1. science

    Multiple Choice 1. Which of Earth's spheres contains mountains, valleys, and other landscapes? (1 point) atmosphere biosphere geosphere hydrosphere 2. Which of the following are examples of destructive forces? (1 point) ice wind both ice and wind neither

    asked by Chairflip on March 22, 2018
  2. Math

    Just want to double check If the question asks to find ratio of speed of car to speed of train given speed of car is 40 km/h and of train is 120km/h And I put as Train:car. (Instead of car:train) 120:40 12:4 3:1 Is this incorrect if I put in the reverse

    asked by NJay on October 16, 2017
  3. human resources

    1. An example of internally aligning HR practices is: a. implementing an employee dress code that increases customer satisfaction. b. creating a recruitment plan that targets the predominate groups in the organizations labor market. c. implementing a

    asked by karen on July 30, 2012
  4. physics

    A Carnot engine is operated between two heat reservoirs at temperatures 520 K and 300 K. (a) If the engine receives 6.45 kJ of heat energy from the reservoir at 520 K in each cycle, how many joules per cycle does it reject to the reservoir at 300 K? (b)

    asked by Jen on December 3, 2007
  5. physics

    A Carnot engine is operated between two heat reservoirs at temperatures 520 K and 300 K. (a) If the engine receives 6.45 kJ of heat energy from the reservoir at 520 K in each cycle, how many joules per cycle does it reject to the reservoir at 300 K? (b)

    asked by Jen on December 2, 2007
  6. Physical Science

    An experiment was done. Pulling blocks of mass that were certain amounts of newtons. There were 2 tests done. However, they varied by a couple decimals after the second test. The results from the two tests differ slightly. Which would most likely cause the

    asked by Marcus Peerbocus on April 13, 2017
  7. Physical Science

    An experiment was done. Pulling blocks of mass that were certain amounts of newtons. There were 2 tests done. However, they varied by a couple decimals after the second test. The results from the two tests differ slightly. Which would most likely cause the

    asked by Marcus Peerbocus on April 13, 2017
  8. Math

    Am not good with story prombles could someone please help. Can you show me how to come up with answer so that I understand it. The bith rate in the United states in 1996 was 14.7 births per thousand population. In 2006, the birth rate was 14.14 births per

    asked by Tammie on February 28, 2011
  9. Biology

    I'm having trouble answering this: The average size of a large fish that humans use for food has been decreasing over time, Exp-lain how, exactly, this happens - be sure to discuss genes, proteins, traits, and selection pressure. This is all I can answer

    asked by Emily on April 22, 2011
  10. physics

    Your physical therapist throws a baseball to you at a certain speed and you catch it. To increase the difficulty, the therapist is going to throw you a medicine ball whose mass is ten times the mass of the baseball. You are given the following choices.

    asked by lib on October 15, 2012
  11. physics

    Your physical therapist throws a baseball to you at a certain speed and you catch it. To increase the difficulty, the therapist is going to throw you a medicine ball whose mass is ten times the mass of the baseball. You are given the following choices.

    asked by lib on October 15, 2012
  12. physics

    Your physical therapist throws a baseball to you at a certain speed and you catch it. To increase the difficulty, the therapist is going to throw you a medicine ball whose mass is ten times the mass of the baseball. You are given the following choices.

    asked by lib on October 15, 2012
  13. english

    What grammatical structure is the italicized portion of the sentence? Although her personality had not changed at all, Megan looked quite different is it: adverb clause infinitive phrase past participial phrase elliptical clause adjective clause

    asked by john on April 5, 2012
  14. Math Part 2

    a.Execute the research necessary to understand the basic structure of a 401K plan. Write a brief summary of your findings. b.How much did Advanced Ideas, Inc. put into Sally’s 401K in her first two years? c.How much will Sally contribute to her own 401K

    asked by dEE on June 25, 2007
  15. Calculus

    A right circular cylinder is changing shape. The radius is decreasing at the rate of 2 inches/second while its height is increasing at the rate of 5 inches/second. When the radius is 4 inches and the height is 6 inches, how fast is the a) volume changing

    asked by Sara on November 2, 2014
  16. Algebra (Please check)

