Questions Asked on
April 27, 2014

  1. English help

    1. In a citation within a Works Cited page, which of the following should NOT be in italics? A. the title of a book B. the title of an editorial********* C. the title of an encyclopedia 2. You finished writing a research paper on the way modern technology

    asked by Cassie
  2. Probability

    For any given flight, an airline tries to sell as many tickets as possible. Suppose that on average, 10% of ticket holders fail to show up, all independent of one another. Knowing this, an airline will sell more tickets than there are seats available

    asked by qwerty
  3. Scoiolgy

    Mattie is a new sociology professor at the local college. During her first lecture, she noticed that some students were yawning. Based on her interpretation of the students yawning, Mattie has decided she is a boring teacher. This is an example of the

    asked by Angela
  4. physics

    How many grams of coffee must evaporate from 350 g of coffee in a 100-g glass cup to cool the coffee from 95.0ºC to 45.0ºC ? You may assume the coffee has the same thermal properties as water and that the average heat of vaporization is 2340 kJ/kg (560

    asked by Mohanad
  5. Algebra 1

    Can you please check my work and help me with the parts that I don't understand? For each event, choose the most appropriate term and solve the problem. 1. In a sweepstakes with nine hundred entries, the first winner selected receives the grand prize, the

    asked by Caroline
  6. computer literacy

    1. Which of the following options would return a true statement for the sentence: The sky is bluest early in the morning. (A) Sky and blue Sky not morning Sky or dark Sky and evening 2. Famed science fiction writer H. G. Wells once envisioned something to

    asked by Mariah
  7. Chemistry

    If 22.5 L of Oxygen reacted with excess hydrogen, how many liters of water vapor could be produced?

    asked by Addy
  8. math, geometry

    The bases of trapezoid ABCD are \overline{AB} and \overline{CD}. Let P be the intersection of diagonals \overline{AC} and \overline{BD}. If the areas of triangles ABP and CDP are 8 and 18, respectively, then find the area of trapezoid ABCD.

    asked by Anonymous
  9. physics

    Indigenous people sometimes cook in watertight baskets by placing hot rocks into water to bring it to a boil. What mass of 500ºC rock must be placed in 4.00 kg of 15.0ºC water to bring its temperature to 100ºC , if 0.0250 kg of water escapes as vapor

    asked by Mohanad
  10. Algebra 1

    Will you please check my work? :) Choose ALL (if any) applicable terms for the events described, then calculate the probability of the events. Jason has a cube with colored sides: red, orange, yellow, green, blue and purple. 1. Rolling a red or a primary

    asked by Caroline
  11. Chemistry

    An unknown gas is placed in a 1.500 L bulb at a pressure of 356 mm Hg and a temperature of 22.5 ∘C, and is found to weigh 0.8108g .What is the molecular mass of the gas?

    asked by Tyler
  12. chemistry

    When nitroglycerin (C3H5N3O9) explodes, it decomposes into the following gases: CO2, N2, NO, and H2O. If 239g of nitroglycerin explodes, what volume will the mixture of gaseous produces occupy at 1.00 atm pressure and 2678oC? a. Write a balanced equation

    asked by Suzanne
  13. physics

    If you pour 0.0100 kg of 20.0ºC water onto a 1.20-kg block of ice (which is initially at −15.0ºC ), what is the final temperature? You may assume that the water cools so rapidly that effects of the surroundings are negligible.

    asked by Mohanad
  14. physics

    A 0.250-kg aluminum bowl holding 0.800 kg of soup at 25.0ºC is placed in a freezer. What is the final temperature if 377 kJ of energy is transferred from the bowl and soup, assuming the soup’s thermal properties are the same as that of water?

    asked by Mohanad
  15. MATH_URGENT

    The bases of trapezoid ABCD are \overline{AB} and \overline{CD}. Let P be the intersection of diagonals \overline{AC} and \overline{BD}. If the areas of triangles ABP and CDP are 8 and 18, respectively, then find the area of trapezoid ABCD.

    asked by RhUaNg
  16. Algebra 1

    Can you please check my work? A city planning committee surveys 100 people waiting at a bus stop about the expansion of the public transportation system. Is this an example of a: random sample, systematic sample, self-selected sample, convenience sample,

    asked by Caroline
  17. Chemistry

    The compound M2X3 has a molar solubility of 0.0190 M. What is the value of Ksp for M2X3? Here are the choices: 1. 3.52 × 10^-6 2. 4.12 × 10^-5 3. 8.91 × 10^-8 4. 2.48 × 10^-9 5. 2.67 × 10^-7

    asked by Sara
  18. Chemistry

    A small cylinder of helium gas used for filling balloons has a volume of 2.85L and a pressure of 13300kPa at 25 ∘C.How many balloons can you fill if each one has a volume of 1.50L and a pressure of 1.26atm at 25 ∘C?

    asked by Tyler
  19. Chemistry

    For the formation of ammonia, the equilibrium constant is known to be 5.2 × 10^−5 at 25◦C. After analysis, it is determined that [N2] =3M and [H2]=0.8M, both at equilibrium. How many grams of ammonia are in the 10L reaction vessel at equilibium? Use

    asked by Sara
  20. life orientation

    list and discuss any four factors that could threaten or limit the core functions of the media.

    asked by samitan
  21. Math emergency I have 10 minutes to submit it.

