Questions Asked on
April 26, 2010

  1. Chemistry

    How many grams of K2SO4 would you need to prepare 1500 g of 5.0% K2SO4 (m/m) solution?

    asked by Jack
  2. AP Chemistry

    Which is a stronger base in aqueous solution, IO- or IO3-? Explain.

    asked by Lisa
  3. chemistry

    a 10.0mL vinegar sample was completely neutralized by 22.5mL 0.2M NaOH solution. calculate molarity and % of acetic acid in vinegar. please help

    asked by confused
  4. Organich Chemistry

    What effect will the following factors have on a chromatographic separation 1) too strong an absorbent 2)collection of large elution fractions

    asked by Johnny
  5. chemistry!

    1.) AgCl(s) --> Ag+(aw)+ Cl-(aq) once equilibrium is reached, which statement is accurate? the concentration of Ag+(aq) is greater than the concentration of Cl-(aq) The AgCl(s) mwill be completely consumed The rates of the forward and reverse reactions are

    asked by julianne
  6. Chemistry

    A 100 milliliter sample of 0.100-molar NH4Cl solution was added to 80 milliliters of a 0.200-molar solution of NH3. The value of Kb for ammonia is 1.79 x 10^-5. (a) What is the value of pKb for ammonia? (b) What is the pH of the solution described in the

    asked by Nicole
  7. chemistry

    0.100 M of NaNO2 and 0.050 HNO2. what is the H3O of this solution? set up please.

    asked by david.
  8. algebra honers (math)

    what happened to the peanut who went late night walking?

    asked by jasmine
  9. physics

    When you go out to your car one cold winter morning you discover a 0.54 cm thick layer of ice on the windshield, which has an area of 1.6 m2. If the temperature of the ice is -4.1°C, and its density is 917 kg/m3, find the heat required to melt all the

    asked by Ryan
  10. physics

    Two particles, with identical positive charges and a separation of 2.60 x 10^-2 m, are released from rest. Immediately after the release, particle 1 has an acceleration a1 whose magnitude is 4.60 x 10^3 m/s^2, while particle 2 has an acceleration a 2 whose

    asked by kim
  11. geometry

    the measures of the interior angles of a pentagon are 2x, 6x, 4x-6, 2x-16 and 6x+2. What is the measure of the largest angle

    asked by Dee
  12. Physics

    Tuning a Cello. A cellist tunes the C-string of her instrument to a fundamental frequency of 65.4 Hz. The vibrating portion of the string is 0.625m long and has a mass of 15.0 G. Tension: 160 N What percent increase in tension is needed to increase the

    asked by Michael Moskvich
  13. physiology

    Which of the following statements is TRUE regarding bile? Bile is produced by the gall bladder, and secreted into the duodenum Bile is produced and secreted in response to CCK, which is in turn secreted primarily in response to high acidity of duodenal

    asked by Anna
  14. Physics: merry-go-round question

    A playground merry-go-round of radius 1.92 m has a moment of inertia 411 kg m2 and is rotating at 10.4 rev/min. A child with mass 38.3 kg jumps on the edge of the merry-go-round. Assuming that the boy's initial speed is negligible, what is the new angular

    asked by Tessa
  15. Physics

    What is the strength of the magnetic field a distance of 1 meter from a wire carrying a current of 1 A? B=MoI ------ 2(pi)r Mo=4(pi)x 10^-7 I=1 A How do I know what r is?

    asked by Jill
  16. math

    The laundry bill is $33.80. If paid within 10 days,the company allows a 2.5% discount. Calculate the amount of the bill.

    asked by debbie
  17. chemistry

    A thimbleful of water at 100 deg C has a higher temp than a swimming pool full of water at 20 deg C, but the pool has more thermal energy than the thimble. Explain why this is possbile?

    asked by lala
  18. physics help please!!!

    A bungee jumper with mass 63.5 kg jumps from a high bridge. After reaching his lowest point, he oscillates up and down, hitting a low point eight more times in 40.0 s. He finally comes to rest 28.5 m below the level of the bridge. Calculate the spring

    asked by Anonymous
  19. physics

    A violin string vibrates at 300 Hz when unfingered. At what frequency will it vibrate if it is fingered one-third of the way down from the end? (That is, only two-thirds of the string vibrates as a standing wave.)

    asked by Anonymous
  20. General chemistry

    The first-order reaction, SO2Cl2---> SO2 + Cl2, has a rate constant equal to 2.20 x 10^-5 s^-1 at 593 K. What percentage of the initial amount SO2Cl2 will remain after 6.00 hours?

    asked by hahaha
  21. College Physics

    The rms speed of the molecules in 1.7 g of hydrogen gas is 1700 m/s. What is the total translational kinetic energy of the gas molecules? What is the thermal energy of the gas? 500 J of work are done to compress the gas while, in the same process, 1700 J

    asked by Helly
  22. Chemistry

    Consider the Lewis structure for the major resonance form of PCS–. (Note that carbon is the central atom.) The structure shows: a. A phosphorus-carbon triple bond and a carbon-sulfur single bond. b. A phosphorus-carbon double bond and a carbon-sulfur

    asked by Mary
  23. chemistry

    Write a net equation for the reaction between aqueous solutions of HClO4 and NaH2PO4.

    asked by abc
  24. Chemistry

    A 100 milliliter sample of 0.100-molar NH4Cl solution was added to 80 milliliters of a 0.200-molar solution of NH3. The value of Kb for ammonia is 1.79 x 10^-5. (a) What is the value of pKb for ammonia? (b) What is the pH of the solution described in the

    asked by Nicole
  25. Chemistry

    What is the freezing point of an aqueous solution that boils at 102.1 C?

    asked by Justin
  26. ice skater world problem

    A skater spins with an angular speed of 12.4 rad/s with her arms outstretched. She lowers her arms, decreasing her moment of inertia by a factor of 8.00. Ignoring friction on the skates, what will be the skater's final angular speed?

    asked by Tessa
  27. science

    what is the balanced equation of the titration CH3COOH(aq) + NaOH(aq) → H2O(l) + NaCH3COO(aq)?

    asked by mary
  28. Chemistry

    i need to find the; [Cl-] in PbCl2 solution,[Pb2+] in PbCl2 solution, and the ksp given: PbCl2(s)--> Pb2+(aq)+2Cl-(aq) Temp of solution =20.2 volume of Pbcl2 solution=25.00ml mass of dry AgCl2(g)=0.2543g #moles : AgCl(s)=1.77e-3 Cl(aq)=1.77e-3 Pb2+(aq)=

    asked by Anthony
  29. Grammar (will you check these please)

    Rewrite the sentence or phrase using comparative form of the adverb 1. Approach slowly. = Approach more slowly. 2. Get well. = Get better. 5. Come quickly. = Come more quickly. 6. favorably received = most favorably received 8. far away = farther away 9.

