Questions Asked on
May 10, 2010

  1. Physics

    An archer applies an average force of 200 N to draw the bow string back 1.3 m. a)How much work did the archer do on the string? b)How much mechanical potential energy is stored in the stretched bow? c)How much kinetic energy does the arrow have before it

    asked by Adrionna
  2. chemistry

    How much heat is evolved when 1258 g of water condenses to a liquid at 100.°C?

    asked by samantha
  3. Calculus

    How many critical points does the function f(x) = [(x-2)^5][(x+3)^4] have? A. 1 B. 2 C. 3 D. 5 E. 9 --- Ok, these are my thoughts on this question: My impulse was to do derivative of the function. However, if I'm going to set the function equal to zero to

    asked by Nikki
  4. statistics

    Assume the body temperatures of healthy adults are normally distributed with a mean of 98.20 °F and a standard deviation of 0.62 °F (based on data from the University of Maryland researchers). a. (0.1 point) If you have a body temperature of 99.00 °F,

    asked by Nathan
  5. chemistry

    The density of 3M solution of NaCl is 1.25 g/mL. Calculate the molality of the soution.

    asked by varsha
  6. Chemisrty

    Calculate the moles of aluminum ions present in 250.0 g aluminum oxide

    asked by Sam
  7. chemistry

    A 0.010 M solution of a weak monoprotic acid is 3.0% dissociated. What is the equilibrium constant, Ka, for this acid?

    asked by darali
  8. math

    if two dice are rolled 360 times, approximately how many times should you expect a sum of 7

    asked by tk
  9. quimistry

    How many grams of chromium are needed to react with an excess of CuSo4 tp produce 27 g Cu?

    asked by dmaris
  10. CHEMISTRY

    Ammonia and gaseious hydrogen chloride combine to form ammonium chloride. NH3(g) + HCl(g) = NH4Cl(s) (balanced) If 4.21 L of NH3(g) at 27 C and 1.02 atm is combined with 5.35 L of HCl at 26 C and 0.998 atm, what mass of NH4Cl will be produced? Which gas is

    asked by dkfdsfdsf
  11. CHEMISTRY!!

    Which of the following is NOT a postulate of the kinetic molecular theory? A; the average kinetic energy of the particles is directly proportional to the absolute temp. B;the forces of attraction and repulsion between the particles are insignificant C:the

    asked by Andy
  12. chemistry

    Can you please check if I came up with the right answer for this please. A 4.30L container had 55.10 moles of N2O4 added to it. When equilibrium was established the concentration of N2O4 was found to be 1.69M.What is the Kc for the following reaction?

    asked by Andy
  13. World History

    how did the scientific and technological revolutions of the 1920s help set the stage for transportation in the United States today?

    asked by ARTHUR
  14. Physics

    How many electrons must be removed from an object to leave it with a charge of 2.0 x 10 exp-10C? This is a small though not neglible static charge.

    asked by Nina
  15. CHEMISTRY!!/science

    A mixture of CO2 and an unknown gas was allowed to effuse from a container. The carbon dioxide took 1.25 times longer than the unknown gas to escape.Which of the following gases could the unknown one be Choices A: Cl2 B: CO C: HCl D: H2 E: SO2 I am going B

    asked by ANDY
  16. Chemistry

    Calculate the moles of aluminum ions present in 250.0 g aluminum oxide

    asked by Sam
  17. Chemistry

    What is the net ionic equation for the ionization of HClO3 in water?

    asked by Doug
  18. Physics

    How many excess electrons does an object with a total charge of -1.0 x 10exp-9C have on it? This is approximately the amount of charge involved in commonly encountered static electricity.

    asked by Nina
  19. Data Management

    A lottery has one $1000000 prize, two $50000 prizes, ten $1000 prizes, and two hundred $50 prizes. There are to be one milllion tickets sold. How much pofit does the lotto company make if they sell the tickets for $2.00 each?

    asked by Madmazel
  20. chemistry

    The density of 3M solution of NaCl is 1.25 g/mL. Calculate the molality of the solution.

    asked by varsha
  21. Chemistry

    What is the equilibrium constant for the reaction: HCOOH(aq)+ OH (aq) HCOO(aq)+ H2O(l) Ka= 1.7 * 10^-4 Kb for the conjugate base= 4.9 * 10^-11 Thank you!

    asked by Molly
  22. history

    the political system in which the citizens are likely to have the most immediate influence on their government is a? 1)direct democracy 2)representative democracy 3)aristocracy 4)constitutional monarchy 5)dictatorship

    asked by kayci
  23. World History

    What weaknesses made the League of Nations an ineffective force for peace in the 1920s and 1930s?

