Questions Asked on
November 19, 2013

  1. statistics

    A data set includes body temperatures of healthy adult humans for which x= 98.2 and s=0.64 F. Complete parts a) and b) below a) what is the best point estimate of the mean body temperature of all healthy humans? The best point estimate is F. b) Using the

    asked by anonymous
  2. statistics

    In a study designed to test the effectiveness of magnets for treating back pain, 40 patients were given a treatment with magnets and also a sham treatment without magnets. Pain was measured using a scale from 0 to 100. After given the magnet treatments,

    asked by Sharie
  3. chemsitry help again please

    Write the formula of the conjugate base for acid HClO2 .

    asked by chelsea
  4. Physics

    A woman on a bridge 75.0m high sees a raft floating at a constant speed on the river below. She drops a stone from rest in an attempt to hit the raft. The stone is released when the raft has 7.00m more to travel before passing under the bridge. The stone

    asked by Bob
  5. Trig - Law of sines and cosines

    ABC is an equilateral triangle with side length 4. M is the midpoint of BC, and AM is a diagonal of square ALMN. Find the area of the region common to both ABC and ALMN. I drew the diagram but I don't know how to find the answer? I think it has something

    asked by Sam
  6. English (phrasal modals)

    Zach used to work at an independent record label. Negotiating could be exciting, but he was supposed to slant everything in the label’s favor. Some reps used questionable tactics. He couldn’t look at himself in the mirror if he treated people like

    asked by Claire
  7. math

    Two thirds the sum of 30 and a number is 26.

    asked by Davina
  8. chemistry

    Hydrogen gas can produced by the reaction between metallic aluminum and aqueous hydrochloric acid 2Al+6HCl----2AlCl3+3H2 Hydrogen gas produced by this reaction is typically collected via water displacement, during which time the hydrogen gas becomes

    asked by shadow
  9. Engish

    The weather is the condition of the atmosphere in one area at a particular time, for example if it is raining, hot of windy. (In this sentence can we use ' whether' instead of 'if' after 'for example' to have the same meaning?) English - Writeacher,

    asked by rfvv
  10. Math

    Suppose that it takes Sally 3 hours to mow, and it takes Tom 4 hours to mow the same lawn; Tom's mower is less powerful than Sally's. Without using algebra determine how long it would take Sally and Tom to mow the lawn if they worked together using both

    asked by Nicholle
  11. cal

    Evaluate dy/dt for the function at the point. y√x+1 = 12; dx/dt = 8, x=15, y=3

    asked by tony
  12. chemistry

    The letters CHEMISTRY were spray painted in blue paint on the snow. After a while the sun comes out and the snow under the blue paint melts while the snow around the letters do not. Why did the snow under (rather than around) the blue paint melt?

    asked by Heather
  13. Check my answers 6 ?s- Physics

    What is a free body diagram? (Points : 1) a drawing of an object in free fall a diagram showing all the forces acting on an object but not its surroundings

    asked by Gianna
  14. Math

    How many integer palindromes are between 10,000 and 70,000 and how many of those are even?

    asked by Jared
  15. math

    On a map of the Fox River, 1 centimeter represents 6.5 kilometers. If a trail by the river is actually 26.65 kilometers long, what is the length of the river on the map?

    asked by nancy
  16. Chemistry

    A student ran the following reaction in the laboratory at 327 K: CH4(g) + CCl4(g) 2 CH2Cl2(g) When she introduced 4.07E-2 moles of CH4(g) and 7.57E-2 moles of CCl4(g) into a 1.00 Liter container, she found the equilibrium concentration of CH2Cl2(g) to be

    asked by Jessica
  17. Health (Ms. Sue)

    Compare the effects of stimulants, depressants, opiates, and hallucinogens on the body and behavior. A: 6. Depressants slow down a person’s behavior and the part of the central nervous system, which leads to symptoms such as drowsiness, relaxation,

    asked by Anonymous
  18. math

    when invested at an annual interest rate of 4.7% an account earned 1290.33 of simple interest in 3 years how much money was originally invensted

    asked by Anonymous
  19. Pre-Calculus

    The graph of f(x)= (x^2 - 11x + 18)/(x-9) consists of a line and a hole. Find the equation of the line and the coordinates of the hole. I really have no idea how to do this. I tried factoring it and ended up with (x-2), but I don't know how that helps me.

    asked by Ann
  20. statistics

    A data set includes 108 body temperatures of healthy adult humans for which x is 98.2 degrees and s is 0.64 degrees. What is the best point estimate of the mean body temperature of all healthy humans?

    asked by Shar
  21. Statistics

    Create a null hypothesis for the following research questions: a. What are the differences between emergency room shifts on medication errors? b. On a clinical trial of a new drug, what will be the effects over a currently used drug?

