1. history

    Which laws called for strict separation of the races in the South? (1 point) anti-discrimination laws Plessy v. Ferguson laws Jim Crow laws ***** boycott laws 2. Civil rights activists targeted segregation in interstate transportation (1 point) because

    asked by helga on April 5, 2018
  2. math

    use exact values of the sin,cos and tan of (pi/3) and (pi/6)(which I have found)and the symmetry of the graphs of sin,cos and tan to find the exact values of sin(-pi/6), cos(5pi/3) and tan (4pi/3). I know that sin -(pi/6) = -1/2 and cos (5pi/30 = 1/2 and

    asked by jenny on August 24, 2011
  3. Mathematics

    1. The speed of a current in a river is 6 mph. A ferry operator who works that part of the river is looking to buy a new boat for his business. Every day, his route takes him 22.5 miles each way against the current and back to his dock, and he needs to

    asked by Olivia N J on February 23, 2017
  4. acceleration estimate

    t(sec) 1 1.5 2 2.5 v(ft/sec) 12.2 1.3 13.4 13.7 velocity of an object moving along a line at various times. How do I estimate the object's acceleration(in ft/sec^2) at t=1 TIA t(sec) 1, 1.5, 2, 2.5 v(ft/sec) 12.2 ,1.3 ,13.4 ,13.7 The second velocity of

    asked by Jen on December 11, 2006
  5. Stat 1

    Seventy million pounds of trout are grown in the U.S. every year. Farm-raised trout contain an average of grams of fat per pound, with a standard deviation of grams of fat per pound. A random sample of farm-raised trout is selected. The mean fat content

    asked by sam on October 20, 2010
  6. statistics

    Seventy million pounds of trout are grown in the U.S. every year. Farm-raised trout contain an average of 32 grams of fat per pound, with a standard deviation of 7.5 grams of fat per pound. A random sample of 34 farm-raised trout is selected. The mean fat

    asked by Jen on October 23, 2011
  7. statistics

    Seventy million pounds of trout are grown in the U.S. every year. Farm-raised trout contain an average of 32 grams of fat per pound, with a standard deviation of 7.5 grams of fat per pound. A random sample of 34 farm-raised trout is selected. The mean fat

    asked by Jen on October 23, 2011
  8. Grammar

    Three quick questions I need help with- Choose the sentence that contains a verb in the passive voice: [1.] A. Thousands of people visit Alaska every summer B. Mount Denali is the sight that everyone hopes to see C. The magnificent mountain is often hidden

    asked by mysterychicken on May 9, 2009
  9. English

    Can you please check these sentences for me? Thank you very much. 1) Robotiv planes and search robots can be used in rescue situations such as after natural disasters. 2)Tney can be built and launched in 15 minutes. They are equipped with cameras and

    asked by English on December 22, 2010
  10. stats

    An ice cream vendor sells three flavors: chocolate, strawberry, and vanilla. Forty five percent of the sales are chocolate, while 30% are strawberry, with the rest vanilla flavored. Sales are by the cone or the cup. The percentages of cones sales for

    asked by cate on March 10, 2013
  11. physics

    This question refers to my question that was replied to: Sue and Jenny kick a soccer ball at exactly the same time.Sue's foot exerts a force of 62.3 N to the north. Jenny's foot exerts a force of 115.9 N to the east. What is the magnitude of the resultant

    asked by alexa on July 2, 2011
  12. physics

    1. A 50.0 Lb box is to be moved along a rough floor at a constant velocity. The coefficient of the kinetic friction is 0.300. A. What force must you exert if you push downward on the box? B. What force must you exert if you pull upward on the box? C. Which

    asked by Anonymous on February 2, 2016
  13. Physics

    A ray of light stikes a flat 2 cm thick block of ice (n=1.5) at an angle of 45 degrees. Refracted ray travels through the glass and then is refracted back to air at the opposite side of the block. Find the angles of incident and refraction at each surface.

