Questions Asked on
April 13, 2011

  1. Math

    Whom should you see at the bank if you need to borrow money?

    asked by Alisha
  2. Math

    You are designing a rectangular playground. On your scale drawing, the vertices of the rectangle are (10, –9), (10, –3), and (13, –9). What are the coodinates of the fourth vertex?

    asked by David

    If the temperature is constant, then the atmospheric pressure P (in pounds/square inch) varies with the altitude above sea level h in accordance with the law given below where p0 is the atmospheric pressure at sea level and k is a constant. P = p0e-kh If

    asked by Anonymous
  4. Math

    he world population at the beginning of 1990 was 5.3 billion. Assume that the population continues to grow at the rate of approximately 2%/year and find the function Q(t) that expresses the world population (in billions) as a function of time t (in years),

    asked by Anonymous
  5. Statistic 103

    The average teachers salary in Connecticut( ranked first among states) is $57,337. suppose that the distribution of salaries is normal with a standard deviation of $7500. What is the probability that a randomaly selected teacher makes less than $52,000 per

    asked by Jennifer
  6. Buffer Solution

    You have 500.0 mL of a buffer solution containing 0.30 M acetic acid (CH3COOH) and 0.20 M sodium acetate (CH3COONa). What will the pH of this solution be after the addition of 93 mL of 1.00 M NaOH solution?

    asked by Nicole
  7. Chem 151

    Would my calculated molarity of HOAc in vinegar be too high, low, or unchanged if a) i forgot to rinse wet buret with vinegar b)delivered vinegar into a wet flask c)used a buret with a broken tip Any help please!!!

    asked by Matty
  8. math

    The only defined term of those listed is: line angle plane point

    asked by danny
  9. PD-20

    Surveys on job satisfaction reveal that well over this percentage of American workers are dissatisfied with their jobs A. 10 B. 30 C. 50 D. 80

    asked by Alondra
  10. Physcis

    In the figure below find the electric potential at point P due to the grouping of charges at the other comers of the rectangle. Q1= 8.0 uc Q2=-8.0 uc Q3= -12.0 uc

    asked by c harlene
  11. Chemistry

    What mass of baking soda (NaHCO3) would be required to neutralize 10.00mL of 12.1M muriatic acid remaining in a empty water bottle? HCl(aq)+NaHCO3(aq)=>NaCl(aq)+CO2(g)+H2O(l)

    asked by Mateo
  12. Chemistry

    How does the strength of the attraction between water molecules and sodium and chloride ions compare with the strength of the attraction between the sodium ions and chloride ions?

    asked by Guillermo
  13. Physics

    a 1000 kg car traveling at 30 m/s suddenly stops in 5 seconds. how much force was used to stop the car?

    asked by Kay
  14. Chemistry HELP!

    a) How would a too low molarity of NaOH affect the calculated molar mass of the unknown acid? b) How would it affect the calculated Ka of the unknown acid? If mistakenly calibrated pH meter using pH6 buffer instead of pH7 buffer, all ph meter readings were

    asked by Barbara
  15. Physics

    A 24 rifle bullet traveling 230 buries itself in a 3.9 pendulum hanging on a 3.0 long string, which makes the pendulum swing upward in an arc. Determine the vertical and horizontal components of the pendulum's displacement.

    asked by Cara
  16. allied health part 2-21

    which of the following statements about risk management is true? a. risk management is unique to the health care industry b. risk management is controlled and managed by hipaa regulations. c. risk management is concerned with reducing exposure to legal

    asked by sarah
  17. Precalculus

    The bacteria in a 8-liter container double every 2 minutes. After 55 minutes the container is full. How long did it take to fill a quarter of the container?

    asked by Josh
  18. Math

    A car travels along a straight road, heading east for 1 h, then traveling for 30 min on another road that leads northeast. If the car has maintained a constant speed of 48 mi/h, how far is it from its starting position? Round your answer to 2 decimal

    asked by Jessica
  19. chemistry

    Assuming that the volumes are additive, what volume of water must be added to 35.0mL of 23.0 M HCl to make a solution which is 3.00 M?

    asked by Denise
  20. Physics

    A trapeze artist weighs 8.00 x 10^2 N. The artist momentarily held to one side of a swing by a partner so that both of the swing ropes are at an angle of 30º with the vertical. In such a condition of static equilibrium, what is the horizontal force being

    asked by Becky
  21. Science/Math

    Hello, Suppose that a newly discovered element called centium has three isotopes that occur in nature. These are centium-200, centium-203, and centium-209. Assume that these isotopes occur in equal amounts in nature. What will be the average atomic mass of

    asked by Please help!
  22. geometry

    The volumes of two similar figures are given. The surface area of the smaller figure is given. Find the surface area of the larger figure. V = 8ft^3 V = 125ft^3 S.A. = 4ft^2

    asked by pj
  23. finance

    Kohers Inc is considering a leasing arrangement to finance some manufacturing tools that it needs for the next 3 years. The tools will be obsolete and worthless after 3 years. The firm will depreciate the cost of the tools on a straight-line basis over

    asked by Nick
  24. physics II

    Two point charges of equal magnitude are 8cm apart. at the midpoint of the line connecting them, their combined electric field has a magnitude of 45 N/C.Find the magnitude of the charge.

    asked by ike
  25. English, Poety

    What is the tone in the poem "Blessing" by Imtiaz Dharker.

    asked by Zawar
  26. Inorganic Chem

    If you forget to add phenolphthalein solution to a vinegar solution(after adding NaOH solution), how might you salvage the titration?

    asked by Robert
  27. pre-calc

    A hall 100 feet in length is to be designed as a whispering gallery. If the foci are located 21 feet from the center, how high will the ceiling be at the center?

    asked by Enoch
  28. college chemistry

    A galvanic cell is constructed with a silver-silver chloride electrode, and a nickel strip immersed in a beaker containing 4.97 x 10-2 M solution of NiCl2. Determine the balanced cell reaction and calculate the potential of the cell. in volts, assume a

    asked by jasmin
  29. math true/false

    All diagonals from a single vertex of a hexagon are drawn. Four triangles will result. True False true?

