Questions Asked on
March 16, 2010

  1. math

    Which has the lower unit price? Soap. brand A:$1.34 for 3 bars. brand B:$1.44 for 4 bars. i think it is b.

    asked by candance
  2. math

    Betty bought 105 ft of fencing to enclose a vegetable garden in her backyard. The garden is to be a rectangle, twice as long as it is wide, with a fence across the middle parallel to the width. What should be the dimension of the garden in feet?

    asked by Bank
  3. math

    Erin takes a total of 5 hours in her boat to travel a distance upriver and return downriver the same distance. If the time traveling upriver is twice the time traveling downriver, how many hours does each trip take? How do I put this into two equation and

    asked by Lauren
  4. chemistry

    grams of sodium chloride dissolved in 100mL of water at 20 degrees celcius

    asked by ace2
  5. Math

    Find A �� B, given A = {people who are less than 20 years old} and B = {people who have a job}. A) {people who are less than 20 years old and people who have a job} B) {people who are less than 20 years old and have a job} C) {people who are

    asked by Lisa
  6. chemistry

    At 2200 degrees celsius,kp=0.050 for the reaction: n2(g)+O2(g) ->2NO(g)

    asked by Anonymous
  7. English

    what does "explain why this character's ... is significant to the meaning of the work of literature" mean?

    asked by Ana
  8. communications

    What are personal conflict management styles

    asked by sally
  9. Math(Please help)

    1)tan Q = -3/4 Find cosQ -3^2 + 4^2 = x^2 9+16 = sqrt 25 = 5 cos = ad/hy = -4/5 Am I correct? 2) Use the sum and difference identites sin[x + pi/4] + sin[x-pi/4] = -1 sinx cospi/4 + cosxsin pi/4 + sinx cos pi/4 - cosx sin pi/4 = -1 2 sin x cos pi/4 =-1 cos

    asked by Abbey
  10. Pre-Cal(Please check)

    1)f(x) = -x + sqrt 4 - x^2 Find f(-2) -(-2) + sqrt 4 - (-2)^2 = 2 + sqrt 4 + 4 2 + sqrt 8 = 4.828 Is this correct?

    asked by Hannah
  11. statistics

    in certain manufacturing processes parts must be machined tonwithin specified tolerences. the parts must have a mean length of of six inches plus or minus 0.26 inches .A SAMPLING PROCEDURE HAS BEEN ESTABLISHED to determine wether the ten parts are within

    asked by deedee
  12. math

    The largest bubble chamber in the world is 15 ft in diameter and contains 7259 gal of liquid hydrogen at a temperature of 2247°C. If the temperature is dropped by 11°C per hour for 2 consecutive hours, what is the new temperature

    asked by kirk
  13. math

    The greatest recorded temperature ranges in the world are around the “cold pole” in Siberia. Temperatures in Verkhoyansk have varied from 294°F to 98°F. What is the difference between the high and low temperatures in Verkhoyansk?

    asked by kirk
  14. math

    On each of four consecutive plays in a football game, a team lost 11 yd. If lost yardage is interpreted as a negative integer, write the information as a product of integers and determine the total number of yards lost.

    asked by kirk
  15. math

    If Jack Jones lost a total of 66 yd in 11 plays, how many yards, on the average, did he lose on each play?

    asked by kirk
  16. Calculus 2

    i need to find the amount of gallons of different water heights on a Horizontal tank with Elliptical Cross-Sections minor axis height is 4 minor axis length is 6 tank length is 16

    asked by Kyle
  17. Calculus 2

    i need to find the amount of gallons of different water heights on a Horizontal tank with Elliptical Cross-Sections minor axis height is 4 minor axis length is 6 tank length is 16

    asked by Kyle
  18. English - oral

    How to structure a 1 minute speech. I have to write it on an achievement i had. My one is a sports 1st place ribbon. PLEASE HELP!!!!

    asked by Millie
  19. cjs 200

    What are intermediate sanctions , their purpose in the criminal justice process, and their function as a sentencing alternative?

    asked by Anonymous
  20. math

    What are the number in the magic square of 4 by 4 if the magic number is 38?

    asked by JJ
  21. window server 2003

    . If you are performing a full backup each Friday to a single tape and a differential backup to a single tape on all other days of the week (including the weekend), what is the minimum number of tapes required to accommodate seven days worth of backups? a.

    asked by mike
  22. English

    How do I write a paragraph naming three possible agendas and one example of each that you might find in the media?

    asked by Betty
  23. social studies

    Why did the us need a protective tariff

    asked by m
  24. Thermodynamics

    a worker cleans a railroad car with steam of 15000ft^3 car on inside, t=240F P=14.7psia of steam. the car is closed. the steam inside cools until P=12 psia, at which time salad oil is added to tank. find a. heat transfer from steam during cooling, b.

    asked by spencer
  25. 8th grade science

    A glass of water is placed on a very sensitive scale and several antacids tablets are dropped into the water. The weight of the glass and its contents is less after the tablets dissolve than before the tablets dissolved. Tell how matter is conserved ?

