1. Statistics

    On standard IQ tests, the mean is 110 and the standard deviation is 15. The results are very close to fitting a normal curve. Suppose an IQ test is given to a very large group of people. Find the percent of people whose IQ score is less than 155.

    asked by Anonymous on February 14, 2012
  2. Statistics

    On standard IQ tests, the mean is 120 and the standard deviation is 18. The results are very close to fitting a normal curve. Suppose an IQ test is given to a very large group of people. Find the percent of people whose IQ score is less than 156.

    asked by Anonymous on February 14, 2012
  3. physics

    consider three charges: +Q, -Q, q where the center charge is equidistnat from the other two. assum that the two Qs cannot move. you also want to charge q to be at rest. if q=-8.0 nC, find Q+ You don't have to solve it but can you lead me in the right

    asked by jen on January 15, 2009
  4. Math

    Plz help me to solve this question The distance between two stations A & B is 230km.Two motorcyclistr start simultaneously from A&B in opposite directions and the distance between them after 3hours becomes 20km.if the speed of one motorcyclist is 10km,hr

    asked by Simran on January 9, 2013
  5. math118

    The price of a home is ​$102,000. The bank requires a​ 20% down payment and three points at the time of closing. The cost of the home is financed with a​ 30-year fixed-rate mortgage at 9.5%  Find the required down payment.

    asked by Jasmine on May 4, 2017
  6. Chemistry

    Given 175 liters of SO3 at 800 torr and 100 degrees C, find the volume at STP, give the mass of the sample and give the number of molecules in the sample. Can somebody please explain how I figure this out? I'm so lost. :{

    asked by Annabella on December 8, 2010
  7. physics

    A uniformly charged insulating rod of length 13.0 cm is bent into the shape of a semicircle as shown in the figure below. The rod has a total charge of -7.50 µC. Find the magnitude and direction of the electric field at O, the center of the semicircle.

    asked by anonymous on November 1, 2010
  8. Calculus

    Use implicit differentiation to find the slope of the tangent line to the curve y/(x+7y)=x^5+7 at the point (1,(-8/55). can anyone help me work out the problem step by step? y (x+7y)-1 = x5 +7 dy(x+7y)-1-y((x+7y)-2*(dx +7dy)=5x4 multiply it out, gather the

    asked by jimmy on May 19, 2007
  9. Math

    The floor areas of a living room on a house plan measures 3 1/2 inches by 4 5/8 inches. If the scale is 1/4 inch = 1 foot, find the length of the longest side of room in feet. How do I start this problem?

    asked by Mike on February 13, 2008
  10. Algebra

    A rectangular yard measuring 25ft by 35ft is bordered (and surrounded) by a fence. Inside, a walk that is 2ft wide goes all the way along the fence. Find the area of this walk. Be sure to include the correct unit in your answer.

    asked by Maria on December 8, 2015
  11. phyics

    A 11.7-kg uniform board is wedged into a corner and held by a spring at a 50.0° angle, as the drawing shows. The spring has a spring constant of 230 N/m and is parallel to the floor. Find the amount by which the spring is stretched from its unstrained

    asked by MATT on November 12, 2013
  12. Algebra

    The perimiter of a lot is 190 meters. The width is one-fourth of the length. Find the dimensions. Here's my system of equations: 2w + 2L = 190 1/4L = w What would I do from here? I prefer the elimination method. Would I multiply the second equation by 4?

    asked by Willow on February 23, 2009
  13. Physics

    I HONESTLY KNOW THAT THIS SITE IS NOT INTENDED TO JUST GIVE ANSWERS, BUT I HAVE NO IDEA HOW TO DO THIS PROBLEM WHATSOEVER, SO PLEASE MAKE NO COMMNENTS LIKE "post some work" OR ANYTHING LIKE THAT...IF I HAD WORK TO POST....I WOULDN'T REALLY NEED HELP... :)

    asked by Josh on September 17, 2006
  14. astronomy

    2. We ultimately want to find the amount of solar energy that hits the observer on the planet. Energy is usually measured in Joules, but there are other appropriate units of energy as well; kilowatt-hours for example, are used to measure the amount of

    asked by Luis on July 15, 2012
  15. MATH

    6. It takes Pam 45 minutes to drive to work and 60 minutes to drive home from work. Write the ratio of the time Pam spends driving home from work to the time she spends driving to work in three different ways. 7. Ben needs to buy orange juice. He can buy

    asked by goldensparklegirl222 on November 23, 2015
  16. Phenolphtalein vs Methyl Orange (check my reasonin