    asked by Anonymous
  22. algebra

    suppose you invest a certain amount of money n an account that pays 11% interest annually, and 4000 more than that in an account that pays 12% annually, How much money do you have in each account id the total interest for a year is 940

    asked by Anonymous
  23. Social Studies

    Which of the following is most likely a piece of modern Chinese state propaganda? a. a short film promoting the Cultural Revolution. b. a statue showing the modern thinker Confucius. c. a poster supporting the one-child policy. d. a website giving

    asked by Anonymous
  24. English

    Pick the correct letter for the analogy below. Please correct me if I'm wrong!! meditation: church:: A. calibration: math B. skating: rink C. watch: time D. collaboration : army Is it A?

    asked by Hannah
  25. World History

    For my research project, I need to choose an absolute monarch. I want to do one on a monarch/emperor/king from Vietnam because I have Vietnamese origins and am interested in learning more about its history. Is there any well known Vietnamese absolute

    asked by Allie
  26. parts of speech

    Which verb tense indicates continuing action? A. Present B. Past perfect C. Future D. Progressive

    asked by Tricia
  27. Chemistry

    How many moles of CaCl2 are produced when this reaction is started with 4.70 grams of chlorine gas?

    asked by Elizabeth
  28. English

    1. He was excited to hear the news. 2. He was excited that he heard the news. (Are both the same? Or does #1 mean #2-2 as follows?) 2-2. He was excited that he would hear the news. 3. He was excited to watch the game. 4. He was excited that he watch the

    asked by rfvv
  29. algebra 2

    15 seconds after the buzzer, the teacher still has 135 meters to go to the finish line. 32 seconds after he left the starting line, the teacher has only 50 meters more to run. 22 seconds after the buzzer, Usain is 189 meters from the finish line. 36

    asked by Anonymous
  30. math 115

    Let x be a continuous random variable that follows a normal distribution with a mean of 200 and a standard deviation 25. Find the value of x so that the area under the normal curve between ì and x is approximately 0.4798 and the value of x is greater than

    asked by louise
  31. chemistry

    In the following reaction, how many liters of carbon dioxide, CO2, measured at STP, would be produced from the decomposition of 143 g of magnesium carbonate, MgCO3? MgCO3----MgO+CO2

    asked by shadow
  32. Chemistry

    Name the straight-chain alkane that is a constitutional isomer of 2,4-dimethylhexane. Pls help

    asked by Mx
  33. maths

    A person drives 500 km in 6 months. How many km will that person drive in 3 years?

    asked by fai
  34. English (concrete nouns)

    Read the passage below and answer the following question: Zach enjoyed biking to his job at Bistro Café. The early morning ride gave some serenity to his hectic schedule. Opening the restaurant allowed him to get everything ready before the rest of the

    asked by Lauren
  35. Geometry (math)

    Suppose line p is perpendicular to line s and line q is perpendicular to line s. are p and q parallel under all circumstances? Draw a figure to illustrate your answer . I doubt if we can post pictures on this,because my question asks to draw a figure.I

    asked by Naila dar
  36. statistics

    A group of 49 randomly selected construction workers has a mean age of 22.4 years with a standard deviation of 3.8. According to a recent survey, the mean age should be mu=21.9. Test this hypothesis by constructing a 98% confidence interval for the

    asked by Cheryl
  37. English

    Read the passage below and answer the question: Jack: I’ll be there in 20 minutes. I’m stopping at the store to pick up some batteries. Do you need anything? Mike: Will you buy some coffee for me? I’ll pay you back when you get here. Which statement

    asked by Dave
  38. Social Studies (History)

    What message does The New Colossus convey to would-be immigrants?

    asked by Nicole
  39. algebra

    i need help: A national achievement test is administered annually to 9th graders. The test has a mean score of 100 and a standard deviation of 15. If John’s z-score is 1.20, what was his score on the test?

    asked by mufasa
  40. English

    Pick the correct letter for the analogy below. Please correct me if I'm wrong!! toe: foot:: A. nose: face B. hand: arm C. finger: hand D. limb: tree

    asked by Hannah
  41. English

    Pick the correct letter for the analogy below. Please correct me if I'm wrong!! A. thermometer: heat B. barograph : stocks C. seismograph : tremors D. telegraph: sound Is it B?

    asked by Hannah
  42. English

    Pick the correct letter for the analogy below. Please correct me if I'm wrong!! thermometer: heat:: A. monograph: books B. barograph : stocks C. seismograph : tremors D. telegraph: sound Is it B?

    asked by Hannah
  43. News

    Hi I need help determining the significance and impact of this story from fox news Nancy Pelosi defended her rhetoric leading up to a passage of the 2010 health care law while seeking to minimize the reports to unrest in her caucus and the potential for

    asked by Blaze
  44. 6th grade math

    Can you check this problem, please? n/((3/4))=5/9 Ans: multiply both sides by (3/4) n = 5/9 * 3/4 n = 15/36 n = 5/12

    asked by Alex
  45. math

    using your answer to the question above what is the net dollar amount of that rose order?

    asked by belinda harris
  46. Advanced Functions

    x and y represent two angles in standard position. x has its terminal arm in the first quadrant and y has its terminal arm in the third quadrant. If cosx=5/13 and cosy = -5/13 then find the value of 2sinx+2siny+2cosx-2tanx+tany+2cosy

    asked by Sara
  47. MATH

    This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).