    asked by Michaela
  26. business

    Which of the following is the most important step to help improve America's business ethics

    asked by Anonymous
  27. quantitive literacy

    Select an investment plan for a family with a child that is x years old and has y dollars to invest. How can I make this into two different equations to be graphed?

    asked by timothy nies
  28. college

    Smokey the Bear celebrated his 65th birthday this year. Why has the message of the forest service that “only you can prevent forest fires” changed in recent years to allow more fires?

    asked by Natalie
  29. physics

    A stubborn, 120 {\rm kg} mule sits down and refuses to move. To drag the mule to the barn, the exasperated farmer ties a rope around the mule and pulls with his maximum force of 800 {\rm N}. The coefficients of friction between the mule and the ground are

    asked by norm
  30. Physics

    If you are wearing a watch, what energy changes are taking place in it right now?

    asked by AJ
  31. english

    I am doing a 1000-1500 word contrast/comparision essay. This is what I have so far. Could you tell me if this is good enough. This is part of the body. My neighbours, Sharon and Shelley both have two children each. Sharon has two beautiful girls with long,

    asked by deborah
  32. college

    Explain the relationship between program planning and grant proposals. When describing each component, address their similarities and differences as well as how they relate to each other.

    asked by Konnie
  33. Finance

    When changes occur in the assets of a business, these changes are reflected in the asset values reported on the balance sheet. Quite often, purchases of equipment, machinery, buildings, and property are necessary. How can purchases add value to the

    asked by Terri
  34. math 30 conics

    Hi i was given the equation (y-2)^2 - x^2/4 =1. I need to find the center, vertices and asymptotes of this hyperbola. I found the center (0,2) and the vertices were tricky but I think they are (0,1) (0,3) but I'm having trouble finding the asymptotes. Can

    asked by Tye
  35. 3rd grade math

    Write an expression that equals 468 that includes a combination that adds up to 100

    asked by Megan
  36. math

    if logx y=2, whic of the following is true?

    asked by ray
  37. trigonometry ?

    A cottage under construction is to be 15.6m wide. The two sides of the roof are to be supported by equal rafters that meet at a 52 degree angle. Determine the length of the rafters to the nearest cm using a) the cosine law b) the sine law I am not

    asked by deborah
  38. Calculus

    PLEASE HELP Find the equation of the line through the point (3,4) which cuts from the first quadrant a triangle of minimum area.

    asked by Santha
  39. Healthcare Administration

    Suppose you’re the head of CMS. CMS is now offering reimbursement for wheel chairs suppliers. What would happen if you decide to decrease the reimbursement for wheel chair suppliers?

    asked by Mary
  40. Chemistry

    How would each of the folowing affect the accuracy of the calculated neutralizing power of the antacid (too high, too low, no effect)? Explain why. a) Titration flask was wet with distilled water b) The burette was initally not rinsed with 0.10M NaOH and

    asked by Anonymous
  41. Physics

    An ice cube is placed in a microwave oven. Suppose the oven delivers 105 W of power to the ice cube and that it takes 32,200 J to melt it. How long does it take for the ice cube to melt?

    asked by John
  42. Healthcare

    Give three examples of asymmetric information in which the health consumer has information that is unavailable to the health provider.

    asked by Elizabeth
  43. physics

    A silver wire has resistance of 2.1ohms at 27.8 degree celsius and resistance of 2.8ohms at 98 degree celsius. Determine the temperature coefficient of resistance of silver wire and its resistance at zero deg.

    asked by Edwin
  44. physics

    The electrical motor runs on a D.C source of emf E and internal resistance r. Show that power output of the motor is max where current drawn by the motor is E/2r.

    asked by Edwin
  45. social studies

    why secondry social organisation considered to be complex social organisation.

    asked by aliyu
  46. physics

    A 24V battery of internal resistance of 10ohms is connected to a variable resistor. At what value of current drawn from battery the rate of heat produced by the resistor is maximum? Hence find its value.

    asked by Edwin
  47. physics

    Think of the mass hanging from the spring in Q2. If one pulls the mass down by 'y' amount and lets go, how far up past the equilibrium point does the mass go before coming to a stop?

    asked by Anonymous
  48. us history

    how were the truman doctrine and the marshall plan relevatn to the american foreign policy goal of containment?

    asked by Cassie
  49. math 30

    Help please i need to write 4x^2 -y^2 -8x -4y +16 =0 in standard form.4x^2 -8x - y^2 -4y=-16 so 4(x^2 -2x +1)-(y^2-4y+4= -16 -4 +4 so 4(x-1)^2/-16 -(y-2)^2/-16 =1 so (x-1)^2/-4 -(y-2)^2/-16 so if I multiply everything by -1 it will get rid of my (-) on the

    asked by Sandy
  50. Healthcare

    Give three examples in which the health provider has information that is unavailable to the health consumer.

    asked by Elizabeth
  51. Science

    What is something that I can compare an animal or plant cell to? I need to draw something that works similarly to a cell. For example, an amusement park or something.