    asked by Tiffany
  30. Chemistry

    What would happen to the color of a dilute solution containing FeCL4 if you added concentrated HCl?

    asked by Christina
  31. Chemistry

    if an aqueous solution of BA(NO3)2 is added to 1.0 L of a solution containing 0.05 mol F- and 0.075 mol SO4 2-, which salt will precipitate first?

    asked by Matt
  32. Chemistry

    What is the concentration, in percent (v/v) of a solution containing 50mL of diethyl ether (C4 H10 O) in a 2.5L of solution?

    asked by Kim
  33. trig

    Two airplanes leave a airport at the same time , one going northwest ( bearing 315degrees) at 422 mph and the other going east at 341 mph. How far are the planes after 4 hours ? Please help have no idea of how to solve?

    asked by stacey graham
  34. Geography

    48. What role has the concept of nationalism played in the life of Russia in the past and present. I'm so confused on this question :/

    asked by y912f
  35. childhood

    Please, I need to know the music for two children's songs, from other cultures(not en the United States) List the song title, the name(s)who wrote the words and the music, the publisher's name and the city, and the copyrigth date. Thank you so much

    asked by Natividad
  36. physics

    A horizontal board weighing 227.0 N is supported at points A and B in the figure below. The plank serves as a platform for a painter, who weighs 553.0 N. Find the maximum distance D, such that the plank will not tip, no matter where the painter stands.

    asked by Michael
  37. spanish

    Choose the correct singular form of “las universidades.” Choose the correct singular form of “los señores.” Choose the correct singular form of “ las mochillas.”

    asked by Brittany
  38. Trigonometry

    1. Find the exact value of the following (Think identity) Cos(2 Arccos(5/13)) 2. Solve the following equation for 0° ≤ Θ < 360° Sec(Θ)= tan(Θ) + cos(Θ)

    asked by Chris
  39. CHEMISTRYYY

    consider the following reaction: Mg(s)+ 2HCl(aq) --> MgCl2 (aq)+H2 (g) What minimum amount of 1.75 M HCl is necessary to produce 27.5 L of H2 at STP?

    asked by Justin
  40. Chemistry -- Please Help!!

    Find the pH of a mixture of .150 M HF(aq) solution and 0.100 M HClO2(aq) HF + H2O F- + H3O+ Ka= 3.5*10^-4 So I will show my attempt below... [HF] [F-] [H3O+] I .150 0 0 C -x +x +x E .15-x x x Ka= [F-][H3O+]/[HF] 3.5*10^-4= x^2/(.150-x) assume x is small so

    asked by Erin
  41. chemistry

    [Cl-] in PbCl2 solution, M? [Pb2+] in PbCl2 solution, M? ksp? #moles : AgCl(s)= Cl(aq) Pb2+(aq)= Temp of solution =20.2 volume of Pbcl2 solution=25.00ml mass of dry AgCl2(g)=0.2543g

    asked by Anthony
  42. math

    Paper towels are sold at the rate of $6.50 per doxen rolls. Figure the cost of 10 dozen rolls of towels with a 3.5% discount and a 6% sales tax.

    asked by FROGG
  43. Trig

    Solve for X: 5sinx+2cos2x-3=0

    asked by =
  44. geometry

    how do you find the hight of a cylinder if you already have the volume and the radius

    asked by Brittani
  45. College chemistry

    5.00 g of octane are burned in a bomb calorimeter containing 2.00 * 10^2 g of water. how many Calories of energy are released if the water temperature increases 6.00 degrees C?

    asked by laney
  46. trig

    A freighter leaves on a course of 120 degrees and travels 515 miles. The ship then turns and goes due east 200 miles. What is the bearing and distance from the port to the ship? I calculated 142 miles for distance but couldn't get bearing. Any help is

    asked by stacey graham
  47. Geometry

    Describe the effect of each change on the perimeter and the area of the given figure. A.The Base and height of the triangle are both doubled B. The radius of the circle with center (0,0) that passes through (5,0) is multiplied by 3/5

    asked by Anonymous
  48. calc

    f(x)=8cos4x What is the derivative? Im doing online homework and i keep getting an incorrect answer. How do you work out this problem correctly? thanks

    asked by Adam
  49. physics

    A pendulum has a period of 0.57 s on Earth. What is its period on Mars, where the acceleration of gravity is about 0.37 that on Earth?

    asked by Anonymous
  50. algebra

    Q 2: If the ticket agency charges ‘p’ dollars per ticket for a concert, it can sell maximum of (40000 – p) tickets. Find: a. A polynomial to represent the total revenue with a ticket price as p dollars. b. How many tickets will be sold for a price of

    asked by Anonymous
  51. College Algebra

    OOPS I got the zeros wrong in the last post...please show work. Find a polynomial of the specified degree that has the given zeros Degree 4: zeros -2,0,2,4

    asked by Ashley
  52. chemistry

    Write a net equation for the reaction between aqueous solutions of NaHSO4 and NaCN.

    asked by adam
  53. physics

    A sound wave in air has a frequency of 262 Hz and travels with a speed of 349 m/s. How far apart are the wave crests (compressions)

    asked by Anonymous
  54. physics

    two small objects, A and B, are fixed in place and separated by 3.00 cm in a vacuum. object A has a charge of +2.00 micro coulomb , and object B has a charge of -2.00 micro coulomb. how many electrons must be removed from A and put onto B to make the

    asked by kim
  55. Geography

    47. Following the breakup of the Soviet Union, what are some of the major problems faced by many of the new countries. Can someone please give me a specific page where I can find information for this question? In my book it's spread around the whole

    asked by y912f
  56. trig

    Solve the triangle ABC if angle A = 76 degrees and a = 12, b = 4

    asked by John
  57. Ancient Greece

    I need help to write a thesis on Ancient Greece Architecture

    asked by Tiana Orta
  58. chemistry

    Write a net equation for the reaction between aqueous solutions of NaC2H3O2 and H3PO4.

