solved the following equation correctly? 1 + 5(n-8) = 2 - (n +5) 1 + 5n - 40 = 2 - n - 5 -39 + 5n = -3 - n 6n = 36 n = 6 Thank you very much!

    asked by Linda
  28. Civics ASAP PLZ =:)

    What is one advantage the United States has over Canada for maintaining a diversified economy? The U.S. has a greater gold resource The U.S. has a greater labor resource The U.S. has a greater per capita of fresh water The U.S. has a greater land

    asked by Anonymous
  29. algebra--1 question

    The width, w, of a rectangular playground is x + 3. The area of the garden is x^3 - 7x + 6. What is an expression for the length of the playground? a.) x^2 - 3x + 2 b.) x^2 + 3x - 2 c.) x^2 + 3x + 2 d.) x^2 - 3x - 2 Is it b???

    asked by SkatingDJ
  30. Digital Circuits

    which is the primary purpose of a resistor in series with a led being driven by a flip-flop a. Limit voltage b. Limit current c. Limit speed d. Limit power

    asked by Makaila
  31. Agricultural Science,Business Studies,History,Life Orientation.

    I do the following subjects:Agricultural Science,Business Studies,History,Life Orientation and Two Languages.And Im wondering What kind of A Job can I get and which college/university can Go to? .. Please Help

    asked by Ezethu Sizani
  32. Life Orientation

    Define service delivery protests

    asked by Malatji Patricia
  33. pennfoster

    Mary Palm's checking account had a starting balance of $785.63. She wrote a check for $57.00 for groceries and a check for $125.00 for a car payment. Yesterday she deposited $57.25 in her checking account. What is Mary's current balance

    asked by djjj
  34. chemistry

    What mass of copper will be deposited by a current of 7.89?

    asked by solomon
  35. algebra--1 question

    Multiply. (k+3)/(4k-2)*(12k^2+2k-4) a. 3(k+3)/3k+2 b. 3(k+3)(2k-1)/2 c. (k+3)(3k+2)*** d. (3k+1)(2k+3) Please help? Thanks

    asked by SkatingDJ
  36. Physics

    The mass of a stone is 15.0g when completely immersed in water and 10.0 when completely immersed in a liquid of relative density 2.0 what is the mass of the stone in air.

    asked by Inioluwa
  37. English

    Which of the following is not a type of sentence? A. Compound-complex B. Simple C. Complex D. Simple-compound My answer is D

    asked by debbie
  38. Physics

    If the relative density of a metal is 19 what will be the mass of the metal when immersed in water.

    asked by Inioluwa
  39. Physics

    If the relative density of a metal is 19 what will be the mass of 20cm^3 of the metal when immersed in water.

    asked by Inioluwa
  40. English

    Which of the following sentences shows an example of parallel verbs? A. Once the game was over, Jim had to run home and then eat his dinner. B. Once the game was over, Jim had to run home and dinner was ready. C. Once the game was over, Jim had to be

    asked by debbie
  41. English

    Which of the following sentences contains a redundancy? A. Chris had trouble working up even mild enthusiasm for Mike's plan. B. Steve admired the partially completed stadium. C. Emily's sister gave birth to a pair of twins. D. At no time did Tony indicate

    asked by debbie
  42. English

    In which sentence does the italicized word have a negative connotation? A. Jack, who is the most outspoken member of the group, led the opposition to the new rule. B. Jenna's green eyes and dark eyelashes gave her an exotic look. C. Matthew was a

    asked by debbie
  43. Math (Statistics)

    Without calculating values of z, tell which of these sample means will have the most extreme standardized score and which will have the least extreme standardized score. 40, 30, 25, 20.

    asked by Debbie
  44. English

    In which sentence does the italicized word have a negative connotation? A. Jack, who is the most outspoken member of the group, led the opposition to the new rule. B. Jenna's green eyes and dark eyelashes gave her an exotic look. C. Matthew was a

    asked by debbie
  45. English

    Which of the following sentences contains a redundancy? A. Chris had trouble working up even mild enthusiasm for Mike's plan. B. Steve admired the partially completed stadium. C. Emily's sister gave birth to a pair of twins. D. At no time did Tony indicate

    asked by debbie
  46. English

    Which sentence should be edited to eliminate its cliché? A. The texture of the burlap was a cross between woven straw and a three-day beard. B. The family was immensely relieved when Great-Aunt Martha's condition progressed from "critical" to "it looks

    asked by debbie
  47. English

    Which of the following is a simple sentence? A. Karen and David arrived at the airport at 3:35 P.M. and took a taxi to their hotel. B. When I realized I was too late, I called David's cell phone and made arrangements to meet them in town. C. I got to the

    asked by debbie
  48. English

    Which of the following sentences uses concrete language? A. Jerry saw that the glass was really dirty. B. I met Cathy at a store on a street near the bridge. C. Danny's Labrador retriever eagerly chases tennis balls. D. When I saw Susan, she was reading a

    asked by debbie
  49. economic s

    are there any welfare or subsidy payments that should be reviewed

    asked by eddy
  50. History

    1.What was one thing President Nixon did in an attempt to improve relations with the Soviet Union? A. established relations with China

    asked by Gigi
  51. Math

    Hello! Could someone please take a look at the problem below and let me know if I made mistakes in simplifying the given equation? I'm quite certain that I did make a mistake somewhere because the original equation and its simplified form give different

    asked by Constantine
  52. Civics ASAP PLZ =:)

