Questions Asked on
September 16, 2010

  1. chem class

    which of the following has the highest boiling point? a)C2Cl6 b)C2Br6 c)C2H6 d)C2F6 e)C2I6 i know its e, but why is that the answer? are all questions about boiling points similar? or they they have to do with intermolecular forces? i have a test soon on

    asked by RiChy
  2. physics

    A hot air balloon is descending at a rate of 2.4 m/s when a passenger drops a camera. (a) If the camera is 50 m above the ground when it is dropped, how long does it take for the camera to reach the ground? (s) (b) What is its velocity just before it

    asked by vonne
  3. Elements of Psychology

    I need help on these questions. My answers have the < by them 1. In a typical neuron, sheaths of fatty tissue called _______ surround the axon. A. terminals C. synapse B. dendrites D. myelin

    asked by Natasha
  4. Chemistry

    How do I calculate number of moles of K2C2O4 in 20mL of a saturated (300g K2C2O4.H2O per liter) solution....

    asked by Chan
  5. chemistry-electrochem

    Determine the equilibrium constant, Keq, for the reaction 5.3 10–19 18.30 1.7 1054 1.9 1018 5.7 10–55 this is an assignment question- as writen, no values, nothing. any help

    asked by lucylu
  6. Physics

    Richard is driving home to visit his parents. 125 of the trip are on the interstate highway where the speed limit is 65 . Normally Richard drives at the speed limit, but today he is running late and decides to take his chances by driving at 70. How many

    asked by Danny
  7. physics

    A 35-kg child starting from rest slides down a water slide with a vertical height of 20 m. What is the child’s speed a.)half-way down the slide’s vertical distance b.) three-fourths the distance (ignoring friction)

    asked by Crista
  8. algebra

    Solve the proportion x / 12 = 91 /84

    asked by avery
  9. Physics

    A bag of sugar weighs 4.00 lb on Earth. What would it weigh in newtons on the Moon, where the free-fall acceleration is one-sixth that on Earth? 1 N Repeat for Jupiter, where g is 2.64 times that on Earth. 2 N Find the mass of the bag of sugar in kilograms

    asked by Erica
  10. geometry

    using inductive reasoning finish the pattern and explain george,thomas,abe,alexander

    asked by jan
  11. Geomerty

    If UV = X+6 and UY = x - 1 Find YV. Y is the midpoint of U and V. Please show work.

    asked by Felicia
  12. molal

    the freezing point of ethanol (C2H5OH) is -114.6C. the molal freezing point depression constant for ethanol is 2.00C/m. what is the freezing point (C) of a solution prepared by dissolving 50.0 g of glycerin (C3H8O3, A nonelectrolyte) in 200 g of ethanol. i

    asked by lisa
  13. gr 12 physics NEED HELP PLEASE

    Vector A has a magnitude of 12.3 units and points due west. Vector B points due north. (a) What is the magnitude of B if A + B has a magnitude of 15.0 units? (b) What is the direction of A + B relative to due west? (c) What is the magnitude of B if A - B

    asked by Anonymous
  14. Chemistry, Solutions

    Two or more combined substances that do not react form a _________. solution mixture substance compound

    asked by Jason
  15. math

    what is the time halfway between 10:30 am and 3:00 pm?

    asked by Nina
  16. chemistry

    Sodium oxide reacts with water to produce sodium hydroxide. Suppose 12.7 g of sodium oxide is combined with 39.8 g of water. When the reaction is complete, all the sodium oxide has been consumed. According to the law of conservation of mass, which is a

    asked by Anonymous
  17. Algebra 2

    Can you help me set these up? 1.When 0.5cm was planed off each of the six faces of a wooden cube, its volume decreased by 169cm^3. Find its new volume. 2. The width, length, and diagonal of a rectangle are consecutive even integers. Find the integers

    asked by Jessica
  18. phyics

    The position of a 2.75 *10^5 N training helicopter under test is given by r = (0.020 m/s^3)(t^3)i + (2.2 m/s)(t)j - (0.060 m/s^2)(t^2) k Find the net force on the helicopter at t =5.0s. Express your answer in terms of i,j,k. Express your coefficient using

    asked by ami
  19. Chemistry

    Acids and bases react with one another to form compounds called ______? A. salts B. ions C. mixtures D. salts, ions, and mixtures

    asked by Jason
  20. chemistry

    Tritium (half-life = 12.3 y) is used to verify the age of expensive brandies. If an old brandy contains only the following fraction of the tritium present in new brandy, how long ago was it produced? 1/128

    asked by adrienne
  21. Physics

    A standing wave moves back and forth in a 150 cm long container with a frequency of 0.3 HZ. What is the velocity of the wave?