    asked by danny
  30. Physics 3

    f) Two capacitors, 3.0F and 4.0F, are individually charged across a 6.0V battery. After being disconnected from the battery, they are connected together with a negative plate of one attached to the positive plate of the other. What are the final

    asked by Ziera
  31. Chemistry

    if 130 g of KNO3 are added to 100 g of water at 40 degrees Celsius.How many grams do not dissolve?

    asked by Tay
  32. Chemistry

    Iron metal is formed during the reduction of iron(III) oxide: Fe2O3 + 3CO 2Fe + 3CO2 When 24.3 kg of Fe2O3 react with 14.6 kg of CO and 7.8 kg of Fe are recovered, what is the percent yield for the reaction? Pls.. help I am having a hard time finding the

    asked by komal
  33. Geology

    PLEASE HELP By applying the various principles, draw a cross section of an area in which the following sequences of events occurred. The relative time relationship for all events should be clear to you from your single cross section that shows what the

    asked by angel
  34. math

    the area of a rectangle is 100 square inches. the perimeter of the rectangle is 40 inches. a second rectangle has the same area but a different perimeter. is the second rectangle a square? explain why or why not.

    asked by Anonymous
  35. CHE103

    describe the hazards you should be aware of when you use 2.0 M HCl solution

    asked by Abdul
  36. Chemistry HELP!

    a) How would a too low molarity of NaOH affect the calculated molar mass of the unknown acid? b) How would it affect the calculated Ka of the unknown acid? If mistakenly calibrated pH meter using pH6 buffer instead of pH7 buffer, all ph meter readings were

    asked by Barbara

    What atomic orbital has the quantum numbers n = 3, l = 1, ml = -1?

    asked by HELP
  38. Physics 203

    A 2.4 m long rod of mass m1 = 11.0 kg, is supported on a knife edge at its midpoint. A ball of clay of mass m2 = 5 kg is dropped from rest from a height of h = 1.1 m and makes a perfectly inelastic collision with the rod 0.9 m from the point of support.

    asked by Kayla
  39. allied health part 2-17

    if an institutional review board is involved in a request for information, the information is likely sought by a a. health care facility b. researcher c. court d. substance abuse center

    asked by sarah
  40. maths

    express 0.00352 as p/q form

    asked by tsraksha
  41. Algebra II

    (6x4 +4x3 - 2x2 +5) - (3x4 - 2x3 +x+4)

    asked by Megan
  42. Math

    A parallelogram ABCD has lengths of sides and angles given below. Find the length of the diagonals AC and BD. (Round your answers to two decimal places.) AB = DC = 6 and AD = BC = 3, A = 40°

    asked by Jessica
  43. Statistics 103

    Why do most of the sample means differ somewhat from the population mean? What is this difference called?

    asked by Jennifer
  44. physics

    The density of gold is 19 times that of water. If you take a gold crown weighing 24 N and submerge it in water, how much upward force must you exert on the submerged crown to keep it from accelerating?

    asked by ann
  45. physics

    What are the first, second, and third frequencies audible from a 20 cm long organ pipe when (A) only one end is open and when (B) both ends are open. The speed of sound through the air inside the organ pipe is 343m/s.

    asked by ashley --- HELP PLEASEE!!!
  46. Earth science

    Broad areas of folded rock layers that resemble an upside-down bowl are called

    asked by BoB
  47. Physics

    A 120-V rms voltage at 1000 Hz is applied to a resistor and an inductor in series. If the impedance of this circuit is 110 Ù, what is the maximum value of the current?

    asked by Jen
  48. physics

    An induced emf occurs in a conducting loop of wire 1.12 m long as its shape is changed from square to circular. What is the average magnitude of the induced emf if the change in shaper occurs in 4.25 sec and the local 0.105 T magnetic field is

    asked by pHysicsLoVer
  49. physics

    A radioactive nucleus at rest decays into a second nucleus, an electron, and a neutrino. The electron and neutrino are emitted at right angles and have momenta of 8.55×10−23 and 5.33×10−23 , respectively. What is the magnitude of the momentum of the

    asked by Cara

    If a flute is fingered so it has a length of 0.30 m, what will be the frequency of the fundamental note you hear? If a clarinet is fingered so it has a length exactly the same as the flute in the previous question (i.e. 0.30 m) what's the frequency of the

    asked by JamieLee
  51. Physics

    The top string of a guitar has a fundamental frequency of 300 Hz when it is allowed to vibrate as a whole, along all its 60.0 cm length from the neck to the bridge. A fret is provided for limiting vibration to just the lower two-thirds of the string. The

    asked by ECU
  52. Physics

    A child having a mass of 45 kg sits 0.5 m from the center of a merry-go-round that is rotating with a period of 23 s. What is the centripetal force acting on the child?

    asked by Bob
  53. Algebra

    I invested $42,000 in three funds paying 5%, 7%, and 9% simple interest. The total annual interest from these investments was $2,600. The amount of money invested at 5% was $200 less than the amount invested at 7% and 9% combined. How much was invested in

    asked by Darrell
  54. physics

    When the frequency of a force applied to a system matches the natural frequency of vibration of the system, it starts vibrating with a: (I believe its larger amplitude)

    asked by ashley --
  55. Physics

    A faulty model rocket moves in the xy-plane (the positive y-direction is vertically upward). The rocket's acceleration has components a(t)_x=alpha*t^2 and a(t)_y=beta-gamma*t, where alpha = 2.50 , beta= 9.00 , and gamma= 1.40 . At the rocket is at the

    asked by Allison
  56. PD-20

    Career patterns are determined by A. Mental ability B. Socioeconomic level C. Personality characteristics D. limitations E. all of the above

    asked by Alondra
  57. Math

    A 1 pound bag of candy containing 502 piecescost 16.8 cents per ounce. What is the cost of 1 piece of candy?

    asked by Philip
  58. Statistical Psychology

    A social psychologist was interested in how communication patterns can affect creative problem solving in small groups. seven groups of each of two types were formed: vertical and horizontal. In the vertical groups, participants were organized

    asked by Caitlin
  59. physics help!