    asked by Mike
  52. math

    solve tang3x+1=sec3x

    asked by ruben
  53. Chemistry

    Which test for iron(II) ions is conclusive?

    asked by Dan
  54. algebra

    1. You have recently found a location for your bakery and have begun implementing the first phases of your business plan. Your budget consists of an $80,000 loan from your family and a $38,250 small business loan. These loans must be repaid in full within

    asked by sally
  55. math

    x+3=5 x+4=9

    asked by navila
  56. fairtrade

    i need to do an pursuasive peice of writing on fairtrade help

    asked by Anonymous
  57. Health

    In the market for health insurance, what kind of asymmetric information causes adverse selection? Explain.

    asked by Elizabeth
  58. Stuck on 3d - Math

    Suppose you’re thinking about buying a used car, but you’ve become worried about the selection problems. In this market, the seller of each car knows the true value, but the buyer can’t determine the value until after purchase. Assume that there are

    asked by Amal
  59. teasers

    i have streets but nopavemet i have cities but no bulidings i have rivers yet no water what am i

    asked by emma
  60. Math 12

    I need to write this parabola question 2(x+3)^2 -1 in general form. Not sure how to do it. Do I sqaure whats in brackets first? x^2 + 6x +9 then *by 2 so 2x +12x +18 - 1 = 0 Would this be the answer or am I doing it wrong? Any help appreciated.

    asked by Ray
  61. math

    What is the value of the y-coordinate of the solution to the system of equations x + 2y = 9 and x - y = 3?

    asked by billy
  62. 12th grade

    Find the equation of the line through the point (3,4) which cuts from the first quadrant a triangle of minimum area.

    asked by Santha
  63. Biology Research Paper

    'We are currently in an energy crisis. After food, fossil fuels are humanity's most important source of energy. These resources take millions of years to make. We are currently using the fuels that were made more than 300 million years ago, before the time

    asked by mysterychicken
  64. calculus HELP URGENT

    Find the equation of the line through the point (3,4) which cuts from the first quadrant a triangle of minimum area.

    asked by Santha
  65. chemistry

    before beginning a titration, the burnet was not clean. after completing the titration,the student noticed that droplets of the titrant were clinging to the inside surface of the barrel.wolud the molarity be too high or too low?

    asked by Anonymous
  66. biology

    Suggest how the active transport of glucose out of the cell and into the bloodstream helps with the absorption of glucose from the small intestine. (2 marks)

    asked by nabiha
  67. science

    I am doing a project on the Silurian time period and we need to know some organisms that were created during the time and some that went extinct. I found a bunch that were created but i didn't find any that went extinct!! Help!!

    asked by Emily
  68. geometry

    What is the volume of a cone with a radius of 3 and a height of 19?

    asked by Brad
  69. SCIENCE

    Didn't mean to ask but i was really curious and didn't get an answer from researching.Why is physics necessary in becoming a dentist?

    asked by DEVAUGHN
  70. statistics

    Basic Concepts of Probability and Counting 1. License plates are made using 3 letters followed by 2 digits. How many different plates can be made if repetition of letters and digits is allowed? (26^3)(10^2) = (17576)(100) = 1,757,600

    asked by Looking for someone to check my answer
  71. Insurance

    Describe the costs and benefits to society from purchasing insurance.

    asked by Mandy
  72. Chemistry

    What is the colour of: 1. Cu+ 2. Cu2+ 3. Cu3+?

    asked by Alan
  73. spelling

    I believe our families are both related to George Washington. What a surprising occurrence! I believe our familys are both related George Washington. What a surprising ocurrence! Is the spelling right on either sentence.

    asked by Anonymous
  74. statistics

    Question: In 2001 the stock market took some big swings up and down. One thousand investors were asked how often they tracked their investments. The table below shows their responses. What is the probability that an investor tracks the portfolio monthly?

    asked by Looking for someone to check my answer
  75. apche,m

    what is the density of vinegar? thanks

    asked by urgent
  76. Math

    Can someone please explain (cos(x)+sin(x))/(cos(x)-sin(x)=sec(2x)+tan(2x). I have no luck with this. Thanks

    asked by Matt
  77. apchem

    what is the density of vinegar? thanks

    asked by urgent
  78. math

    Alex bought lemons that were priced at 2 lemons for 18¢. What was the total cost of 5 lemons?

    asked by betsie
  79. Algebra

    Simplify the complex fraction m^-1+z^-1 _________ m^-1- z^-1

    asked by Anonymous
  80. math

    csc(2x)=0.5sec(x)csc(x)

    asked by do
  81. marketing 401

    Organizational Values 1. Mention an organization of your choice that displays excellent values, that orient it for growth. What do you see these values as being? How do they lead to a growth orientation? Think of any organization you want to for this

    asked by cynthia
  82. math

    using the formula h(x) = 1.95 x + 72.85. Find the height of a female whose femur is 35 cm long x=length and H=height.

    asked by Maryann
  83. english

    I want to stay that a women is a handsome women but I cannot think of another word for handsome. I do not want to put pretty etc. as this is in not what I am trying to say. Hope you can help.