    A supplier of portable hair dryers will make x hundred units of hair dryers available in the market when the unit price is p = sqrt(81 + 1.6x) dollars. Determine the producers' surplus if the market price is set at $11/unit. (Round your answer to two

    asked by Mia
  22. physics

    if 20g of steam at 100 c is mixed into 80 g of water at 20 c what is the final temperature if no heat lost

    asked by sara
  23. statistics

    For which of the following would it be most appropriate to use an ANOVA to analyze the data? A. A researcher is interested in determining the most effective format for advertising. He randomly assigns 60 people to one of three groups: (1) television

    asked by April
  24. Ethics in Criminal Justice

    Engaging in lawbreaking behavior to achieve a reputation or gain status among peers would be most consistent with which of the following stages of moral development, according to Kohlberg's model? A. Punishment/Obedience B. Law and Order C. Social Contract

    asked by Erica
  25. Math emergency I have 10 minutes to submit it.

    Find the area of the shaded region. y= x-2 y= sqrt(x)

    asked by Mia
  26. Math emergency I have 10 minutes to submit it.

    The demand function for a certain brand of CD is given by p = −0.01x^2 − 0.1x + 14 where p is the wholesale unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. Determine the consumers' surplus if the market

    asked by Mia
  27. Geometry

    In the diagram, a building casts a 35-ft shadow and a flagpole casts an 8-ft shadow. If the flagpole is 18 ft tall, how tall is the building? Round to the nearest tenth.

    asked by Okay
  28. Scoiolgy

    Gemeinschaft is to "intimate community" as Gesellschaft is to: A. the dawn of civilization. B. impersonal association. C. efficiency and perfection. D. mechanical society. D

    asked by Angela
  29. chemistry

    A 37.0 g mass of a metal was heated to 100°C and then plunged into 74 g of water at 24.0°C. The temperature of the resulting mixture became 28.0°C. (a) How many joules did the water absorb? (b) How many joules did the metal lose? (c) What is the heat

    asked by Kelsey
  30. Statistics

    One survey by the American Medical Association showed that among 785 randomly selected people who completed four years of college, 81.7% do not smoke. Use a 0.01 significance level to test the claim that people who completed four years of college are more

    asked by Allison
  31. English

    Which of the following describes literary analysis? Need help Please. A.writing that is vague and uncertain B.a central message about life C.determining the meaning behind events and characters’ actions D.written directions about how the actors sound and

    asked by Carlos
  32. Maths

    How do I write an equivalent expression to the expression below (17x 93) / (17x 97)

    asked by Pinks
  33. Economics

    Based on the Nielsen ratings, the local CBS affiliate claims its 11 p.m. newscast reaches 41% of the viewing audience in the area. In a survey of 100 viewers, 36% indicated that they watch the late evening news on this local CBS station. What is the

    asked by Ryan
  34. Scoiolgy

    As children, boys usually receive trucks, sporting equipment, and action toys. Girls receive stuffed animals and gifts that are more passive. Overall, what do sociologists call this sex-based criteria for the gifts children receive? A. Resocialization B.

    asked by Angela
  35. earth

    Which of the following illustrates the formation of a delta? A)Sediment is deposited where a river flows into an ocean or lake. B)Sediment is deposited where an ocean flows into a river. C)Sediment is deposited where a stream leaves a mountain range.

    asked by Haylee
  36. Probability

    natalie has a bag that contains eight marbles. she draws out a marble, record its color, and puts it back. if natalie repeats this eight times and does not record any red marbles, can she concludes that there are not any red marbles in the bag? Explain

    asked by Roy
  37. Chemistry

    At what temperature (∘C) will xenon atoms have the same average speed that Cl2 molecules have at 35∘C?

    asked by Tyler
  38. math

    write an equivalent expression to the expression below.(17*93) (17*97)

    asked by Nicole
  39. GEOMETRY

    In a arcade game, the "monster" is the shaded sector of a circle of radius 3 cm, as shown in the figure. The missing piece (the mouth) has a central angle of 60 degrees. What is the area of the monster in cm^2

    asked by PLEASE HELP
  40. Economics and statistics

    If the critical z value for a hypothesis test equals 2.45, what value of the test statistic would provide the least chance of making a Type I error? 3.74 10,000 2.46 4.56

    asked by Student5
  41. chem

    One mole of pentanol (C5H11OH) contains how many hydrogen (H) atoms?

    asked by jay
  42. physics

    The formation of condensation on a glass of ice water causes the ice to melt faster than it would otherwise. If 8.00 g of condensation forms on a glass containing both water and 200 g of ice, how many grams of the ice will melt as a result? Assume no other

    asked by sara
  43. Chemistry

    What is the molecular mass of a gas that diffuses through a porous membrane 1.86 times faster than Xe?