    asked by PEBBLES
  48. PRECALCULUS

    Solve the equation in the indicated domain. 1. 2cos^2 x-5cos x +2=0 x E[0,360) 2. sin^2 x+5 sin x +6=0 x E[0,360)

    asked by Anonymous
  49. Chemistry

    How many of O is in the formula 4Cu(OH)2 ? (The 2 is the subscript)

    asked by Anonymous
  50. Dau

    2. A sample of a gas occupied a volume of 1.40 liters when the pressure was 768 torr and the temperature was 26.9 °C. The volume of the system was readjusted to 2.16 liters by changing the temperature. What was the temperature in the system?

    asked by Noura
  51. physics

    Two blocks are connected by a string over a frictionless, massless pulley such that one is resting on an inclined plane and the other is hanging over the top edge of the plane. The inclined plane is inclined at an angle of 37 degrees. The hanging block has

    asked by Haff
  52. Trigonometry/Geometry

    In most geometry courses, we learn that there's no such thing as "SSA Congruence". That is, if we have triangles ABC and DEF such that AB = DE, BC = EF, and angle A = angle D, then we cannot deduce that ABC and DEF are congruent. However, there are a few

    asked by Sam
  53. tech

    when you save documents it is important to check the ___ at the top of the navigation window to insure you are saving the file in the correct location

    asked by Anonymous
  54. algebra

    What is 499.79-15099 million dollars

    asked by Anonymous
  55. Advanced Functions

    Determine an expression using trigonometric ratios of special angles that simplifies to an answer of sqrt3/2. Use three different angles.

    asked by Sara
  56. Science

    What causes a diet coke to float and a regular coke to sink in water??

    asked by 
  57. statistics

    You randomly choose 16 unfurnished one-bedroom apartments from a large number of advertisements in your local newspaper. You calculate that their mean monthly rent is $613 and their standard deviation is $96. Does this SRS give good reason to believe that

    asked by arshi
  58. Advanced Funtions

    Are there any angles x and y that satisfy sin(x+y)= sinx+siny? Use an example to explain your answer.

    asked by Sara
  59. English - concrete nouns

    Is there anyway a sentence can be written to portray the word "job" as a concrete noun? Or is "job" always going to be an abstract noun?

    asked by Anthony
  60. English

    1. This book was the most helpful for my homework. 2. This book was most helpful for my homework. 3. Tom is the youngest of his brothers. 4. Tom is youngest of his brothers. 5. He is the tallest in his class. 6. He is tallest in his class. (Which one is

    asked by rfvv
  61. literature

    I have one more confusing question regarding this. And Thank you Ms.Sue for answering the last question! Franklin's humor in Witch Trial at Mt. Holly depends upon the belief that... a)the belief that religion takes precedence over science b)the belief that

    asked by jason
  62. Calculus

    Given f''(x)= -4sin(2x) and f'(0)=4 and f(0) =-6. Find f(pi/2)

    asked by JAYZ
  63. Language Arts question

    Identify the simple predicate in the sentence below. This best-selling novel is unavailable for the next three weeks. (1 point) Is*** Is unavailable for the next three weeks novel Correct?

    asked by Gabby
  64. Two Grammar Questions

    1. I don’t want to let go; I love this thing.-------> Is the semicolon used correctly? 2. "Why does that need to happen," asked my friend.------> Do I need a question mark in the quotes or is the comma used correctly?

    asked by Anonymous
  65. Maths

    D(5)= 50e^-2 How would I solve it from here?

    asked by Eren Jaeger
  66. math

    What fraction is greater using approximation 13/30 or25/41

    asked by sky
  67. Math Help

    This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).

    asked by Tina
  68. math

    What fraction is greater using approximation 13/30 or25/41

    asked by sky
  69. Health (Ms. Sue)

    How does experimentation lead to drug addiction?

    asked by Anonymous
  70. US History

    What level of public support or criticism did President Eisenhower earn as a result of the way he handled communist threats? How did the criticism bolster or hinder his presidency?

    asked by Uzair
  71. English

    1. This book was most helpful for my homework. 2. This book was the most helpful for my homework. (Which one is grammatical? Do we have to use 'the' or not in this case?) Q: How do we pronounce 'helpful'? (It's a little difficult to pronounce...Thank you

    asked by rfvv
  72. MATHS

    24 1c coins are set out in a row on a table Then every 2nd coin is replaced by a 2c coin every 3rd coin is replaced by a 5c coin every 4th coin is replaced by a 10c coin every 5th coin is replaced by a 20c coin every 6th coin is replaced by a 50c coin and

    asked by LARA
  73. English

    1. This book was most helpful for my homework. 2. This book was the most helpful for my homework. (Which one is grammatical? Do we have to use 'the' or not in this case?) Q: How do we pronounce 'helpful'? (It's a little difficult to pronounce...Thank you

    asked by rfvv
  74. Spanish Help please

    1. Mis padres piensan comprar un televisor muy grande con _____ para la sala de estar. A. un tostador B. un estante C. control remoto D. un bombillo I said B 2. ¿Por qué no vas a lavar la ropa hoy? No puedo porque no ____ la lavadora. A. conserva B.