    PLEASE CHECK MY ANSWERS (: I just want to make sure I am doing this correctly __________________________________ Graph the system of constraints and find the value of x and y that maximize the objective function. Constraints: x ≥ 0 y ≥ 0 y ≤ (1)/(5)

    asked by Greg on September 17, 2012
  17. Science

    I need some ideas for a science project on animal cells. For each structure I need to find an everyday object which has a similar job or function as that cell part. For example, the nucleus is like a brain. My list includes Lysosome, Golgi Body, Nucleolus,

    asked by Mary on October 2, 2007
  18. physics

    Three very small spheres are located along a straight line in space far away from everything else. The first one (with a mass of 2.59 kg) is at a point between the other two, 10.50 cm to the right of the second one (with a mass of 5.03 kg), and 20.40 cm to

    asked by rory on December 15, 2007
  19. Physics

    A 100W incandescent lamp of filament area 45 mm^2, emits all its energy by radiation into the surrounding space of room at 22C. If the filament emissivity is 0.32, find the temperature of the filament?

    asked by Tsunayoshi on February 2, 2014
  20. Physics

    A space station is designed so that people can walk on the inside of the outer wall and feel their normal weight. The station is to be 750 m in diameter. What is the period of the station's rotation?

    asked by Juan on February 26, 2018
  21. Astronomy 1010

    The International Space Station orbits approximately 350 km above the Earth's surface. (The Earth's radius is 6,378 km.) Are the astronauts beyond the pull of Earth's gravity? Explain your reasoning.

    asked by Frank on January 18, 2012
  22. Math

    I don't know how to solve this math problem? A call center is 120 yd. long and 40 yd. wide. Each employee requires 30 sq. ft. if the center needs to have 40% of open space, how many employees can be seated in the center?

    asked by Paula on October 9, 2011
  23. History

    In which geography region of Texas is NASA Johnson Space Center located A.Coastal plains B.Great Plains C.Mountain and Basins D.North Central Plains I think it is A or B

    asked by I need help on September 5, 2018
  24. physics

    You are on Mars and would like to send a probe into space so that it does not fall back to the surface. What minimum launch speed do you need? (The mass of Mars is 6.42x10^23 kg and the radius of Mars is 3.40x10^6 m) km/s Please someone also help me on

    asked by Akbar on June 2, 2012
  25. Astronomy 1010

    The International Space Station orbits approximately 350 km above the Earth's surface. (The Earth's radius is 6,378 km.) Are the astronauts beyond the pull of Earth's gravity? Explain your reasoning.

    asked by Frank on January 18, 2012
  26. Algebra

    Order the group of quadratic functions from widest to narrowest graph. y = 3x^2;y=5x^2;y=7x^2 Order the group of quadratic functions from widest to narrower graph. y = -1/3x^2;y=2/3x^2; y = 3/2 x^2

    asked by Eileen D. on May 23, 2018
  27. fin 3030

    2. A new common stock issue paid a $1.50 dividend last year. The par value of the stock is $25, and earnings per share have grown at a rate of 3% per year. This growth rate is expected to continue into the foreseeable future. The company maintains a

    asked by Anonymous on October 12, 2012
  28. chemistry

    Read the two statements below about the compounds H2Y, Li2Y, HZ and KZ and then answer the questions that follow: A non-metal element which lies in the third row of the Periodic Table forms a gaseous compound H2Y with hydrogen and the compound Li2Y with

    asked by Anonymous on February 6, 2011
  29. computers

    Derive what you believe is the underlying structure of either iTunes or the Walden University Library database. Sketch the result as an ER diagram. Alternate: Identify at least three difficulties that a DBMS overcomes for the business enterprise. Name two