    Fiscal conservatism is the belief that government should not have large debts, and that government programs should not be paid for on borrowed money. How could both Democrats and Republicans be considered fiscally conservative? Republicans - spending money

    asked by Anonymous
  53. math

    What number is the sum of 8 numbers whose average is 13

    asked by lily
  54. Math

    What is the maximum volume of a cone that would fit in the box with h=3cm, l=6cm, and w=3cm? how do i do this step by step

    asked by Albert Einstein
  55. english ASAP

    which excerpt from the play best supports the answer to the previous question? a)"more than eighteen hundred... a tremendous family to provide for!" b)"these children are his? on his meager earning! what foolishness!" c) Do you mean crochet, spirit? do u

    asked by Anonymous
  56. english

    what is the prepositional phrase in this sentence the bird flew directly over our heads. a)flew b)over C)heads d)our is b right??? @ms.sue

    asked by Anonymous
  57. english

    what is the prepositional phrase in the sentence? the family drove to the store. A)the family drove b)drove to the store c)the family d) to the store

    asked by Anonymous
  58. Chemistry

    Tap water that contains Cl− at a concentration of 50 ppm is used to prepare a 0.100 mol/L AgNO3 solution. Does a precipitate form? How much? I don't know how to find out how much precipitate will form but a precipitate will form based on my calculations

    asked by Rez
  59. programming logic and design

    need help on creating a logic for a program that accepts input values for the projected cost of a vacation and the number of months until vacation

    asked by benita
  60. Trigonometry

    In a parking garage, there are 20 feet between each level. Each ramp to a level is 130 feet long. Find the measure of the angle of elevation.

    asked by Cindy
  61. Logs

    log (sqrt4(x^16 / y^4)) What is the value of the expression when logx=8 and logy=1? My work: x=10^8 y=10 I tried to plug these in but my calculator but it said "overflow." Is there an easier way to do this?

    asked by Selena
  62. Math

    A hot air balloon with a height of 120m is directly over a bridge that is 313m from the balloon's landing point. The navigator finds the angle of depression to the landing point. Find the angle of depression.

    asked by Shawn
  63. English

    what purpose for reading do the stage directions suggest to readers? to learn about a subject to be inspired to be entertained to gain understanding i think its the last one, or the first, pls check

    asked by Anonymous
  64. Math

    you have 1/2 of a brownie. You eat 3/4 of what you have , what fraction of the brownie did you eat?

    asked by Alisha
  65. Geography

    Why is it important to Canada and Canadians about the senior citizens not receiving more attention from the Canada's health system.

    asked by thi
  66. english

    Ebenezer Scrooge's character changes between act 1 and 2, describe the change in scrooge's character (not multiple choice)

    asked by Anonymous
  67. DISCRETE MATH

    Let Z 5 be the relation of congruence modulo5. If 1 ≤ m, n ≤ 5,we define the product of two classes as [m][n] = [mn]. Explain why [3][4] = [2]. Thanks

    asked by Anonymous
  68. DISCRETE MATH

    Let Z 5 be the relation of congruence modulo5. If 1 ≤ m, n ≤ 5,we define the product of two classes as [m][n] = [mn]. Explain why [3][4] = [2]. I know 3 x 4 = 12. 5 mod 12 = 2. but i don't know how to explain it. Help with the explanation please.

    asked by Anonymous
  69. Geography

    Followed by the last question, How may the topic affect the lives of Canadians? I know one reason is that as people age, there will be less people receiving medical attention. What else can I add to make this sentence better?

    asked by thi
  70. Math

    This is a question regarding quadratic equations. I think I have to use the quadratic formula but I'm not sure and because the question provides the base I think I'm wrong. Here is the question|: During a hurricane, parabolic waves on the ocean can exceed

    asked by Brady
  71. Math

    Christine's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Christine $5.85 per pound, and type B coffee costs $4.40 per pound. This month, Christine made 174 pounds of the blend, for a total cost of $906.25. How

    asked by John
  72. Language arts

    What is one conflict that represents a cause and effect relationship in the story dragon wings.