    asked by Joy
  22. Physics

    A sprinter starts from rest in a 100-meter race, accelerates to his full running speed of 10.3 m/s in 1.15 seconds (assume constant acceleration) and continues at that speed for the rest of the race. (a) How far did he run before attaining his full speed?

    asked by Phil
  23. physics

    In the movie"Speed" the bus jumps a bridge.Given that the bus is traveling at 31 meters/sec,and the distanceis 15 meters, and the timeis.48 seconds,what is the minium angle required for the bus to reach the distance?

    asked by Tom
  24. English

    Is there always both an antagonist and protagonist in a story or can there just be a protagonist. The book that I'm talking about is New shoes for Sylvia and I only think there is a protagonist

    asked by Melody
  25. Chemistry (really need help)

    so I have posted this before but this is with some wrok.. Heres the question... When ice melts, it absorbs 0.33 kJ per gram. How much ice is required to cool a 12.0 fluid ounce drink from 75°F to 35°F, if the heat capacity of the drink is 4.18 J/g·°C?

    asked by Sarah
  26. physics

    Two bicyclists, starting at the same place, are riding toward the same campground by two different routes. One cyclist rides 1500 m due east and then turns due north and travels another 1430 m before reaching the campground. The second cyclist starts out

    asked by john
  27. GPA

    I'm a junior in high school. I have a horrible 1.2 GPA at the moment. Is it even possible to raise my GPA to at least a 2.8 by the end of my senior year. (Its the beginning of my junior year right now.)

    asked by Kayla
  28. Math

    I have a venn diagram with two circles and some numbers floating outside of the circles. The question is add the missing labels. What does that mean? place the numbers that are floating inside the circle?

    asked by Dhwani
  29. Consumer Math Check

    1. Money paid to a worker as a reward for good service is called ____________. =a.)Tips b.)Commission c.)Piecework 2. A ____________ is a record of time a worker starts and ends each day. a.)Weekly timecard =b.)Daily log c.)Pay period 3. ____________ is

    asked by Ariel
  30. math

    You figure that you will buy property many times and you endeavor to work out a formula that will tell you the price of the land and the price of the buildings any time. So suppose the price for the land and buildings combined is S (for "sum") and the land

    asked by Sarah
  31. physics

    In college softball, the distance from the pitcher's mound to the batter is 43 feet. If the ball leaves the bat at 90 , how much time elapses between the hit and the ball reaching the pitcher?

    asked by Danny
  32. science

    Ammonia gas can be prepared by the reaction of a metal oxide such as calcium oxide with ammonium chloride. CaO(s) + 2 NH4Cl(s) 2 NH3(g) + H2O(g) + CaCl2(s) If 199 g of CaO and 300. g of NH4Cl are mixed, what mass of NH3can be produced?

    asked by Noel
  33. Math Problems

    1.)Kamman VanMarko Plumbing equipment sales Commission rate: 9 1/2% Annual pay: $17,496 Month's sales: $2,460 What is the monthly pay? a.)$1,691.70 =b.)$1,458 c.)$3,918 2.) Doreen Nathan Cosmetic sales Commission rate: 13 1/2% Month's sales: $4,230 What is

    asked by Ariel
  34. English

    I forgot to include the following sentences. Thank you very much in advance. 1)I had a very good holiday (OR I spent nice summer holidays??). I ate a lot of ice-cream(s) during my summer holidays. I finished my homework late (?) because I’m a lazy guy.

    asked by Franco
  35. math

    How many cans with a capacity of 3/8 gallons can be fille from 2 barrels of oil each containing 31 and one- half gallons?

    asked by Johnny Lee
  36. English Quick?