    asked by dude
  59. business

    INTRODUCTION TO BUSINESS PROJECT 1. Describe a business “case” – from mass media, Internet, or real life identify a business that does or doesn’t protect the environment. Indicate the source of your research. (two pages) 2. Presuming you have your

    asked by caci
  60. alcoholic beverages

    wine bottles are stored tilted downward so that

    asked by Donna Beech
  61. physiology

    Which of the following statements pertaining to protein digestion and absorption is FALSE? The majority of amino acids and peptides are absorbed in the upper portion of the small intestine. Protein can enter the GI tract via ingestion or via secretion as

    asked by Anna
  62. civics

    I couldn't not find the answer to this in my book. The county form of local government is found in a. about half the states, b. all but two states, c.only 2 states, d. fewer then half of the states. I am guessing that since my book says " over the past

    asked by Tiffany
  63. math

    289 min = 4 hr and 49 min 213 min = 3 hr and 33 min 345 min = 5 hr and 45 min 197 min = 3 hr and 17 min I have to change these minutes on the left to hours and minutes. could you check if I have them correctly. Thank you for your help

    asked by st
  64. math

    Let AB be a diameter of a circular track. Tom starts from point A running clockwise on the track. At the same time Jerry starts from Point B running counterclockwise on the track. Each person runs at a constant speed. They first meet after Tom has run 200

    asked by al
  65. chemistry

    consider the following reaction: Mg(s)+ 2HCl(aq) --> MgCl2 (aq)+H2 (g) What minimum amount of 1.75 M HCl is necessary to produce 27.5 L of H2 at STP?

    asked by Zoe
  66. English

    What would be a good thesis statement on steroids ?

    asked by Raina
  67. Chemistry!

    a)consider the following reaction: Mg(s)+ 2HCl(aq) --> MgCl2 (aq)+H2 (g) What minimum amount of 1.75 M HCl is necessary to produce 27.5 L of H2 at STP? b) What is the freezing point of an aqueous solution that boils at 102.1 C?

    asked by Justin
  68. Calculus

    Question Details: Do the following. (Round your answers to four decimal places.) (a) Estimate the area under the graph of f(x) = 8 + 2x2 from x = -1 to x = 2 using three rectangles and right end-points. R3 = 1 Improve your estimate by using six rectangles.

    asked by Cindy
  69. Chemistry

    A buffer solution is made as followed: i)adding 13.50mL of 0.200mol/L sodium hydroxide to 50.00mL of 0.100mol/L propanoic acid. ii)diluting the resulted buffer into a total volume of 100.00mL Using IRE-C tables (if possible) calculate: a)The pH of the

    asked by Sara
  70. math

    the number feared by phythagoreans since it ties halfway between the only two integers that can be both the perimeter and the area fo the same triangle

    asked by mireya
  71. Economics

    Cell phones have become very popular. At the same time, new technology has made them less expensive to produce. Assuming that the technological advance caused cost curves to shift down-ward at the same time that demand was shifting to the right, draw a

    asked by Kysha
  72. Chemistry

    This is a homeowrk question- Dr. Jekyll and Mr. Hyde is a story of one man with different personalities. Water is the same when looking at its acidic and basic properties. Why can we say that and what parallels of the Stevenson book can be drawn between

    asked by Taylor
  73. math

    Look at the pattern of shaded numbers. use place value to describe how the number change. 501,502,503,504,505,506,507,508,509 is shaded,510,511,512,513,514,515,516,517 is shaded, 518,519,520,521,523,524,525 is shaded,526,527,528,529,530,531,532,533 is

    asked by dylan
  74. physics

    In the figure below, a box of Cheerios (mass mC = 0.8 kg) and a box of Wheaties (mass mW = 2.5 kg) are accelerated across a horizontal surface by a horizontal force applied to the Cheerios box. The magnitude of the frictional force on the Cheerios box is

    asked by bob
  75. Accounting

    When the owner of a company invests his personal funds into the business, would it be entered as a credit to his drawings in the Ledger or would it be entered in a new column under the company's revenue?

    asked by Matt
  76. English

    Write a fully developed paragraph on your favorite season. Out of all the seasons, Spring is by far my favorite. when Spring comes, winter goes and along with it the bitter cold. I do not like the cold. Spring brings clear blue skys and the warm yellow sun

    asked by John
  77. physics

    A 29 g ice cube at 0.0°C is added to 110 g of water in a 62 g iron cup. The cup and the water have an initial temperature of 25°C. (a) Find the equilibrium temperature of the cup and its contents. i don't understand how the iron cup changes the

    asked by steven
  78. Chemistry

    MnO2(s) -> MnO(s) + 1/2O2(g) Delta H1 = +32.5 kcal MnO2(s) + Mn(s) -> 2MnO(s) Delta H2 = -59.0 kcal Calculate Delta H final of MnO2 in KJ. The answer is not as important to me as the explanation. So, can someone please show me how to do this type of a

    asked by Lisa
  79. chemistry

    Write a net equation for the reaction between aqueous solutions of NaNO2 and NaH2PO4.

    asked by larry
  80. Math

    Using factoring by grouping, how would you factor these out. 4t^2+3t-4t-3 3t^2-1t-3t+1

    asked by Lindsey
  81. economics

    Suppose you were offered $2,000 to be delivered in 1 year. Further suppose you had the alternative of putting money into a safe certificate of deposit paying annual interest at 10 percent. Would you pay $1,900 in exchange for $2,000 after 1 year? What is

    asked by Kysha
  82. Physics

    A solid bar of length L = 1.30 m has a mass m1 = 0.893 kg. The bar is fastened by a pivot at one end to a wall which is at an angle è = 33.0 ° with respect to the horizontal. The bar is held horizontal by a vertical cord that is fastened to the bar at a

    asked by Tessa
  83. marketing

    13) Which of the following would probably NOT be in a proposed marketing plan? A. A list of what company resources (costs) would be required. B. Expected sales and profit results. C. A description of the target market and marketing mix. D. A statement of

    asked by Anonymous
  84. US/101

    How do your surroundings affect your reading comprehension?

    asked by Henry
  85. To Writeacher

    Mr. Henry Axhelm Math Period 2, Room 107 I teach five classes a day, Not students, just classes. No sense getting involved With their personal problems. Nothing in their heads worth listening to, anyway. They came here to socialise, To see who's "cute." So

    asked by Sara
  86. chemistry

    Is this statement accurate? the boiling point of the distilled water was 99°C. After five minutes, the temperature still stayed the same; it remained constant. The liquid was becoming a gas. Phase change means there is an energy change. When the

    asked by Jennie
  87. word order

    Which is the correct ordering of adjectives and adverbs in the English language? adverb-adjective-noun adjective-adverb-noun adverb-noun-adjective noun-adjective-adverb

    asked by christopher
  88. word order

    Which is the most logical order for adjectives? size, shape, color color, size, material material, nationality, size age, shape, size my answer A

    asked by christopher
  89. chemistry

    what volume of .5 m sulfuric acid is needed to react completely with 10 mL of 2m potassium hydroxide

    asked by Sadie
  90. college

    cos 23pi/12

    asked by roger
  91. College Algebra

    Find a polynomial of the specified degree that has the given zeros: Degree 4: zeros -1,1,3,5 (I know you would do... (x-(-1)) (x-1) (x-3) (x-5) but I don't know what to do after that. I know when it's a degree of 3 you just use FOIL and leave the (x-5) as

    asked by Ashley
  92. maths

    what are power functions used for? including strengths and limitations for use and EXPLAIN please :)

    asked by sarah
  93. Physcial Science

    The silvered wall of a vacuum bottle takes care of heat flow by what?