    asked by Eri Uchi
  75. Science

    If a galaxy is 1,000 Mpc away, how fast isit recending?

    asked by Harold
  76. Chemistry

    If 5.0 grams of Zinc were added to 35.0 grams of H2SO4, how many grams of hydrogen gas would be evolved?

    asked by Elizabeth
  77. Physics

    A 1.6 kg mass and a 6 kg mass are connected by a massless string over a pulley that is in the shape of a solid wheel having a radius 0.13 m and mass 5.5 kg. Determine the linear acceleration of the blocks.

    asked by Mann
  78. social science

    formulate a 3 stage hypothesis from "How have Asia's achievments broadened our understanding of the influence of our neighbours ?" 1. The great wall od china is a famous tourist destination toAustralians as it helps us understand the Chinese culture and

    asked by cate
  79. brief calc

    evaluate the integral using integration by parts 7xe^-x

    asked by kyle
  80. algebra 2

    A cafeteria has 5 turkey sandwiches, 6 cheese sandwiches, and 4 tuna sandwiches. There are two students in line and each will take a sandwich. What isthe the probability that the first student takes a cheese sandwich and the next student takes a turkey

    asked by hannah
  81. math

    You randomly choose 16 unfurnished one-bedroom apartments from a large number of advertisements in your local newspaper. You calculate that their mean monthly rent is $613 and their standard deviation is $96. Does this SRS give good reason to believe that

    asked by arshi
  82. Scence

    the average temperature of the universe is 2.7 Kelvin. What temperature in degrees Fahreneit?

    asked by Harold
  83. English

    Jaycee______ himself yesterday when he ran into the goal post. A. Hurt B. Hurted

    asked by Maria
  84. physics

    a go-cart with a mass of 47.0kg is accelerating at a rate of 4.50m/s^2. What net external force is being applied to the go-cart?

    asked by america
  85. English

    1. You need to take a warm jacket. 2. - I know. 3. - I see. (What is the difference between #2 and #3 in answer?)

    asked by rfvv
  86. Child Develpoment

    I'm writing an essay/interview on my partner. Is the word neglected a right way to describe how you would think she felt. By the fact that she was dressed as a boy. I was the first girl after my brothers. My mom went crazy with the dresses that she had

    asked by Lilly
  87. physics

    A person puts a suitcase of mass 10.9 kg into a van, moving the suitcase a total distance of 0.90 m: 0.60 m up and 0.30 m horizontally. How much work is done by the person?

    asked by Anonymous
  88. math

    write the multiplication represented by the partial products. then write the product. 1. 800+280+60+21 2.600+40+180+12 3.2000+280+300+42 4.3600+300+300+25 5.2100+560+0+0 6.7200+270+320+12

    asked by krahman4
  89. Physics

    A container holds 1.3 mol of gas. The total average kinetic energy of the gas molecules in the container is equal to the kinetic energy of a 6.6x10-3 kg bullet with a speed of 670 m/s. What is the Kelvin temperature of the gas?

    asked by Carl
  90. math

    how to graph x-y=1 and x+2y=6

    asked by Anonymous
  91. Science

    If you are traveling 93,000 miles per second, and you needed to travel 620 trillion miles, how long would it take you?

    asked by Harold
  92. US-HISTORY

    List ways Woodrow Wilson disappointed people in the area of civil right...

    asked by DROSP
  93. physics

    Water flows at 0.860m/s from a hot water heater, through a 450-kPa pressure regulator. The pressure in the pipe supplying an upstairs bathtub 3.70 m above the heater is 414-kPa. What's the flow speed in this pipe?

    asked by sandra
  94. physics

    How big would a spherical helium balloon have to be to lift a 70kg person? The mass of the balloon's skin is 4.0kg

    asked by sandra
  95. algebra 2

    15 seconds after the buzzer, the teacher still has 135 meters to go to the finish line. 32 seconds after he left the starting line, the teacher has only 50 meters more to run. 22 seconds after the buzzer, Usain is 189 meters from the finish line. 36

    asked by reneet47
  96. Trig

    sin^2(34)+sin^2(48)+sin^2(56)+sin^2(42)

    asked by Cam
  97. physics

    Find the distance by which a 42cm diameter, 9.4m tall concrete column is compressed when it supports a 12900kg load

    asked by sandra
  98. socials

    What information is presented? How reliable is this information

    asked by harram
  99. BioLoGY___PLZ HELP

    In the moss plant,the sporophyte is sometimes referred to ad a 'semi-parasite'. Explain why this is so?

    asked by OwamIII
  100. Math

    Using the linear equation y = -3x + 5, complete the table of values (T-Chart) and choose the correct graph. X = -2 Y = _ X = -1 Y = _ X = 0 Y = _ X = 1 Y = _ X = 2 Y = _

    asked by Alan
  101. math

    Integers a,b,c,d and e satisfy 50

    asked by Yasin
  102. Physics

    calculate the acceleration of this system, assuming that there are no frictional forces between the table and Block A. Block A is sitting on a table connected by a rope to a pulley system and Block B is hanging off the table connected to the rope from the

    asked by JR
  103. chemistry

    if the %m/m of a solution of NaCl is 22%, how may grams of NaCl are present in 250g of solution?