    asked by Andrea on April 16, 2008
  14. math

    Can someone please check my math questions? My answers are under the questions... I would really appreciate any help Questions~ 16. A car’s speed before a sudden stop can be estimated by the formula S = √(30gk) , where S = speed of the car in mph, g =

    asked by Abby on October 14, 2015
  15. physiology help

    why do fetal pigs have sensory papillae for bitter taste on the tongue? i have no idea. maybe so they won't eat something bad? Since this is not my area of expertise, I searched Google under the key words "bitter taste function" to get these possible

    asked by dave on May 29, 2007
  16. World History

    topic: islamic expansion BN BATTUTA’S PRAISE FOR THE GOOD MUSLIMS OF MALI, 1352 HONESTY “They do not interfere with the property of the white man who dies in their country even though it may consist of great wealth, but rather, they entrust it to the

    asked by Evangelina on March 10, 2011
  17. computer programming

    Create a Raptor Flowchart that calculates the amount a person would earn over a period of time if his or her salary were five cents the first day, ten cents the second day, and so on doubling each day. Your program should: 1. Request the number of days. 2.

    asked by Morgan on February 23, 2017
  18. Math

    Create a Raptor Flowchart that calculates the amount a person would earn over a period of time if his or her salary were five cents the first day, ten cents the second day, and so on doubling each day. Your program should: 1. Request the number of days. 2.

    asked by Morgan on February 23, 2017
  19. Math

    Carlos counted all of the tickets that were taken at a school carnival. Each time he counted 10 tickets, he placed a tally on the chart below. Adult 16 Child 18 Which number sentence could be used to find t, the total number of tickets he counted?

    asked by Derrick on March 19, 2012
  20. English

    Here is the second part of my summary. Can you please check if everything is OK now? By the way, do you say "On which carriage or in which carriage is your seat?" Which bus number goes to the city centre OR Which number bus goes ....? 1) Go into the

    asked by Henry2 on October 3, 2011
  21. math

    A building is 900 feet tall and 150 feet wide. A scale model of the building is 3 feet tall. Which proportion can be used to find the width, w , of the scale model? A 900 150 = 3 w B 900 3 = w 150 C 150 900 = 3 w D 150 3 = 900 w

    asked by Anna on December 19, 2018
  22. social studies

    What were the major causes of the European Renaissance? If you were Martin Luther, what abuses of the church would you have attacked? if you can help me with either of those.. i would appreciate it

    asked by bre on May 28, 2007
  23. Communication/Speech

    Articulation errors: A. cannot be fixed B. should be constantly corrected C. are frequently outgrown D. occur as children try to imitate new sounds. Would the best answer be: (D) occur as childrentry to imitate new sounds? D is probably the best answer; C

    asked by Elyse on July 27, 2007
  24. Math

    Orienteering is a sport that involves navigating your way to a series of checkpoints with the aid of a map and compass. The goal is to find each point on the map as quickly as possible. A typical compass used for orienteering is divided into 360 degree

    asked by Cameron on June 6, 2016
  25. Govt. accounting

    The following information relates to Dell City, whose first fiscal year ended December 31, 2006. Assume Dell has only the long-term debt specified in the information and only the funds necessitated by the information. 1. General fund: • The following

    asked by sonia on March 22, 2008
  26. Chemistry

    Rolaids is an over the counter remedy for upset stomachs that functions by reacting with stomach acid. The active ingredients are calcium carbonate (550 mg) and magnesium hydroxide (110 mg). The inactive ingredients are dextrose, flavoring, magnesium

    asked by Jen24 on March 13, 2015
  27. Physics

    A 64.1-kg athlete leaps straight up into the air from a trampoline with an initial speed of 7.4 m/s. The goal of this problem is to find the maximum height she attains and her speed at half maximum height. Write the general equation for energy conservation

    asked by ann on November 21, 2011
  28. physics

    a steel rod was found to be 2 meters long at 20 degree celcious.when measured by a standard brass scale of length 1 meter at 0 degree celcious.find out the length of the same steel rod at 50 degree celcious as measured by the same brass scale at 40 degree

    asked by kanha on March 9, 2018
  29. algebra

    A school fair ticket costs $8 per adult and $1 per child. On a certain day, the total number of adults (a) and children (c) who went to the fair was 30, and the total money collected was $100. Which of the following options represents the number of