    asked by Sue
  94. Physics

    Draw a fully labelled graph of stopping distance on the indpending y,axis vs speed on the independent x,axis.plot the points and sketch your graph use the graph paper.speed 32km,48km,64km,80,km,96km,112km,stopping distance 12m,23m,36m,53m,74m,96m

    asked by Aphiwe
  95. COM/220

    Please post your response to the following: o Identify the thesis statement in the movie “The Origins of AIDS.” o What strategies do the filmmakers use to formulate their argument? o What makes the arguments viable and compelling? 1. Review the

    asked by Liz
  96. physiology

    Which of the following is FALSE regarding carbohydrate digestion and absorption? Carbohydrates are broken into monosachrides prior to absorption The removal of sodium and monosachrides from the intestinal lumen favors water secretion Monosachrides are

    asked by Anna
  97. physics

    A capacitor that powers the flash in a camera is charged using 6.0 V battery. after that capacitor is charged, it is discharged through the flashbulb in just 1.0 microsec. with avg power output of 20 w. whats is the capacitance?

    asked by Neon
  98. physiology

    Which of the following statements regarding pepsin is FALSE? Pepsin is derived from the inactive enzyme pepsinogen Pepsin primarily works to digest fatty acids Pepsinogen secretion is stimulated by increased protein concentration, gastric distension, and

    asked by Anna
  99. chemistry

    Calculate the number of mL you would use to prepare 5.0 L of 0.20 M NaOH from a 5.23 M stock solution.

    asked by laney
  100. physiology

    Which of the following is TRUE regarding the small intestine? The small intestine secretes roughly the same volume of fluid as it absorbs Segmentation is responsible for mixing the chyme and bringing it in contact with the intestinal wall for absorption

    asked by Anna
  101. Wits Univesrity

    If the numerator and denominator of a fraction are each increased by 3, the fraction is equivalent to two-thirds. If the numerator and denominator are each increased by 11, the fraction is equivalent to four-fifths. What is the fraction?

    asked by TL Matabane
  102. Physics

    The combination of an applied force and a frictional force produces a constant total torque of 38.1 Nm on a wheel rotating about a fixed axis. The applied force acts for 7.00 s, during which time, the angular speed of the wheel increases from 2.40 rad/s to

    asked by Tessa
  103. Finance

    8. Ms. Scott purchased a 7-year, 4% annual coupon bond with the YTM of 4%. Ms. Lee invested in a 10-year, 6% annual coupon bond with the YTM of 4%. If interest rates go up by 2 percentage points due to inflation (that is, the YTM becomes 6%), who will have

    asked by Courtney
  104. math

    How would you simplify this rational expression: Can you please show me the steps on how you get the answer thank you. 2y+1 over y-2 times (4-2y)

    asked by Stacey
  105. math #2

    Look at the pattern of shaded numbers. use place value to describe how the number change. 501 is shaded,502,503,504,505,506,507,508,509,510,511,512,513 is shaded,514,515,516,517,518,519,520,521,522,523,524,525 is

    asked by dylan
  106. civics

    I cannot find the answer to this question. In which local areas is the problem of balancing funding and services uasually most severe? a. rural areas, b. suburban areas, c. cities, d counties. I am guess the answer is D because the book states "local

    asked by Tiffany
  107. math

    Use the data in the following table to compare the number of people living in the United States from 1810 through 1900 and the number living in the United States from 1910 through 2000. Use any form of graphical representation to make the comparison and

    asked by crystal
  108. physics

    What is the strength of the magnetic field a distance of 1 meter from a wire carrying a current of 1 A? equation: B=MoI ------ 2(pi)r Mo=4(pi)x 10^-7 I=1 A How do I know what r is?

    asked by Jill
  109. math

    Using factoring by grouping, how would you factor these out. 4t^2+3t-4t-3 3t^2-1t-3t+1 Thank you

    asked by Lindsey
  110. Human Services

    What have been the most significant changes in human services over the past 50 years? How has society’s responsibility to individual needs changed in the last 10 years? What do you think the role of human service workers will be in the future?

    asked by Anesha
  111. Physics again sorry

    A solenoid of 200 loops of wire that cover a length of 0.1 m. The solenoid carries a current of 4.0 A. What is the strength of the magnetic field inside the solenoid? In this instance do I assume that this time r is 200 x 0.1? Or is it still just 0.1 and I

    asked by Jill
  112. Document and Visual Design

    Question 30 Which traditional visual aids combine the advantages of posters and dry-erase boards? Transparencies Posters Dry-erase boards Handouts 32.Which traditional visual aids must be correctly placed upright before you use them? Transparencies

    asked by christopher
  113. chemistry

    In diatomic molecules of elements, the electronegativites of the two atoms are _________, so the electrons are shared ___________.

    asked by claire
  114. college-physics

    In a particular region of space, the magnetic and electric fields have energy densities of 0.2 J/m3 and 4 J/m3 , respectively. Calculate the strength of the magnetic and electric fields in this region.

    asked by Joe
  115. algebra

    Algebra Equation 3x-12=-48

    asked by aly
  116. statistics

    A company manufactures caclculators in batchers of 64 and there is a 5% rate of defects. Find the probability of getting exactly three defects in a batch

    asked by autumn
  117. science

    jason wants to know the mass of air in his soccer ball. to find the mass he should ? He should add the mass or subtract the mass of an inflated ball or empty ball ?

    asked by Ashley
  118. Math

    Factor completely 3x^5-27x^4+21x^3

    asked by Lucky 4
  119. Chemistry

    Cathodic Protection. i need to write a paper on corrosion resistance techniques and CP is one of the more popular methods. Can someone please explain how it works in layman's terms for me?

    asked by Ryan!
  120. Chemistry 143

    Write three thermochemical equation needed to calculate delta H for the following reaction: 2Mg(s) + O2(g) = 2MgO Include delta h values in kJ for each reaction. Please help!! I don't even know were to start!!

    asked by Shana
  121. Chemisty 11

    Why is it important to use the correct salt-sand mix on highways during storms? Help please this is for my Chemisty Project

    asked by Andy
  122. word order

    Where should adjectives be placed?

    asked by christopher
  123. math

    Part 2: Now it’s time to make the guest list! Figure out how many guests you will have at your party, and how much it will cost to feed everybody. You have four grandparents coming. For the adults, you have your parents, your best friend’s parents,

    asked by luigi
  124. math

    Use the data in the following table to compare the number of people living in the United States from 1810 through 1900 and the number living in the United States from 1910 through 2000. Use any form of graphical representation to make the comparison and

    asked by crystal
  125. physics- 11

    explain how it is that you could possibly generate more power then a horse? i don't understand, i know it has to do somethig with potenial energy and kinetic. anyone wanna explain plz?