    asked by lisa
  104. Physics

    A 400 gram block slides down a 30 degree incline from rest and reaches the bottom with a speed of 4.50 m/s. If the height through which the block falls is 2.0 meters, find the average frictional force that acted on the block.

    asked by Ashley
  105. geometry

    point g is the centroid of triangle ABC find value of x, FG=x+8 and AF=9x-6

    asked by Flash
  106. Geometry

    triangle HJK with median HN, JL, and KM and centroid P 1)PN=?HN 2)PL=?JP, KP?KM

    asked by Flash
  107. Chemistry

    A student ran the following reaction in the laboratory at 651 K: 2 NH3(g) N2(g) + 3 H2(g) When she introduced 8.75E-2 moles of NH3(g) into a 1.00 Liter container, she found the equilibrium concentration of H2(g) to be 0.119 M. Calculate the equilibrium

    asked by Jessica
  108. Social Studies (History)

    What significance does Emma Lazarus' choice of complex language have in her poem?

    asked by Nicole
  109. Math Questions

    1.) You have $22 in your bank account, and you deposit $11.50 per week. Your cousin has $218 in his bank account and is withdrawing $13 per week. The graph of this problem situation intersects at x=8. What does this mean? A. In 8 weeks, you will have

    asked by Lorri
  110. Chemistry

    A student ran the following reaction in the laboratory at 650 K: H2(g) + I2(g) 2 HI(g) When she introduced 0.204 moles of H2(g) and 0.229 moles of I2(g) into a 1.00 Liter container, she found the equilibrium concentration of I2(g) to be 5.77E-2 M.

    asked by Jessica
  111. math

    Jim is putting up fence posts around a rectangular garden. He used 50 posts and placed them 2 feet apart. The length of the garden is 30 feet. What is the perimeter of the garden? What is the area of the garden? thanks

    asked by ava
  112. Statistics, epidemio

    Im a medical student and i need to evaluate the Association between depression to cardiovascular disease. 1. what Type of Research Studies makes sense to do? 2.Design (Study period, epidemiological approach...) 2. Who are the participants in study and how

    asked by ana vera
  113. Physics

    Two spheres of equal mass are thrown against a wall with equal velocities. One sphere rebounds with 75% of its original speed, while the other sticks to the wall. Which imparted a greater impulse to the wall, the sticky ball or the rebounding ball? Justify

    asked by Ashley
  114. Chemistry

    Nitrate salts containing metal ions with the following electron configurations are added to water to make a solution. Predict whether the salt solution will be colored or colorless and explain the reasoning. a. [Kr]4d10 b. [Ar]3d3

    asked by Anonymous
  115. Math

    if takes bob 40 mins to type 6 pages how many pages can bob take type in 2.5 hours

    asked by Teresa
  116. Chemistry

    The most chemically reactive metal elements are the alkali metals. They react spontaneously with water or other substances in the atmosphere and must be stored under oil. a. What type of reactions will these metals undergo? b. Explain why these metals are

    asked by Heather
  117. Chemistry

    (a) Which of the following are requirements for anionic polymerization? --A double bond --End groups which can react by releasing a small molecule --A strong base to initiate the reaction --A strong acid to initiate the reaction --An electron-withdrawing

    asked by Anon
  118. Chemistry

    Using the heats of formation, determine what the heat of vaporization of water should be. Heat of formation of water: -248.8 kJ/mol The chemical reaction: 2CH4 + 3O2 => 2CO + 4H2O (balanced)

    asked by rinchan
  119. Physics

    The brick wall (k=0.80 W/m°C) of a building has 4.0 m X 10.0m dimensions and 15cm thick. How much heat in joules flows through the wall in 12-hour period when the average inside and outside temperatures are 20°C and 50°C?

    asked by Unkown_12345
  120. maths

    A community college has 2,000 students and 50 instructors. Next year the enrollment will be 6,000. How many new instructors should be hired if the college wants to keep the same student to instructor ratio?

    asked by fai
  121. Math/Science

    If it is 587 quadrillion miles across our galaxy and you are traveling at 93,000 miles per second, how long will it take you to go across it?

    asked by Harold
  122. Phyics

    Three moles of an ideal monatomic gas are at a temperature of 396 K. Then 2438 J of heat is added to the gas, and 897 J of work is done on it. What is the final temperature of the gas?

    asked by Carl
  123. Physics

    Three moles of an ideal monatomic gas are at a temperature of 396 K. Then 2438 J of heat is added to the gas, and 897 J of work is done on it. What is the final temperature of the gas?

    asked by Carl
  124. world history

    Which of the following is true of the Antarctic Treaty System? A. It bans commercial mining in Antarctica. B. It's actually the Society for the Geographic Exploration of Antarctica. C. It was established specifically to enforce ecological regulations. D.