    asked by Jameisha
  24. Greatest Common factors

    I don't know these answers. Can you help me? Greatest common factor in 1.6y^2-9y+18. 2.4x^2y-7xy 3. 30a^3b-40ab^3 4. factor out greatest common factor in 4x^2-12x+20 5. x^4y-6x^3y-6x^2y 4 and 5 are factoring out the greatest common and 1-4 is finding the

    asked by Ales1
  25. Intermediate Algebra

    How would I figure out this math problem? (a video game was $49.95. The price dropped to $45.50. what was the percent of decrease.)

    asked by Andy
  26. algebra

    How many sets are subsets of set B? List the subsets of set B. Which are proper subsets? B= {1,2,3,4,5} would it be 5 subsets (1 for each number? the subsets would be 1,2,3,4,5 not sure about a proper subset

    asked by Kristi
  27. Data Management Probability

    A toy manufacturing company that 5% of there toys are defective. A quality control person checks 50 toys. a) What is the probability that there will be exactly two defective toys found? b) How many defective toys would quality control expect to find?

    asked by Almaasak
  28. biology

    a) Explain why the knee-jerk reflex still functions in a person with a severed spinal cord. b) Why is there no sensation of the stimulus?

    asked by CL
  29. Math

    A rectangle is 3 times as long as it is wide and has the same perimeter as a square whose are is 4 sp.ft. larger than that of the rectangle. What are the dimensions of both the rectangle and the square?

    asked by Gabby
  30. Business statistics

    1(a)Let Y have a binomial distribution with parameters n and p. We reject Ho: p=1/2 and accept H1: p>1/2 if Y>=c. Find n and c such that the probability of a Type I error is .10, and P(reject Ho/p=2/3)=.95. (b)What is the probability of a Type II error?

    asked by John
  31. Algebra

    Write the expression 3X^12+20X^6+6 in quadratic form.???

    asked by None ya
  32. Social Studies

    I'm doing an ABC book for Medieval words, and I need to do one for the letter Z. I found the word Zupan, but I'm not entirely sure on the definition, and how I can illustrate it. So can anyone give me some help on the word Zupan, or suggest any other

    asked by Lea
  33. science

    compare and contrast a latent virus and an active virus. Give an example of each.

    asked by mrs.bieber
  34. CHEMISTRY!!

    Can someone check my answer please: Magnesium metal(0.100 mol)and a volume of aqueous HCL that contains 0.500 mol are combined to react to completion. how many litres of hydrogen gas (measured at STP) are produced choices: 4.42 11.1 22.7 2.27 5.53 I like

    asked by Andy
  35. Physics

    calculate the force between two identical charges of 1.0 x 10 exp -9 C separated by 1.0 Cm

    asked by Nina
  36. science

    For the following reaction if the reaction temperature was increased would the equilibrium shift to the right or the left,not shift at all,or you cant answer the question because Keq is not given? 2SO3(g)2SO2(g)+O2(g)..(deltaH degrees =198kj) Why???

    asked by Andy
  37. investing

    Discount Sales sells some used store fixtures. The acquisition cost of the fixtures is $12,500, the accumulated depreciation on these fixtures is $9,750 at the time of sale. The fixtures are sold for $4,500. The value of this transaction in the Investing

    asked by mb
  38. CHEMISTRY

    At what temperature does a 16.3 g of nitrogen gas have a pressure of 1.25 atm in a 25.0-L tank? Plz show me step by step how to do this, with using pressure as atm.

    asked by ~anonymous
  39. Marketing

    9. The annual planning at Century Office Systems, Inc. had been arduous but produced a number of important marketing initiatives for the next year. Most notably, company executives had decided to restructure its product-marketing team into two separate

    asked by BABI
  40. statistics

    Using the 68-95-99.7rule. Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantities: a. percentage of scores less than 100 b. relative frequency of

    asked by Christine
  41. Physics

    (a) calculate the energy in joules put out by a 9.0 V calculator battery that moves 3.0 C of charge through a handheld calculator after 1 hr of operation. (b) calculate the energy put out by a 12.0 V car battery that moves 1000 C of charge (as it may when

    asked by Nina
  42. chemistry

    How much heat is evolved when 269 g of ammonia gas condenses to a liquid at its boiling point?

    asked by brett
  43. Grammar

    Jesus Christ died to save the world. Are the verbs died and save because it shows the actions that he did or just one of them?