    asked by Jiskha Homework Help on December 22, 2017
  30. english

    can proof read and i made some changes that writeteacher told me A seventeen year old boy, Alex is the main character of the novel. Alex comes from school and find out his father in study. He saw his father talking on the phone. His father Ted Jackson,is a

    asked by anu on January 11, 2010
  31. College Algebra ..Please help

    I have about 5 homework problem that I am stuck on! please help me. The first of 5 is: A rectangular garden is 20 ft longer than it is wide. Its area is 8000 ft{}^2. What are its dimensions? Im not even sure where to start with this one. Next #2: The area

    asked by Anonymous on June 2, 2014
  32. Grammar

    Circle the nouns that can be used with the verbs on the right . Engine-consumption-dependence (reduce) Answer : consumption and dependence Solution-dependence-alternative (find) Answer:solution and dependence Resources-technology-stocks(deplete)

    asked by Maryam on June 6, 2013
  33. Physic please check

    A +6.00 µC charge is moving with a speed of 7.00 x 10^4 m/s parallel to a very long, straight wire. The wire is 5.00 cm from the charge and carries a current of 63.0 A in a direction opposite to that of the moving charge. Find the magnitude and direction

    asked by Mary on November 5, 2007
  34. statistics

    6. According to the records of Enersource, an electric company serving the Mississauga area, the mean electricity consumption for all households during winter is 1650 kilowatt-hours per month. Assume that the monthly electricity consumption during winter

    asked by david on June 23, 2013
  35. statistics

    Plymouth Rock Securities is interested in finding out if there is a relationship between the number of new clients brought into the firm by a broker and the sales performance of the broker. A random sample of 11 brokers' records are reviewed to determine

    asked by Mary on May 8, 2014
  36. statistics

    A consumer research organization is attempting to determine whether there is any difference in mpg for fully loaded 22-foot trucks leased from three companies, A-Haul, Bertz, and Glyder. Five of these trucks are rented from each company. Each truck is

    asked by Josephine on August 30, 2009
  37. Math

    Patricia's teacher asked her to find the perimeter of the school's rectangular parking lot. After school, patricia walks along the short side of the lot and finds it is 50 yards long. She then walks diagonally from one corner of the rectangle to the other

    asked by joe on February 7, 2010
  38. Math

    Tickets for a play cost Php 250 for adults and Php 200 for children.The sponsor of the show collected a total amount of not more than lhp 44,000 from more than 150 adults and children who watched the play. A. What mathematical statements represents the

    asked by Claire on September 13, 2017
  39. English

    Mom, I'm going to the stationery store. I'll buy some ball-point pens, fountain pens, and mechanical pencils. I'll buy some notebooks and workbooks, too. I'll come back around 7:00 p.m. Don (Is this passage corect?) 1. I'll be back around 7:00 p.m. 2. I'll

    asked by John on October 20, 2008
  40. Math

    A postal service says that a rectangular package can have a maximum combined length and girth of 108 inches. The girth of a package is the distance around the perimeter of a face that does not include the length. a. Identify an inequality that represents

    asked by Madeline on November 9, 2016
  41. AP Statistics

    The game Chuck-A-Luck is played as follows: A player bets $M on an integer chosen from 1-6 and then rolls three dice. If the number appears on exactly on die, then the player wins the amount bet. The player wins twice the amount bet if the umber appears on

    asked by Eggbert on April 5, 2018
  42. Physics

    A 55 kg ice skater, initially at rest on a flat skating rink, requires a 198 N horizontal force to be set in motion. However, after the skater is in motion, a horizontal force of 175 N keeps her moving at a constant velocity. Find the coefficients of

    asked by Anonymous on December 5, 2006
  43. chem expirement!