    Why is theme important? Is there a theme in every piece of literary writing?

    asked by Melody
  37. physics

    Are the nuclear fission power plants operating around the world today safe? How does the radiation from a nuclear power plant compare to other sources of radiation?

    asked by Anonymous
  38. economics

    Hey can someone tell me how to graph this in excel please. Thanks. Produce a chart in Excel showing TC and TR with Q on the horizontal axis. Have Q go from 0 to 15,000 units. Produce a second chart showing MC and MR with Q again on the horizontal axis.

    asked by Alexis
  39. math

    the area of a regulation tennis court is 2808 square feet use a coversion factor to find the area of a tennis court in square yards

    asked by nicole
  40. calculus

    Use the four-step process to find the slope of the tangent line to the graph of the given function at any point. (Simplify your answers completely.) f(x) = 2x^2 + 7x

    asked by dan
  41. english

    Is the word program a v/cv or double constanant?

    asked by Barb
  42. English

    Please check this paragraph The title is the first clue that this will be a tall tale. But Lucian’s fantasy explores not only outer space, but also the Elysian Fields, the geography of the Odyssey, and the interior of a giant whale. The title is opposite

    asked by Shamaila
  43. science

    what factors affect plant growth, i nkow light, water, and all the stuff but more things please, for my science project!:)

    asked by k
  44. English

    What is a creative title for my paper. I'm doing on theme for a novel. We can't use the title of the book as the title of our paper? I can't come up with anything.. Any suggestions would be helpful

    asked by Melody
  45. Math

    If Sandy usually earns $88 plus 11% sales each week. What if she earns $154 one week. What is the % sales she earned that week when she earned $154? Would the answer be 600?

    asked by Amy~
  46. physics

    A truck covers 40.0 m in 7.00 s while smoothly slowing down to a final velocity of 2.45 m/s.

    asked by J
  47. physics

    To find the height of an overhead power line, you throw a ball straight upward. The ball passes the line on the way up after 0.65 s, and passes it again on the way down 1.9 s after it was tossed. (a) What is the height of the power line? (m) (b) What is

    asked by vonne
  48. Math

    How many ounces of pure water should be added to 20 ounces of a 40 percent solution of muriatic acid to obtain a 30 percent solution of muriatic acid? How to solve

    asked by A
  49. Calculus

    The value of y changes by 3 units when x changes by 0.1 unit. About how fast is y changing?

    asked by Joanna
  50. Physics

    A hiker shouts towards a vertical cliff 465 m away. The echo is heard 2.75 s. later. The wavelength of the sound is 0.750 m. What is its frequency?

    asked by Joy
  51. Physics

    A 1100 kg car is moving toward the north along a straight road at a speed of 20.0 m/s. The driver applies the brakes and the car comes to rest in a distance of 140 m. (a) If the road is completely level, what is the constant force applied to the car to

    asked by Phil
  52. algebra

    The difference of a number and 7 is the same as 45 less the number. find the number

    asked by Joe
  53. chemistry

    how many CO molecules do you need to react with water

    asked by you
  54. College Chemistry

    Using the values for the heat of fusion, specific heat of water, or heat of vaporization, calculate the amount of heat energy in each of the following: * calories removed to condense 125g of steam at 100 degree C to cool the liquid to 15 degree C * joules

    asked by Kell
  55. Physics

    A ball of mass m1= .250 kg and velocity v01 = + 5 m/s collides head-on with a ball of mass m2= .800 kg that is initially at rest (v02 = 0 m/s). No external forces act on the balls. If the collision is elastic, what are the velocities of the balls after the

    asked by zevi
  56. ALGEBRA...[HELPP!!]