    asked by Carlos
  44. statistics

    Which of the following statements are correct? a. a normal distribution is any distribution that is not unusual b. the graph of a normal distribution is bell-shaped c. if a population has a normal distribution, the mean and the median are not equal d. the

    asked by Christine
  45. english

    Do your homework before applying for any job. if you rewrote the sentence beginning with (Be sure that you) the next words would be? 1)got done your homework 2)got your homework done 3)had done your homework 4)did your homework 5)have done your homework

    asked by Anonymous
  46. Geometry

    Please Someone Help!!! Find the coordinates of a point on the unit circle corresponding to a 36 degree angle rotation. Find the coordinates of a point on the unit circle corresponding to a 115 degree angle of rotation. Find all angles between 0 degrees and

    asked by MEGGG!!!
  47. Accounting

    Physicians practicing in Eastern University’s hospital have the following compensation agreement. Each doctor bills the patient (or Blue Cross Blue Shield) for his or her services. The doctor pays for all direct expenses incurred in the clinic, including

    asked by Tony
  48. chemistry

    A 4.30 g nugget of pure gold absorbed 293 J of heat. The initial temperature was 23.0°C. What was the final temperature?

    asked by brett
  49. Algebra1

    15m^4^5-3mn+9m^2n^3

    asked by Brandie
  50. Intro to visual business

    What specific visual film techniques do you see utilized in contemporary television?

    asked by Justin
  51. science- chemistry

    what is the rate of reaction, if rate of consumption of iodide is 2.130x10^-5? 5I-(aq)+IO3-(aq)+6H+(aq) 3I2(aq)+3H2O(l)

    asked by pookie
  52. math

    A total of 129 players entered a single elimination handball tournament. In the first round of play, the top seeded player received a bye and the remaining 128 players played in 64 matches. Thus 65 players entered the second round of play. How many matches

    asked by austin
  53. science/chemistry

    Qc for the following chemical reaction 3CIO2-(aq)2CIO3-(aq)+Cl-(aq) Choices A:3[CIO2-]/2[CIO3-][Cl} B:2[CIO3-][Cl]/3[CIO2-] C:[CIO2-]^3/[CIO3-]^2[Cl-] D:[CIO3-]^2[Cl-]/[CIO2-]^3 I like B: what would you go for?? thanks all

    asked by Stuck
  54. Physics

    Calculate how far and apart two indentical charges of 1.0 C must be in order for the Coulomb force between them be less than 500 N

    asked by Nina
  55. Chemistry

    A steel container of oxygen has a volume of 20.0 L at 22 C @35 atm. What is the volume @ STP? How many mol of oxygen are in the container?

    asked by Jane Smith
  56. Trig

    A swimmer heads perpendicular to a 2-miles-per-hour current. His speed in still water is 1.8 miles per hour. Find the actual speed of the swimmer and his direction angle, 0 (the zero right her is supposed to have a line through the middle of it, I think it

    asked by MEGGG!!!
  57. CHEMISTRY

    Dr Bob Can you confirm please Given a cylinder of fixed volume filled with one mole of Ar gas,which of the following is CORRECT? (assume that all gases obey the ideal gas laws) A: if the cylinder temp. is changed from 20 to 25 deg.C the pressure will

    asked by Andy
  58. chemistry

    According to the experiments concerned with photoelectric effect, what would inrease the kinetic energy of electron ejected from a metal surface? Decreasing the wavelength of the light, drecreasing the frequency of the light or increasing the number of

    asked by olexandra
  59. anatomy

    4. What provides the shortest-term mechanism for preventing acid-base imbalances in the body? The longest-term mechanism? Describe each in detail.

    asked by monica
  60. English-plese hepl

    I am reliable dishwasher seeking for a position of dishwasher where I can use my previous dishwashing experience for a leading restaurant. Is correct sentense??

    asked by raj
  61. statistics

    Bellevue Hospital in New York City uses 100.6 °F as the lowest temperature considered to indicate a fever. a. (0.1 point) What percentage of normal and healthy adults would be considered to have a fever? : b. (0.1 point) Does this percentage suggest that

    asked by Annie
  62. math

    a triangle has three internal angles. one angle measures 37 degrees another one measures 67 degrees. how many degrees does the third angle measure? 1) 28 2) 34 3) 76 4) 256 5) not anought information is given

    asked by michael
  63. chemistry

    How much heat is evolved when 269 g of ammonia gas condenses to a liquid at its boiling point?