    asked by cathy on December 23, 2009
  30. history

    Select one civilization you learned about during the semester. Write an essay in which you explain how the structure and nature of government in that civilization a) developed, b) responded to needs within society, and c) succeeded or failed. Be sure to

    asked by nojit on January 22, 2018
  31. Education 301

    I need to complete an assignment for edu 301 and I am completely lost. Can anyone help me get started? Create a flowchart, in which you create an organizational structure for the education system for the federal, state, district, and school levels. I have

    asked by Amanda on October 29, 2011
  32. Physics

    #1.) A solar photovoltaic panel has an area of 3 m^2. The panel's maximum power output is 595 W @ 1100 W/m^2. a) What is its efficiency? b) If the panel receives 1300 W/m^2 of irradiance, what is its new power output? #2.) A solar voltaic module has a

    asked by Joe on December 5, 2010
  33. Physics

    #1.) A solar photovoltaic panel has an area of 3 m^2. The panel's maximum power output is 595 W @ 1100 W/m^2. a) What is its efficiency? b) If the panel receives 1300 W/m^2 of irradiance, what is its new power output? #2.) A solar voltaic module has a

    asked by Jim on December 5, 2010
  34. probability

    Let È be the bias of a coin, i.e., the probability of Heads at each toss. We assume that È is uniformly distributed on [0,1]. Let K be the number of Heads in 9 independent tosses. By performing some fancy and very precise measurements on the structure of

    asked by alec on April 14, 2015
  35. Engineering Physics Opt B

    9. The flywheel shown in Figure 14.8 may be considered to be a steel cylinder (density 7800 kg m−3) of outer radius 40 cm and depth 12 cm, but with the central section (of outer radius 18 cm) missing. a. Use this simplification to estimate its moment of

    asked by Shrish on February 10, 2017
  36. geography

    Give one mineral for each physical property. Physical properties: (1)It must occur naturally. (2)It must be inorganic. (3)It must be a solid. (4)It must possess an orderly internal structure: that is, its atoms must be arranged in a definite pattern. (5)It

    asked by Kan on October 24, 2007
  37. sociology

    Imagine a society in which there are no social classes- no differences in people’s wealth, income, and life chances. What would such a society be like? Would it be stable or would its social structure change over time? How could you apply Max Weber’s

    asked by Anonymous on July 30, 2010
  38. physics

    A car's internal combustion engine can be modeled as a heat engine operating between a combustion temperature of 1500∘C and an air temperature of 20∘C with 30% of the Carnot efficiency. The heat of combustion of gasoline is 47 kJ/g. Q) What mass of

    asked by Help on December 12, 2016
  39. physics

    a man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 2.50 m and the distance from the fulcrum to the load is 0.500 m. A graph of resistance force vs. effort force is shown. What is the mechanical advantage of

    asked by archie on March 9, 2018
  40. math

    Aaron own a shipping company. He plans to move into his new office which is near to the city centre. He needs some filing cabinets to organize his files. Cabinet x which costs RM100 per unit, requires 0.6 square meters of the floor space and can hold 0.8

    asked by mt on June 8, 2015
  41. math

    Aaron own a shipping company. He plans to move into his new office which is near to the city centre. He needs some filing cabinets to organize his files. Cabinet x which costs RM100 per unit, requires 0.6 square meters of the floor space and can hold 0.8

    asked by mt on June 9, 2015
  42. Can comeone check my answer for me. Many Thanks!