    The equation of motion of a particle in vertical SHM is given by y = (17 cm) sin 0.70t. (a) What is the particle's displacement at t = 1.1 s? (b) What is the particle's velocity at t = 1.1 s?(c) What is the particle's acceleration at t = 1.1 s?

    asked by anonymous
  60. college chemistry

    If the equilibrium constant (Keq) equals 9.12x1012 for the following reaction between strontium and magnesium: Sr(s) + Mg2+(aq) Sr2+(aq) + Mg(s) Calculate Eo for a strontium=magnesium battery.

    asked by alex
  61. finance

    Multinational firms have found that they can lower borrowing costs

    asked by Anonymous
  62. C++ programming computer

    I'm having some trouble trying to program these problems and putting them into the main function. Please help me by giving some advice or website that offer good information for me. The questions are below here: 1. Write a function that accepts a string of

    asked by Milo
  63. science

    I have answer the question can someone review it and tell me how it sounds or if I need to add something Post your response to the following: If you were an environmental researcher and were given funding to assist with one environmental issue, which of

    asked by girl
  64. Physics

    The guitar is a musical instrument of the chordophone family, being a stringed instrument played by plucking. The tone of an acoustic guitar is produced by the vibration of the strings. Guitar spring (made out of steel) has length L = 0.6 m. The elastic

    asked by ECU
  65. Chemistry

    If 100 grams of NI3 is detonated, calculate the Gram of N2 and I2 formed.

    asked by Jennifer
  66. personal developmetn 20 Chapter 1

    This stage reflects initial work experience that may have started only as a job but that offers experiences for growth so that it becomes a part of the self-concept. A. Establishment B. maintanence C. Expolration D. Disengagement

    asked by Alondra
  67. chemistry

    for this question How many liters of H2 gas at STP are produced when Zn reacts with 125 mL of 6.00 M HCl? my book answers it this way: 0.125 L x 6.00 mole HCl x 1 mole H2 x 22.4 L 1 L 2 mole HCl 1 mole = 8.40 L of H2 gas where did the 22.4L come from?

    asked by Blain
  68. math help me!!

    is square root of 56 a rational number? explain uranswer using what you know about rational and irrational numbers. thnx alot!

    asked by alexis
  69. science

    give three examples of equipment used when heating objects

    asked by dhruv
  70. math

    Two angles of the triangle have given measures. Find the measure of the third angle x degrees, 120 degrees minus x degrees

    asked by x
  71. math

    The weights of boxes of Brand Z cereal were found to be normally distrubted with a mean of 16.5 ounces and a standard deviation of 0.4 ounces. a. what percentage of the boxes will weigh more than 16 ounces? b. what percentage of the boxes will weigh

    asked by brenda
  72. math

    The weights of boxes of Brand Z cereal were found to be normally distrubted with a mean of 16.5 ounces and a standard deviation of 0.4 ounces. a. what percentage of the boxes will weigh more than 16 ounces? b. what percentage of the boxes will weigh

    asked by shirley
  73. Essay titles

    If you are writing an essay, and in the title of your essay, you have the title of a novel, does the title of the novel have to be italicized? For example, if you were writing an essay (MLA format)titled A New Perspective on The Scarlet Letter, would The

    asked by Megan
  74. Physics

    A 1.0 KΩ resistor is connected in series with a 10.0 mH inductor, a 30.0 V battery, and an open switch. At time t=0, the switch is suddenly closed. What are the voltage drops VR and VL 20.00 µs after the switch is closed?

    asked by Sam
  75. probability and counting

    (1 pt) A box contains 25 yellow, 28 green and 38 red jelly beans. If 13 jelly beans are selected at random, what is the probability that: a) 5 are yellow? b) 5 are yellow and 7 are green? c) At least one is yellow?

    asked by Hannah
  76. English

    The teacher will show the students a picture of a bess beetle with all the parts labeled. Does bess need to be Bess? I used bess beetle through my whole paper not sure when to capitalization bess.

    asked by Pete
  77. chemistry

    How many grams NO gas can be produced from 110mL of 4.00 M HNO3 and excess Cu? 3Cu(s) + 8HNO3(aq) – 3Cu(NO3)2(aq) + 4H2O(l) + 2NO(g)

    asked by samantha
  78. statistics

    Suppose 95% of the data fall between 1.4 and 46.8. Using the empirical rule, give an estimate of the standard deviation. Thanks

    asked by Darci
  79. Physics

    You want to make an open-ended flute, open at both ends, with fundamental frequency (lowest pitch sound it produces) of 680 Hz. Assume speed of sound in air is 340 m/s. a) What should the length of the flute be?

    asked by ECU
  80. calculus

    Use Newton's method to solve the equation sec x = 4 in the interval x in (0, pi/2). In other words, use Newton's Method to compute arcsec(4). (You need to make a good initial guess for the root otherwise Newton's method will probably fail. Please justify

    asked by Anonymous
  81. college chemistry

    If the equilibrium constant (Keq) equals 9.12x1012 for the following reaction between strontium and magnesium: Sr(s) + Mg2+(aq) Sr2+(aq) + Mg(s) Calculate Eo for a strontium=magnesium battery.

    asked by alex
  82. Statistics

    Suppose 95% of the data fall between 12.4 and 46.8. Using the empirical rule, give an estimae of the standard deviation

    asked by Darci
  83. 8th grade math

    Suppose x and y are real numbers such that xy = 9 and x2y + xy2 + x + y = 100. What is the integer value of x2 + y2? (Target Round #6)

    asked by Anonymous
  84. Spanish6th grade

    What does the Spanish word cuate mean. I think it means best buddy but I'm not sure and I can't find it anywhere?

    asked by Jordie
  85. chemistry

    Calculate the equilibrium vale of Pb +2 (aq) in 1.00 L of saturated PbCl2 solution to which 0.250 mole of NaCl has been added. 60.0 ml of 0.0300 M NaCl 60.0mL of 0.0500 M Pb(NO3)2

    asked by Carlos
  86. FRENCH - Superlatives

    1. Le film/interessant/ a Canada For this excerise I have to fill in the blanks and mention which film I think is more interesting in Canada. Inception, le film est plus interessant a Canada. 2. La femme/joli/au monde I don't know what name to mention, so

    asked by Sydney
  87. College Algebra

    Write a quadratic equation having the given solutions 14 and -9

    asked by carole
  88. math

    On a sunny day, a tree casts a shadow 60 feet long. At the same time, a yardstick casts a shadow 2 feet long. How tall it the tree??

    asked by Kenzay
  89. marketing

    Explain the importance of an organized new-product development process and illustrate how it might be used for.