    asked by samantha
  64. math

    an appliance salesman receives a commission of 15% of all sales. last week he sold a refrigerator priced at $755,a dishwasher priced at $450, and a range priced at $535. what is the total commission he earned for the week? 1)$26.10 2)$104.40 3)$116.00

    asked by morgan
  65. math

    if patrick can paint a wall in 40 minutes, what part of it can he paint in 1/2 hour? 1/4 1/2 2/3 3/4 4/5

    asked by robyne
  66. math

    a newborn infant usually tripples its birthday weight by its first birthday. baby carter weighed 28 pounds on his first birthday. if this were tripple his birth weight (b), which equation below could be used to determine his birth weight? 1)b/3=28 2)b-3=28

    asked by Anonymous
  67. math

    what is the sum of 3a + b + a + b? 1)3a+2b 2)4a+2b 3)a3+b2 4)4a + b 5)6ab

    asked by Anonymous
  68. English

    i need a palindrome for: old cats who are forgetful (2 words), a hippie with no name would say ( 3 words), Bright male goats ( 2 words) and Shiny rodents ( 2 words)

    asked by Kiaha
  69. geology

    What are the major differences between topographic and geologic maps? • Refer to Figure 9.21 on p. 264 of the text. How would you determine the slope of the land surface in this figure? If you consider building a house in a location in this area, what is

    asked by Anonymous
  70. chemistry

    when you hold a hydrogen filled pipet bulb horizontally with its mouth about 1 cm from a falme while gently squeezing what would you observe? a. the flame goes out b. a gentle pop and the flame may have been blown out c. the flame got bigger d. nothing

    asked by grace
  71. statistics

    A usu today survey foudn that of the gun owners surveyed 275 favor sticter gun laws. The survey involved 500 gun owners. Test the claim that a mojority( more than 50%) of gun owners favor stricter fun laws. use .05 significane level

    asked by ds
  72. Reimbursement Methodologies

    Could someone please check my answers for me..Thanks 1. Mary needs Medicaid coverage. Where should she start looking for information to determine her eligibility? A. The local hospital social services department B. Her employer C. The federal government

    asked by Please check my answers
  73. Grammar

    Adam and eve lived in the garden of Eden. What are the verbs in this phrase.

    asked by Carlos
  74. chemistry

    what is observeed when carbon dioxide was bubbled into bromothymol blue? a. the color of the solution changed from greenish to yellow color. b. the solution turned cloudy c. the color of the solution changed from yellow to colorless d. a precipitate formed

    asked by grace
  75. Chemistry

    Hydrocyanic acid has a Ka of 4.0 X 10-10. What is the percent of ionization of a 1.0 molar solution? my answer is 0.004% is this correct? a) 0.004% b) 0.0020% c) 0.0004% d) 0.02%

    asked by Centhia
  76. geography

    I have to put indicators of measuring development in countries in order of importance they are :- literacy rates number of people per doctor, gross national product, % of population access to clean water, population density, % people employed in

    asked by sue
  77. Algebra

    "Do the two inequalities have the same solutions? Wriet yes or no. -5x > 0 x > 0 Solve each inequality and ch eck your solution. 9x > 81 help please? -thanks

    asked by Dean
  78. Alegebra

    0.000042/0.0084=2 Scientific notation. DIvide. My answer is 2 is this right.

    asked by Keaton
  79. statistics

    Using the 68-95-99.7 rule: Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantities: Suggest you make a drawing and label first… a. (0.1 point)

    asked by Rose
  80. math

    together two designers have to make 31 dresses in a month. janet has to sew 5 more dresses than her partner, chris. how many dresses does janet have to make? 13 18 23 26 36

    asked by Anonymous
  81. chemistry

    Write the equilibrium expression Qc for the following: 3CIO2-(aq)2CIO3-(aq)+Cl-(aq) Choices: 3[CIO2-]/2[CIO3-][Cl-] 2[CIO3-][Cl-]/3[CIO2-] [CIO2-]^3/[CIO3-]^2[Cl-] [CIO3-]^2[Cl-]/[CIO2-]^3 I don't even know where to start with this one can you help please.

    asked by Andy
  82. math

    working three days per week, a clerk earns $255 per week. at the same rate of pay, which expression below represents what she would earn if she worked 5 days per week? (let x represent full time earnings) 1)x=3/5(255) 2)x=5/3(255) 3)x=3(255) 4)x=5(255)

    asked by robyne
  83. geography

    Germany and France are located next to eachother. What geographic advantages do they have in common that would help their economies prosper? what geographic features might create differences in their economies?

    asked by melissa
  84. Micro economics

    1. prove mathematically that MC does not depend on TFC 2. if the average cost of producing 8 units of output in $80 and that of prodcuing 9 units of output is $90, find the marginal cost of the 9th unit of output and the total cost of the last unit

    asked by Hiwot
  85. chemistry

    when you insert a glowing wooden toothpick into a oxygen-filled pipet what would you observe? a. nothing b. the glow of the toothpick went completely out c. heard a gentle pop d. the glow of the toothpick got brighter and may have reignited. again Im

    asked by grace
  86. Algebra

    3x^4-31x^2+28=0 Solve the equation??