    A set of data is normally distributed with a mean of 1000 and standard deviation of 100. · What would be the standard score for a score of 1100? · What percentage of scores is between 1000 and 1100? · What would be the percentile rank for a score of

    asked by Ashley S on October 23, 2012
  43. Calculus

    Assume the dimensions of a rectangle are continuously changing in a way so that the area, A, of the rectangle remains constant. If the base of the rectangle is increasing at a rate of 3 inches per second, at what rate is the height of the rectangle

    asked by Marto on March 22, 2013
  44. Chemistry

    Can someones please check my work? 1. Why does a liquid take the shape of whatever container it is in but does not expand to fill the container completely? A: It takes the shape of its contaienr because its particles can slip past each other. but it has

    asked by John on May 7, 2009
  45. chemistry

    N2(g) + 3 F2(g) → 2 NF3(g) ΔH° = –264 kJ/mol ΔS° = –278 J/(mol∙K) a. calculate the maximum amount of non-PΔV work that can be accomplished through this reaction at a temperature of 500°C. b. Determine the temperature at which the equilibrium

    asked by chamy on April 22, 2012
  46. Chem

    How do you figure out the Noble Gas Configuration? Also, why do you not put in the "p" level and when do you( if you even do) put it in? You need to be more specific about your question. Elements that lose electrons (Na, Ca, Al, etc) gain the noble gas

    asked by Ty on March 20, 2007
  47. ENGLISH

    Please make the correction so that my paper is error free. Dear Ms. Powell Thank you for your order. The enclosed invoice indicted that the shipment was sent under separate covers. This shipment includes all volumes except the final volume that is being

    asked by ANGELA on February 8, 2011
  48. science

    4. Which of the following is the primary control of how much water vapor the air can hold? a. Number of particulates present b. Temperature of the air c. Specific heat of water d. Amount of dry gases present answer: b 6. Which of the following would cause

    asked by ~ on September 19, 2018
  49. weather

    1. Which of the following is the primary control of how much water vapor the air can hold? a. Number of particulates present b. Temperature of the air c. Specific heat of water d. Amount of dry gases present answer: b 2. Which of the following would cause

    asked by ~ on September 19, 2018
  50. biology -urgent...highly confused

    How does pH affect the activity of catalase? Consider both high and low pH, and explain your observations by discussing the effect of pH on protein structure. I cannot find anywhere in my notes, or text book, or even on the internet how pH affects

    asked by Leo on February 28, 2008
  51. social studies

    what exactly does increasing/decreasing population growth say about the country? also, if birth and death rates remain the same, what is the population pyramid going to look like in a couple of decades? It depends on who is dying. If infants are dying, it

    asked by Fallon on November 30, 2006
  52. human bahavior in organization.. please help me

    is anyone can help me to get the correct answers for the questions below.please help me thank you 1.How effectively your staff communicates and relates to each other can tell you how much they care for their work and the people around them? my answrs: To

    asked by jessie on September 30, 2011
  53. Fluid Mechanic

    3) Air at standard conditions enters the compressor shown in Fig. Q3 at a rate of 0.3m3/s. It leaves the tank through a 3 cm diameter pipe with a density of 1.8 kg/m3 and the uniform speed of 210 m/s. (a) Determine the rate (kg/s) at which the mass of air

    asked by Adam on November 15, 2016
  54. Ecosystems

    put following terms in order from smallest to largest biome biosphere community ecosystem single species population order 1 single species 2 community 3 population 4 ecosystem 5 biosphere 6 biome

    asked by Sherrie on July 6, 2010
  55. PHYSICS

    Two parallel slits are illuminated by light composed of two wavelengths. One wavelength is λA = 553nm. The other wavelength is λB and is unknown. On a viewing screen, the light with wavelength λA = 553nm produces its third-order bright fringe at the

    asked by Ashley on May 7, 2013
  56. art

    1)Which of the following must be present in a composition so we can see a sense of rhythm in that composition? a. movement b. harmony c. unity d. all of the above e. none of the above Answer d 2)Before deciding upon what type of balance is used in a work

    asked by Anonymous on September 24, 2018
  57. CHEMISTRY HELP !!!! CHECK !!!