    asked by janae
  84. College Physics

    During a rescue operation, a 5600-kg helicopter hovers above a fixed point. The helicopter blades send air downward with a speed of 69 m/s. What mass of air must pass through the blades every second to produce enough thrust for the helicopter to hover?

    asked by Kyle
  85. College Physics

    Two 72.0-kg hockey players skating at 7.00 m/s collide and stick together. If the angle between their initial directions was 130 degrees , what is their speed after the collision?

    asked by Kyle
  86. College Physics

    You are holding a shopping basket at the grocery store with two 0.69-kg cartons of cereal at the left end of the basket. The basket is 0.90 m long. Where should you place a 1.8-kg half gallon of milk, relative to the left end of the basket, so that the

    asked by Kyle
  87. personal finance

    Nathaniel has three different insurance policies.He has been injured in an accident and has incurred $30,000 in medical bills.There is a clause in all of his insurance contracts that makes sure he receives no more than $30,000 in payments from his

    asked by vedrana
  88. statistics

    I don't know where to start with this one. What is the formula and how do I go about answering this? Question: If one of the 255 subjects is randomly chosen, what is the probability that the person prefers orange juice, given they are over 40? Round your

    asked by Looking for someone to check my answer
  89. Chemistry

    Determine the moles of ammonia in the following cobalt ammine complex: A sample of .1500 g of the cobalt ammine complex is places in a flask and 25.00mL of .200M HCL is added. a few drops of bromocresol green is added and the titration with .100M to NaOH

    asked by james
  90. world history

    Which has been a major change resulting from the industrialization of Western Europe? 1.increased social mobility 2.increased political power for the nobility 3.shrinking of the influence of the middle class 4.shift in wealth from northern to southern

    asked by mary
  91. Chemistry

    Cu(NH3)2^+ is a colourless compound. Will there be any absorbance at 600nm?

    asked by Alan
  92. algebra

    what is 3y(7y - 6) + 16y simplified

    asked by tyler
  93. chemistry

    What are the probably products of... a) an aqueous solution of two ionic compounds b) a single compound c) two elements d) oxygen and a compound of carbon and hydrogen ?

    asked by Bob
  94. geometry

    Two sides of a triangle measure 2x – 4 and 7x – 2 units, respectively. Which of these is a possible length for the third side of the triangle?

    asked by MARY
  95. statistics

    Question: The table below shows the drinking habits of adult men and women. Men Women Total Non-Drinker 387 421 808 Occasional Drinker 45 46 91 Regular Drinker 90 69 159 Heavy Drinker 37 34 71 Total 559 570 1,129 If one of the 1,129 people is randomly

    asked by Looking for someone to check my answer
  96. MATH

    WHY DID THE TEACHER TEACH ADOLESSON

    asked by Brakenette
  97. statistics

    Question: The table below shows the drinking habits of adult men and women. Men Women Total Non-Drinker 387 421 808 Occasional Drinker 45 46 91 Regular Drinker 90 69 159 Heavy Drinker 37 34 71 Total 559 570 1129 If one of the 1,129 people is randomly

    asked by Looking for someone to check my answer
  98. algebra

    I am greater than 15 and less than 40 If you double me I become a number that ends in 0 and of me is equal to 5 [Click to preview algebra format]

    asked by Chelsea
  99. math

    whare are the scale and interval in a frequency table? I don't understand what they mean. On my table there's a weight, how many times something weighs that and -the tally 00 and the frrequency

    asked by Julie
  100. Math

    Write an equation to describe the variation. Use k for the constant of proportionality. x varies directly as the square of y and inversely as z

    asked by Anonymous
  101. math

    double my tens digit to get my ones digit. double me and i am less than 50

    asked by christian
  102. computers

    Develop an algorithm or write a pseudo-code that accepts as input the names of an unspecified number of students who each have rented books form the school's book program and are now returning them.

    asked by Anonymous
  103. Chemistry

    1x10-2 mol of MgSO4 (Ksp = 9) is added to 1 L of water. Will 1x10-5 mol of CaSO4 (Ksp = 10-6) completely dissolve in the solution? I think the answer is yes...because the Q will be less than Ksp of 10^-6?? Which of the following salts would you expect to

    asked by Trixie
  104. biology

    in humans, the genotype XX results in a ____ any help, please?

    asked by Marina
  105. us history

    Progressivism was the first national reform movement that set out to resolve social problems without the aim of overturning the government. What tactics did progressives employ to influence the government at all levels? Why were progressives so successful

    asked by Anonymous
  106. Algebra

    While traveling in a car, the centrifugal force a passenger experiences as the car drives in a circle varies jointly as the mass of the passenger and the square of the speed of the car. If the a passenger experiences a force of 100.8 newtons when the car

    asked by Anonymous
  107. Probability/Math

    Find the probability that a randomly thrown dart will land in the shaded area of the dartboard. A square that is 6ft width by 6ft length 4ft width by 9ft length.