    Why can either phenolphthalein or methyl orange be used for an HCl-NaOH titration, but only phnolphthalein is suitable for an acetic acid-NaOH titration? Sol: for a while,I misunderstood the question and suggested that Phenol. has a wider array of pH. But

    asked by Kizner on June 12, 2006
  17. writing

    i can't find a article about the increasing suspicion of Muslims and Arabs that took place after 9/11 do you know where i can find information and example of something that happen to support my reasoning of the Muslims and Arbas reciving suspicion. It's

    asked by Bryan on August 27, 2006
  18. physics

    Find the number of moles in 2.00 L of gas at 35.0°C and under 7.41×107 N/m2 of pressure. Select one: a. 0.051 moles b. 51 ×105 moles c. 58 moles d. 5.8 moles

    asked by Sandra on May 17, 2016
  19. Foley

    Math angle 1 is complementary to angle 2. angle 2 is supplementary to angle 3 equal to 126 degrees. find measure angle one

    asked by Maddie on October 2, 2015
  20. Math

    Find the quotient function f/g for f(x)=sqr(x+1) and g(x)= sqr( x-1). My Answer: sqr(x+1)/sqr( x-1) sqr(x^2-1)/ (x-1) However, I also have to state the restrictions to the domain and range, which I do not know how to do. Could someone please help me?

    asked by Ed on September 23, 2010
  21. Math

    The sum of three times a first number and twice a scond number is 43. If the second number is subtracted from twice the first number, the result is -4. Find the number. Mainly I can't figure out is this is two problems in one or just one.

    asked by Callianna on September 23, 2013
  22. Physics

    If the vertical component of velocity for a projectile is 7.3 meters/second, find its hang time. A. 1.9 seconds B. 2.5 seconds C. 5.6 seconds D. 6.7 seconds E. 7.1 seconds

    asked by Lauren01 on February 22, 2012
  23. Chemistry

    For an experiment, we used 10 mL of HCl. We are then to find the moles of it without any other information given. Is this right? (10 mL HCl)* (1.19 g / mL) = 11.9 g HCl (11.9 g HCl) * (1mol/36.46064 g) = 0.326 mols HCl

    asked by Abby on June 2, 2017
  24. Physics

    If the vertical component of velocity for a projectile is 7.3 meters/second, find its hang time. A. 1.9 seconds B. 2.5 seconds C. 5.6 seconds D. 6.7 seconds E. 7.1 seconds

    asked by Lauren01 on February 22, 2012
  25. ALGEBRA 3

    if f{x}= negative x square - 7x - 22, what is f{negative 5}? a.negative 82 B.NEGATIVE 32 C. 12 D. NEGATIVE 12 Your problem: f(x) = -x^2 - 7x - 22 To find f(-5), substitute -5 for x. Watch your signs. I hope this helps.

    asked by Darius Graham on January 11, 2007
  26. Algebra 2

    There are two spinners. Each spinner is numbered 1-4. Each spinner is spun once. Find the probability of spinning each of the following:2 on the first spinner and a 4 on the second spinner, both numbers the same, 3 on exactly one spinner, one number less

    asked by Katy on February 1, 2012
  27. Math

    Find the quotient function f/g for f(x)=sqr(x+1) and g(x)= sqr( x-1). My Answer: sqr(x+1)/sqr( x-1) sqr(x^2-1)/ (x-1) However, I also have to state the restrictions to the domain and range, which I do not know how to do. Could someone please help me?