    Al3+ is reduced to Al(s) at an electrode. If a current of 2.75 ampere is passed for 36 hours, what mass of aluminum is deposited at the electrode? Assume 100% current efficiency. a. 9.2 x 10–3 g b. 3.3 x 101 g c. 9.9 x 101 g d. 1.0 x 102 g e. 3.0 x 102 g

    asked by YULCHANG on May 9, 2014
  58. alg. Connections

    Lucy wants to be exempt from her semester exam. In order for that to happen, she has to average an 85 over 3 test grades. Her first 2 test grades were 81 and 86. What does Lucy need to make on her third test in order to have an exact average of 85 and be

    asked by Quin'Jara on August 25, 2016
  59. English

    Hello. Thank you for answering my previous question. I would be very grateful for some more help. 1)In one of the sources I came across the phrase "the nobility was coopted from the military". Does "co-opted" here mean "drawn, incorporated from"? (the

    asked by Nalmi on December 8, 2013
  60. English

    Hello. Please tell me if the sentence structures are natural: 1)The crisis affected the world, specifically African countries. 2)..., and specifically African countries. 3)..., African countries specifically. 4)..., in particular African countries. 5)...,

    asked by Ilma on May 9, 2011
  61. Statistics

    This is a standard deviation contest. You have a six sided die with the numbers 1 to 6 written on the faces. a)In order to have the smallest possible standard deviation what number(s) would have to show up if you rolled the die five times? b)In order to

    asked by Sue on March 2, 2013
  62. Science

    A coach wants to find out the speed of the runners on a track team. Tell what simple equiptment the coach needs in order to do this and explain how it should be done. You need to know the time and distance in order to calculate speed. Think of some typical

    asked by Jerald on January 16, 2013
  63. history

    What was the significance of the Gothic Line? a It was a line of convoy trucks that supplied the Allies as they attempted to take Italy from Axis control. b It was a set of fortifications in Italy that gave the Allies the upper hand when they broke through

    asked by Monica on July 31, 2018
  64. physics

    In 1865, Jules Verne suggested sending people to the Moon by launching a space capsule with a 207.9 m long cannon. The final speed of the capsule must reach 11.31 km/s. What acceleration would the passengers experience?

    asked by Vishnu on October 7, 2008
  65. physics

    In 1865, Jules Verne suggested sending people to the Moon by launching a space capsule with a 207.9 m long cannon. The final speed of the capsule must reach 11.31 km/s. What acceleration would the passengers experience?

    asked by Vishnu on October 8, 2008
  66. Physics

    I'm having trouble with this question. Some __ objects emit no visible light but are known through __ and radio images; satellite observations __ Earth's atmosphere help scientist study space at wavelengths that do not reach Earth's surface. If you can

    asked by Demi on January 1, 2010
  67. physics

    It has been suggested that rotating cylinders about 12.5 mi long and 4.88 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall

    asked by king on January 6, 2016
  68. 7th Grade Spelling

    Instructions: In the space provided, write the vocabulary word from list 3 that is most nearly an antonym (a word opposite in meaning) of each of the following expressions. 1. Promising--------- Is it ominous, pacific, plod, smolder, submerge, swagger, or

    asked by Losa on August 30, 2012
  69. reaearch paper

    How can I narrow down all my research to 3 pages? Smaller font, no run on sentences, no useless info if you have to dubble space don't (hearts) Edit out all of the parts that don't directly pertain to your thesis statement.

    asked by Brooke on May 14, 2007
  70. Physics

    In 1865, Jules Verne suggested sending people to the Moon by launching a space capsule with a 228.8 m long cannon. The final speed of the capsule must reach 11.39 km/s. What acceleration would the passengers experience?

    asked by Bala on October 4, 2010
  71. Physics

    In 1865, Jules Verne suggested sending people to the Moon by launching a space capsule with a 228.8 m long cannon. The final speed of the capsule must reach 11.39 km/s. What acceleration would the passengers experience?