    asked by ak
  90. Chemistry

    Calculate the amount of heat required to raise the temperature of a 33 g sample of water from 6 Celsius to 24 Celsius.

    asked by Kate
  91. math

    arrange fractions from smallest to largest 3/7, 6/7, 1/7, -1/2, 2/7

    asked by mick
  92. allied health part 2

    which one of the following activities is considered part of health care operations? a. reviewing the competency of health care workers b. administering a stress test a patient her prescribed medication d.recording a patient's blodd pressure and

    asked by sarah
  93. math

    Manuel wants to calculate how many miles his farthers car travels on one gallon of gas. He knows that on a fu 15- gallon tank of gas, the car can travel 225 miles. Write an proportion that he could use to calculate the cars mileage per gallon(x)

    asked by Elizabeth

    In what way does the choice of a data type for a field help to control the integrity of that field?

    asked by MPU
  95. business

    What are some of the operations management practices that can help bring manufacturing back to the United States? How can a focus on quality improve manufacturing?

    asked by yo tang
  96. physics

    The intensity of sound is x W/m2 at a distance of 5 m from the source. What is the intensity of the sound at a distance of 20 m from the source?

    asked by ashley --
  97. chemistry

    What concentration of ammonia, [NH3], should be present in a solution with [NH4+]= 0.734M to produce a buffer solution with pH= 9.13? For NH3, Kb= 1.8x10^-5

    asked by rooftops
  98. allied health part2-19

    of the following types of information, which one has the strictest rules regarding the release of informationg? a. substance abuse information b. mental illness information c. genetic information d. adoption information

    asked by sarah
  99. Chemistry

    I had to miss a lab yesterday. Do you know of a website where I can virtually prepare methyl salicylate (oil of wintergreen)? The experiment involves salicylic acid + methyl alcohol + concentrated sulfuric acid + heat....then when two layers form collect

    asked by Stephanie
  100. Math

    Alfredo walked 24 miles in the walk-a-thon. His friend Terence walked 1/3 as many miles. How many miles did Terence walk? I really don't understand this problem could someone help me.

    asked by Lisa
  101. Math

    A can of worms for fishing costs $2.60. There are 20 worms in a can. What is the cost per worm? At this rate, how much would 26 worms cost? An 11 ounce bag of candy cost $1.99. What is the cost per ounce, rounded to the nearest cent? What is the cost per

    asked by Jon
  102. science

    identify the standard unit of mass

    asked by dhruv
  103. science

    why are dog fleas more successful parasitesthen bacteria that cause deadly diseases?

    asked by dylan
  104. Science

    What is the main idea and list a least 2 details about the main idea? Edwin Hubble came up with a way to classify galaxies by shape.He labeled elliptical galaxies E.He classified by th size of the galaxy's nucleus and the tightness of it's arms.

    asked by Frances
  105. algebra

    using the substitution method how do you solve y=-1/3x y+2x=5

    asked by renee
  106. math

    Suppose that the population of a certain townis made up of 45% of men and 55% of women. Of the men, 40% wear glasses, abd of the women, 20% wear glasses. Given that a person chosen at random from the town wears glasses, what is the probability that the

    asked by Anonymous
  107. Physics

    Waves of all wavelengths travel at the same speed v on a given string. Traveling wave velocity and wavelength are related by v=lambda*f,where v is the wave speed, lambda is the wavelength (in meters), and f is the frequency [in hertz]. Since only certain

    asked by ECU
  108. Biology

    Distinguish between focal adhesions and adheren junctions, desmosomes and hemidesmosomes , and desmosome and focal adhesions

    asked by Zukii
  109. precalculus

    Write and simplify the difference quotient for the function b(t)= 3t^2-4t+5 over the interval [7,7+h]

    asked by katrina
  110. Physics

    A hiker sees a lightning flash, 13.0 s later he hears the sound of the thunder. Recalling from his study of physics that the speed of sound in air is approximately 1/3 km/s he estimates that the distance to where the lightning flash occurred is

    asked by Annie (Please Help)
  111. Economics

    In the long run, what effect will a decrease in aggregate demand have on real output?

    asked by Jennifer
  112. ALGEBRA1


    asked by LORETTA
  113. Physics

    Find the total electric force on a +q charge placed at x_0 due to the line charge and the point charge

    asked by Alejandro1

    In the emission spectrum of hydrogen what is the wavelength of the light emitted by the transition fro m n = 4 to n =2.

    asked by HELP
  115. English

    What are some high level questions about the moon? Please put at least 4. What are some high level questions for this passage? There was once a sheperd who loved his sheep but was growing tire of caring for them. One hot day, he sat down under a tree and

    asked by Catherine
  116. social civics exam 6 question #35

    (A) Name the three organizations that are made up mostly of farmers (1) (2) (3) (B) Explain how each organization works to help farmers (1) (2) (3)

    asked by sareh
  117. Math

    Mr. Ranier's car uses about 1.6 fluid ounces of gas per minute when the engine is idling. One night, he parked his car but forgot to turn off the motor. He had just filled his tank. His tank holds 12 gallons. About how many hours will it take before his

    asked by Sean
  118. algerbra 2

    given that a parabola has a directix of =-3.25 and focus of (0,-2.75) find the vertex

    asked by Ashley
  119. biology

    specialized cells in animals are all descended from a single ancestor cell.How are the specialized and the nonspecialized cells of the cellular slime molds related?

    asked by maggie
  120. English

    Hello. I've already asked this question but I'd like to clarify if the sentence "Suggest your local radio stations play our songs" sounds normal natural English (it's a command, meaning "offer our songs to radio stations", "take them to radio stations".

    asked by Ilma
  121. chemistry

    Calcultate the volume (in mL)of 0.250M silver nitrate solution required to react completely with a 5.00g piece of copper wire. (Assume the reaction runs at 100% yield.)

    asked by Tinkerbell
  122. Spanish-7th please check

    Did I answer these correctly? ¿Qué necesitas para jugar al tenis? Necesito una raqueta y una pelota de tenis para jugar al tenis. ¿Cuándo juegas el ajedrez? Yo juego el ajedrez por la noche.

    asked by Katie
  123. physics

    A magnetic field is oriented at an angle of 42 degrees to the normal of a rectangular area 5.5 cm by 6.8 cm. If the magnetic flux through this surface has a magnitude of 4.8 x 10^-5 Tm^2, what is the strength of the magnetic field?