    asked by Kris
  126. 5th grade

    a group of goats and ducks have a total of 99 heads and legs amoung them there are twice as many ducks as there are goats.how many are there of each?

    asked by jhgd
  127. Math

    A drawing 20 centimeters by 15 centimeters is put into a copy machine at a setting to be shrunk by 75% of its original size. a. What will the new dimensions be? b. Are the ratios of corresponding sides of the drawing and its copy equal? c. Are the drawing

    asked by Tarah
  128. science

    The ashes left after the woods burns have less mass than the wood had . which statement explains what happened to the rest of the wood's mass. a. it was lost as heat b. it is in gases in the air c. it is still in the wood d it is in the ashes, but its

    asked by Ashley
  129. Statistics

    1. For the following exercise, complete the following by using the data sets below that provides the ages of the first seven presidents: a. Find the mean, median, and range for each of the two data sets. b. Find the standard deviation using the rule of

    asked by Mercede
  130. physics

    At what distance from a carbon nucleus is the electric potential 3.8 V? Carbon atoms have 6 electrons in the atomic shell.

    asked by saw
  131. accounting

    what effect would the change in predetermined overhead rate have on the company's inventory values?

    asked by Anonymous
  132. pre-calculus

    Solve this Function: (3x-7)^2 (x^2-9x+18) ---------------------- x (x^2-12x+40) (x^16)

    asked by Treema
  133. math

    -x/9 = 1/16, solve for x

    asked by Jacqui
  134. science

    Describe the bonds that "un-zip" during the replication of dna.

    asked by ben
  135. coding

    Why would a coder want to take special precaution when coding the diagnosis of human immunodeficiency virus or acquired immunodeficiency syndrome?

    asked by jill velasco
  136. fine art

    Ok, if someone saw a fine art painting and they said great picture VS someone looking at a fine art painting and said great painting, what qualifys one a painting and one a picture

    asked by tom again
  137. calculus

    How do you differentiate the maclaurin series for 1/(1-x) twice to find the maclaurin series of 1/(1-x)^3.

    asked by Paul
  138. math

    a squared +b squared=c squared a=90 c=150 What is b?

    asked by Sequoyah
  139. 9th grade

    i would like help understanding graphing quadratic functions? the steps for y=-x2-2x-2

    asked by bailey
  140. engineering

    A compressed high resolution chest xray image requires about 8MB of data. most GP surgeries are connected to the NHS network at a speed of 100Mbps. how long would it take to download a set of 6 images. give your answer to second to 2 decimal places using

    asked by Peter
  141. algebra

    1. On three consecutive passes, a football team gains 5 yards, loss 18, and gain 50 yards. What number represents the total net yardage? The total net yardage is 2. -4

    asked by Jimmy
  142. Math

    Evaluate the triple integral _E (xy)dV where E is a solid tetrahedron with vertices (0,0,0), (4,0,0), (0,1,0), (0,0,4) I just can't seem to find the limits, of x,y and z

    asked by Salman
  143. statistics

    The response of a sample of 1620 people who were asked if the air quality in their community is better or worse than it was 10 years ago are shown below. Find the mean, median, and mode of the data. Better: 323, Worse: 333, Same: 420 Question: Find the

    asked by looking for someone to varify my work please
  144. Chemistry

    Hi Can someone please help me undersand how to get the answer to this question A 15.0 mL solution of 0.050 mol/L AgNO3 was titrated with 0.0250 mol/L NaBr in the cell SCE || titrated solution | Ag(s) Find the cell voltage for 10.0 mL of titrant added. (a)

    asked by James
  145. engineering

    A compressed high resolution chest xray image requires about 8MB of data. most GP surgeries are connected to the NHS network at a speed of 100Mbps. how long would it take to download a set of 6 images. give your answer to second to 2 decimal places using

    asked by Peter
  146. ACCOUNTING

    if a company issued $32,000,000 of 10-year, 12% bonds at an effective interest rate of 13%, receiving cash of $30,237,139 and interest on the bonds is paid semiannually how do you calculate the first semiannual interest payment and the amortization of the

    asked by BOB
  147. Economics

    ) Numerous times in history, the courts have issued consent decrees requiring large companies to break up into smaller competing companies for violating the antitrust laws. The two best known examples are American Telephone and Telegraph (AT&T) in the

    asked by Kysha
  148. math

    Look at the pattern of shaded numbers. use place value to describe how the number change.

    asked by dylan
  149. Physical Science

    The vacuum in the doubled-walled vacuum bottle takes care of heat flow by what?

    asked by Sue
  150. Probability math ?

    If I am rolling a single dice what is the probability of rolling a number that is divisible by 2 and 3? The only number divisible by 2 and 3 is 6. So, would the answer be 1 out 6 or 1/6

    asked by Bart
  151. Science

    I'm trying to determine what fossil fuel contributes the most to acid rain. I said coal because it is thought to be the "dirtiest" fuel with the greatest carbon footprint. Do you think this is correct?

    asked by Rachel
  152. ACCOUNTING

    Gain on redemption of bonds 1,150 Income tax: Applicable to continuing operations Applicable to loss from discontinued operations Applicable to gain from redemption of bonds 247,509 100,000 150 Interest expense 778,266 Interest revenue 2,025 Loss from

    asked by Anonymous
  153. physiology

    Gastrin is a hormone secreted into the __________ by the ___________. Blood; stomach Lumen; stomach Lumen; pancreas Blood; small intestine

    asked by Anna
  154. Intro to Logic

    What type of fallacy is the following statement? Whether we are to live in a future state, as it is the most important question which can possibly be asked, so it is the most intelligible one which can be expressed in language.

    asked by Charlene
  155. english

    how does anna feel about what is happening to her family from the play Thunder on Sycamore Street

    asked by rachel
  156. Chemistry

    g+ 2HCl-->MgCl2+H2 The mass of the HCl is 24.852 g mass of the Mg is .990 g and the mass of the calorimeter is 3.711 g. the change in temperature of the solution was +19 degrees celcius. itd be great if i could just get a basic equation to use or something

    asked by Kevin
  157. To Writeacher-Thanks

    I'd like to thank you for helping me with my poem writeacher, thank you very, very much. :-)

    asked by Sara
  158. College chemistry

    How do you calculate the number of mL you would use to prepare 5.0 L of 0.20 M NaOH from a 5.23 M stock solution.