    asked by Bala on October 4, 2010
  72. French

    1. Nous sommes allés faire du ski 2. Nous avons quitté Strasbourg assez tard 3. Nous avons dû passer la nuit à Lyon 4. Nous sommes arrivés à la montagne seulement samedi 5. Il y avait beaucoup de voitures sur la route. 6. Il neigeait 7. La route

    asked by Gracie on April 13, 2011
  73. science

    I've got a project due on Monday and i can't find any thing on what I'm supposed to be doing it on. I'm doing it on the chemical mixture of jelly and whenever i type that into Google it just comes up as like petroleum jelly and doesn't give me any answers.

    asked by sammy on May 18, 2008
  74. chem please help

    What characteristic best describes the low entropy associated with solids? A. The atoms in a solid are mostly metals. B. The atoms are held together with strong bonds. C. The atoms are arranged in a rigid structure. D. The solid has a high specific heat

    asked by Morgan on November 24, 2014
  75. english

    What grammatical structure is the italicized portion of the sentence? By mistake I opened a package addressed to my sister. adverb clause infinitive phrase past participial phrase elliptical clause adjective clause

    asked by Makayla on May 7, 2012
  76. PHYSICS! Really Confused! Test Tmrw

    A person is standing on a 10-m bridge above a road. He wants to jump from the bridge and land in the bed of a truck that is approaching him at 30 m/s. In order to clear the bridge railing, he has to jump upward initially with a speed of 5 m/s. HOW FAR AWAY

    asked by Emma on December 17, 2015
  77. English

    Hello! Need some ideas and suggestions.How can I explain to the learners of English as a foreign language (4th grade, 4th year of learning) the following two things: 1.They have a picture of a traffic in the street in their books. First they are repeating

    asked by refy on February 27, 2010
  78. English

    I would like help to understand and find some poetic devices in this poem please. Some of the ones I have found are caesura and enjambment i believe. Enjambment seems to push her away from reality and caesura brings her back if I'm analyzing it right? Also

    asked by Mohammad on February 14, 2017
  79. Bussiness

    In what way is each of the following a marketing activity? a. The provision of sufficient parking space for customers at a suburban shopping mall b. The purchase by clothing store of seven dozen sweaters in assorted sizes and colors c. The inclusion of a

    asked by Scott on May 15, 2008
  80. Marketing

    In what way is each of the following a marketing activity? a. The provision of sufficient parking space for customers at a suburban shopping mall b. The purchase by clothing store of seven dozen sweaters in assorted sizes and colors c. The inclusion of a

    asked by help on May 15, 2008
  81. science

    Are these correct for Democritius Help so confused - I read site and still trying to figure out. atoms of same element are exactly alike an atom is mostly empty space with a dense - postiveily chareged nucleus These are the choices Rutherford wave model

    asked by sam on November 3, 2007
  82. Business

    in what way is each of the following a marketing activity? a. the provision of sufficient parking space for custoemers at a suburban shopping mall b. the purchase by a clothing store of seven dozen sweaters in assorted sizes and colors. c. the inclusion of

    asked by Beverly on February 20, 2013
  83. Physics

    How can gravity be simulated in an orbiting space station? 1)aped like a bicycle wheel 2)Spin two pods connected by a cable 3)Rotate a cylinder to create centrifugal force as viewed by a person on the inside of the curved outer wall 4)All of the above

    asked by dave on October 7, 2016
  84. accounting

    Three objectives of a company's internal control system should be safeguarding assets, checking the accuracy and reliability of accounting data, and promoting operational efficiency. A fourth objective of a company's internal control system should be:

    asked by Debbie on June 23, 2009
  85. Chemistry

    A small hole in the wing of a space shuttle requires a 12.8cm^2 patch. What is the patch's area in square kilometers (km^2)? if the patching material costs NASA 3.21/in^2, what is the cost of the patch?