    You are required to design an experiment to test Hess's law using the combustion of ethanol. Write a brief design for this experiment. What I wrote as my answer: Hess’ Law: is the algebraic addition of chemical equations yields a net equation whose

    asked by rob on May 17, 2007
  44. Chemistry

    Chromium (III) iodate has a Ksp at 25°C of 5.0 x 10–6. 125 mL of a solution contains 0.0050 mol L–1 Cr (III) ion. What is the molar solubility of chromium (III) iodate at 25°C? a. 8.4 x 10–2 mol L–1 b. 2.2 x 10–3 mol L–1 c. 6.3 x 10–2 mol

    asked by jess on May 27, 2016
  45. Geometry

    9. what are the lateral area and the surface area of the cone shown below 14ft 17ft? ~LA=615.8 ft2; SA=1,803.3 ft2 ~LA=615.8 ft2; SA=3,166.7 ft2 ~LA=1,187.5 ft2; SA=1,803.3 ft2 ~LA=1,187.5 ft2; SA=3,166.7 ft2 12. Find the volume of the cylinder in terms of

    asked by Becky on May 27, 2016
  46. Business finance

    Question No: 1 If sales revenue was Rs. 100,000, accounts receivable decreased by Rs. 4,000, and inventory increased by Rs. 3,000, cash received from customers would be: a)Rs. 107,000 b)Rs. 104,000 c)Rs. 101,000 d)Rs. 93,000 Question No 2: Kamran just won

    asked by zeeshan on August 4, 2010
  47. Cyber Community Citizenship

    1. How do cyber communities differ from communities in the real world with regard to behavior? •It can be more difficult to identify inappropriate behavior in a cyber community. ****** •They are not different in any important ways •People behave more

    asked by Mindy on March 6, 2014
  48. CHEMISTRY

    The mass of an erlenmeyer flask is 78.639g and the mass of the flask and water is 327.039. If the density of water is 1 g/ml then what is the true volume of the flask? so i had subtracted the mass of just the flask from the mass of the flask and the water

    asked by Sandy on March 28, 2014
  49. English

    Thank you very much. I left out the following words which I need to replace. I can’t find appropriate synonyms. 1)She caused something of a scandal by having love affairs with wealthy men, two of whom were instrumental (synonym) in first setting up her

    asked by Henry2 on September 7, 2011
  50. Math (for PsyDag)

    This is the example i was given: The oranges in a box have a mass of 4680 gm.If the average mass of an orange is 97.5gm, find the number of oranges in the box. Total mass = average mass of an orange x number of oranges in the box. Therefore the number of

    asked by keisha on July 20, 2009
  51. chemistry

    to find the molarity of an aqueous solution of an ionic solid what do you need to know? a... mass of solid, formula of solid, volume of water b...moles of solid, formula of solid, volume of water c....mass of solid, formula of solid, volume of solution

    asked by Anna on November 30, 2010
  52. Algebra

    While traveling in a car, the centrifugal force a passenger experiences as the car drives in a circle varies jointly as the mass of the passenger and the square of the speed of the car. If the a passenger experiences a force of 100.8 newtons when the car

    asked by Anonymous on March 16, 2010
  53. english

    If you are writing a formal paper, how do you write 1600s (as in the century)? Is there an apostrophe: 1600's? Thank you for using the Jiskha Homework Help Forum. This is what the MLA guide says concerning dates: Full dates when written in the text may be

    asked by Annette on May 13, 2007
  54. English Expression

    Let's find out the differences between Parent's Day in our country and Mother's Day or Father's Day in America. In our country, a memorial day is set by a special date. However, in America, it can be set as an ordinal number day of a special month. For

    asked by John on April 26, 2008
  55. Julia - Green's theorem

    Sorry, I did not see your question ================================= Posted by julia on Monday, December 10, 2007 at 9:15pm. Can someone show me step by step how to work this problem out please. Let C be the triangle with vertices (0,0), (1,0), and (1,2).

    asked by Damon on December 11, 2007
  56. College Physic

    can someone help me with this question? Thank you! You have taken a summer job at a warehouse and have designed a method to help get heavy packages up a 15º ramp. In your system a package is attached to a rope, which runs parallel to the ramp and over a

    asked by Monet Nguyen on September 30, 2012
  57. Science

    Unit 3 Test Multiple Choice Please select the correct response for the following questions. 1. What is the smallest part of all matter called? (1 point) * a. Element b. Atom c. Molecule d. Compound 2. Which of the subatomic particles is negative? (1 point)

    asked by Becky on November 10, 2016
  58. algebra

    he is missing 3 cents to buy an ice cream bar. she is missing 5 cents to buy the same ice cream bar. they combine their money but they are still 1 cent short. how much is the ice cream bar? Let x denote how much he has and y denote how much she has. Let p

    asked by alejandra on September 9, 2006
  59. chemistry

    Hello, I am having problem with two lab questions and was wondering if someone can help! 1. Calculate the percentage of the empty space in a face-centered cubic lattice, and show that it does not depend on the edge length of the unit cell ot on the size of

    asked by Dina on February 3, 2010
  60. chemistry help!