    asked by Tyler
  44. Math

    Three green balls and two yellow balls are placed in a hat. Two balls are randomly drawn without replacement. Let X be the number of green balls drawn. i)X=1

    asked by Naina
  45. Maths

    Mary wants to find the area of a rectangle 1/6 by 5/6 .How many unit squares with side length 1/6 yard would mary be able to use to title the rectangle?i got 106 is the correct

    asked by Pinks
  46. Scoiolgy

    Which statement best describes the difference between how Westerners and Easterners perceive the world and think about it? A. Westerners are more concerned with the background scenery in a picture, and Easterners are more concerned with the main character

    asked by Angela
  47. chemistry

    By titration it is found that 20.5 mL of 0.168 M NaOH(aq) is needed to neutralize 25.0 mL of HCl(aq). Calculate the concentration of the HCl solution

    asked by Morgan
  48. math

    At 3:00 PM a man 146 cm tall casts a shadow 136 cm long. At the same time, a tall building nearby casts a shadow 177 m long. How tall is the building?

    asked by laurens
  49. science/ ms. sue

    1. how does oil between machine parts reduce friction ?

    asked by rian
  50. physic

    A dielectric-filled parallel-plate capacitor has plate area A = 10.0cm2 , plate separation d = 7.00mm and dielectric constant k = 3.00. The capacitor is connected to a battery that creates a constant voltage V = 7.50V . Throughout the problem, use ϵ0 =

    asked by asasa
  51. ag 1

    The average daily high temperature for the month of may in ocaia Florida is appromaimated by thee function. F(n)=0.2n+80. Where n is the day of the month

    asked by Anonymous
  52. physics

    A coin is dropped from the Leaning Tower of Pisa. It starts from rest and falls freely. Neglecting air resistance, compute the coin's position and velocity at 1.0 s, 2.0 s and 3.0 s.

    asked by amiel
  53. Math

    Nene buys a bowling ball that weighs 10 pounds 13 ounces at a sporting goods store.What is the total weight of the bowling ball in ounces?

    asked by Pinks
  54. Chemistry

    Traffic on the German autobahns reaches speeds of up to 230 km/h.At what temperature (∘C) do oxygen molecules have this same average speed?

    asked by Tyler
  55. Math

    Mrs. Smith surprised her 30 students with cookies. She gave them a choice of chocolate chip, peanut butter and sugar cookies. 5 students had only a chocolate chip cookie, 3 had only a peanut butter cookie, and 2 had only a sugar cookie. 5 students had a

    asked by PLEASEEE HELP!
  56. Math- urgent

    Harry buys American cheese at the deli. He buys 1/4 pound at the cost of x dollars per pound. If he pays $12.25 for 2.5 pounds of cheese, what is the cost per pound? Please show your work.

    asked by Sarah
  57. statistics

    A basketball scout randomly selected 144 players and timed how long each player took to perform a certain drill. The times in this sample were distributed with a mean of 8 minutes. The population standard deviation was known to be 3 minutes. A. find the

    asked by Mark
  58. accounting

    After the accounts are adjusted and closed at the end of the fiscal year, Accounts Receivable has a balance of $673,400, and Allowance for Doubtful Accounts has a balance of $11,900. Describe how the accounts receivable and the allowance for doubtful

    asked by diane
  59. Life orientation

    List and discuss 4 factors that could influence the core functions of Media

    asked by Nokuthoba
  60. chemistry

    By titration it is found that 20.5 mL of 0.168 M NaOH(aq) is needed to neutralize 25.0 mL of HCl(aq). Calculate the concentration of the HCl solution

    asked by Morgan
  61. chemistry

    how do you see the answers to these stupid questions on this stupid website??????

    asked by Shonni
  62. Statistics

    Two groups of climbers (team A and Team B) attempt to climb Mount everest using different routes. The probability of Team A reaching the summit is .70, The probability of Team B reaching the summit is .85. A. Sue calculated the probability the both teams

    asked by Mark
  63. Chemistry

    Methane gas, CH4, is sold in a 43.0L cylinder containing 5.91kg .What is the pressure inside the cylinder (in kilopascals) at 21∘C?

    asked by Tyler
  64. epidemiology

    In another study, the smoking habits of 34,445 male physicians were obtained by mailed questionnaires. Deaths among these physicians over the subsequent years were identified though contact with the office of the Registrar General. The death rates from

    asked by Tracy
  65. problem solving

    Erica painted a picture of her dog. The picture has an area of 3600 cm square and is square. She has placed the picture in a frame that is 5 cm wide. What is the perimeter of the picture frame?