    asked by lovergirl
  124. Math

    Identify a pattern and write the next three terms. 600, 300, __, 30, 6, __

    asked by Kathrin
  125. chemistry

    how many ML of each of the following solutions will provide 25.0g of KOH? A)2.50 M of KOH b)0.750 M of KOH c)5.60 M of KOH NEED HELP setting up problem!!

    asked by cat
  126. physics

    Who made the camera and why?

    asked by Anoymous
  127. math

    there are four tiles in a bag. two are yellow one is green and one is blue. how many possible out comes are there when removing one tile?

    asked by lindsey
  128. geometry

    A polygon has d diagonals. If the polygon had one more side, it would d + 10 diagonals. How many sides does the polygon have?

    asked by melissa
  129. Biology

    Cellular slime molds begin life as a group of separate organisms,or individuals.After congregation,they become a single multicellular individual.Describe what is meant by this statement.

    asked by maggie
  130. Physics 3

    A 2.3-keV proton is moving horizontally and passes perpendicular to the Earth’s magnetic field at a location where the field magnitude is 52.0 T. i) Determine the magnetic force on the proton? ii) Find the ratio of this force to the gravitation force

    asked by Ziera
  131. English

    The Modern Drama collection theme is Opening Doors. Discuss examples of the ways in which doors and keys are used as symbols in The Miracle Worker. Make at least two references to specific details in the play to support your ideas.

    asked by Austin
  132. science

    if the teacher says it is safe to smell a chemical, outlinethe technique you should use

    asked by dhruv
  133. English

    Hello. Please tell me if the following variants are possible: "I like this poem most of all / most/ the most/ best /best of all". THANK YOU VERY MUCH.

    asked by Ilma
  134. Language Arts

    In this sentence: I held it back and managed a squeaky "yes" in response. How would you correctly punctuate the yes part?

    asked by Erin
  135. French - The Imperative - SraMcGin

    Okay. I really need help understanding "The Imperative", and some notes on the Superlative would be great too. I just finished understanding about the "Comparative". And it is pretty easy. I actually think that the Superlative seems to be easier than the

    asked by Sydney
  136. Algebra

    I have never had algebra and cannot figure out how to work through the problem below [(x + 1)² - (2x + 1)]1/2 + 2|x| - 6 = 0 Can you show me the steps for solving the problem?

    asked by Coni
  137. Environmental Science

    I'm confused about how hybrid cars gas used to accelerate, or is that electric power? So on highways, they just rely on electric power, right?

    asked by Heather
  138. algebra

    How can I justify each step 1/2x =15 2(1/2)x = 2*15 x =30

    asked by David
  139. economics

    What is the economic rationale for the Federal government to dictate that 7.5 billion gallons of renewable fuel be produced by 2012?

    asked by April
  140. FSK 114 (PHYSICS)


    asked by Limema
  141. English

    1. The acting of the lead actor was great. 2. The main actor's acting was terrific. 3. The actings of some actors and actresses were fantastic. 4. Two main actors' actings were outstanding. 5. The scenery around the ship was very nice. 6. When the ship was

    asked by rfvv
  142. Math

    What is the product of 11/15 and 12/7?

    asked by Lori
  143. us history

    Why were the political debates of the early United States so intense and violent?

    asked by meme
  144. Calculus

    Find the limit: lim x-> 2 ln(x/2)/ (x^2−4) Can someone help me with this?

    asked by Catherine
  145. geometry

    What are two other ways to write equation 1/4 of 12=3

    asked by Anonymous
  146. BUFFER

    What is the pH of a solution made by adding 50 mL 0.1 M HCl to 150 mL 0.099 M NH3?

    asked by Nicole
  147. physics help!

    The displacement of an object is given by y = (4.6 cm) sin 28ðt. (a) What is the amplitude? (b) What is the frequency? (c) What is the period?

    asked by anonymous
  148. Grammar

    I need to make the below sentences parallel. To succeed in the new economy, workers will have to learn throughout their careers, adapt to changing circumstances, and self-motivation will be needed. My answer - To succeed in the new economy workers will

    asked by Laura
  149. english092

    I need help brainstorming on People in America living above their means.

    asked by Doris
  150. Math

    lisa checks the stats for her favorite puzzle game on her Ipod. she sees that she has won exactly 72% of the 2400 puzzles that she has played. what is the minimum numbers of puzzles that lisa must win before she has won at least 73% of the total number of

    asked by Diana
  151. English

    I forgot to include the following sentences. Thank you vy much for your help. 1) The station orbits earth 16 times a day so he saw a sunrise evey 90 minutes. He also carried out some important experiments and took a lot of photos. 2) Actually, he lost his

    asked by Mike1
  152. calculus

    I need a step-by-step limit definition of derivative for y = ln(x).

    asked by Dave
  153. ENGLISH


    asked by ISABEL
  154. Physics

    explain the concept of electric potential difference in terms of work done in transferring the charge

    asked by Anonymous
  155. Math

    compound and interest Using the below values please calculate the amount accumulated (future value) *Initial principal=$2000 *Interest Rate=9% *Number of years 7 *Monthly compounding

    asked by George
  156. chemistry

    what sample size of .9181M vinegar would require 27.50 mL of .5185M of NaOH for neutralization?

    asked by maddie
  157. science

    Imagine that you have discovered a constellation that appears above the Northern Hemisphere.You have the honor to name it.Describe the star pattern,as well as the color and brightness of the stars.Choose a descriptive name,and explain your choice.

    asked by Frances
  158. Chemistry

    Determine the prcentage composition of the compund HCl?

    asked by Jessica
  159. Rates

    Mr. Ranier's car uses about 1.6 fluid ounces of gas per minute when the engine is idling. One night, he parked his car but forgot to turn off the motor. He had just filled his tank. His tank holds 12 gallons. About how many hours will it take before his

    asked by Sean (PLEASE HELP!)
  160. Physics

    Two upward wave pulses are generated at opposite ends of a string and travel toward each other. One has an amplitude of 4.85 cm and the other has an amplitude of 3.27 cm. What is the maximum displacement of any particle of the string?