    asked by None ya
  87. Chemistry

    What mass of Zn will be dissolved in 10 mL pH=2 HCl solution? Zn + 2HCl--> ZnCl2 + H2

    asked by Kelly
  88. chemistry

    when a 0.4-g almond sample is burned the heat gained by the water is 7525.4 J and the temperature of the water increased from 24 C to 58 C what was the mass of the water in grams? a. 50 b. 100 c. 45 d. 52.9

    asked by shannon
  89. APChemistry

    Thank you!!! Do catalysts affect: A, B, C, AB, AC, BC, or ABC???: where: A)activation energy B) enthalpy change (I am assuming this is delta H) C) value of the equilibrium constant thank you!!!

    asked by GRATEFUL AP CHEMISTRY STUDENT
  90. APChemistry

    Hi! Thnak you again! Just checking: any element of increasing atomic number after phosphorus (including Phosphorus) CAN have an expanded octet? Thank you!

    asked by GRATEFUL AP CHEMISTRY STUDENT
  91. Chemistry

    What is the molar mass of a solute if 62 g of the solute in 125 g of water produce a 5.3 molal solution?

    asked by Anna
  92. math

    a fence post a 4-foot shadow at the same time that a tree next to it cast a 64-foot shadow. how tall os the tree? a)66 b)70 c)74 d)78 e)not enought information is given

    asked by morgan
  93. science/chemistry

    The van der waals equation incorperates corrections for the ideal gas laws in order to account for the properties of real gases. one of the corrections accounts for 1:The kinetic energy being inversly proportional to the temperature 2:The possibility of

    asked by Puzzled
  94. science- chemistry

    what must be the concentration of Cl- to just start precipitation of CuCl from a solution which is 4.896x10^-6M in CuNO3? Ksp = 1.9x10^-7

    asked by pigglet
  95. math

    thirty-sit people are registered for an evening class. if twice as many men as women are registered for the class, how many men are registered? 1)24 2)18 3)12 4)6 5)not enought information

    asked by Anonymous
  96. Pre-cal

    Please determine the following limit if they exist. If the limit doe not exist put DNE. lim 2x^3 / x^2 + 10x - 12 x->infinity. Thanks.

    asked by Randy
  97. history

    the army overthrows the civilian government in the nations capital. the chief of the army staff takes control of national policy-making suspending the free press and the elected assembly. the type of political system now in control is a? 1)direct democracy

    asked by kayci
  98. math

    using a deck of cards,what is the probability that you would pull a red kind and a black queen in two pulls without replacing the first card back into the deck?

    asked by kezia
  99. trig

    TA and TB are two cables helping to brace a 500 ft radio tower, FT. If the angles which the cables make with the horizontal are 62 and 50 (degrees), find the distance between their anchor points

    asked by Michael
  100. algebra

    What is the volume of a box whose length is 12-2x, width is 7-2x, and height is x. l*w*=height 12*7=84 2x=84 x=42 Is this right, check for me please

    asked by Keaton
  101. English

    Can you check if everything is OK? Thank you very much for your invaluable help. 1) You mustn't bully your friends. 2) You mustn't disturb the lesson. 3) You must forge your parent's signature in your school report. 4) Are you going to be tested in history

    asked by Franco
  102. Statistics

    A population has a mean of 200 and standard deviation of 50 and simple random sample size of 100 and x is used to estimate u. What is the probility that the sample mean will be within plus or minue 5 of the population mean?

    asked by Vroni
  103. statistics

    A survey was mailed to a total of 400 students; 100 were randomly selected from each of the freshman, sophomore, junior and senior classes last semester. What sampling method was used?

    asked by Amy
  104. physical science

    which of the following properties of light support the wave theory; existence of photons, can be reflected, can be refracted?

    asked by sue
  105. Math

    What is 4.85 divided by 5

    asked by Gary Lee
  106. Trig

    A swimmer heads perpendicular to a 2-miles-per-hour current. His speed in still water is 1.8 miles per hour. Find the actual speed of the swimmer and his direction angle, 0 (the zero right here is supposed to have a line through the middle of it, I think

    asked by MEGGG!!!
  107. college

    i need math help please. on a math problem

    asked by Kim
  108. chemistry

    The temperature of a sample of water increases from 20.7°C to 45.7°C as it absorbs 5675 J of heat. What is the mass of the sample?

    asked by brett
  109. LIB

    The International Atomic Energy Agency (IAEA) 1. controls nuclear weapons stockpiles. 2. inspects nuclear power plants. 3. tests nuclear weapons. 4. builds nuclear power stations. I think it's number 4

    asked by tammy
  110. math

    A polyhedron has 15 vertices and 31 edges. How many faces does it have?