    asked by Brianna
  125. Physics

    A juggler tosses a 0.4kg ball straight up at 8m/s, and then catches it at the same height . a. determine the acceleration on the way up and down b. determine the total amount of time spent in the air by the ball. (hint: you know the displacement)

    asked by Jake
  126. algebra 2

    (This homework question was removed due to a copyright claim submitted by NNDS.) I messed this up when I asked earlier is the right answer 3/4 ..please let me know

    asked by hannah
  127. Physics

    A juggler tosses a 0.4kg ball straight up at 8m/s, and then catches it at the same height . a. determine the acceleration on the way up and down b. determine the total amount of time spent in the air by the ball. (hint: you know the displacement)

    asked by Jake
  128. Social studies

    (respost) I chose the Airplane and I know that it was invented by the Wright brothers etc. But what I don't know what to write a paragraph on is "Describe the social impact the invention had on society". Please help! I really stuck here :? yes, thank you

    asked by Katy
  129. Biochemistry

    A protein sample is diluted 5-fold before measuring the protein concentration in a protein assay. In the protein assay, the concentration of the diluted protein is determined to be 0.27 mg/mL. What is the concentration of the original protein sample?

    asked by S
  130. chemistry

    In the following reaction, how many liters of carbon dioxide, CO2, measured at STP, would be produced from the decomposition of 143 g of magnesium carbonate, MgCO3? MgCO3---MgO+CO2

    asked by pip
  131. English

    Which word fits these sentences? A Persian rug with beautiful patterns lay/laid on the floor. I think lay for present tense? The temperature has raised/risen four degrees in the past hour. I think risen because there is no object?

    asked by Kelly
  132. Math

    This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).

    asked by Lana
  133. Social Studies (History)

    Is this a good journal entry for an Italian immigrant who came to America to New York? My family is made up of italians, i wanted to migrate to the Americas because my mother and father have died from a sickness no one could cure. It was hard for my

    asked by Nicole
  134. Math Help

    1.) You have $22 in your bank account, and you deposit $11.50 per week. Your cousin has $218 in his bank account and is withdrawing $13 per week. The graph of this problem situation intersects at x=8. What does this mean? A. In 8 weeks, you will have

    asked by Richard
  135. Pre-Calculus

    What is the equation of the line passing through (4, 2) and perpendicular to the line passing through the points (9,7) and (11,4)? Here's what I did: (7-4)/(9-11) = -3/2 y-2= (-2/3)(x-4) y-2=(-2x/3) + (8/3) y = (-2x/3) + 14/3 but the answer key says that

    asked by Ann
  136. algebra

    Determine whether the statement is true/ false 1. Traveling 10 miles in 2 hours is same as traveling 4 miles in one hour 2. If two triangles are similar, the length of their sides are the same 3. x/12 = 4/24. Then x=2 Multiple Choice. Choose the best

    asked by Sharon
  137. Math questions

    This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).

    asked by Pebbles
  138. physics

    What are the decibels 917m away from a 35.5 W sound source?

    asked by Sara
  139. Social Studies (History)

    What does The New Colossus indicate about changes occurring in American culture? (consider the differences between Old and New Immigrants and/or roles of women)

    asked by Nicole
  140. math

    A bag contains 11 red balls, 9 blue balls and x yellow balls. The probabilty of choosing a yellow ball at random is 1/6. What is the probability of not getting a blue ball.

    asked by danial
  141. electromagnets

    1.A proton travels at 4 x 10^6 m/s in a direction that is at an angle of 60 degrees to a magnetic field of 0.5 T. What is the magnitude of the force on the proton in Newtons? 2.What is the acceleration of the proton?

    asked by anton
  142. Math

    This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS). Whoever can help me, thanks so much! :)

    asked by Beau
  143. Physics

    A real spring does not oscillate forever. Instead, it eventually comes to a stop. Does this violate the Law of Conservation of Energy? Explain why or why not. I truly don't know what this means at all...can someone help me understand it?

    asked by Dr. Goodtimes
  144. Comm 215

    Do these look correct? Part I: True or False 1. The following word group is a FRAGMENT: That movie, one of my favorites. _X_True __False 2. The following word group is a FRAGMENT: The local baseball team, needing a good pitcher most of all. _X_True __False

    asked by John
  145. english 10

    I want to either study or to work abroad after I graduate.

    asked by Anonymous
  146. Geometry (math)

    Determine whether line QV and line RM are parallel,perpendicular or neither ?

    asked by Naila dar
  147. literature (bejamin Franklin)

    As a poor boy, Franklin realized that he could not buy many books, but he came up with an idea that could give people access to as many books as they wanted. This idea was essentially.. a) get a government grant b)get the government to buy the books c)have

    asked by jason
  148. Biology

    The half-life of carbon-14 is 5,700 years. If a sample originally had 26 g of carbon-14, how much would it contain after 22,800 years?

    asked by Emily
  149. Physics

    A 0.60kg basketball is dunked vertically downward so that it leaves the [layer's hand at 8m/s. Assume it is released when the bottom of the ball is at the rim (3.05 meters off the ground). a). find acceleration of the ball once it leaves the player's hand

    asked by Jake
  150. Science

    The Milky Way has a radius of approximately 100,000 light years. How many miles is that? How long would it take you to travel across our galaxy if you were traveling at 50% the speed of light (show work)?