    asked by laney
  159. english 4

    1. What features make The Awakening a "local color" story?

    asked by itty
  160. Chemistry

    I have a diagram that I have to identify for homework. The structure shows an "R" connected with single bond to carbon(in the middle)-which in turn is connected to OH with single bond.-The carbon in the middle has a double bond with Oxygen on the top. The

    asked by Ian
  161. Math

    4x(x-6)-5x(x-5)=-2 Solve for X

    asked by Hailey
  162. Asymptotes

    f(x) = (3x-7)^2 (x^2-9x+18) / (divided by) x(x^2-12x+40)(x^2-16) all asymptotes and intercepts are asked for

    asked by Treema
  163. legal studies

    need help finding cyberbullying case. please help

    asked by tegs :)
  164. Math

    what must be added to 8/3 to make 2 5/6

    asked by Jess
  165. Trigonometry

    Two points, A and D, are in a horizontal line with the foot of a tower, CB, and on opposite sides. The distance between A and D is 535.4 feet while the angles of elevation of the top B are 12 degrees 46 minutes from A and 18 degrees 38 minutes from D. Let

    asked by Alivia
  166. algebra honors (MATH)

    what happened

    asked by jasmine
  167. Chemistry

    A cup of chicken soup (500.0 g) is heated from 20ºC to 98ºC in a microwave oven that operates at wavelength = 1.55 x 10–2 m. How many moles of photons are absorbed by the soup? Assume that the specific heat capacity of chicken soup is equal to that of

    asked by Mary
  168. PreCalculus

    Hi i don't know how to do this problem solve for n^3 given that log(40 SQRT(3))/log(4n) = log(45)/log(3n) Thanks i'm copletely lost and don't know how to solve

    asked by Kate
  169. Chemistry

    Why does losing two electrons to form a +2 Cation cause the greatest shrinkage in atomic radius of the following? People are telling me that's the answer but I don't understand. a. Gaining one electron to form a 1+ cation b. Losing two electrons to form a

    asked by Mary
  170. Chemistry

    does the mole ratio in this question affect the answer? a 2:1 mixture of O3 and O2 is allowed to effuse through a pinhole in a balloon.after a few seconds, the content of the balloon is analyzed. what will be the mole ratio of the gases in the balloon?

    asked by Tokey
  171. HMS

    What have been the most significant changes in HMS?

    asked by Pam
  172. trig

    finding the equivalent polar equation 2x+3y=6 I got r=6/2cos(theta)-3sin(theta) can anyone check plz

    asked by stacey graham
  173. Physics

    For voltage variation with length, in using a slide meter, the wire resistance varies linearly with length as Rx = resistivity/Area. Since the voltage and resistance are related with ohm's law, Vx= iRx, the current is the same alog all pts. along the slide

    asked by Matt
  174. life and carrers

    can any 1 give me tips on life and carrers im doing ok but i want at least a 90% this period but i have an 80,83 and a 76 please help me.

    asked by bills luver
  175. 6th grade math

    2 ---- t = 9 5

    asked by David
  176. English

    At the Lunch Counter A girl, fifteen perhaps, licking her fingertips, smoothing splotches of butter and salt off her blue pants, cheek muscles rippling. Nathan who is blind sidles to the stool beside her. They talk, he pompously, she making faces he can't

    asked by Sara
  177. statistics

    A company manufactures caclculators in batchers of 64 and there is a 5% rate of defects. Find the probability of getting exactly three defects in a batch

    asked by autumn
  178. probability and statistics

    The annual Salary of an electrical engineer is given in terms of the years of experience by the table below. Find the equation of linear regression for the above data and obtain the expected salary for an engineer with 48 years of experience. Round to the

    asked by Rhanda
  179. probability and statistics

    The annual Salary of an electrical engineer is given in terms of the years of experience by the table below. Find the equation of linear regression for the above data and obtain the expected salary for an engineer with 48 years of experience. Round to the

    asked by Rhanda
  180. physics

    A 5 m by 9 m raft whose mass is 18000 kg floats in fresh water. A 8590 kg load is dropped on the raft. The acceleration of gravity is 9.8 m/s2. With what frequency does the raft bob up and down? Answer in units of Hz.

    asked by eric
  181. vector calculus

    find an equation for the plane that contains the line x = 2t-8, y=3t +3, z= 5- t, and the point (5,4,0)

    asked by Omar
  182. 10th grade

    The addition of which nitrate salt will cause a decrease in the concentration of I-(aq)? Pb(NO3)2 Ca(No3)2 LiNo3 KNo3

    asked by juliannme
  183. medical billing and coding

    What is the importance of a fee schedule and the factor's it's based on?

    asked by jill velasco
  184. Trigonometry

    What is the exact value of the cos of 23pi/12? (Twenty-three pi over 12, which is = to 345 degrees.) Thank you, Roger

    asked by Please help.
  185. chemistry

    Write a net equation for the reaction between aqueous solutions of NH4Cl and Na2SO3.

    asked by bill
  186. PreCalculus

    question skipped again please post response in this one so that way I don't have to search for old posts h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 7 2 2 4 7 5 4 8

    asked by Kate
  187. English

    Thank you very much for your last corrections. Here are some more sentences on Virginia Woolf's biography. I really hope you can check them. 1) Virginia’s childhood was deeply affected by the death of her mother and the presence of an aggressive and

    asked by Franco
  188. English

    Unscramble these words: lytnme awhei diarn

    asked by Anita
  189. algebra

    20 years from now a person will be 3 times as old as he is now how old is he now

    asked by Anonymous
  190. physiology

    Long reflexes regulating GI function differ from short reflexes in which of the following ways? Short reflexes involve the local GI nerve plexus The effectors of short reflexes are GI tract smooth muscle and glands Long reflexes involve autonomic efferent

    asked by Anna
  191. chemistry

    A 10% acid solution is to be mixed with a 50% acid solution in order to get 120 ounces of 20% acid solution. How many ounces of the 10% solution and 50% solution should be mixed?

    asked by Meliss
  192. physiology

    Is the following statement True or False, and Why? The presence of a hyperosmotic solution in the duodenum will stimulate gastric emptying. True; this helps to speed up the absorption process True; the hyperosmotic solution draws contents in from the

    asked by Anna
  193. Apchemistry

    Thank you for your help Why is solid copper (I) nitrate a poor conductor? I know that CuNO3 is an ionic solid, so maybe (please check me on this) the electrons in CuNO3 are exchanged in the formation of electrostatic attractions found within ionic solids,

    asked by Kiki
  194. Chemistry

    How do the qualities of acids and bases shape the natural world we live in? I really apppreciate, in advance, any help you can give me-I'm homeschooled and just trying to understand this better. Thank you-

    asked by Sara
  195. Emglish

    Thank you very much for your last corrections. Can you pleasecheck these sentences , too? 1) She thinks of the books which have been given to her and inscribed by the poets themselves. 2) Though the furniture of their winter house (or second-holiday home?)