    asked by KiKi
  111. science

    list the steps on active virus follows when attacking a cell.

    asked by mrs.bieber
  112. physical science

    inside the cylinders of a diesel engine, what helps to ignite the fuel and air?

    asked by Coby
  113. precal

    Evaluate tan B tan C if triangle ABC is not a right trianlge and cos A=cosB cosC.

    asked by krista
  114. Algebra

    I need to make an algebra problem using a cake with the measurements 12 inches by 16 inches and 3 inches thick. There were also 30 guest there and half of the cake was left. I also need the concept being used.

    asked by Beth
  115. english

    Did you know that Paul Revere rode through the countryside calling men to arms class? where does the comma belong? how can i rewrite this sentence with a comma?

    asked by jj
  116. physics

    The potential energy stored in the compressed spring of a dart gun, with a spring constant of 36.00 N/m, is 0.880 J. Find by how much is the spring is compressed.

    asked by Ben
  117. physics

    The potential energy stored in the compressed spring of a dart gun, with a spring constant of 36.00 N/m, is 0.880 J. Find by how much is the spring is compressed.

    asked by Ben
  118. physics

    The potential energy stored in the compressed spring of a dart gun, with a spring constant of 36.00 N/m, is 0.880 J. Find by how much is the spring is compressed.

    asked by Ben
  119. chemistry

    The density of 3M solution of NaCl is 1.25 g/mL. Calculate the molality of the solution.

    asked by varsha
  120. English

    Can you please tell me which is the best choice? I really hope you can have a look at it today. Thanks a lot! 1) He's going to take his car to a mechanic ( or mechanic's?) 2)How are the different pilgrims presented and what are the main themes covered in

    asked by Franco
  121. Math

    A manufacturer produces certain devices. The fixed cost of production is $2000. The first unit produced cost $2 and the cost per unit increases by 20 cents or each additional unit produced. What is the total cost C of producing x units?

    asked by Tim
  122. bus.

    Is it a good idea to open American fast food restaurants in Disney parks overseas selling the same kind of food sold in U.S. parks?

    asked by Anonymous
  123. science

    why is it a good thing when spores grow on the underside of the frond?????

    asked by Gaby
  124. 5th grade

    what's "n to the 10th is 27" in a algebraic expression?

    asked by Mehh
  125. math

    using a deck of cards,what is the probability that you would pull a red kind and a black queen in two pulls without replacing the first card back into the deck?

    asked by kezia
  126. trig

    A sinusoid (sine curve) rises from a minimum value of y=-8 at x=0 to a maximum value of y=40 at x=50. Write a sine function for this curve

    asked by Michael
  127. 11th grade science

    How would you balance Na2O plus HOH

    asked by jku
  128. MATH

    25 PERCENT AND 90 PERCENT OF 80

    asked by EEMAN
  129. math

    use the method of Gauss to find the sum. 2+4+6+...+300 is it 300(300+2)/2 = 45300

    asked by Meghan
  130. Math Linear functions

    How do I solve for (9,-1) and (6,-2)

    asked by Susie
  131. ETH 125

    Where can I find information on African Americans being colonized? Did they face prejudice, segreation, racism, or any combination of the three. If so where can I find why and how?

    asked by Tracie
  132. language arts

    unscamble the letter to find the name of a mall trrlnematitanaaon

    asked by mathew
  133. Trig

    Nathan and Julia are walking along lines that form a 38 degree angle. If Nathan walks at 3.6 miles per hour and Julia walks at 4.1 miles per hour, how far apart will they be after 2 hours?

    asked by MEGGG!!!
  134. geometry

    the slope of a line that is perpendicular to (2,4) and (-1,0) is

    asked by Ben
  135. LIB

    Which of the following areas is covered by a treaty prohibiting nuclear arms being deployed there?

    asked by tammy
  136. health international

    What are the economics in India(poverty level), Demographic( includes social indicators) and health includes mortality Learn what they mean

    asked by Daniela
  137. chemistry

    when I bubbled Alka selzer into limewater I believe all I saw was small bubbles form. is that correct and why? if not what should I have observed.

    asked by grace
  138. chem

    what is the Ka for a 0.1994M propionic acid solution if pH is 2.795? CH3CH2CO2H(aq)+H2O(l)CH3CH2CO2-(aq)+H3O(aq) someone please help.. I have a final in two days.