    Arianna kicks a soccer ball off the ground and in the air with an initial velocity of 42 feet per second. Approximately what maximum height does the soccer ball reach?

    asked by james
  57. 5th grade English

    The quartet sang several Irish songs. Is several and Irish the adjectives in the sentence.

    asked by Brady
  58. Chemistry

    how many electrons are in 3.70 x 10^23 atoms of carbon 13?

    asked by Emily
  59. Algebra

    Juan is 8 years older than his sister Rosa.One day, Juan tells Rosa he is twice her age, but will only be twice her age for one year.To figure out the ages of Juan and Rosa you must first identify the variables. What are the variables in this problem?

    asked by Mariah
  60. Chemistry

    What types of elements are involved in metallic bonding? A. noble gases B. metals and non-metals C. non-metals only D. metals only

    asked by Jason
  61. science

    What is the distance between two neighboring bunches of molecules?

    asked by Mike
  62. algebra

    i am having problems with this current equation. 10/(5+x)= 12 so far i have tried to multiply both sides by x+5 but then my answer is x = 4.16... and im thinking its wrong. Thanks in advance and if possible answer with a explaination would be greatly

    asked by Anonymous
  63. Physics

    A piano has been pushed to the top of the ramp at the back of a moving van. The workers think it is safe, but as they walk away, it begins to roll down the ramp. If the back of the truck is 1.3 above the ground and the ramp is inclined at 30, how much time

    asked by LP
  64. Physics

    A ball is dropped from an undetermined height and bounces to 5 meters. To what height will it bounce if dropped from a height 1 meter higher?

    asked by Tony
  65. Business

    Define each of the following methodologies for IT project management: prototyping, rapid applications development (RAD), joint applications development (JAD), and systems development life cycle (SDLC). What are the advantages of each methodology? Which one

    asked by Logan
  66. English

    Paul Revere, what are some major contributions that he did for the government

    asked by Jay
  67. Algebra 2

    factor 5x^2-35+60

    asked by Alex
  68. algebra

    write an expression for the area of sidewalk using subtraction, overall area is 10 ft by 12 ft. sidewalk is 4ft by 12 ft.

    asked by mikaila
  69. english

    If you have read rkki-tikki-tavi Then you can help me . 1.How dose the first meeting between Rikki and the cobras make u want to read further ? 2.Which battle occurs at the climax? 3.How dose the story end ? How are the loose ends tied up and the story

    asked by lily S.
  70. math

    5-x-x=-1 will someone please tell me how do do this problem?

    asked by j
  71. Trigonometry

    Given Triangle ABC: Right Triangles 1. If a = 6 and

    asked by Anonymous
  72. algebra equation

    How do I find a formula for the area of a circle with a circumference c?

    asked by mike
  73. geometry

    d is the midpoint of line CE, AE=49, AC=3x-46, BC=5, and BD=x. Find AD

    asked by Maria
  74. math

    Write and solve an equation to model the situation: two friends are renting an apartment. they pay the landlord the first months rent. the landlord also requires them to pay an additional half of a month's rent for a security deposit. the total amount they

    asked by j

    What is business commerce?

    asked by confused by adverbs and adjectives
  76. Calculus 1

    According to Ohm's law, the voltage V, current I, and resistance R in a circuit are related by the equation V=IR, where the units are volts, amperes, and ohms. Assume that voltage is constant with V=12V. Calculate: The ROC of I with respect to R for the

    asked by Bill
  77. physics

    The equation of motion for constant non-zero acceleration a which gives the dependence of the velocity v? ...on the distance travelled is: (Use x0, v0 for initial position and velocity) answer should be v^2=

    asked by Anonymous
  78. Chemistry

    Suppose you had a mixture consisting of 20.0 g of compound A and 20.0 g of compound B dissolved in 100.0 mL of water at 95 degrees C. Suppose further that only 1.00 g of A are soluble in 100.0 mL of water at 5 degrees C but 15.0 g of B are soluble in 100.0

    asked by Lila
  79. physics

    The equation of motion for constant non-zero acceleration a which gives the dependence of the velocity v? ...on the distance travelled is: (Use x0, v0 for initial position and velocity) answer should be v^2=

    asked by Anonymous
  80. Math

    Find a formula for the transformation that rotates -60 degrees about 1-3i

    asked by John
  81. criminal justice 220

    how do you define ehtics? How do they differ with attorneys?