    asked by Addy
  108. algebra

    Plane X flies 2,000 kilometers in 5 hours. Plane Y flies half as far in twice the time. What is the average speed, in kilometers per hour, of plane Y?

    asked by ashlee
  109. math

    put this in lowest to greatest 95,9.5,.95,.9,9 thank you

    asked by ST
  110. math

    put this in lowest to greatest 1.6,16,16.1,.16,161 thank you

    asked by ST
  111. chemistry

    What is the boiling point of the water in your radiator if 2.00kg of antifreeze (ethylene glycol, C2H6O2) is added to 9.00x10^3 grams of water?

    asked by Katelynn
  112. Math

    Janessa bought 4 stamps for $1.84. At this,rate how much would 10 stamps cost?

    asked by Ray'Janay
  113. grammar

    What is a good adverbfor the verb go?

    asked by citlalli
  114. Physics

    A room has a volume of 120 m^3. An air-conditioning system is used to replace the air in the room every twenty minutes, using ducts that have a square cross ection. Assuming that air can be treated as an incompressible fluid, calculate the length of a side

    asked by ALan
  115. English

    I still hae a few doubts on the Beowulf as well as on street directions. I really hope you can check these sentences. 1) The breath of the dragon flared up and the ground boomed. 2) Beowulf summoned the strength to swing his sword so hard that it snapped

    asked by Franco
  116. Islam

    How did Islamic civilization spread to encompass such an extensive empire(in the Middle East)? What practices or methods were used to spread Islam? P.S: If Ms.Sue answers this, PLAESE GIVE ME ENOUGH INFORMATION TO WRITE ON A ESSAY, I HELP WITH THIS,

    asked by Troy
  117. math

    There are 27 bones in each hand. The fingers have 6 more bones than the wrist and the palm has 3 less bones that the wrist. How many bones are in the fingers nd wrist?

    asked by Anonymous
  118. Chemistry

    The SI temperature unit is Celsius? A kelvin is the same temperature interval as a degree______? A temperature difference taken between two objects has ______numerical value in Kelvins and in degrees Celsius. I don't know what to write for the last 2. I'm

    asked by Ana
  119. Biology Research Paper

    'We are currently in an energy crisis. After food, fossil fuels are humanity's most important source of energy. These resources take millions of years to make. We are currently using the fuels that were made more than 300 million years ago, before the time

    asked by mysterychicken
  120. 9th grade

    what is the value of x in the system? 5x-3y=23 3x+5y=7

    asked by ashtyn
  121. math

    how are functions connected to right triangles?

    asked by laneice
  122. math

    log (32). the 2 is to the bottom of g in log 2 log (?)=3 2

    asked by maddison
  123. statistics

    I don't know how to begin this question and it is due tonight. I'm not looking for someone to give me the answer. I just need help with the formula that I use and how do I go about answering this? Is the formula: P = P(total subject) / P(OJ drinker over

    asked by please help me!
  124. english

    what is a good adverb for put

    asked by citlalli
  125. Science

    im doing this project on boron and one fact says that if we didn't have boron we would die, but why is that? .. plz gimme detailed explanation .. thx

    asked by Anna
  126. English

    What would be two advantages of being immortal, and two disadvantages of being immortal. Two advantages of being immortal: 1.- Everyone is scared of you and you can do what you want. 2.- Self esteem rises I need help putting these into quotes, ur help will

    asked by Sara
  127. chemistry

    Which of the following molecules is polar? 1. CH4 2. BH3 3. NH3 4. CF4 5. H2

    asked by demi
  128. communication

    Do a Web Search for “evidence and proof.” From the results of that search, explain what makes good evidence.

    asked by dana
  129. College Chemistry Lab

    Suppose that a 2.50x10^-6M solution of red dye No. 2 had an absorbance of 0.585 at its wavelength of maximum absorbance. A second solution of red dye No. 2 is too concentrated to read its absorbance so 5.00 mL of the concentrated dye solution was diluted

    asked by L**
  130. College Chemistry Lab

    Determine the molarity of FD&C Yellow #5 in the following solution that's prepared by mixing the dye solution with water and alcohol. None of the solutes react with one another. 6.35x10^-5M FD&C Yellow #5 = 6.50mL deionized water = 6.50mL ethyl alcohol =

    asked by L**
  131. Chemistry

    How does the Diethylacetal impurity arise in fermentation?

    asked by Destiny
  132. Chemistry

    Calculate how many milliliters of carbon dioxide would be produced theoretically from 2.0g of sucrose at 25 deg Cel and 1 atm pressure.

    asked by Destiny
  133. physics

    a garbage barge on the hudson river, measures 25 x 5 x 1 meters & floats in the water. how much deeper does the barge float when 4200 kg of garbage is in it? so far, all i know is the volume of the barge is 125 m^3. now i just don't know what to do next.