    asked by Anonymous
  66. Scoiolgy

    Tony is five years of age. He loves to dress up like the Lone Ranger and pretend to help people in need. According to Mead's theory, what stage best describes Tony's behavior? A. The imitation stage B. The game stage C. The play stage D. The fantasy stage

    asked by Angela
  67. Scoiolgy

    s Which of the following would be the best example of a total institution? A. A mental hospital B. A private university C. A parochial school D. A baseball team A

    asked by Angela
  68. Math 120

    Drop a stone in a well, the sound is heard 17 seconds later. How deep is the well in feet

    asked by Larry
  69. FIN1103-39

    You think in 15years, it will cost $214,000 to provide your child with a 4 year college education. Will you have enough if you take $75,000 today and invest it for the next 5 years with $1million

    asked by Carolyn
  70. Statistics

    Health issues due to being overweight affect all age groups. of children and adolescents 6-11 years of age,18.8% are found to be overweight. A school district randomly sampled 130 in this age group and found that 20 were considered overweight. at Alpha

    asked by Mark
  71. Scoiolgy

    George Herbert Mead indicate a child must learn to take multiple roles in the __________ stage of development. A. sensorimotor B. team games C. preoperational D. play A

    asked by Angela
  72. Statistics

    One survey by the American Medical Association showed that among 785 randomly selected people who completed four years of college, 81.7% do not smoke. Use a 0.01 significance level to test the claim that people who completed four years of college are more

    asked by Parker
  73. Chemistry

    What is the specific heat of an unknown substance if a 2.45g samples releases 12.9 cal as its temperature changes from 25.1 degrees C to 20.1 degrees C?

    asked by Ashley
  74. Computers

    An architecture provides a framework within which to identify, design, code and test the components or subsystems required for your game. It is necessary to know the purpose of each subsystem, what they exactly do, and which other subsystems they

    asked by Olumide Adesiyan
  75. Chemistry

    A solution formed by dissolving an antacid tablet has a pH of 9.18. Calculate [H+].

    asked by Anonymous
  76. Physics waves- check answers please

    1. A vibrating point on a spring travels 60 mm during three cycles. What is the amplitude of the vibration? my answer: I got 10 mm but I'm not sure if it is the correct answer. 2. For two connect pendulums to resonate, they must have the same: a) mass b)

    asked by Liz
  77. Precalculus

    I know I posted this question already ,but I posted the wrong one.... Sets A,B and C are subsets of U. U= positive integers less than 16 A= prime numbers B= factors of 36 C= multiples of 4 (A intersect B)' INTERSECT C {?} I meant INTERSECT not union! My

    asked by Anonymous
  78. physics

    A 1.50 ✕ 103 kg car starts from rest and accelerates uniformly to 17.1 m/s in 12.7 s. Assume that air resistance remains constant at 400 N during this time. (a) Find the average power developed by the engine. W (b) Find the instantaneous power output of

    asked by Anonymous
  79. physics

    how many gram of ice at 0 c can be melted by the heat released when one gram of steam condense to water at 100 c check my answer please and you deman i am sorry by accident i post it the previous question solution Qcold=-Qhot MLf(ice)=-MlV(water) Mice =

    asked by Mohanad
  80. science: biology

    The hyena is a carnivore. Justin claims that hyenas need plants to survive, but Kaden says that they don't because they only eat meat. Who is correct and why?

    asked by Anonymous
  81. chem

    what is the balanced equation for ozone gas reacts with 2,3,4,5-tetramethylheptane, CH3-CH(CH3)-CH(CH3)-CH(CH3)-CH(CH3)-CH2-CH3 , to produce carbon dioxide gas, CO2 , and water vapor, H2O

    asked by Kasia
  82. U.S History DBQ (Pls check my answer)

    Document 2 - As the woman suffrage movement gained momentum, Booker T. Washington issued the following statement to the New York Times: I am in favor of every measure that will give to woman, the opportunity to develop to the highest possible extent, her

    asked by Cassidy
  83. Physics

    Calculate the number of H2O molecules in a human body of mass 65.9 kg. Assume that, on average, water makes up 62% of the mass of a human body. (Use 1.0 u for the atomic mass of hydrogen, and 16.0 u for the atomic mass of oxygen.)

    asked by Steve
  84. Statistics

    the average numbers of hours a cat sleep is approximately normally distributed with a mean of 15 hours and a standard deviation of 1.7 hours; what percentage of cats sleep between 13 and 18 hours

    asked by Belinda
  85. epidemiology

    In another study, the smoking habits of 34,445 male physicians were obtained by mailed questionnaires. Deaths among these physicians over the subsequent years were identified though contact with the office of the Registrar General. The death rates from

    asked by Tracy
  86. Oscillations

    The E string of a violin has a linear density of 0.5 g / m and is subjected to a 80N of tension, tuned for a frequency = 660 Hz a) What is the length of the rope?

    asked by Vinicius
  87. algebra

    x5−8x4+28x3−56x2+64x−32=0

    asked by Sam
  88. Biology

    Punnett Square Help 1) Set up a Di-hybrid cross for these two traits (pod color and shape) Note:Green pods are dominate over yellow pods and inflated pods are dominant over constricted pods -Start off with both parents as heterozygotes/hybrids for BOTH

    asked by Sarah
  89. Scoiolgy

    __________ is credited with being the place where the Industrial Revolution began in 1765. A. The United States B. Great Britain C. Germany D. France B

    asked by Angela
  90. Chemistry

    Oxygen gas is commonly sold in 48.0L steel containers at a pressure of 130atm .What volume (in liters) would the gas occupy if its temperature was raised from 20.5∘C to 40.0∘C at constant 130atm ?