    asked by meows
  73. Sequences

    Terms 1 through 5 of a sequence are shown below. 8/81 , 4/27 , 2/9 , 1/3 , 1/2 What is the 10th term in the sequence? I have no clue. I tried having common denominator of 81, but that just confused me more. I would try to show more work, but I really don't

    asked by Anne
  74. Algebra

    A plane has a cruising speed of 100 miles per hour when there is no wind. At this speed, the plane flew 600 miles with the wind in the same amount of time it flew 400 miles against the wind. Find the speed of the wind.

    asked by Teneva
  75. geometry

    ABCD it's an isosceles trapazoid With A(10,-1),B(8,3), and C(-1,3).find the coordinates of D

    asked by kenzie
  76. physics

    An inverted image is magnified by 2 when object is placed 22 cm in front of a concave mirror. Determine the image distance and focal length of the mirror.

    asked by sakura
  77. LA

    which of the following words best describes the overall mood at the novel? A)shocked but resolved b)angered and desperate c)traumatized but hopeful d)rejuvenated and restored** am i right?

    asked by dragonwing L.A.
  78. Science

    Which of the following is not a characteristic of natural selection? A. More offspring are born than will survive to reproduce. B. Mutations appear randomly. C. Breeding pairs are chosen by humans. D. Organisms that are better adapted are more likely to

    asked by Zeana
  79. Math

    The time required to finish a test in normally distributed with a mean of 40 minutes and a standard deviation of 8 minutes. What is the probability that a student chosen at random will finish the test between 24 and 48 minutes? 82% 2% 84% 16%

    asked by Destiny
  80. Math

    Suppose you have a mean standardized score of 1500 points with a standard deviation of 150 points. This data is normally distributed. What is the z-score of 1600 points? 0.75 0.5 0.67 0.32

    asked by Destiny
  81. Chemistry

    What is the difference between a square pyramidal and a trigonal bipyramidal? I know that the square has a square base and that trigonal bipyramidals have 5 atoms bonded to it but when I have questions that have 5 atoms bonded they end up being squares

    asked by Asher
  82. Chemistry

    NCl3, SiCl4, AsCl3, SCl2, PCl3 order them in terms of increasing bond polarity NCl3

    asked by Asher
  83. 8th grade math

    A rubber ball loses 30% of its height each A rubber ball loses 30% of its height with each bounce How high is the first bounce if the ball is dropped from a height of 500 cm?

    asked by Carlos
  84. algebra

    the length of a rare jeweled rectangular prism has a length equal to its width and a height that is 5 cm greater than its width.volume of the prism is 72 cc a) write a polynomial equation that can be used to solve for the width (x) of the prism b) solve

    asked by ricelys
  85. chemistry

    if 15.95 g dissolves in 100ml of water what will be the solubility in g/ml expressed to the proper number of significant figures?/ 15.95/100 =.0595

    asked by jojo
  86. Socials

    How did Stalin suppress his people's individuality and control their personal and economic lives? I am having trouble researching his methods of control and how his people's lives were affected. I know he initiated a great massacre to terminate anyone who

    asked by Jane
  87. algebra

    Jason recently purchased a new truck for $34,750. The value of the truck decreases by 12% each year. how much could he sell the truck for in 7 years?(what would the value be?)

    asked by ricelys
  88. alegra2

    the number of wolf in yosemite park has increased at an annual rate of 10% since 2005 and there were 1.35 thousand at that time. a. write a function to model the number of wolves after t years. b. approximately how many years are now living in the

    asked by amber
  89. Physics

    A 5 ohm resistor a 15 ohm resistor and a unknown resistor, r, are connected as shown with a 15 volt source. The ammeter reads a current of 0.5 ampere. I got .1V by using ohm's law but I'm not sure if it's right

    asked by Mika
  90. chemistry

    what part of the meniscus must be read to accurately record the volume of a liquid in a graduated cylinder??? the lowest of the bubble?

    asked by jojo
  91. Algebra II

    Can someone please help me with PEMDAS? 4² + [15 ÷ 9 - 3(2)] if you do parentheses first then 15 ÷ 9 doesn't make sense. So I did, 16 + 15 ÷ 3 = 21 Thank you!!

    asked by Linda
  92. chemistry

    how many significant figures are in the measurement 0.002 ml? 2??

    asked by jojo
  93. DISCRETE MATH

    We have a relation R on Z+ defined as follows: mRn if and only if m|n. a. Explain why the relation R is not a function. b. Determine the set A = {m ∈ Z|mR52} and give its cardinality |A|. c. Determine the set B = {n ∈ Z|52Rn}. d. Indicate whether A ∩

    asked by Anonymous
  94. Chemistry

    My Question is: Commercial vinegar usually has a concentration of 5%, per volume. Calculate the [H3O+], if the density of acetic acid is 1.051 g/mL. What I did was: mass = V * density mass = 0.05 * 1.051 = 0.05 g moles = grams/molar mass = 0.05/60.05 = 8.3

    asked by Kibito
  95. chemistry

    is the formation of an aqueous solution with water, a physical or chemical property? physical..... because the substance doesn't change.....

    asked by jojo