    asked by Ed on September 23, 2010
  28. Social Studies

    In which region of Asia would you find the Gobi Desert? a. East Asia b. Western Asia c. South Asia d. Southeast Asia

    asked by Kaai97 on October 16, 2015
  29. Algebra 2

    Factor the polynomial x*x*x-343 Find the real number solution of the equation x^3 = 343 --> x = 7 Put: [x^3 - 343]/[x-7] = A x^2 + Bx + C --> x^3 - 343 = [A x^2 + Bx + C]*[x-7]---> x^3 - 343 = A x^3 +(B-7A)x^2+(C-7B)x-7C A = 1 B = 7 C = 49

    asked by Dominique on December 15, 2006
  30. math check please

    1 four buttons have diameters of 5/8 , 3/4, 9/16, and 7/8 which buttons is smallest? answer 9/16 2. I spent 1/3 of my time doing math homework and 2/7 preparing for a history test . what fraction of study time remain? answer: 13/21 3. least common multiple

    asked by larry on February 8, 2007
  31. Business Statistics

    John & Jane are married. The probability that John watches a certain television show is .4. The probability that Jane watches the show is .5. The probability that John watches the show, given that Jane does, is .7. 1) find probability that both John & Jane

    asked by CC on June 21, 2011
  32. French

    I hope you very kind people out there will correct my French essay! Some places I have problems with past tense, so there I could use some help. Here's my essay: Chère mère et père, Comment Va va? Ici il va bien! Hier nous arrivér dans la colonie de

    asked by Juliane on May 21, 2007
  33. english

    edit this paper Alzheimer’s Something I became more aware of was Alzheimer’s Disease. This disease gradually destroys a person ’s memory and ability to learn and carry out daily activities . In the long term it ,effectively changes your personality

    asked by nancy on August 31, 2007
  34. English

    Read the sentence add missing exclamation marks, question marks or periods John lives at 5044 Colonial Dr John lives at 5044 Colonial Dr. Did Dr Brown talk to you before class Did Dr.Brown talk to you before class? Have you learned about Dr Martin Luther

    asked by Jerald on December 5, 2012
  35. 7th grade math Ms. Sue help please thanks

    11. The sales tax rate is 6.9%. a. Find the tax paid for a pair of boots with a list price of $128. b. What is the total cost of the pair of boots? (1 point) $8.83; $128.88 $8.83; $136.83 $0.88; $136.83 $0.88; $128.88 12. Doug is a salesperson in a retail

    asked by Delilah on December 5, 2012
  36. chemistry

    While trace impurities of iron and chromium in natural corundum form the gemstones ruby and sapphire, they are basically a binary compound of aluminum and oxygen, with 52.9% Al. Find the empirical formula and give the chemical name for corundum. the answer

    asked by minnie on February 20, 2012
  37. COLLEGE PHYSICS

    a 58kg skier is coasting down a 25degree slope with a kinetic friction force of 70N. initial speed is 3.6 m/s and distance traveled is 57m. find final velocity? i need some help on this i don't know where to start. i know W=F x cos theta x distance is the

    asked by natali on October 18, 2007
  38. Physics

    A turntable with a moment of inertia of 0.029 kg*m^2 rotates feely at 2.8 rad/s. A circular disk of mass 270 g and diameter 20 cm, and initially not rotating, slips down a spindle and lands on the turntable. a) Find the new angular speed. b) What is the

    asked by Unknown on May 10, 2011
  39. History

    1. Explain how the U.S. became involved in the politics of Southeast Asia. 2. Explain how this involvement impacted the U.S. political climate of the 1950s. I answered the first question I just don't understand the second part. I researched on the internet

    asked by Bretagne on June 29, 2008
  40. checkpoint

    The minimum daily values (MDVs) for certain foods are given. They are based on a 2,000 calorie per day diet. Find decimal and fractional notation for the percent notation in each sentence. 1/2 cup of Campbells’ New England clam chowderprovides 6% of the

    asked by Anonymous on May 27, 2009
  41. Calculus

    If an open box has a square base and a volume of 106 in.3 and is constructed from a tin sheet, find the dimensions of the box, assuming a minimum amount of material is used in its construction. (Round your answers to two decimal places.) height in length

    asked by Josh on April 4, 2011
  42. Physics

    Four penguins are being pulled along very slippery (frictionless) ice by a curator. The masses of the three penguins are given below and so are two of the tensions. Find the penguin mass that is not given. 12kg---Unknown--111N--15kg---20kg--222N After

    asked by Jenn on October 18, 2007
  43. Social Studies

    When do you expect to find more surface run-off than soil infiltration? When water levels in rivers and streams are low When soil permeability is equal to the rate of precipitation When flooding occurs during a rainstorm When there are extensive summer