    asked by manda
  139. geometry

    4/7 of a 49 degree angle

    asked by Anonymous
  140. English

    I just wanted to say thanks guys for all your help in my English class I really enjoy working with Jiskha

    asked by christopher
  141. SQL

    Due today Submit a text file (extension .txt). 1- Write a statement that creates a table named Part, with an Id field as an int idendity PK, a SupplierId int field, a Description string field of size 25, a Count int field, a Class string field of size 5,

    asked by adesola
  142. Alegebra

    What is the volume of a box whose length is 12-2x, width is 7-2x and height is x? L*W=height Can someone help me with this problem please

    asked by Keaton
  143. chemistry

    if you burned a marshmallow with a net mass of 0.8g and you heated 49.1 g of water from an initial temperature of 24C to a final temperature of 28C what is the heat energy per gram of marshmallow? (express your answer in J/g) a. 822 J/g b. 1027 J/g c.

    asked by shannon
  144. chem

    A steel container of oxygen has a volume of 20.0 L at 22 C @35 atm. What is the volume @ STP? How many mol of oxygen are in the container?

    asked by hanna banana
  145. pre calculus

    How do you simplify cos ((pi)/2) - feta?

    asked by gisele
  146. APChemistry

    Thank you very much How do you know that the geometries of the following polyatomics ( SO4 2- , PO4 3- and ClO4 1-) are TETRAHEDRAL? Thank you!!!

    asked by GRATEFUL AP CHEMISTRY STUDENT
  147. APChemistry

    Thank you very much~ When you do the VSEPR changes for an octahedral, do you first remove the electrons from the poles, or from the equator?

    asked by GRATEFUL AP CHEMISTRY STUDENT
  148. Algebra 2.

    16x^4+8x^3+17x^2+8x+1 I have tried it but i keep getting the wrong roots can someone solve this?

    asked by Karin
  149. Economics

    Programs aimed only at people who are poor or disabled are known as? a. social insurance programs b. governmental programs c. federally funded programs d. public assistance programs

    asked by kate
  150. math

    y X 8 = 72

    asked by jj
  151. English-please help

    To bring to your organization enthusiasm, dedication, responsibility, and good work ethic, combined with a desire to utilize my skills obtained through work experience. Is that correct sentense??

    asked by raj
  152. accounting

    Cash Management Matrix For each principle in the matrix,describe how the principle ensures the reliability of a company's financial statements and provide at least one example of how the principle might work in a real company. Principles of Internal

    asked by Tony
  153. accounting

    Cash Management Matrix For each principle in the matrix,describe how the principle ensures the reliability of a company's financial statements and provide at least one example of how the principle might work in a real company. Principles of Internal

    asked by Tony
  154. math

    to make 5 sets of curtains when eachset requires 2 1/3 yards how many of material are needed?

    asked by michael
  155. Physics (Center of Gravity)

    In a lab in my physics class, we were supposed to find the CG of my physics teacher. My partner and I had him lie flat on a wooden (assumed uniform) board that was resting on top of two PVC pipes at either end. Since the PVC pipes acted as the base of

    asked by Brittany
  156. ETH 125

    how does glass walls glass ceilings or glass escalator effect native Americans?

    asked by Terri
  157. chemistry

    DR BOB Can you check my answer at Monday may 10 2010 at 7:12 pm at Chemistry -andy(Page 2) I think I may have got it !!! Thanks andy

    asked by Andy
  158. resume (education)

    I have to make a resume and my teacher wants us to include any professional memberships. Does honor society (in college) count? If not, please include some examples of professional memberships. Thank you!

    asked by Ashleigh
  159. chemistry

    How many atoms of Ag are in each of the following quantities? 1- 0.38 mole Ag2S? 2- 0.78 mole AgCl?

    asked by James
  160. Language arts

    Life is full of choices, so i must learn to make good ones. Is the verb in this phrase just " is" or are there more

    asked by Fabian
  161. ETH 125

    I am writing an essay on African American people I need to tell if they are colonized or immigrated? Can someone help me.Where could I find information on this?

    asked by Tracie
  162. English

    What are some good key quotes (about 6-8) for Reverend Hale in The Crucible?

    asked by Joe
  163. 6th grade

    Explain words that modifies

    asked by Anonymous
  164. Math

    Use the method of Gauss to find the sum. 2+4+6+...+300 is it 300(300+2)/2 = 45300

    asked by Meghan
  165. calculus I

    I posted the wrong problem an hour ago. What is the integration of √(cotx)/sinx dx by using substitution? I don't think it's solvable.

    asked by John
  166. chemistry

    Calculate how many L of 21M HCL must be added to make 1L to .1M HCL.

    asked by clarissa
  167. Geography

    What are the Four Modernizations of china?

    asked by Puff
  168. accounting

    pg76 excercises 2-4 and 2-5

    asked by norma
  169. History

    Where can i find info on china and japan during 18th to 19th century.

    asked by Vince
  170. science

    explain how vaccines prevent infection

    asked by mrs.bieber
  171. Algebra1

    7x^8y^3+9x63^2

    asked by Jasmine
  172. LAL!

    in this sentence is the verb MAY FIND or FIND You may find the Sargasso Sea.

    asked by Sara!
  173. science

    infer how some viruses might be helpful.

    asked by mrs.bieber
  174. business

    2. Individual Assignment: Widget Production • Evaluate a company that has personal issues that must be resolved. Read the following scenario to evaluate Taylor Inc. operations-management processes to help them maximize labor productivity. Management

    asked by kathie
  175. CHEMISTRY!!