    Hello, I am having problem with two lab questions and was wondering if someone can help! 1. Calculate the percentage of the empty space in a face-centered cubic lattice, and show that it does not depend on the edge length of the unit cell ot on the size of

    asked by Dina on February 4, 2010
  61. statistics

    3. The table shows the heights of the winners and runner-ups of 8 presidential elections. Find the line of regression that predicts the runner-up's height given the winner's height. Determine if the regression line is a good predictor of heights for the

    asked by maczindahouse on May 16, 2019
  62. business-economics

    Suppose that there is a common resource of size y in a two period society. Each of two citizens, one and two, can withdraw a nonnegative amount c1 or c2 for consumption in period one, provided that c1+c2

    asked by quynh on September 14, 2011
  63. Quantitative, stastics and business

    A company has three machines A, B and C which all produce the same two parts, X and Y. of all the parts produced, machine A produces 60%, machine B produces 30%, and machine C produces the rest. 40% of the parts made by machine A are part X, 50% of the

    asked by Tofik on April 24, 2016
  64. Chemistry - Hybridization

    Can anyone help me with this questioin pleasee? Describe the orientation and relative energy levels of sp2 and sp3 orbitals with respect to unhyberdized orbitals (1s, 2s, 2px, 2py, 2pz orbitals) 1s and 2s are spherical. 2px, 2py, and 2pz are at 90o to each

    asked by Eunice on December 5, 2006
  65. AP Physics

    I have two problems i don't understand if you could solve and show me what you did I would appreciate it :) 1.A 62.0-kg person, running horizontally with a velocity of +3.54 m/s, jumps onto a 13.4-kg sled that is initially at rest. (a) Ignoring the effects

    asked by Deanna on December 5, 2010
  66. environmental science

    Hi. I was wondering if someone could help me grasp a concept. The concept is that soon the world will run out of natural resources to sustain life on Earth as the population increases. This idea is presented in a book I am currently reading, EO Wilson's

    asked by Lillian on August 4, 2007
  67. PHYSICS!

    IMAGINE- a building 6400km. high. On the ground floor, a person weighs 175lbs when he steps on a spring scale how much would the man weigh on the same scale if he were standing at the top floor? HINT: Note that 6400km is also the radius of the earth so

    asked by Anonymous on July 23, 2012
  68. Physics

    The driver of a car on a horizontal road makes an emergency stop by applying the brakes so that all four wheels lock and skid along the road. The coefficient of kinetic friction between tires and road is 0.39. The separation between the front and rear

    asked by zack on January 14, 2013
  69. Earth Science

    I need help with the following Lab due tonight, 7/30/12, as I feel completely lost and would appreciate the help. The lab goes as follows: Design an experiment that illustrates the determination of the density of a cylindrical object found in the Lab Kit.

    asked by Joe on July 30, 2012
  70. accounting

    amair started the business with a capital of rs60000 on 1jan 2009 during the year he had with drawn goods rs8000 and cash rs5000for personal use he has also paid life insurance premium rs.2000 he had aiso introduced additional capital of rupees 20000 on

    asked by misba on June 3, 2012
  71. Elements of University Composition and Communicati