    asked by Tyler
  91. Chemistry

    A solution formed by dissolving an antacid tablet has a pH of 9.18. Calculate [H+].

    asked by Anonymous
  92. math/ratio

    apples,oranges and pears are packed into a basket in the ratio 3:5:1. there are 12 more oranges and pears than apples.how many fruits are there altogether?

    asked by wan
  93. Maths

    How can I write an equivalent expression to the expression below ( 17 x93) / ( 17 x 97

    asked by Pinks
  94. Physics waves- check answers please

    1. A vibrating point on a spring travels 60 mm during three cycles. What is the amplitude of the vibration? my answer: I got 10 mm but I'm not sure if it is the correct answer. 2. For two connect pendulums to resonate, they must have the same: a) mass b)

    asked by Liz
  95. Calculus

    The following are about an infinite region in the 1st quadrant between y=e^-x and the x-axis. B)Find the volume of the solid generated by revolving the region about the y-axis Part A was solved below. Does anyone know how to do Part B?

    asked by Tim
  96. science

    Given the following reaction: CaC2 + 2 H2O C2H2 + Ca(OH)2 How many moles of Ca(OH)2 will be produced if 5.800 g of CaC2 are reacted completely?

    asked by jay
  97. Math

    If I spend 2/3 of my allowance on CDs and 1/6 on DVDs how much did I save

    asked by Kyla
  98. CALCULUS

    two birds are flying along in 3-space. At time t, the first bird is at the point (x,y,z) on the line

    asked by AIRA
  99. Math

    A 12 cm by 12 cm ice cube tray is in the shape of a cuboid with twelve hemispheres inset. The depth of each hemispheres is 1 cm. a) If all the hemispheres were filled with water, calculate the total volume of water that the ice cube tray could hold. It is

    asked by Lucas
  100. history grade 3

    What happened to the immigrants while they were at Ellis Island?

    asked by kathy
  101. statistics

    If 30% of people in an area are registered voters and 15 people are selected at random from the area: A. what is the probability that at most 3 out of the 15 people are registered voters? B. could we have used the normal approximation to the binomial in

    asked by Mark
  102. Scoiolgy

    __________ is a position in life that one does not choose, but is awarded at birth or is related to the life course. A. Achieved status B. Status set C. Ascribed status D. Master status C

    asked by Angela
  103. phys

    A wheel starts from rest and has an angular acceleration of 4.0 rad/s^(2). When it has made 10 rev its angular velocity is:

    asked by jay
  104. chemistry

    What is the net ionic equations for: 1. Arsenic(III) iodide + Sodium sulfide 2. Lead(II) nitrate + Ammonium oxalate 3. Magnesium chromate + Copper(II) sulfate

    asked by Collin
  105. math

    Martin rides to Cambridge 30 miles away from home at the average rate of 10 miles per hour.He returns on a better road that is 50% longer where he can increase his rate by 100%.How much time does he save by taking the better road on his return trip? a. 2

    asked by thomas
  106. Math HELP HELP

    what about this one On a voyage to Atlantis, Ariel from The Little Mermaid decided to pick up shells so that she could make necklaces for her mermaid friends. She picked up 30 green shells, 35 blue shells, and 30 yellow shells. 17 of the green shells had

    asked by Alice urgent
  107. chemistry

    estimate the mass of BaSO4 that will be produced when a 100ml of a 2M solution of Ba(NO3)2 in water is added toa 100ml of a 2M solution of NaSO4 in water

    asked by Alex
  108. GEOMETRY

    ok so the question is The Great Pyramid at Giza has a sqaure base with sides if length 230 meters and a height of 146.7 meters ???

    asked by PLEASE HELP
  109. math

    The number of diagonals, d, in a polygon of n sides is given by the formula d=n^2-3n/2. If a polygon has 90 diagonals, how many sides has it? a. 8 b. 10 c. 12 d. 15 e. 20 please answer and explain

    asked by thomas
  110. ENG 098

    Can you convince people NOT to eat Oreos? Think of a famous person like an athlete, an actor, politician, or talk show hosts. Write two paragraphs: one to convince this person to purchase OREOS and another to convince this person not to purchase OREOS. You

    asked by Serria
  111. maths

    Simi reads 5/9 pages of a book. Gauri reads 1/2 part of the book. If Simi reads 5 pages more. What is the total number of pages in the book?

    asked by Nyami
  112. math

    Use this rule to find the number of feet of lumber in a log:"Take 4 inches off the diameter of the log, multiply the remainder ( in inches ) by one half ot itself, then by the length of the log in feet, and divide the product by 8." According to this rule,

    asked by thomas
  113. GEOMETRY !