    asked by Sue on October 22, 2014
  44. Math

    Hello I was wondering if you can help me with some math. I cant figure this problem and when my friend helped me they came up with a different answer. The question is find the surface area of the cylinder. The radius is 8 and the height is 8. Use 3.14 for

    asked by Sebby-Chan on April 11, 2014
  45. Calculus

    Estimate the area of the plane region bounded by the graph of f(x) = e^x, the x-axis, and the vertical lines x = 0 and x = 8 using the trapezoidal method with trapezoids of equal width. Round your answer to 4 decimal places. I got the answer 6892.7480 but

    asked by Andrea on February 26, 2016
  46. physics

    A car (m = 770.0 kg) accelerates uniformly from rest up an inclined road which rises uniformly, to a height, h = 45.0 m. Find the average power the engine must deliver to reach a speed of 20.9 m/s at the top of the hill in 19.5 s(NEGLECT frictional losses:

    asked by Anonymous on November 14, 2011
  47. art

    I have homework in art where, every week, I must look up an art definition, describe it, and draw a picture with it. I was wondering what the following words mean and/or where I could find pictures: Sfumato, Composite, Anthropomorphism, Tactile, Garish,

    asked by Gabrielle on November 21, 2009
  48. Calculus

    The demand equation for a product is p=88,650/(396+3x) where p is the price (in dollars) and x is the number of units (in thousands). Find the average price p on the interval 40

    asked by Alyssa on November 13, 2016
  49. stats

    The rate of chlamydia infection was reported as 2.78% in a recent year. Under certain conditions, a preliminary screening test for the chlamydia bacterium is correct 96% of the time. One person is randomly selected from the population. find the true

    asked by mark on March 6, 2013
  50. Physics. PLEASE HELP!!

    A small, spherical bead of mass 1.9 g is released from rest at t = 0 in a bottle of liquid shampoo. The differential equation of motion is dv/dt = g−b/m*v . The terminal speed is observed to be 1.6 cm/s. The acceleration of gravity is 9.8 m/s2 . Find the

    asked by Ashley on February 29, 2012
  51. Trig

    A sprinkler on a golf green is set to spray water over a distance of 20 meters and to rotate through an angle of 160°. Find the area of the region that can be irrigated with the sprinkler. (Round your answer to two decimal places.) I really have no idea

    asked by Danya on September 24, 2012
  52. physics

    A car (m = 640.0 kg) accelerates uniformly from rest up an inclined road which rises uniformly, to a height, h = 43.0 m. Find the average power the engine must deliver to reach a speed of 19.9 m/s at the top of the hill in 23.9 s(NEGLECT frictional losses:

    asked by beth on March 2, 2008
  53. AED 200

    Identify the roles district, state, and federal government agencies have in your local schools. Which agency do you feel has the most significant influence in making policy and curriculum decisions at the local level? Why? Please help. I can not find any

    asked by Ashley on April 13, 2009
  54. ALGEBRA

    Find the amount of compound interest earned in an account that opens with $27,000, earns 4.6% interest compounded daily, and is held for 25 years. Assume 360 days in a year. (Round your answer to the nearest cent.) I came up with $85,264.94 is this correct

    asked by MONICA on November 23, 2011
  55. statistics

    a researcher is interested in studying people's mean age in a certain region. If the population standard deviation is known to be 8 years and 1.5 year of error margin is allowed, find the minimum simple size the researcher needs to use, knowing that he is

    asked by treal on August 23, 2011
  56. fizik

    1. A sports car travelling east at 48.0 m/s passes a trooper hiding at the roadside. The driver uniformly reduces his speed to 22 m/s in 4.10 s a) Find the magnitude and direction of the car’s acceleration as it slows down b) Calculate the distance

    asked by alya on February 20, 2011
  57. Calculus

    For the decomposition of Carbon 14, find the age of a prehistoric cave painting discovered in the Lascaux Caves in southern France if the amount of Carbon 14 has decayed to 14.29%...again using calculus formulas. Not sure how to use this equation (content