    asked by Harold
  151. literature (bejamin Franklin)

    I have one more confusing question regarding this. And Thank you Ms.Sue for answering the last question! Franklin's humor in Witch Trial at Mt. Holly depends upon the belief that... a)the belief that religion takes precedence over science b)the belief that

    asked by jason
  152. math

    The Empire Carpet Company orders merchandise for $17,700, including $550 in shipping charges, From Mohawk Carpet Mills on May 4. Carpets valued at 1,390 will be returned because they are damaged. The terms of sale are 2/10, n30 ROG. The shipment arrives on

    asked by Jennifer
  153. Physics

    A 0.60kg basketball is dunked vertically downward so that it leaves the [layer's hand at 8m/s. Assume it is released when the bottom of the ball is at the rim (3.05 meters off the ground). a). find acceleration of the ball once it leaves the player's hand

    asked by Jake
  154. math

    Ned's Sheds purchases building materials from Timber town Lumber for $3,700 with terms of 4/15, n/30. The invoice is dated October 17. Ned's decides to send in a $2,000 partial payment. By what date must the partial payment be sent to take advantage of the

    asked by Jennifer
  155. physics

    What are the decibels 917m away from a 35.5 W sound source?

    asked by SDW
  156. Pre algebra

    Vernon drew an 8in. Wide by 5in.tall picture that will be turned into a 48 ft wide billboard.How tall will the actual billboard be?

    asked by Danielle
  157. Statistics

    How could you reword these research hypotheses to null hypotheses? a. Smoking during pregnancy increase the risk of a child being born prematurely. b. Regular exercises in older adults decreases blood pressure levels.

    asked by Anonymous
  158. Math

    Alex has 7 dimes and e nickels. What fraction of the coins are dimes? my answer is 7/10 is this correct/

    asked by Krish
  159. math/science

    need help to learn how to add unlike denominators? 5th grade

    asked by nathaniel
  160. Statistics

    given the following p values which would be considered more significant? a) p ≤ 0.3 b) p ≤ 0.02 c) p ≤ 0.25

    asked by Anonymous
  161. algebra

    A secretary at the police department makes $8 less per hour than the dispatcher. The combined hourly wage of the secretary and the dispatcher is $40. Which equation could be used to find the hourly wage of the dispatcher? A. 2x + 8 = 40 B. 2x − 8 = 40 C.

    asked by orpheus
  162. Math

    What is 17/50 as a percent and what is 1 3/10 as a percent and what is 1 5/10 as a percent

    asked by Anabelle
  163. statistics

    A study of the time spent shopping in a supermarket for a market basket of 20 specific items showed an approximately uniform distribution between 20 minutes and 40 minutes. What is the probability that the shopping rime will be a. Between 25 and 30

    asked by drea
  164. math-line graph

    x: 0, 1, 2, 3 y: 3, 2, 1, 0 I don't know what the pattern is in this x and y line graph. Please help me.

    asked by Mi
  165. education

    A Piagetian classroom emphasizes A. adult teaching of basic concepts with the use of repeated tests. B. directly rewarding children for the right answers. C. allowing children to independently work through difficult tasks. D. children’s discovery

    asked by Anonymous
  166. Math

    What is the smallest positive composite integer?

    asked by John
  167. English

    Which word fits these sentences? A Persian rug with beautiful patterns lay/laid on the floor. I think lay for present tense? The temperature has raised/risen four degrees in the past hour. I think risen because there is no object?

    asked by Kelly
  168. Math

    Simplify or solve as appropriate. Enter ns if there's no solution or all if the solution is all real numbers. 2 - 3(x + 5)) = 10 X = -7.6 7z + 6 - 2(z + 3) 5 * z 1/2x - 5 = 3/4x + 7 X = -48

    asked by Alan
  169. magentism

    6.A current of 20 mA flows in a single circular loop with a radius of 2 meters. A uniform magnetic field of 1.2 T points parallel to the plane of the loop. What is the magnitude of the magnetic moment of the loop in A-m^2? b. What is the magnitude of the

    asked by anton
  170. English

    Which word fits these sentences? A Persian rug with beautiful patterns lay/laid on the floor. I think lay for present tense? The temperature has raised/risen four degrees in the past hour. I think risen because there is no object?

    asked by Kelly
  171. Physics

    3. A positive helium ion He+ is released from rest at the surface of a +1000 V flat electrode. It travels in the +x-direction (in vacuum) across a 1 mm gap, passes through a small hole in a +0 V electrode that is parallel to the first one, and enters a

    asked by James
  172. math

    use an equation to solve the problem. what is 57% of 11

    asked by Anonymous
  173. us history

    This radical abolitionist founded the American Anti-Slavery Society and owned the newspaper the “Liberator” which reflected extremist anti-slavery views.

    asked by Anonymous
  174. U.S. History

    why do you think there were so many immigrants from russia? during the early twentieth century

    asked by anonymous
  175. Algebra

    How do you solve x/a - 1 = y/b for y? Algebra question I'm stuck on. Thanks!