    Each of the following sentences has one grammatical error. The errors are in one of the following four categories: subject–verb agreement, run-on sentence, verb form and tense, or sentence fragment. Read each of the sentences and write the type of error

    asked by Meaghan on February 21, 2011
  72. Cross-Cultural Art Project

    http://www.google.com/search?source=ig&hl=en&q=Jhonen+Vasquez Have fun. =) Hi everyone, My art class is studying artwork from around the world, and as part of our midterm projects we have to research a particular artist who represents one of the cultures

    asked by Writeacher on February 26, 2007
  73. PHYSICS--SHM

    A pendulum consists of a uniform disk with radius r = 10 cm and mass 545 g attached to a uniform rod with length L = 500 mm and mass 300 g. (figure: one end of the rod attach to a pivot and the other end attach to the center of the disk) (a) Calculate the

    asked by wooh on January 27, 2007
  74. Psychology

    A school counselor tests the level of depression in fourth graders in a particular class of 20 students. The counselor wants to know whether the kind of students in this class differs from that of fourth graders in general at her school. On the test, a

    asked by Anonymous on August 28, 2010
  75. PSY

    A school counselor tests the level of depression in fourth graders in a particular class of 20 students. The counselor wants to know whether the kind of students in this class differs from that of fourth graders in general at her school. On the test, a

    asked by Anonymous on October 11, 2009
  76. american history

    1. What was the main reason that early settlers gradually spread across the Americas? (1 point) They were constantly under attack from neighboring tribes. They often relocated to find more favorable farming conditions. They traveled far and wide to trade

    asked by helpppp on September 1, 2016
  77. To "liz" - English?

    I'm looking for scholarly articles on: Low-income and divorced families beliefs about their role in children's academic learning and the influence of neighborhood quality on adolescent's educational values and school effort. Look for scholarly articles

    asked by Writeacher on May 17, 2011
  78. Calculus

    The machine earns the company revenue at a continuous rate of 62000 t + 38000 dollars per year during the first six months of operation, and at the continuous rate of $69000 per year after the first six months. The cost of the machine is $170000. The

    asked by Will on November 30, 2010
  79. Math

    3. In the small country of Varia, a bill becomes law only if of the senators approve it. What percentage is ? (1 point) 53% 58% 68% 88% 4. Write the percent 96.55% as a decimal. (1 point) 9655 965.5 0.9655 9.655 5. Liam wants to buy a bicycle that costs

    asked by Jane on December 6, 2012
  80. English

    Can you check these statements for me, please? 1) What did you have as a drink/to drink? I had a coke. 2) Winston is attracted by the telescreen, which shows a report about the big iron. The Party has taken control (?) of his life 3) The street, in which

    asked by Franco on January 19, 2011
  81. Math

    There are five Voting Districts in the City; District A with 877 constituents, District B with 1062 constituents, District C with 1364 constituents, District D with 1518 constituents, and District E with 1933 constituents. There are 14 available on the

    asked by Asia on February 1, 2017
  82. stats

    The following data represents Total Credit Hours from our class survey. 90 54 98 45 65 43 12 48 56 12 15 60 38 18 67 125 50 43 26 64 22 52 69 You may use your calculator to find the following statistics: Considering the Total Credit Hours data from our

    asked by Angel on September 18, 2014
  83. math

    A right rectangular prism is intersected by a horizontal plane and a vertical plane. The cross section formed by the horizontal plane and the prism is a rectangle with dimensions 8 inches and 12 inches. The cross section formed by the vertical plane and

    asked by Tim on December 2, 2015
  84. Math Help

    For the pair of supply-and-demand equations, where x represents the quantity demanded in units of 1,000 and p is the unit price in dollars, find the equilibrium quantity and the equilibrium price. 2x + 9p - 93 = 0 and 3x - 14p + 108 = 0 a. equilibrium

    asked by Robbi on October 19, 2016
  85. trignonmetry

    6. Prove that tan λ cos^2 λ + sin^2λ/sin λ = cos λ + sin λ 10. Prove that 1+tanθ/1-tanθ = sec^2θ+2tanθ/1-tan^2θ 17.Prove that sin^2w-cos^2w/tan w sin w + cos w tan w = cos w-cot w cos w 23. Find a counterexample to shows that the equation sec

    asked by yoshi on December 16, 2012
  86. trigonometry help me

    6.Prove that tan y cos^2 y + sin^2y/sin y = cos y + sin y 10.Prove that 1+tanθ/1-tanθ = sec^2θ+2tanθ/1-tan^2θ 17.Prove that sin^2w-cos^2w/tan w sin w + cos w tan w = cos w-cot w cos w 23.Find a counterexample to shows that the equation sec a – cos