    asked by Derek on July 15, 2008
  58. Statistics

    The table below shows the smoking habits of a group of asthma sufferers NS OS RS HS T M 358 32 90 48 528 W 307 35 77 44 463 T 665 67 167 92 991 If one of the 991 people is randomly selected, find the probability that the person is a man or a heavy smpker

    asked by Eduardo Ortega on July 18, 2009
  59. algebra

    Annual profit in thousands of dollars is given by the function, P(x) = 100*sqrt(x – 5) + 3000, where x is the number of items sold, x ≥ 5. 3. Find the profit for 6 different values of x (show your work). PLEASE use x = 5, 69, 105, 230, 366, and 489 and

    asked by twin on August 8, 2012
  60. maths!

    the formula h=15t-5t^2 gives the height 'h' metres of a ball, 't' seconds after it is thrown up into the air. (i) find the times when the height is 10m (ii) after how long does the bal hit the ground? ive figured out that the answer to (i) is t= 1 or 2 by

    asked by jessica on August 6, 2008
  61. HIS 135

    I am doing research on my final project in HIS 135, and I need to find an important social, economic, or political event that impacted the American people the most for the following years: 1950s, 1960s, 1970s, 1980s, 1990s. I don't mind doing the research

    asked by Punkie on June 24, 2009
  62. Physics

    A car (m = 610.0 kg) accelerates uniformly from rest up an inclined road which rises uniformly, to a height, h = 49.0 m. Find the average power the engine must deliver to reach a speed of 24.7 m/s at the top of the hill in 20.5 s(NEGLECT frictional losses:

    asked by Kevin on April 14, 2016
  63. Chemistry

    You are given 75mL of 1mol/L NaOH and 75 mL of 1mol/L HNO3 at atmospheric pressure. After mixing the two compounds, he measured a rise in temperature from 25°C to 32°C. Find the change in energy of the system in kJ/mol. (Known: Density of aqueous

    asked by John on May 26, 2015
  64. Samantha

    Hello, i have to write a ccot essay. can someone please help find details for each of my subtopics? the topic: analyze continuities and changes that resulted from the spread of islam into west africa betweeen circa 800 ce to 1750 ce. changes: trade and

    asked by World History on December 12, 2013
  65. math

    For a fair coin tossed three times, the eight possible simple events are HHH, HHT, HTH, THH, HTT, THT, TTH, TTT. Let X = number of tails. Find the probability distribution for X by filling in the table showing each possible value of X along with the

    asked by Anonymous on October 9, 2010
  66. physic

    A swing ride at a carnival consists of chairs that are swung in a circle by 11.0-m cables attached to a vertical rotating pole, as the drawing shows. Suppose the total mass of a chair and its occupant is 164 kg, the angle θ = 58°. Find the speed of the

    asked by john bear on September 28, 2015
  67. math exam tommrow review

    the ABC cell phone company offers a plan that includes a flat rate fee of $29 per month plus a $0.12 charge per minute.write an equation to find C, the total monthly cost for m mintues. then solve the equation for m=50. please show work.

    asked by ellis on December 18, 2012
  68. physics

    An accelerating voltage of 2.46 * 10^3 V is applied to an electron gun, producing a beam of electrons originally traveling horizontally north in vacuum toward the center of a viewing screen 34.0 cm away. What is the magnitude of the deflection on the

    asked by Rachel on April 8, 2011
  69. statistics

    A researcher is interested in studying people’s mean age in a certain region. If the population standard deviation is known to be 8 years and 1.5 year of error margin is allowed, find the minimum simple size the researcher needs to use, knowing that he

    asked by josh on August 24, 2011
  70. Physics

    A car (m = 670.0 kg) accelerates uniformly from rest up an inclined road which rises uniformly, to a height, h = 35.0 m. Find the average power the engine must deliver to reach a speed of 23.9 m/s at the top of the hill in 22.7 s(NEGLECT frictional losses:

    asked by Jim on January 6, 2014
  71. Statistics

    Each year, approximately 160 colleges compete in the National Concrete Canoe Competition. Each team must design a seaworthy canoe froma a substance not known for its capacity to float. The canoes must weigh between 100 and 350 pounds. Find the midrange.