    asked by This Girl
  176. Math

    Evaluate when x = 2, y = -5, z = 3. x^2 - y = 3 3z - 4(y + 1) - y^2 = 0 x - yz = -13

    asked by Alan
  177. Physics

    A 1000 kg car is going 8.90 m/s has a minimum braking distance of 6.0 meters. Find the average braking force exerted on the car during the stopping process.

    asked by Jessica
  178. algebra

    . There is a 10% chance it will rain on Saturday and a 30% chance it will rain on Sunday. What percent chance is there that it will rain on both Saturday and Sunday? A. 3% B. 15% C. 20% D. 40% would the answer be c

    asked by hannah
  179. Pre-Calc (Prove the identity)

    Prove the identity. (show your work please) tan(x − π/4)= (tan x − 1)/(tan x + 1) Thank you!

    asked by Kate
  180. Physics

    A rifle shoots 50.0 gram bullet with a muzzle a velocity of 350 m/s. How fast would a 80.0 kg person have to run in order to have the same amount of kinetic energy as the bullet in flight? If the bullet is shot vertically, what is the the maximum height

    asked by Jessica
  181. science

    a misconception of the sun is stronger at sunrise and weaker at sunset

    asked by dylan
  182. algebra 2

    A builder has 8 lots available for sale. · 3/4 Six lots are greater than one acre. · Two lots are less than one acre. answers I have to choose from 3/4 5/14 27/64 3/4 please help

    asked by hannah
  183. Precalculus

    Solve the equation in the indicated domain. 1. 2cos^2 x-5cos x +2=0 x E[0,360) 2. sin^2 x+5 sin x +6=0 x E[0,360) *assume x is theta

    asked by Anonymous
  184. Calculus

    Consider the function f(x) whose second derivative is f''(x)=5x+2sin(x). If f(0)=3 and f'(0)=3, what is f(3)?

    asked by Nate
  185. Math

    Solve the following. 2(x + 1) - 4

    asked by Alan
  186. Chemistry

    If 5.01 moles of an ideal gas has a pressure of 4.81 atm, and a volume of 86.95 L, what is the temperature of the sample in degrees Celsius?

    asked by Noelia
  187. Math

    Solve the following: -6x + 3

    asked by Alan
  188. Health (Ms. Sue)

    Describe how hallucinogens affect the mind. A: Hallucinogens affect the mind immensely as these distort perception and cause the user to experience things that are not real?

    asked by Anonymous
  189. chemistry

    Acetic acid (CH3COOH) has a Ka of 1.8x10^-5. a buffer is to be prepared with a pH of 5.00 from solutions of CH3COOH and sodium acetate (NaCH3COO) of the same concentration. How many mLs of NaCH3COO would have been added to 100 mL of CH3COOH to make the

    asked by robyn
  190. Physics - projectile

    a ball is thrown straight up at 50 m/s. What speed will it be when it returns to the thrower's hand?

    asked by Raina
  191. math

    How many (distinct) numbers between 0 and 1 (inclusive) can be expressed as a fraction m/n , where m and n are integers such that m+n=200 ?

    asked by Yasin
  192. math 2nd grade

    Write a sentence comparing one box of crayons has 16 and the other box of crayons has 24

    asked by Fran
  193. math

    application of Proportions-tic-tac-toe boards ?

    asked by Imari
  194. Health (Ms. Sue)

    Compare the effects of the following four commonly abused illegal drugs. a. marijuana b. inhalants c. club (designer) drugs d. anabolic steroids

    asked by Anonymous
  195. Math

    Contextualize this expression 4/5 divided by 3/6

    asked by Isabella
  196. Help:)

    Can someone help me with this? Someone was helping, but I'm still confused! Amos gets in an elevator at the 30th floor and begins to move downward at a speed of 8 feet per second. After 12 seconds, the elevator is 240 feet above the ground. A.) Let y= the

    asked by Pebbles
  197. Science please

    Kinetic energy and Potential energy are often considered to be forms of mechanical energy. List three other forms of energy and state a source for each.

    asked by anon
  198. Physics

    the higher the angle the longer an objecg will be in the air , but dose that mean it will go further ?

    asked by Naina
  199. physics

    Astronomers determine masses of distant objects by observing their smaller companions. For example, they can measure the period of a planet orbiting around a distant star, measure the radius of its circular orbit, and then employ Newtonian physics to

    asked by Yasin
  200. physics

    Astronomers determine masses of distant objects by observing their smaller companions. For example, they can measure the period of a planet orbiting around a distant star, measure the radius of its circular orbit, and then employ Newtonian physics to

    asked by Yasin
  201. Stats

    The random variable U has mean 10 and standard deviation 5.The random variable V is de ned by V =12(U + 5).Find the mean and standard deviation of V.

    asked by Sunny
  202. Math

    If $1500 is invested at an interest rate of 3.5% per year, compounded continuously, find the value of the investment after 3 and 6 years. What formula would i use?

    asked by Morgan
  203. Trig

    sqrt(100+(10cotx)^2)

    asked by Cam