    ***Sorry i forgot to add the actual question The Great Pyramid at Giza has a sqaure base with sides of length 230 meters and a height of 146.7 meters What is the volume

    asked by PLEASE HELP
  114. Epidemiology

    Evidence of an increased risk of lung cancer associated with cigarette smoking was sought by Doll and Hill. In one study, 649 lung cancer cases were matched by age, and gender to 649 controls; 647 of the cases and 622 of the control had a history of

    asked by Tracy
  115. Math

    bills' trail mix has 6 cups of walnuts and 10 cups of cranberries. using the same recipe, how many cups of walnuts go with 15 cups of cranberries

    asked by Mateo
  116. Chemistry

    At a pressure of 103kPa and a temperature of 22 degrees C, 52.9 g of a certain gas has a volume of 31.5 L. what is the identity of this gas?

    asked by Addy
  117. AlgebraII( Probability)

    1)a number less than 35 is chosen. 2)A prime number is chosen. 3) A multiple of 4 is chosen. 4)A perfect cube is chosen. Please help me.

    asked by Sasha
  118. Chemistry

    Prior to their phaseout in the 1980s, chemicals containing lead were commonly added to gasoline as anti-knocking agents. A 3.279 g sample of one such additive containing only lead, carbon, and hydrogen was burned in an oxygen rich environment. The products

    asked by Annabelle
  119. Math

    What is the Schlafli Notation?

    asked by Sara
  120. math

    Steve earned scores of 96 and 87 on his first two exams. What will his average grade be if he gets a 72 on his third exam?

    asked by sha
  121. history

    Theodore Roosevelt’s life was perhaps the perfect symbol for the United States. Which of the following was he not known for

    asked by debie
  122. statistics

    A random sample of 49 credit ratings is obtained, and it is found that they have a (sample) mean of 679.3 and a sample standard deviation of 95.9. Using a 0.05 level of significance, test the claim that these credit ratings are from a population with a

    asked by Parker
  123. Statistics

    A simple random sample of 27 adult mice has a length standard deviation of 0.66 mm. Using a 0.10 level of significance, does it appear that these mice come from a population with a length standard deviation of 0.87 mm?

    asked by Parker
  124. english

    plzzzz someone help fast i need to complete my aasignment tell me some points on unsafety of children in school buses and vans

    asked by betu
  125. Biology

    The gene encoding for body color in zombie flies is "X-linked". Gray bodies are the wild-type trait and blue bodies are caused by a mutation - Set up a cross between a male with a blue body and a female who is homozygous dominant for a gray body. Indicate

    asked by Sarah
  126. Precalculus

    For this problem I drew a Venn diagram.. Sets A,B and C are subsets of U. U= positive integers less than 16 A= prime numbers B= factors of 36 C= multiples of 4 (A intersect B)' union C {?} My answer: The apostrophe stands for negation! According to my Venn

    asked by Anonymous
  127. history grade 3

    Why did the immigrants have to go to Ellis Island

    asked by kathy
  128. history grade 3

    What happened to the immigrants when they left Ellis Island?

    asked by kathy
  129. modern wo rld history

    high school Did Kennedy avert the Cuban Missile Crisis?

    asked by kathy
  130. Help

    If upon retirement in 20 years Greg plans to invest 800,000 in a fund that earns 4 percent, What is the maximum annual withdrawal he can make over the following 15 years

    asked by Anonymous
  131. government

    What challenges does the United nations face in protecting human rights

    asked by snow
  132. Chemistry

    At 25C, an equilibrium mixture of gases con- tains 0.00680 mol/L PCl3, 0.0290 mol/L Cl2, and 0.00500 mol/L PCl5. PCl5(g) ⇀ ↽ PCl3(g) + Cl2(g) What is the equilibrium constant for the reaction? How would I do this? I'm so confused!

    asked by Sara
  133. Math

    Write the inequality and solve: The product of a number and 7 is less than 28

    asked by Ann
  134. U.S. History/U.S. government

    What does the fourth amendment basically say/protect?

    asked by INeedHelp
  135. geometry

    How would i Solve this ?? Secants DB and DE intersect the circle at F and C, respectively Screen shot below remove "()" What is length of DF I forgot the formula

    asked by D.
  136. MATH

    JOSH CAN JOG 1 AND 1 THIRD MILES IN A QUARTER OF AN HOUR. WHAT IS HIS AVERAGE SPEED IN MILES PER HOUR

    asked by SHAMPOW
  137. Calculus

    The following are about an infinite region in the 1st quadrant between y=e^-x and the x-axis. A) Find the area of the region B)Find the volume of the solid generated by revolving the region about the y-axis

    asked by Tim
  138. math

    A stick 35 inches long is to be cut so that one piece is 1/4 as long as the other. How many inches long must the shorter piece be? a. 5 b. 7 c. 10 d. 12 e. 15 please answer and explain

    asked by thomas
  139. Linear algebra

    Consider for every real number a the linear system of equations: { x +( a + 1 )y + a^2 z = a^3 { ( 1 - a )x +( 1 - 2a )y = a^3 { x +( a + 1 )y + az = a^2 b)Find the values of a for which the system has no solution, infinitely many solutions, and a unique

    asked by Elissa
  140. Math emergency I have 10 minutes to submit it.