    asked by ECU
  161. english

    Many writers create characters who are blissfully unaware of how they are perceived by others. One of the most complex examples of this is Chaucer's Pardoner. In one character we see a complex mix of what he is, what he is supposed to be, what he thinks he

    asked by Amy
  162. algebra

    14, -9 write a quadratic equation with these solutions. With 1 being there greatest common factor

    asked by carole
  163. Math

    Lois garden can hold 24 pepper plants and measures 51 square feet. Id Lori increases size of her garden to 104 feet,approximately how many pepper plants she could grow?

    asked by Ryan
  164. business managemenet

    Describe or diagram a process or procedure that is similar between the organizations. Explain the process or procedure from beginning to end.

    asked by brenda
  165. physics

    what potential difference delta V is required to accelerate protons from the rest to 10% of the speed of light?

    asked by ike
  166. US History

    What are proposals for new laws called?

    asked by Pooja
  167. chemistry

    What are the quantum numbers for a 3d atomic orbital?

    asked by James
  168. algebra

    In your own words, detail the process of polynomial division when the divisor is a monomial. Demonstrate the process with an example. How does this process change when the divisor is not a monomial?

    asked by Opera
  169. Math

    i need the answer to finding the number of three letter permutations of the letters l,s,u,v,r

    asked by Rory
  170. math

    kris scored 630 points on a particular section of a CPA exam for which the score were normally distributed with a mean of 600 points and a standard deviation of 75 points. At a differenttime, kerry scored 540 points on the same section, for which scores

    asked by shirley
  171. geometry

    generalization that supports each statement.

    asked by Anonymous
  172. Game Theory

    Hi can anyone help me with my homework in this subject? :)

    asked by Pipi
  173. math

    a triangle is a figure formed by three segments connecting three collinear points true or false?

    asked by cassie
  174. music

    what the difference between Antonio Vivaldi and Claudio Monteverdi

    asked by sally
  175. math

    factor each of the following: a)x^2+10x+25 b)x^2+16x+28 c)x^2-9x+14

    asked by miechelle
  176. physics

    Why do many musicians wear earplugs during their performances even though the intensity of the sounds produced is lower than the threshold of pain?

    asked by ashley --
  177. Physiology

    If you placed the stethoscope on the patient's bracial artery, but did not put the BP cuff on the patient, you wouldnt hear blood flow sounds. Explain Why you woundnt hear hear bllod floww sounds if you didn't put the BP cuff in the patient?

    asked by Ivy
  178. vectors and physics

    A 40 kg weight is suspended at P which is held up By the ropes PQ and PR the ropes make angles at 160 degrees and 130 degrees respectively with the vertical, find the tension in the ropes

    asked by confused
  179. science

    what is the defferent between diapragm cell and mercury cell?

    asked by ndumiso
  180. statistics

    Discuss the assumptions for using a chi-square test. Research articles from the Ashford Library and provide practical examples from the research to support your assumptions. Include a citation of one article you used for your research.

    asked by steve
  181. science

    Outline the purpose of each of the following pieces of equipment. (a) heatproof mat (b) evaporating stand (c) test-tube rack (d) retort stand

    asked by dhruv
  182. To Francesca and James

    I have added comments to your solution of the inclusion/exclusion problem at the end of the original post: Feel free to go back and check it out.

    asked by MathMate
  183. MATH 15 Stats

    simple random sample of 50 women on new product of the 50 women, 60% reported they like the new product, fina a 90% confidence interval for the true proportion of women.

    asked by Vicky
  184. Essay conclusion

    I am trying to write a conclusion for my essay about connecting my author's life to her books. Can anyone give me some tips on how to write a conclusion without simply restating what I said in the introduction? Thank you!

    asked by Alex
  185. Phys

    The total impedance of an RC circuit with a resistance of 200 Ù is 1060 Ù. If the frequency of the applied voltage is 20.0 Hz, what is the value of the capacitance in this circuit?

    asked by Sam
  186. Physics

    Given a line of charge in the x-axis which exists the from a to b with a charge distribution of lambda(x)= Cx(X_o-x)^2, calculate the total electric field at x_o. (X_o, C, a and b are positive; a

    asked by Alejandro1
  187. psychology

    How should I answer these question for this assignment that take away the stereotypes. have more fun. are great lovers. are good mathematicians. all look alike. have bad teeth. are bad drivers. are absent-minded. are ditzy.

    asked by Anonymous
  188. Grammar

    words that rhyme with soon

    asked by Ann
  189. US Government

    How do both Congress and special interest groups compete against the president for control of policy (mainly foreign policy)?

    asked by Anna
  190. Calculus AB (AP)

    Hi, I have a calculus test tomorrow and I understand how to complete all of the problems, but I am unsure behind the reasoning of taking two derivatives. Can someone please explain the following: 1. g(x)=e^(f(x)) g'(x)=e^(f(x))f'(x) 2. f(x)=Integral from 0

    asked by Jake
  191. Math

    Signs in a department store read, "75% off original prices when you take an extra extra 50% off already reduced prices." By what percent were original prices reduced before today's sale?

    asked by Zee
  192. alagbra 2 trig

    solve the equation 2ln(x+5)-1=7

    asked by Anonymous
  193. statistics

    The typical American generates about 3.8 pounds of solid trash per day with a standard deviation of 1.5 pounds. Assuming that the histogram for trash produced per day is aprox. bell shaped, between what two values will 95% of the observtion fall?

    asked by Darci
  194. Math

    Imagine there is a triangle with two interior angles of 45◦ . If the shortest side of the triangle is 1cm long, what is the area of the triangle?

    asked by Ladoo
  195. math

    how would do you do expressions like 5(2x+6)=-4(-5-2x)+3x

    asked by diane
  196. algebra

    what is -3x-y=-15 using the 8x+4y=48 elimination method

    asked by kyra
  197. English

    1. Paste the wall with paper. (Is this sentence correct?) 2. The nurse mixed him a bottle of medicine. 3. The nurse mixed a bottle of medicine for him. (Are both grammatical?) 4. The Sahara desert stretches across North Africa. 5. The Sahara desert

    asked by rfvv
  198. Algebra

    x+1/6=-2/3 solution set?

    asked by Tammy
  199. ipc

    investigate and compare economic and environmental impacts of incandescent light bulbs versus the various fluorescent lamps, solar lamp, and oil burning lamp or candles.

    asked by poo
  200. help me in math!

    is -5 a real #? rational #? irrational #? whole #? integer? counting (natural) #?