    asked by Cassandra on August 12, 2011
  72. math

    In a large vase, there are 8 roses, 5 daisies, 12 lilies and 9 orchids. If 3 flowers are selected at random, find the probability that at least 1 of the flowers is a lily. Assuming that the events are dependent. Would you consider this event likely to

    asked by ifi on December 28, 2012
  73. math

    LPG (liquefied petroleum gas) is stored in highly insulated spherical vessels in most oil refineries. if the inside of one of these tanks is 11.4 ft, find the volume. report your answer to the nearest one-tenth of gal. use pie equal 3.14, and 1 cubic ft

    asked by Anonymous on November 17, 2012
  74. Maths

    a rectangular metal sheet of length 30cm and breadth 25cm is to be made into an open box of base area 300cm by cutting out equal squares from each of the four corners and then bending up the edges find the length and the side cut from each corner

    asked by Mayur on December 7, 2016
  75. Physics

    I have 2 questions...one can someone please read my question posted around noon today called Lab for physics? Thanks..and secondly, I have to derive some equation. I am supposed to show a=gtantheta and find this from m (mass) L (length). The question also

    asked by RSVP on September 30, 2007
  76. Social Studies

    I am doing a descriptive writting report on a famous place in Europe and I chose the Louvre Museum. I can't seem to find really any information can you help me? Thanks! Try a travel guide website like Frommer's or lonelyplanet

    asked by Valerie on January 18, 2007
  77. physics

    A 109 kg fullback runs at the line of scrimmage. (a) Find the constant force that must be exerted on him to bring him to rest in a distance of 1.1 m in a time interval of 0.22 s. (b) How fast was he running initially? someone answered this earlier but i do

    asked by Anonymous on February 3, 2011
  78. Physics

    A turntable with a moment of inertia of 0.017 kg*m^2 rotates feely at 3.3 rad/s. A circular disk of mass 240 g and diameter 26 cm, and initially not rotating, slips down a spindle and lands on the turntable. a) Find the new angular speed. b) what is the

    asked by John on December 4, 2011
  79. grammar

    I have to find the simple subject and simple predicate in this sentence. Several North American cultures built large mounds of earth thousands of years ago and used them as burial places and foundations for buildings.(note that some subjects and predicates

    asked by ebony on September 25, 2008
  80. Mechanics Edit

    In order to find the equilibrium equations in polar coordinates. Page 2 of: (soest.hawaii.edu/martel/Courses/GG703/GG711c_Lec_10.pdf) Do you have to use the Taylor expansion to get from 10.4 to 10.5? Also, how is this equation altered if there are shear

    asked by Brian on September 30, 2007
  81. Reading

    1. Scan the article “The Games Kids Play” to find the name of the Iowa State University professor who believes violent games make people more aggressive. Bryce Conley Craig Anderson Eric Harris Howard Winkler

    asked by Jman on January 17, 2013
  82. statistics

    Each year, approximately 160 colleges compete in the National Concrete Canoe Competition. Each team must design a seaworthy canoe from a substance not know for it's capacity to float. The canoes must weigh between 100 and 350 pounds. Find the midrange

    asked by Tamika on September 16, 2012
  83. Art

    I need to let you check a few things later. I hope you'll be there, Writeacher. 1) I need your help for a project work on Emily Dickinson and the theme of anorexia. Could you suggest one of her poems? 2) I also need your help to find a short description

    asked by Frank on May 3, 2012
  84. History

    For our homework we have to find three people and ask them how they would sum up the Second Bank War in a couple of sentences. Then in class tommorrow we have to compare their answers with everybody else in the class. I have asked my mom, and my grandma so

    asked by Ryan on November 9, 2009
  85. Math

    Show that the function F( x)=∫(from x to 3x)1/t dt is constant on the interval (0, +∞). Okay so I'm not sure if I should use the FTOC Part 1 or something else but this question is just really confusing. I asked my brother and he said I should just

    asked by MGuy135 on May 19, 2018
  86. Chemistry

    20cm3 of 0.500moldm-3 H2SO4 was consumed to neutralize 50cm3 of 0.400moldm-3 NaOH. The temperature of the system is increased by 36 degree C. The heat capacity of the calorie meter was 39 JK-1, and the heat capacityof the solution is 4.2JK-1. Find the

    asked by Emma on February 21, 2013
  87. Algebra 2

    A water sample in a laboratory initially contains 6000 bacteria. The organisms reproduce at a rate of 10% per hour. Find the function that corresponds to this situation. Then predict how long it will take for the population of bacteria to double in number.