    asked by eddy on January 2, 2013
  87. MTH233/statistics UOP

    A car company says that the mean gas mileage for its luxury sedan is at least 21 miles per gallon. You believe the claim is incorrect and find that a random sample of five cars has a mean gas mileage of 19 miles per gallon and a standard deviation of 4

    asked by sue on July 27, 2010
  88. math 117

    A passenger train can travel 325 mi in the same time a freight train takes to travel 200 mi. If the speed of the passenger train is 25 mi/h faster than the speed of the freight train, find the speed of each. Speed = distance/time Therefore time =

    asked by Diana on July 11, 2007
  89. English

    Does any one know what the poet means by these lines in this poem? "Storm clouds are gathering The wind is gonna blow The race of man is suffering And I can hear the moan," Thank you :) Alone Lying, thinking Last night How to find my soul a home Where

    asked by Gaveen on March 3, 2010
  90. Math for teachers

    Find A ¾ B, given A = {people who are less than 20 years old} and 12) ______ A) {all people in the world} B) {people who are less than 20 years old and people who have a job} C) {people who are less than 20 years old or people who have a job} D) {people

    asked by cassie on February 20, 2011
  91. chemistry

    Suppose you take a trip to a distant universe and find that the periodic table there is derived from an arrangement of quantum numbers different from the one on Earth. The rules in that universe are: 1. principal quantum number n = 1, 2, . . . (as on

    asked by Anonymous on April 2, 2013
  92. Physics

    You drop a 2 kg textbook to a friend who stands on the ground 10m below the testbook with outstreatched hands 1.5m above the ground. a) how much work W_g is done on the textbook by the gravitational force as it drops to your friend's hands? b)What is the

    asked by Jamie on January 2, 2007
  93. Chemistry HW!!!

    1. If I dilute 75 mL of 0.50 M CaF2 solution to a final volume of 375 mL, what will be the molarity of the resulting solution? 2. What will be the final volume of the solution be if I start with a 250 mL of 1.38 M MgCl2 solution to make a solution with a

    asked by Theresa on March 11, 2015
  94. Calculus

    using the following information in place of that in the book. The machine earns the company revenue at a continuous rate of 50000 t + 35000 dollars per year during the first six months of operation, and at the continuous rate of $60000 per year after the

    asked by Erika on December 1, 2010
  95. Dr.Bob222- IChemical formulas&Reactions

    When aqueous copper(II)chloride reacts with aqueous ammonium phosphate, soluble ammonium chloride forms and copper(II) phosphate precipitates out of solution. 1. Write the balanced molecular equationfor this reaction. 2. Write the balanced complete ionic

    asked by chrissy on January 3, 2007
  96. statistics

    4 Find: a. The z score for each male salary, based on only the male salaries. b. The z score for each female salary, based on only the female salaries. c. The z score for each female compa, based on only the female compa values. d. The z score for each

    asked by Anonymous on January 19, 2014
  97. algebra

    Find the domain and range of the relation and determine whether it is a function? Answers are Domain x>1 range y>0yes it is a function Domain all real numbers,range all real numbers yes it is a function Domain positive integers, range positive integers no

    asked by snow on March 12, 2014
  98. Calculus

    The tank shown is full of water. Given that water weighs 62.5 lb/ft3, find the work required to pump the water out of the tank. The tank shown is a hemisphere with r = 5 ft. The water is to be pumped out at the top. First I solved for ri, ri / (5 - xi) = 5

    asked by COFFEE on June 22, 2007
  99. Physics Please COULD SOMEONE HELP ME ASAP PLZ

    When an object is placed 55.0cm from a certain converging lens, it forms a real image. When the object is moved to 45.0cm from the lens, the image moves 6.00 cm farther from the lens. Find the focal length of this lens? Please someone help me out I tried

    asked by Laila on March 27, 2013
  100. Pre-Calc

    Two lookout towers on Mount Abraham and Snow Mountain are 29 miles apart. A fire warden in each tower sees a forest fire. From Mount Abraham the angle formed with the line of sight to the fire and the line of sight to the other tower is 44 degrees. From

    asked by Allan on December 11, 2012

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