    asked by alexis
  201. FSK 114

    show that the ray of light ,on passing through the parallel sided slab of refractive index n, undergoes a lateral displacement.

    asked by Limema
  202. Socials

    What region is each of the following places located in? a) kamloops, BC --I think Intermountain. b) Saskatoon, Sask -- I don't know. I thought it was Canadian Shield, but it isn't. c) Vancouver, BC --Coast Mountains d) Toronto, Ont. --Great Lake St.

    asked by Anonymous
  203. Nutrition

    The lacy –leafed, tap-rooted plants grew first on the windswept highlands of Afghanistan. The Greeks used this plant as a digestive tonic when they had overeaten other foods.

    asked by Amy
  204. Socials

    Name 5 of choices of cities in regions. Winnipeg --The plains Charlottetown --Atlantic Canada (Is there another name for this?) Edmontion --Interior Plains Yellowknife --Mackenzie District (Another name for this?) Whitehorse --Yukon/BC Mountains (Another

    asked by Anonymous
  205. math

    A rhombus has a perimeter of 40 cm and a height of 8 cm. What is the length of each side?

    asked by john sou
  206. math grade nine

    can someone please tell me if this answer is correct p-3+2p-9=0 p+2p-3-9=0 3p-12=0+12=0 3p/3 = 12/3 p=4

    asked by peyton
  207. Math

    Which of the flowing formulas a correct rewriting of the formula a=6b - 12? A. b= a- 12/6 B. b= a + 12/6 C. b= a/6 + 12 D. b= 6a - 12

    asked by Leah
  208. Chemistry

    Besides the fact that it would reduce pollution, why would a hydrogen fuel based car be a better choice than a regular gasoline fosil fuel vehicle?

    asked by Karen
  209. Socials

    Name some US cities and their regions. Chicago --Appalachian philadelphia --? pittsburgh --Plateau saint louis --Plains Detroit --?

    asked by Anonymous
  210. riding

    story the ugly duckling. what is the lesson in this story? character traits

    asked by senaya
  211. math -discrete math

    Calculate P({{x}})x P(P({{{x}}})) Find the power set.

    asked by J Velji
  212. Algebra

    a roof rises 2.4 feet vertically and 7.3 feet horizontally. what is the grade of the roof?

    asked by Meg
  213. Math

    Find the unit rate. Roger's heart rate (82 beats per minute) for 30 seconds.

    asked by Amy
  214. Math/science

    describe the symmetries of a water molecule.

    asked by Zee
  215. science

    why are dog fleas more successful parasitesthen bacteria that cause deadly diseases?

    asked by kaylee
  216. UK

    The velocity of an object t seconds after it started moving is t(t-9). Find the total change in the object's position in the 6th second.

    asked by Anonymous
  217. accounting

    The local school system asks you to submit a proposal to do preemployment physicals for 60 bus drivers. What financial or accounting information do you need to submit the proposal?

    asked by antionette
  218. english

    count the letters in each word. write them in the right box .2, 3, 4, 5

    asked by esther
  219. math

    weekly take home pay for those 20 graduate teaching assistants from university z: 500.75, 217.43, 488.25, 405.78 485.46, 495.48, 370.75, 435.40 479.65, 482.56, 470.28, 489.90 382.50, 500.75, 465.32, 481.25 506.43, 225.50, 504.38, 179.25 1. what are the

    asked by mary
  220. Math

    Ray makes an array that has 4 rows of 4 counters. He wants to make two more arreys using the same number of counters. He wants more than one counter in each row. What two arrays can he make? Please help!

    asked by Bell
  221. chemistry

    What is the mass of the organic product between 2M solution of cyclohexene and 45% solution of potassium permanganate? The volumes of the solutions are the same and equal to 45mL. All needed densities are approximated to 1g/cm3.

    asked by jls9119
  222. Math

    Ms.abbot went on a road trip. The trip was 792 miles and the average price of gasoline was $1.30 per gallon. What information is needed to to find the amount spent on gasoline for the trip? A. Number of hours the trip took B. Number of miles per hour the

    asked by Mathisthebest
  223. Physics

    explain the concept of electric potential difference in terms of work done in transferring the charge

    asked by dj
  224. Physics

    The moon exerts a gravitational force that is about 1/6 that exerted by Earth. Eplain why the mass of an object measrued on the moon using a balance is the same as if the object were on Earth's Surface/

    asked by Ty
  225. Physics

    With the formula T=2pi(sqrt)(m/k) how do I determine the experimental value of the spring constant using the information on the table below. The info that I have on my table is: Masskg Average time for 10 T(s)T^2(s^2) vibrations 0.1 5.05 .505 .255 0.2 7.22

    asked by Annie (Please Help)
  226. Health

    what are the health risks of binge drinking?

    asked by Punkie
  227. maths

    in a triangle ABC, C=10CM A=12CM ANGLE B Is 20 DEGREEZ calculate the lenght of side b

    asked by anjai
  228. Physics 3

    A 2.3-keV proton is moving horizontally and passes perpendicular to the Earth’s magnetic field at a location where the field magnitude is 52.0 T. i) Determine the magnetic force on the proton? ii) Find the ratio of this force to the gravitation force

    asked by Ziera
  229. Math

    compound and interest Using the below values please calculate the amount accumulated (future value) *Initial principal=$2000 *Interest Rate=9% *Number of years 7 *Monthly compounding

    asked by John
  230. Fractions

    Crate has 24 pieces of fruit . 1/2 are oranges, 1/4 are mangos and 2/8 are pineapples. Howmany oranges are there, how many mnagos and how many pineapples? Al ate 1/8 of a sandwich,Bob ate 1/8, then Bill ate 1/4. How much did they eat all together? What

    asked by Tom
  231. Socials

    What 5 main islands are there in southern parts of Canada? Ive only got PEI, and Vancouver Island. Where are the rest?

    asked by Anonymous
  232. Physics

    Two waves with different periods are described mathematically by: y1 = (7.0 m)cos[ 2£kt/(3.0 ms)-£k/2 ] y2 = (2.0 m)cos[ 2£kt/(3.1 ms)-3£k/2] What is the beat frequency for these two waves?

    asked by James
  233. science

    list 10 examples of slow changes over a long time. list 10 examples of quick changes over a short time.