    asked by john
  134. physics

    an aluminum object has a mass of 27 kg & a density of 2700 kg/m^3. it is hung from a rope under the surface of water (density=1000 kg/m^3). what is the volume of the object and the tension in the string, while the object hangs from it & also under the

    asked by john
  135. physics

    a 100 kg boulder is placed under the surface of water. its volume is 0.5 x 10^5 cm^3. what is the weight of the rock while under water; compare that to the weight of the rock in air (sitting on the ground) i just found the weight of the rock in air by

    asked by john
  136. Chemistry

    The pH of 0.50 M HBrO(aq) is 4.50. Calculate the change in pH when 6.50 g of sodium hypobromite is added to 110. mL of the solution. Ignore any change in volume. Ka of HBrO is 2E-9 I found the amount of moles used for each (.0547 mol NaBrO, and .055 mol

    asked by Trixie
  137. Math Functions

    ok so what kind of function is this? X Y ---------------- 2 1032 4 700 6 200 8 12 10 1000 12 4412 Thank you!! :)

    asked by Ryan!
  138. math

    I was given the equation (y-2)^2 - x^2 =1 and asked to locate the center, vertices,and asymptotes. ifound the center to be (0,2) and the verticies are(0,1)and (0,3). but I'm not sure how to find the asymptotes. Could you please help me find them and

    asked by Tye
  139. world geography

    since the 1970 european have tired to limit

    asked by nicole
  140. Math

    Write one numerical expression and one algebraic expression. Then explain what the differnce between a numerical and algebraic expression is.

    asked by Cameron
  141. College Chemistry Lab

    For the following mixture, determine the initial concentration of Fe^3+. 0.00250M Fe^3+ --- 8.00mL 0.00250M SCN^- --- 7.50mL 0.10M HNO3 --- 4.50mL

    asked by L**
  142. math 30

    I need to write 4x^2 - y^2 -8x -4y + 16 = 0 in standard form and I keep getting it wrong. Could someone please help me. Thanks

    asked by Sandy
  143. english

    What is a good adverb for the verb pull?

    asked by citlalli
  144. 6th grade math

    if the area of a rectangle is 20 square units and the length of the base to the height are in a ratio of 5:1 what is the perimeter of the rectangle ?

    asked by nettie <3
  145. chemistry

    The traditional method of analyzing the amount of chloride ion present in a sample was to dissolve the sample in water and then slowly add a solution of silver nitrate. Silver chloride is very insoluble in water, and by adding a slight excess of silver

    asked by James
  146. math

    I calculated the average number of crashes over a 240 week period to be .0875... what formula do I use to calculate the probability that at least 19 crashes would occur over that 240 week period?

    asked by Alan
  147. geometry

    a book is 3 times as long as wide. Find the length and width of the book in inches if its area is numerically 128 more than its perimeter

    asked by judi
  148. Science

    Im doing this element project and my element is boron. i need to theme my poster with whatever element i get. example: for helium you can draw balloons on your poster... ive got no ideas for boron. help please.. something creative THnks

    asked by Anna
  149. history

    Compare the colonial empires of Spain, France and England in terms of their settlements, economic structure and political control.

    asked by Mikayla
  150. math

    which is bigger 16/50 or 9/30

    asked by Leslie
  151. Chemistry

    Calculate the pH of the solution that results from mixing the following reagents. Refer to table 1. mix 0.189 L of 0.019 M (CH3)2NH(aq) with 0.327 L of 0.011 M (CH3)2NH2Cl(aq) I tried using the Henderson-Hasselbach equation by finding the pKa but it didn't

    asked by Trixie
  152. grammar

    man:woman:: curved :

    asked by Anonymous
  153. math

    Today Justin reached 1/11 the age his mother was when he was born. Today Justin's mother is ____ times as old as Justin.

    asked by bh
  154. English - To Ms. Sue

    The teacher wants us to express our answer to this question in a quote, then underneath that, she wants us to tell what we mean by it. I have expressed what I mean, but I just can't turn these into quotes. What would be two advantages of being immortal,

    asked by Sara
  155. medical -health

    you woek in the hospital's health information management department. part of your job is to assist the medical residents with completing records documenttation. one of the residents complains that he doesn't understand why insurance companies need so much

    asked by kim
  156. Chemistry

    The question is what is the molecular equation for acetic acid mixed with ammonia, sulfuric acid mixed with barium hydroxide, copper (II) sulfate mixed with hydrosulfuric acid, and copper (II) acetate mixed with hydrosulfuric acid. I've attempted some but

    asked by Bach
  157. Chemistry

    Identify the precipitate formed when solutions of these compounds are mixed. H2SO4 + BaCl2 ==> So when you do the double replacement reaction, would the products of this chemical equation be HCl + BaSO4? or H2Cl2 + BaSO4 ? (not balanced) also would both of

    asked by Jack
  158. Chemistry

    Copper(II) chloride and lead(II) nitrate react in aqueous solutions by double replacement. Write the balanced chemical equation, the over all ionic equation, and the net ionic equation for this reaction. If 16.06g of copper(II) chloride react, what is the

    asked by Steven
  159. physics

    single-slit diffraction pattern is formed when light of 680.0 nm is passed through a narrow slit. The pattern is viewed on a screen placed one meter from the slit. What is the width of the slit (mm) if the width of the central maximum is 2.69 cm?