    asked by Sam Joseph on March 10, 2016
  88. Chemistry

    20cm3 of 0.500moldm-3 H2SO4 was consumed to neutralize 50cm3 of 0.400moldm-3 NaOH. The temperature of the system is increased by 36 degree C. The heat capacity of the calorie meter was 39 JK-1, and the heat capacityof the solution is 4.2JK-1. Find the

    asked by Emma on February 21, 2013
  89. Statistics

    Use the given data to find the minimum sample size required to estimate a population proportion or percentage. Margin of error: five percentage points; confidence level 90% from a prior study, ^p is estimated by the decimal equivalent 56% n= (Round up to

    asked by Rob on April 30, 2013
  90. Business-marketing

    Marketers have observed that consumers are involved in more camping, hiking, boating, fishing, and other outdoor activities because of their __________. A. love of nature B. awareness of nature C. need of exercise D. lack of money E. none of the above I

    asked by jen on February 9, 2008
  91. math

    U.S. cement export date for the last 10 years in thousand tons: 746, 625, 633, 759, 803, 791, 743, 694, 738, 834 Find the mean number of tons exported for the period. I don't understand how to set this up.

    asked by tmouery on March 27, 2013
  92. physics

    An accelerating voltage of 2.46 * 10^3 V is applied to an electron gun, producing a beam of electrons originally traveling horizontally north in vacuum toward the center of a viewing screen 34.0 cm away. What is the magnitude of the deflection on the

    asked by Rachel on April 8, 2011
  93. physics

    A car (m = 690.0 kg) accelerates uniformly from rest up an inclined road which rises uniformly, to a height, h = 49.0 m. Find the average power the engine must deliver to reach a speed of 24.9 m/s at the top of the hill in 15.7 s(NEGLECT frictional losses:

    asked by rory on March 1, 2008
  94. Honors English 10

    In Harper Lee's novel, To Kill a Mockingbird, there is a reference Scout makes to FDR's statements along the lines of "nothing to fear but fear itself". Does anybody know what page this is on or at least the chapter? I'm looking all over but I cannot find

    asked by Emily on February 4, 2009
  95. Algebra 2 honors

    A water sample in a laboratory initially contains 6000 bacteria. The organisms reproduced at a rate of 10% per hour. Find the function that corresponds to this situation. Then predict how long it will take for the population of bacteria to double in

    asked by Treal Jacob on March 10, 2016
  96. physics

    The initial kinetic energy imparted to a 0.72 kg bullet is 1777 J. The acceleration of gravity is 9.81m/s2.Neglecting air resistance, find the range of this projectile when it is fired at an angle such that the range equals the maximum height attained.

    asked by ally on February 25, 2011
  97. Applied Calculus

    If an open box has a square base and a volume of 112 in.3 and is constructed from a tin sheet, find the dimensions of the box, assuming a minimum amount of material is used in its construction. (Round your answers to two decimal places.) Height: Length:

    asked by Jacob on March 12, 2013
  98. Algrebra

    I need to find the approximate surface area of a cone with the R=5 and L=6. I thought I figured it out by 3.14(5)(6) which will give me 94.2 I then would take 94.2 +3.14(5)squared and I came up with 172.7, but my answer should be either 20m squared, 98m

    asked by Samantha on April 9, 2012
  99. Math

    Find the amount of money in the account at the end. $1000.00, 4 years, 7% compounded semi-annually A=P(1+r/n)^nt r=0.07, t=4, P=$1000.00, n=2 A=P(1+r/n)^nt A=$1000.00(1+0.07/2)^2-4 A=$1000(1.035)^8 A=$1000(1.316809037) A=$1,316.809037 My answer is:

    asked by Sara on April 9, 2008
  100. Maths/Physics

    Hey guys pls help- Susan has a trundle wheel. The radius of the wheel is 0.2 metres. She pushes the wheel across the playground. The wheel makes 30 complete rounds. Find the distance the wheel travelled.

    asked by Bella on August 24, 2017

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