    asked by Bri
  234. physics

    What is the average current through a conductor that carries 4 375C during a 2 min time period?

    asked by Richard
  235. Physics

    If a +q charge is placed at d in the x-axis (x_0

    asked by Alejandro1
  236. Fractions

    Add the following. 1/2+3/12+1/4; 3/12+1/2+1/4;5/6+1/3;1/4+3/8+1/4

    asked by Tom
  237. Religion

    could someone translate this into words that a teenager would use? All the believers were one in heart and mind. No one claimed that any of their possessions was their own, but they shared everything they had. 33 With great power the apostles continued to

    asked by Rebecca
  238. science

    convert the following lenghts into millimeters. (a) 25centimeters (b) 2.5meters

    asked by dhruv
  239. English

    I'd like you to check these sentences for me, please. Thank you very much. It's urgent! 1) Virginia Woolf wanted to explore man's mental experience following what Joyce had already done in England Proust in France. S 2) he abondoned traditional writing

    asked by Mike1
  240. Physics ( HELP)

    2) Sketch a graph of height vs. time for a projectile fired at 15 degrees, 45 degrees and 60 degrees to the horizontal.

    asked by H.T
  241. biology

    when they say collagen content in tissue, what do they mean by "content"

    asked by tech
  242. math

    Write a formula for the height of a trapeziod based on the formula for it area A= 1/2(base1 + base2)h

    asked by brittany
  243. algebra

    6x + 2y = -2 4x + y = 1

    asked by Maria
  244. math

    What are the steps to the solution for this problem? What is the difference between 330 and half n equals 114?

    asked by Sandra
  245. English

    what opportunies do you have to write

    asked by Akeem
  246. algerbra 2

    if the sum of the focal radii of this ellipse is 12 what is the value of a^2?

    asked by Ashley
  247. chemisty

    The pressure of a gas has increased from 300 kPa to 600 kPa. The volume of the container has not changed, and the number of moles of the gas has not changed. The temperature of the gas has _____.

    asked by Anonymous
  248. Chemistry

    how many grams of a solution are present if the solution contains 12.5g of KCL and is 43% by mass?

    asked by Ryan hawkins
  249. economical management sciences/accounting

    please help! Why are some goods zero-rated?

    asked by katiyar
  250. algebra

    is the set (-2,3)(3,4)(-2,5)(6,-7) a function

    asked by kim
  251. chemistry

    How much Fe3O4 is produced when 50g of Fe is reacted with exess water vapor

    asked by mike
  252. math help me plz!!

    i recievbed 200.00$ for a gradution gift. i spent 50% on clothing. 20%on cds. 25% on movies. and 5% on savings. how much money did i spent on each catergory?

    asked by alexis
  253. Math

    Could you please check my answer? Subtract: (6a+2b-5c)-(3a+2c) My answer was: 3a+2b-7c

    asked by Sammy
  254. English

    Hello. Please help me with the preposition: 'links to our pages in/on(?)social networks'. Maybe 'links to our social networking pages'? Thank you.

    asked by Ilma
  255. Chemistry

    What is the mass of S2Cl2 if 342 grams of S8 is reacted with an excess of Cl2?

    asked by Jennifer
  256. help(math)

    Signs in a department store read, "75% off original prices when you take an extra extra 50% off already reduced prices." By what percent were original prices reduced before today's sale?

    asked by Diana
  257. Math

    /-8/+/5/ Simplify??? the lines are supposed to go straight but ya i cant find how to do this or the answer please HELP!!!

    asked by Kenzay
  258. Chemistry 111

    The heat of fusion for a solid is .825kJ/mole. the formula weight of the solid is 150.24. How many grams of this solid can be melted by 305J of energy?

    asked by Janna
  259. Math

    let x and y be real numbers. find the area enclosed by the graph of the following equation: abs(2x)+abs(2y)=1

    asked by Zee
  260. math

    let x and y be real numbers. find the area enclosed by the graph of the following equation: abs(2x)+abs(2y)=1

    asked by Diana
  261. math

    expand and simplifiy each of the following. 2x(5x-7y+3)-8x(2x+3y-1)

    asked by miechelle
  262. math

    2 1/6 - 1.5 answer as a fraction would it be 2/3? also what percent of a meter is 3 centimeters? would it be 33 1/3%

    asked by jill
  263. math


    asked by miechelle
  264. math


    asked by miechelle
  265. math


    asked by miechelle
  266. math

    -2(x+3)^2 -(x-4)^2+3

    asked by miechelle
  267. English

    What is an example of magic that occurs in the fairytale Beauty and the Beast.

    asked by Heather
  268. social studies

    Any powers not specifically granted to the federal goverment in the constitution

    asked by lulu
  269. grade nine math Polynomials

    4s + 3 -s = -6

    asked by peyton
  270. Socials

    What 3 areas in canada can fruit be grown?

    asked by Anonymous
  271. math

    express 55 minutes as a fraction of 1 1/3

    asked by Lori
  272. civics

    can you give me a poem about the lawmaking process

    asked by kristen
  273. help me!

    is -5 a real #? rational #? irrational #? whole #? integer? counting (natural) #?

    asked by sami
  274. strayer

    Assignment #1: Calcor Company

    asked by hasan
  275. Math

    a rectangle has a lenght of 3.5 meters and a width of 1.75 meters. what is the perimeter of the rectangle????? PLEASE HELP!!!!!

    asked by Kenzay
  276. Math

    write the equation in slope intercept form 6x+3y=12 i got y=2x+4 but i don't think i am right please HELP!!!

    asked by kelly
  277. math/science

    describe the symmetries of a water molecule.

    asked by Diana
  278. precalculus

    An experiment begins with 8 cells, and the number of cells triples every week. If the expression a(b)^q computes the number of cells that are present q days after the experiment begins, how much is the value of b?

    asked by Josh
  279. prealgebra

    find the value of n for which 4(n-4)+13=7n+3?

    asked by jamnee
  280. Math

    A ball stuck in a tree at 14ft. You are 5ft. Wats the initial velocity needed to get the ball out the tree?

    asked by Ariel
  281. spelling

    how can you sort the words wish,child, beach, tooth, and theater

    asked by nicole
  282. science

    buoyant force alaways pushes ________ against gravity.

    asked by Roy S


    asked by Anonymous