    asked by Andy
  160. Computer Science

    What are two dimensional arrays and can they be seen anytime as a one dimensional array?

    asked by Ren
  161. physics

    If the average household uses electrical energy daily at the rate of 500. W, how much U-235 must undergo fission to supply this need for a year? (assume 200. MeV of energy are generated per fission and that the power plant is 46% efficient). 1. Energy used

    asked by sasha
  162. books

    how can I explain the law as a living body?

    asked by Anonymous
  163. Business Communications

    Which of the following sentences uses passive voice appropriately? A:"Your order was shipped yesterday and should arrive Friday." B:"The shipping clerk sent your order yesterday and it should arrive by Friday." C:"The decision was made after much debate

    asked by Chris
  164. algebra

    y-5=13 what does y=

    asked by popcorn
  165. Business

    Christine proudly tells you that she recently got dividends from of one of her investments. She obviously invested in: a) stocks b) GICs c) corporate Bonds d) a money market fund

    asked by Lena
  166. algebra

    Evaluate whether a prepaid or monthly cell phone plan is most effective for a customer that uses x weekday minutes per month. I can make up my own numbers for each plan. Having problems making up the equations.

    asked by Katie
  167. math

    According to Sal's map he is is 6 units away from the grocery. The grocery store is 5 units away from the coffee shop. The coffee shop is 1 unit away from Sal's house. How is this possible?

    asked by Dan
  168. 1st grade

    this is practice write some names for 12 Please helping us thanks John

    asked by john
  169. Chemistry

    Is 2HCl soluble in water? Is BaSO4 soluble in water?

    asked by Jack
  170. Biology

    23. Since DNA sequences in humans and chimpanzees are very similar a. humans must have evolved from chimpanzees b. chimpanzees must have single-stranded DNA c. humans and chimpanzees must have a recent common ancestor d. humans and chimpanzees are the same

    asked by mysterychicken
  171. English

    1. There are peieces of words. You should put the word pieces together and make complete English words by going through the maze. The first one is done for you. OK. Let's go. 2. Roll the dice and if you get #3, move forward three spaces and put your marker

    asked by rfvv
  172. math

    one canned jucie drink is 15% orange jucie; another is 10% orange jucie. How many liters of each should be mixed together in order to get 5L that is 11% orange jucie? How many liter of the 15% orange jucie and how many liters of the 10% orange jucie should

    asked by Sue
  173. physics

    Short projectile motion question a peron kicks a football from 39.6 meters from the goal posts. the kcik leaves the ground with a speed of 24.8m/s at an angle of 49.6 degrees. the goal post are 3.10 meters high determine the amount by which the kick clears

    asked by jake
  174. for fun

    a person who studies and collects rocks for fun

    asked by Anonymous
  175. math

    The perimeter of a rectangle is 148inches. The length exceeds the width by 10 inches Find the length and width.

    asked by Holly
  176. microeconomics

    The positive contribution of politics in the determination of economic policy is that it takes market failures and failures of market outcomes into account when formulatiing policy. True or False

    asked by Mary
  177. Trig

    A body of unknown mass is attached to an ideal spring with k=120 n/m. it is found to vibrate with a frequency of 4 Hz. find the period the angular frequency and the mass of the body

    asked by Nicole Lovato
  178. pyhsical science

    How much heat is necessary to vaporize 100 g of water at 100 °C to form steam at 100 °C?

    asked by Anonymous
  179. physical science

    How much heat is necessary to vaporize 100 g of water at 100 °C to form steam at 100 °C?

    asked by Anonymous
  180. 7th grade

    What is onw way to increase soubility of sugar in water?

    asked by Juliana
  181. physical science

    How much heat is necessary to vaporize 100 g of water at 100 °C to form steam at 100 °C?

    asked by Anonymous
  182. physical science

    How much heat must be removed from 500 g of water at 0 °C to form ice at 0 °C?

    asked by Anonymous
  183. physical science

    An electric current heats a 225 g copper wire from 20.0 °C to 40.0 °C. How much heat was generated by the electric current? (ccopper = 0.093 cal/gm-deg)

    asked by Anonymous
  184. physical science

    A sample of silver at 20.0 °C is heated to 100 °C when 1000 cal is added. What is the mass of the silver? (csilver = 0.056 cal/deg-gm)

    asked by Anonymous
  185. chemistry

    A 24L sample of a gas at fixed mass and constant temperature exerts a pressure of 3.0 atm. What pressure will the gas exert if the volume is changed to 16L?

    asked by catherine
  186. Physics

    On a bright sunny day, the irradiance on the surface of the ocean is 1.6*10^17 photons cm^-2 s^-1. If k=0.02 m^-1 a)How much light is left at 15 m? b)at 75 m?