    asked by Lanise on September 6, 2010
  86. physics

    Determine the capacitance, in pF, of a paper-filled parallel-plate capacitor (dielectric constant=3.70) having a plate area of 5.40cm2 and plate separation of 590 µm. Use 8.85 x 10-12 F/m for εo, the permittivity of free space

    asked by Amanda on January 30, 2015
  87. history

    In which geographic region Texas is the NASA Johnson space center located A. Coastal Plains B. Great Plains C.Mountain and Basins D. North Central Plains I think the answer is A

    asked by please help ASAP on September 5, 2018
  88. history

    In which geographic region Texas is the NASA Johnson space center located A. Coastal Plains B. Great Plains C.Mountain and Basins D. North Central Plains I think the answer is B

    asked by Jake on September 5, 2018
  89. enviromental

    Completely mixed flow ractor CSTR and plug flow reactor (PFR) may have significantly different efficiencies depending on the reaction order. This problem asks you to compare the relative reactor sizes required to ensure 99.0 % removal of wastewatwer

    asked by don on October 14, 2012
  90. Statistics

    The Tyco Video Game Corporation finds that it is losing income because of slugs used in its video games. The machines must be adjusted to accept coins only if they fall within set limits. In order to set those limits, the mean wight of quarters in

    asked by Elizabeth on July 21, 2015
  91. economics

    essay on staff apraisal in an organisation What kind of organization? Large, small? Profit-making or non-profit? What are the duties of the staff? Who does the appraisals? What criteria does the appraiser use? Efficiency? Use of time? Cordial relations

    asked by kazeem on June 20, 2006
  92. statistics

    Below are the top 20 U.S. football teams in the seventh and eighth weeks of the 2003 season, along with the points awarded to each team by the ESPN/USA Today coaches poll. Research question: At á = .01, based on this data, is there a significant rank

    asked by Anonymous on December 21, 2011
  93. chemistry

    Why if you dissolve cobalt chloride solution in distilled water and then pour acetone in it, the bottom part of the graduated cylinder is red and the top part is blue? What do you mean by it has one color with water of crystallization? CoCl2*6H2O is a

    asked by Lydia on April 11, 2007
  94. Cosmology

    How do we explore the large-scale structure of the Universe in the modern day? - Using large spectroscopic redshift surveys. - By accurately measuring positions of nearby galaxies. - By observing galaxies in the Local Supercluster. - By studying clusters

    asked by qwerty on January 9, 2013
  95. English

    Rephrase the main idea of the sample in your own words, without repeating words or sentence structure from the original statement. "Right now, smartphones are selling like mad in the U.S. market, where sales jumped 84 percent between 2007 and 2008,

    asked by Jess on February 1, 2013
  96. Geometry

    Jason designed an arch made of wrought iron for the top of a mall entrance. The 11 segments between the two concentric circles are each 1.25 m long. Find the total length of wrought iron used to make the structure. Round the answer to the nearest meter.

    asked by Sonya on January 14, 2013
  97. math

    nina designed an arch made of wrought iron for the top of a mall entrance. the 11 segmentsbetween the two concentric semicircles are each 3 ft long. find the total length of the wrought iron used to make this structure. round your answer to the nearest

    asked by keyla on February 20, 2012
  98. english

    Writers often make common errors by adding improper punctuation. Identify and explain the sentence structure error in the following sentence: Terrance has collected sand from all of the exotic islands he’s visited, his favorite sample is the green sand

    asked by clay on December 9, 2014
  99. programming

    Write a MATLAB program to create and output the touch-tone telephone signals (Dual-Tone, Multi-Frequency, DTMF) for the input numbers 0 through 9 (disregard the * and # symbols). When a user presses a button on a telephone set, a signal is produced that is

    asked by Amanda on October 6, 2014
  100. math vector

    Find the unit tangent vector T(t) and find a set of parametric equations for the line tangent to the space curve at point P. r(t)=ti+t^(2)j+tk, P(0,0,0)

    asked by jay on February 7, 2014