    Find the area of the shaded region. y= 0 y= x^4-2x^3

    asked by Mia
  141. research

    what is the research problem discussed in the article: UNDER SURVEILLANCE: AN EMPIRICAL TEST OF THE EFFECTIVENESS AND CONSEQUENCES OF ELECTRONIC MONITORING? I have read this and I am totally lost. Please help

    asked by jo
  142. English Essay

    I'm writing an essay for To Kill A Mockingbird and the claim I came up for my essay is "Children are never too young to understand the realities of life." I'm writing the extended paragraph right now where I have to come up with a good example from the

    asked by Emma
  143. physics

    A highway is made of concrete slabs that are 14.0 m long at 20° C. (a) If the temperature range at the location of the highway is from -17.8° C to +40.8° C, what size expansion gap should be left (at 20° C) to prevent buckling of the highway? (b) How

    asked by Steve
  144. math (2)

    Find the area of the shaded region y= 2x/(x^2+4) from x= -2 and x= 2 Note: People have been telling me that the two lines do not intersect but they do there has to be an answer. please help me. Thanks

    asked by Mia
  145. All subjects

    I was wondering, what/how is the best way to study for a test?

    asked by Niall
  146. math

    A pond 100 feet in diameter is surrounded by a circular grass walk which is 2 feet wide .The number of square feet of grass on the walk is a. 4 pi b. 20 pi c. 196 pi d. 204pi e. 270 pi please answer and explain

    asked by thomas
  147. networks

    For N=4, L=4032, B=9600,P=1024,H=16,S=0.2, D=0.001, compute the end-to-end delay for circuit switching.

    asked by PLSSSS HELP
  148. networks

    Provide examples of an application most suited for circuit switching and packet switching

    asked by Olumide Adesiyan
  149. Physics

    A cue ball collides with two other snooker balls and comes to a complete stop. The angles between the centres at the point of collision are shown below. If the velocity of the incoming cue ball is 5 m/s, determine the velocities of all moving balls after

    asked by Olumide Adesiyan
  150. networks

    Could someone explain message switching in a way ill understand it pls

    asked by Olumide Adesiyan
  151. informal logic

    To criticize a deductive argument logically, one might:

    asked by Anonymous
  152. Math- urgent

    Z/2-6=4 What does z equal? Please show your work.

    asked by Sarah
  153. College algebra

    This year the state highway department in Montana purchased 276 identical trucks for official use. The purchased price was 5,680,088. Due to budget shortfall next year the department plans to purchase only 69 cars and 119 trucks. It will be charged the

    asked by Anonymous
  154. CALCULUS

    Determine the intervals for which the curve r(t)=4sin^3(t)i + 7cos^3(t)j is smooth on [0,2pai]

    asked by AIRA
  155. Physics

    A ammeter is to be constructed using a galvanometer that has a 2.00 mA full-scale deflection and internal resistance of 50.0 ohms. It must be good enough to detect 40 mA, which is the max current. How would one do this? How would you make a voltmeter able

    asked by Anonymous
  156. Math

    What is the interest due on $57,000 at 7 1/2% from June 2008 until today

    asked by Barbara
  157. math

    determine the intervals for which the curve r(t)=4sin^3(t)i+7cos^3(t)j is smooth on [0,2π

    asked by katie
  158. Chemistry

    dose the gasoline react with HCL 28%? if OK, what is its equation? Thanks

    asked by Ramtin
  159. math

    train a moving at 30km/hr passes station at 08:00.A train B travelling the same way at 45km/hr passes this station at 08:30, at what time will train B overtake A please can someone explain to me

    asked by wan
  160. algebra

    George has 25 marbles. he wants to divide them into two amounts hat show a ratio of 2:3 how many marbles are in each group?

    asked by Katie
  161. math ratio

    a:b=2:3,b:c=5:6 and c:d=3:8. FIND THE RATIO A:B:C:D.

    asked by wan
  162. Statistics

    A simple random sample of 27 adult mice has a length standard deviation of 0.66 mm. Using a 0.10 level of significance, does it appear that these mice come from a population with a length standard deviation of 0.87 mm?

    asked by Allison
  163. Economics

    what are welfare payments or consumer subsidies?

    asked by sinesihle
  164. MATHS

    SOLVE X/2+2Y/3=-1 AND X-Y/3=3USING SUBSTITUTION AND ELIMINATION METHOD

    asked by ANOSHA
  165. science

    a decrease in food miles will likely increase the environmental impact of any given food points. True or false

    asked by eieen
  166. math

    Formerly 1/6 of a pie cost 20 cents.Now the price of 1/8 of a pie is 30 cents.The per cent increase is a. 10% b. 20% c. 33 1/3% d. 50% e. 100% My answer is d, anybody can tell me right or wrong, if wrong tell me the answer 1/6 cost 20 cent 1/8 cost 30 cent

    asked by thomas
  167. Math - Trigonomety

    A plane is flying at a height of 1000 feet. A passenger on the plane sees a tree and realizes the angle of depression to the top of the tree is 15 degrees and the angle of depression to the bottom of the tree is 25 degrees. How tall is the tree?