    asked by Krysten
  187. chemistry

    A common laboratory system to study Boyle's law uses a gas trapped in a syringe. The pressure in the system is changed by adding or removing identical weights on the plunger. The original gs volume is 50.0 ml when two weights are present. Predict the new

    asked by catherine
  188. Trig

    How would I do this problem? Verify that each equation is an identity. cos^2x+tan^2xcos^2x=1 the ^2 is just saying squared. ex.- cos^2x is cosine squared x

    asked by Jill
  189. chemistry

    A sample of argon gas occupies a volume of 950 mL at 25.0C. What volume will the gas occupy at 50.0C if the pressure remains constant?

    asked by catherine
  190. Physics

    At a spot in the ocean , the surface irradiance is 7.8*10^16 photons cm^-2 s^-1, and k=0.14 m^-1. At what depth does the euphotic zone end? (Find definition for euphotic zone and solve for z)

    asked by Krysten
  191. Physics

    Your airplane leaves 20 degrees north (linear velocity = 845 nm/h), heading to a point due north at 25 degrees north (linear velocity = 815 nm/h). You set the autopilot for due north and go to sleep. If your flight time is 30 mins, how far off in what

    asked by Krysten
  192. maths

    Theorem B: Taylor's Formula with Remainder ,? can someone please help me prove this theorem B for (a) the special case of n = 3, and (b) an arbitrary n.

    asked by sel
  193. Physics

    What is the instantaneous acceleration(both magnitude and direction) due to the coriolis force on an object moving at 160 m/s to the west located at 17 degrees south, 86 degrees west?

    asked by Krysten
  194. Math

    an envelope contains 20 bills in denominations of $1,$5,$10, the total of the envelope is $54. how many of each bill do i have

    asked by darryl
  195. Trig

    Verify that each equation is an identity. cos^2x+tan^2xcos^2x=1

    asked by Jill
  196. sunshine math-4

    mark hid a 10 bill inside his favorite book. he forgot the pages where he hid it. is the sum of the pages where the bill is hidden is 177, on what pages will mark find his money

    asked by Ivan
  197. PHY131

    a bullet is fired from a gun that is 2.0 meters above flat ground. the bullet emerges from the gun with a speed of 250 m/s. a) how long does the bullet stay in the air before it hits the ground? b) At what horizonatal distance from the firing point does

    asked by S.Strange
  198. inmmigration

    what are the changes the United States has made to policies concerning the treatment of Muslim and Arabic members of society?

    asked by Anonymous
  199. Math

    an envelope contains 20 bills in denominations of $1,$5,$10, there are two times as many $5 bills as there are$10 bills. the total of the envelope is $54. how many of each bill do i have

    asked by darryl
  200. Can anyone help me with a physics question?

    A water tank has a volume of 100m^3. A square pipe leading to a pump is designed to completely replace all water in 20 minutes. Caluclate the length of a side of the square if the water is travelling at 5.0m/s through the square pipe.

    asked by Rob
  201. chemistry

    How many moles of calcium carbonate can be disloved in .0250 moles of hydrocloric acis

    asked by stuart
  202. chemistry

    a 500.0 mL gas sample at STP is compressed to a volume of 300.0 ml and the temperature is increased to 35.0 C. What is the new pressure of the gas in pascals?

    asked by catherine
  203. maths

    how to find the terms through x^5 in the maclaurin series for? Hint: it may be easiest to use knownMaclaurin series and then perform multiplications, divisions, and so on. For example, tan x = (sin x)/(cos x). (1)f(x) = tan x, (2) f(x) = e^2 sin x (3) 1 +

    asked by sel
  204. Physics

    In a fit of pique, the Canadians fire a cannonball due south from vancouver (lat 49.2 degrees N) at a randomly picked city (39.4 degrees N). Assuming the cannonball takes 48 minutes to get there, by how far and in what direction will the cannonball miss?

    asked by Krysten
  205. math

    Nine dimes are what fraction if a dillor.... write the value of nine dimes using a dollor sign and a decimal point

    asked by jojo
  206. BIS 155 Data Analysis w/Spreadsheet

    How would I begin to compile data into useable data in using Excel?

    asked by Yolanda
  207. English

    1. She is good at dancing. 2. She is good at dance. (Which one is correct? Are both correct?) 3. I am a student at Class 1-1. 4. I am a student in Class1-1. 5. I am in Class 1-1. 6. I am a first year student in Class 1-1. 7. I am a first grader of Class

    asked by rfvv
  208. Biology - Pregnancy

    "If the ovaries were removed between the start of pregnancy and the second month then.....because....." "If the ovaries were removed after the second month....." I'm confused because I thought that once pregnancy begins, no more ovulation occurs until

    asked by Stuck
  209. math

    one kilometer is how many meters

    asked by jojo
  210. Chemistry

    What range of values for electrostatic potential is characteristic of strong acids? What range is characteristic of weak acids? Why is there a correlation between electrostatic potential and acid strength?

    asked by Joe
  211. Chemistry

    A buffer solution of volume 100.0 mL is 0.150 M Na2HPO4(aq) and 0.100 M KH2PO4(aq). Refer to table 1. (a) What are the pH and the pH change resulting from the addition of 80.0 mL of 0.0500 M NaOH(aq) to the buffer solution? pH pH change (include negative

    asked by Trixie