    Calculate the mass in grams of 2.74L of CO gas at 33 degrees celcius and 126.0 kPa I got 3.75 grams Is this right please Thanks

    asked by Andy
  176. science

    hello! i was wondering if anyone knows when dinosaurs evolved.

    asked by Danielle (7th grade)
  177. math

    Explain in your own words why the line x = -8 is a vertical line.

    asked by Lori
  178. Algebra

    I need to make an algebra problem using a cake with the measurements 12 inches by 16 inches and 3 inches thick. There were also 30 guest there and half of the cake was left. I also need the concept being used.

    asked by Beth
  179. social studies

    I NEED HELP FOR QUOTATION MARK

    asked by JESUS
  180. psychology

    many of the chemicals that affect the brain operate by

    asked by steve menice
  181. Human services

    what are the pros and cons of placing children of color in a causian home?

    asked by Zoe
  182. Economics

    Property taxes, which are calculated as a percentage of the value of a home, are an example of a. the benefits- received principle b. a regressive tax c. the ability to pay principle d. a proportional tax

    asked by Mary
  183. algebra

    ã200 + ã70 + ã300 =

    asked by Kat
  184. math

    what was the population of the world in 1500 in billions if it is 0.5

    asked by precious
  185. Parenthetical Reference

    Whish one would be CORRECT: " quote " (Bryan). OR " quote " (UCLA). This is the website (the speech is by a person named William Bryan). UCLA Center for East Asian Studies. Resource page. UCLA International Institute. XX Feb. 2010 (website)

    asked by Anonymous
  186. Algebra (repost)

    Can you help me on this problem as well? (or anyone.) Solve each inequality and check your solution. h - > -7 4 (bumping)

    asked by Dean
  187. business math

    Evaluate a company that has personal issues that must be resolved. Read the following scenario to evaluate Taylor Inc. operations-management processes to help them maximize labor productivity. Management for Taylor Inc. would also like you to suggest

    asked by Anonymous
  188. business math

    Evaluate a company that has personal issues that must be resolved. Read the following scenario to evaluate Taylor Inc. operations-management processes to help them maximize labor productivity. Management for Taylor Inc. would also like you to suggest

    asked by Anonymous
  189. chemistry

    how to write a mass blanc of cacl2

    asked by ken
  190. science

    Dr bob, can you check my reply to chem question from andy thanx

    asked by Andy
  191. language arts

    in this sentence what is the contrast " Water like fat raindrops that fall from skinny trees "

    asked by Eliza
  192. science- chemistry

    What is the concentration of Ag+ in 0.0543M AgNO3 and 1.1657CN-? Ag+ +2CN- [Ag(CN)sub2]- kf = 5.3x10^18

    asked by pigglet
  193. algebra

    (np^2)-3

    asked by jan
  194. Chemistry 212

    the half life of F18 is 2.089x10^-4yrs. How long would it take (in days) for F18 to decrease to 78.71% of its initial amount?

    asked by pookie
  195. Social Studies

    Explain the use and development of transportation and communication systems in regions of Canada.

    asked by Sally
  196. Calculus

    How do I find the integration of √(cot) / sin^2(x) by using substitution?

    asked by John
  197. calculus

    to the nearest metre x=24m and y=6m. Calculate the upper bound for the value of xy

    asked by Anonymous
  198. Time

    How to convert mins into hrs like convert 7hrs 30 mins to hrs?

    asked by Anonymous
  199. 8th grade social studies

    which of the followin is a power of the president???

    asked by andrew
  200. physical science

    which substance is a base in this equation, Ba(OH)2 + 2 HNO3

    asked by sue
  201. college

    Incorporating Statistics, Graphs,and Illustration Assignment My topic is about drugs

    asked by Skyla
  202. math

    speakeasy company offers customers a choice between 3 schemes:1st,a monthly charge of $15 + 5cents/ min.2nd,a monthly charge of $5 for the line rental +20 cents/min,3rd a(pay as you go) charge of 35cents/min with no monthly line rental charge.

    asked by rima
  203. criminal justice

    Does this media viewpoint accurately protray these professionals.

    asked by Anonymous