    asked by Franco
  196. math

    Dr. needs 500 needles priced at $2.60 per hundred. If she pays within 10 days she receives a 2% discount and sales tax is 5.5%. What amount would you pay with the discount? I did this. $12.60*5= $13.00 $13.00*2%=0.26 $13.00-.26=$12.74 $12.74*5.5%=0.7007

    asked by debbie
  197. Chemistry

    Hello, I'm wondering what the difference is in method when it comes to finding the pH of a weak acid versus finding the pH of a strong acid? Thanks!

    asked by Rob
  198. maths

    area of a parallelogram of 30 an d 48 cm

    asked by dali
  199. Math

    Could someone please explain this problem to me. I need to factor and check by multiplying. 7x^9y^7+35x^7y^6+35xy= Here is what I got but I don't think that it is right. 7x^9y^7+35x^7y^6+35xy= 7xy(x^8y^6+5x^6y^5+5) Is this correct? Thanks.

    asked by B.B.
  200. Math

    7x+5y=175 x+y=23

    asked by Adrianne
  201. gen105

    dq question2

    asked by cleopatra
  202. reading

    what does wheither wilt thou wander, wayfare mean?

    asked by bills luver
  203. geometry

    what is the lateral area of a right cylinder with a radius of 4in and height of 9in?

    asked by tierra
  204. Physics

    What is the proof for voltage versus length in the equation V=Cx?

    asked by Matt
  205. human growth and developmnet

    What is PHONEME RECOGNITION-RECOGNIZING LANGUAGE SOUNDS ?THANKS:)))

    asked by vedrana
  206. Math

    Can I reduce these fractions before I multiply them together? because when i multiply them I get some huge numbers. thank you 11/52 times 39/80 21/25 times 15/28 32/121 times 33/144 16/105 times 155/93

    asked by Justine
  207. math

    The hypotenuse of a 30- 60- 90 triangle has length 17. What is the length of the side opposite the 60 angle?

    asked by mikemike
  208. APCHemistry

    Hi these are the posts from earlier---i just had a quetsion about your response: ""Apchemistry - DrBob222, Monday, April 26, 2010 at 7:10pm Your thinking is ok. All ionic solids, although composed of ions, are locked into place by the crystal lattice

    asked by Kiki
  209. Loneliness and Aloneness

    What is the difference between being alone and feeling lonely?

    asked by Anonymous
  210. business

    Return on assets represents the total return on the net investment in the firm. True or False?

    asked by Kesha
  211. Business

    The higher the inventory turnover ratio, the more inefficient the firm is in managing its inventory. True or False?

    asked by Kesha
  212. Math

    each face of a cube can be painted either yellow or red. how many different ways can you paint the cube?

    asked by Carol
  213. math

    ms. sue how did you come up with your answer? I did this. 33.80 and 2.5% 33.80 times .025 = 0.845. I don't understand what the total amt of bill is?

    asked by debbie
  214. math

    if the life insurance is 64000 dollars.. how many 21.82 dollar payments a month could you make to pay it off?

    asked by Anonymous
  215. accounting

    debit and credit journal entries- Sold merchandise with retail value of $6,000 and a cost of $4,080 to Chang Corp., invoice dated Jan. 13.

    asked by laura
  216. Math

    Barter question: name will give for a 1 marble 2 paper clips m 2 marker 1 pencil r 5 notepads 4 markers l 1 pencil 5 paper clips g 3 erasers 5 notepads Question how does a get erasers?

    asked by Simon
  217. ms. sue

    Thank You

    asked by debbie
  218. Document and visual design

    Which traditional visual aids usually require you to dim the lights in the room? Handouts Dry-erase boards Transparencies Slides my answer slides

    asked by christopher
  219. Document and visual design

    When are visuals appropriate for a document?

    asked by christopher
  220. Document and visual design

    Question 33 5 points Save Which traditional visual aids must be placed in proper order before you use them? Transparencies Handouts Slides Dry-erase boards MY ANSWER slides

    asked by christopher
  221. Document and visual design

    Why is it important to have a clearly designed document? What does a poorly designed document do to your reader?

    asked by christopher
  222. English

    Thank you very uch for your corrections. Can you possibly hae a look at the following sentences on V.Woolf's Mrs Dalloway? 1) The “action” of Mrs. Dalloway is limited to the events of a single ordinary day (or to the events taken place on a single

    asked by Franco
  223. college

    The annual Salary of an electrical engineer is given in terms of the years of experience by the table below. Find the equation of linear regression for the above data and obtain the expected salary for an engineer with 48 years of experience. Round to the

    asked by Rhanda
  224. English

    I forgot to include the following statements. I really hope you can correct them, too. 1) They both have a weak personality and depend upon their partners for stability and protection. 2) Though Clarissa attempts to gain freedom and independence, she is

    asked by Franco
  225. English Launguage Arts 6th feet

    In this sentence what is the prepositional phrase: Kelly asked about you Thanks, M.P.L

    asked by M.P.L
  226. social

    how not to get stressed on ss hmwk

    asked by mr.skittles luver
  227. Precalculus

    please still stuck h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 7 2 3 2 6 8 8 0

    asked by Kate
  228. math

    wat is the diameter in terms of pi when the radius is 56?

    asked by bills luver
  229. Algebra 2

    How do I expand these powers? (a - b/2)^4 (2- m/2)^5

    asked by Ana
  230. College Alg.

    Multiply. (-4n)^2 (2n^2)^3= ^=to the power of

    asked by Lucky 4
  231. word order

    Where should adverbs be placed?

    asked by christopher
  232. math

    a room has a floor area of 1,025 ft^2 and a 10 ft high ceiling. the housing code requires at least 200 ft^3 per person. what is the maxium number of ppl allowed in the room?

    asked by nicole
  233. word order

    What do adverbs describe when they are placed before the noun? the gerund the verb the noun the adjective MY ANSWER the adjective

    asked by christopher
  234. Math

    Hi. If you don't have a circumference in the question, how do you find the radius!?

    asked by Cara
  235. college physics

    The energy difference between states A and B is twice the energy difference between states B and C (C > B > A). In a transition (quantum jump) from C to B, an electron emits a photon of wavelength 300 nm. What is the wavelength emitted when the photon

    asked by Kelly
  236. college physics

    A typical wavelength of infrared radiation emitted by your body is 25 µm (2.5 multiplied by 10-5 m). What is the energy per photon of such radiation?

    asked by Josh
  237. American Government

    Whenever Congress has a perceived need for ongoing control of an economic activity, what does it tend to create?