    asked by Caleb
  168. Statistics

    The claim that "38% of those persons who retired from an industrial job before the age of 60 would return to work if a suitable job was available," is to be investigated at the 0.02 level of risk. If 86 out of the 200 workers sampled said they would return

    asked by Ryan
  169. english

    tell me some points on unsafety of children in school buses and vans

    asked by betu
  170. Math

    A model plane flies 18ft per 2 seconds. What is the plane's speed in miles per hour? Round to the nearest tenths.

    asked by Bill
  171. grammar

    how can I write an acrostic for the world fantasic

    asked by denise
  172. Math

    Solve: 5/6x -3=12

    asked by Nancy
  173. english

    I need to make a alternative cover and blurb for the book skellig, I have already done the corve I am stuck on the blurb. Help!!

    asked by adam
  174. Math

    Evaluate -3 *x^2+2*y^2 for x=-1 and y=4

    asked by Beth
  175. Algebra 1b

    An object 8.1 feet tall casts a shadow that is 24.3 feet long. How long in feet would the shadow be for an object which is 19.5 feet tall?

    asked by Kim Williams
  176. Math

    How many different ways can you write a^(m/n)?

    asked by Belle
  177. Math

    a random sample of 28 patients across the country had an average cost of 5250 with a standard deviation of 629.at a= 0.025 can it be concluded that the mean is less than 5400

    asked by Anonymous
  178. Psycholohy

    One way to measure the validity of a test would be to: you were testing for:

    asked by James
  179. math

    Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -9x2 + 2x + 4.

    asked by Sue
  180. The Metamorphosis by Franz Kafka

    In "The Metamorphosis" Part 1, Gregor stated that if it wasn't for his parents' debt, he would have given his notice at work long ago. What does this suggest about his transformation? A) It had actually been years in the making. B) It was evident only to

    asked by Isabella
  181. math

    At the end of spring training a football coach discharged 1/5 of his squad and asked the remaining 32 boysw to report on Labor Day. The number of boys on the squad at the end of spring training was a. 40 b. 80 c. 100 d. 120 e. 160 please answer and explain

    asked by thomas
  182. English 9

    Ok. well i we have to make a poem for Shakespeare birthday and it has to be 2 lines but i have no ideas and its super confusing !

    asked by ENGLISH NOOB
  183. Physics

    If a car engine has a power,P. Write an expression for the time it will take to accelerate from w to 4w. Note that P=wt where t is torque.

    asked by Jose
  184. English 9

    Like i get that example but unforunutly i wouldnt be able to use that because if she searched she would say im plagiarizing :'( Soo. Would this work P.S. do u see reply if i stay on same question ?? William Shakespeare was literature's Jewel He shouldn't

    asked by ENGLISH NOOB
  185. math

    AOD is a diameter of circle O. The coordinates of points A and D are (-11,-5)and (-3,-5)Find the area of circle O. a. 9 pi b. 16 pi c. 25 pi d. 64 pi e. 116 pi please answer and explain

    asked by thomas
  186. math

    If the area of a circle is twice the area of a triangle whose base is 4 pi and whose altitude is 4, the radius of the circle equals a. square root 32 b. 2 c. 4 d. 8 e. 32 please answer and explain

    asked by thomas
  187. Chemistry

    comparing and contrasting why is sodium hydrogen carbonate an effective antacid but sodium hydroxide is not?

    asked by Luke
  188. Chemistry

    comparing and contrasting why is sodium hydrogen carbonate an effective antacid but sodium hydroxide is not?

    asked by Andrea
  189. Statistics

    What percentage of cats sleep less than 10 hours? What percentage sleep more than 20 hours

    asked by Belinda
  190. CALC 2

    The position of particle P at time t is given by {x=t, y=3t-1} and the position of particle Q at time t is given by {x=4t-(t^2), y=t+1} a) Sketch both paths as well as possible. Be sure to label the paths with the particles (P and Q) traveling on each of

    asked by BAE
  191. Science

    What contribution does the African elephant make to the world.

    asked by Kayla
  192. math

    is 100 over 1000 10%?

    asked by Kris
  193. grammar

    In addition to having common personality traits with my mother, I also play the same two instruments my mother did when she was young. How to improve this sentence?

    asked by Anonymous
  194. Statistics

    A simple random sample of 27 adult mice has a length standard deviation of 0.66 mm. Using a 0.10 level of significance, does it appear that these mice come from a population with a length standard deviation of 0.87 mm?

    asked by Allison
  195. grammar

    My sister and I share a three year age gap as she is twenty one while I am eighteen. how to improve this sentence

    asked by Anonymous
  196. math

    The oil burner in a certain house is used to heat the house and to heat the hot water.During the seven cold months when the house is heated, an average of 200 gallons of oil a month is used.In the remaining five months, when the house is not heated, a

    asked by thomas