    asked by Anonymous
  238. math

    Determine the validity of the next arguments by using Euler circles, then translate the statements into logical statements using basic connectives, and using truth tables, determine the validity of the arguments. Compare your answers. (a)No A is B (b) All

    asked by Deb
  239. fine art

    what is the diference between a fine art painting and a picture

    asked by tom
  240. Math

    Truth tables are related to Euler circles. Arguments in the form of Euler circles can be translated into statements using the basic connectives and the negation as follows: Let p be gthe object belongs to set Ah. Let q be gthe object belongs to set

    asked by Deb
  241. math, trig

    What is the exact value of the cos of 23pi/12? (Twenty-three pi over 12, which is = to 345 degrees.) Thank you

    asked by roger
  242. health

    list the movable joint in the correct column. ball-and-socket= Shoulder, Hip Gliding= backbone, neck, forearm Hinge= knee, elbow,toe, finger Pivot= Ankle, wrist

    asked by Tiffany
  243. MATH

    Use multiplying by one to find an expression equivalent to 12/11 with a denominator of 77z. I have an entire worksheet of problems like this. Could someone please explain to me how to complete this type of problem.

    asked by Tim
  244. science

    Describe the bonds that "un-zip" during the replication of dna.

    asked by ben
  245. MATH

    Analyze this function : y(x)= 9-8x-x^2

    asked by Overdue
  246. algebra 2

    what is log x=3.2

    asked by tarter
  247. volume

    Estimate the volume of a box that is 7 cm long on each side.

    asked by kalae
  248. chemistry

    how do calculate the weight of gasoline lost from a 40,000L gasoline tank at 50% saturation, and 20mm hg.

    asked by kassie
  249. chemistry; acids and bases

    Since Ka x Kb = Kw, is the conjugate base of a weak acid a weak base or a strong base?

    asked by Diem
  250. medical billing and coding

    explain how evaluation and management codes are grouped?

    asked by jill velasco
  251. SCIENCE

    how to make electrohemical cell with iron and aluminium foil? I should make that at home and at school teacher will give me acid or something to put metals in that. And i should know how to conect that with wires and make the bulb light - so i should

    asked by ANGELA
  252. maths

    what are some assumptions that have to be made when predicting population?

    asked by sarah
  253. economics

    what is meant by utility and how does it relate to purposeful behavior.

    asked by Susan
  254. Chemistry

    Mg+ 2HCl-->MgCl2+H2 The mass of the HCl is 24.852 g mass of the Mg is .990 g and the mass of the calorimeter is 3.711 g. How do I calculate the heat of the reaction of all this please?

    asked by Kevin
  255. chemistry

    Write a net equation for the reaction between aqueous solutions of HBr and NH3.

    asked by jeff
  256. 7th grade

    How can hardware,software,and the user of a computer work together to complete a task?

    asked by Anonymous
  257. chemistry

    Write a net equation for the reaction between aqueous solutions of Na2HPO4 and H2CO3.

    asked by brad
  258. Physics

    In using a slide wire potentiometer, show a proof for the equation Vx = Cx where V = the voltage drop, and C = the position along the slide wire potentiometer.

    asked by Matt
  259. algebra

    Can someone tell me where I can get help to solve this or how to solve this? √(c^2 – d^2) * (c^2 – d^2) Thank you.

    asked by homework
  260. adult education

    HOW DID THE MEDIA INFLUENCE THE PUBLIC DURING THE CIVIL RIGHTS AREA IN AMERICA.

    asked by Anonymous
  261. Maths

    Evaluate the triple integral _E (xy)dV where E is a solid tetrahedron with vertices (0,0,0), (4,0,0), (0,1,0), (0,0,4) I just can't seem to find the limits, of x,y and z

    asked by Salman
  262. Calculus

    Evaluate the triple integral _E (xy)dV where E is a solid tetrahedron with vertices (0,0,0), (4,0,0), (0,1,0), (0,0,4) I just can't seem to find the limits, of x,y and z

    asked by Salman
  263. History (social oppression)

    I'm having trouble understanding what social oppression is. Can it be applied to poor hating on other poors?

    asked by Patrick
  264. math

    let f be a polynomial such that f(x^2+1)=x^4+4x^2. determine f(x^2-1)

    asked by sarah
  265. COM 220

    In "A Nation Apart" what is the thesis statement in the article? what strategies does the author use to formulate his argument? and what makes the argument viable and compelling?

    asked by Heather Kennedy
  266. college

    The vacuum in the doubled-walled vacuum bottle takes care of heat flow by what?

    asked by Sue
  267. Stonewall

    The heaviest human of all times weighed 486 kg. This is 12 kg less than 6 times Juan's weight. How much does Juan weigh?

    asked by Lisa
  268. English

    Hi there, I am currently in the progress of writing a essay for my sister's keeper but I am having trouble creating a thesis statement. The idea I want to focus on is about family and the importance of balance and how one member's difficulties can affect

    asked by Sarah
  269. COM/220

    This particular DQ is due on Day 3. Please post your response to the following: o How do the writers of this documentary “The Origins of AIDS” organize information to build their argument? o Do they include any counter arguments? Why or why not? o What

    asked by Liz
  270. physiology

    Fatty acids from the GI lumen are moved across the epithelium via _________, and they are absorbed into the ________. a.Diffusion; mucosal capillaries b.Diffusion; lacteals c. Mediated transport; hepatic portal capillaries or d.Active transport; hepatic

    asked by Jerica
  271. Bias, Rhhetorical Devices and Argumnetation

    I need help with this assignment: A time for choosing by Ronald Reagan (1964)

    asked by Sharon
  272. Science (Organic chem)

    NO and NO2 are the nitrogen oxide gases being produced. Give the balance equation for both.

    asked by Dana
  273. physics

    With what speed must a muon travel so that its correct (relativistic) momentum is 8.0 percent greater than the value that would be computed nonrelativistically? Give your answer as a ratio to the speed of light

    asked by Dave
  274. science

    after spraying crops with ddt for several years, farmers found that populations of insect pests rebounded. one reason was that insects had developed resistance to the insecticide. suggest another reason, based on what you know about populations, pyramids,

    asked by joe
  275. Math

    At the National Zoo, 12 out of 25 exhibits contain a mammal. Assuming that there are 375 exhibits, how many many are mammals? A) 11 B) 32 C) 132 D) 300 Here is what I am doing: 12/25 = x/375 375 * (12/25) = (x/375) * 375 180 = x But 180 isn't an option

    asked by David
  276. maths

    if M = 3 x 6 ^ (-t) find the half life of M

    asked by Luke
  277. 1st grade

    Sam sees a figure The figure has one face The figure is curved What figure(shape) does Sam see?

    asked by robert
  278. science

    what is the pH of the following 1. [H+] = 10 negative 12th power M 2. [H+] = 10 negative 2nd power M 3. [H+] = 10 negative 7th power M

    asked by jessica