    asked by llisa
  82. Algebra

    A vehicle uses 1 tablespoon of gasoline to drive 125 yards. How many miles can the vehicle travel per gallon? Round your answer to the nearest mile. (hint: There are 256 tablespoons in a gallon)

    asked by David
  83. Physics

    I have a problem with an atwood's machine problem. i have three tensions where T1 and T2 are on the left and T3 is on the right. Bottom left corner is block 2kg with T1 then another block 2kg with T2 on the left side. On the right side i have a block of

    asked by Josh
  84. algebra

    4(3x+1)-7x = 6+5x-2

    asked by Anonymous
  85. English

    Thank you for your last correctons. Here are some sentences about summer holidays I'd really need you to check.Are the alternatives in parenthese possible? 1)After the end of school I spent two weeks to relax (OR relaxing). On June the first my friend and

    asked by Franco
  86. physics

    A .4 kg ball is attached to a spring with spring constant 12 N/m. If the ball is pulled down .2m from the equilibriu, and released, what is its maximum speed while it oscilates?

    asked by Willie
  87. physics

    On your first trip to Planet X you happen to take along a 200g mass, a 40.0 cm long spring a meter tick and a stop watch. You're curious about the acceleration due to gravity on Planet X, where ordinarty tasks seem easier than on earth, but you cant find

    asked by Willie
  88. Math

    How to solve: There are 40 chickens and cows in the farmyard. There are 100 legs in all. How many are cows and how many are chickens

    asked by Alison
  89. Physics

    What is the difference between 110, 220 and 440 volts. How does amperage play a role with voltage

    asked by Jim
  90. French

    I want to translate this phrase into French: "When I can no longer create anything, I'll be done for." -Coco Chanel How would I translate the expression "I'll be done for"?

    asked by Stuck
  91. Physics

    What is Ohm's law. Why is it a law and not a theory

    asked by Jim
  92. math

    how can you tell if a fraction is the lowest term?

    asked by -----
  93. math

    I have been asked to identify the "situation" in a story problem. What does that mean?

    asked by michelle
  94. World Geography

    Which statements describe the geographic theme of regions? a. Different types of regions have little or no effect upon each other. b. Climate regions are defined by their average temperature and their political system. c. Physical regions can be formed by

    asked by Courtney
  95. social studies

    the Norhtern Hemisphere is located between ?

    asked by alicia
  96. MATH


    asked by Johnny Lee
  97. math

    What is the population of Europe in 2000? (b) What is the total area of Europe?

    asked by davis
  98. Math

    what percentage is 14 out of 60?

    asked by Bee
  99. physics

    how does the graph of velocity look like when staitionary?

    asked by Anonymous
  100. science

    what is science????

    asked by tammi
  101. acc 422

    I3-1: The Red Sky company is a wholesale company that purchases items from manufacturers and sells them to retail establishments. On December 31, 2010 Red Sky had the following in ending inventory: Product Code Quantity Cost Each Current Replacement Cost

    asked by c m
  102. math


    asked by sophie
  103. Accounting

    The proposed 'asset' investment for a new restaurant is $2,000,000. The restaurant is expected to generate cash inflows of $300,000 during its 'project' life of ten (10) years. The Weighted Cost of Capital is 10%. What is the Present Value of a 'cash'

    asked by Kathy
  104. AP Language and Composition

    I am writing a paper on the book The Great Gatsby by F. Scott Fitzgerald and my thesis is "In the Great Gatsby, F. Scott Fitzgerald shows us that material obsession often leads to the decay of ones soul." Does anyone know anywhere i can find sources

    asked by Amanda
  105. math0301

    How do i translate this phrase into algebric expression and how do i label. Twice the difference of a number and eight

    asked by mar
  106. Business

    Before the UCC and the UCITA, what was one of the first, and most significant, of the U.S. government's attempts to promote uniformity in commercial laws from state to state?

    asked by Miranda
  107. accounting 101

    Preparing A Journal Entry. I need help telling whether it's accounts receivable, rent expense, etc. Also determining whether it's debit or credit. I understand everything else like the T-account and Trial Balance, just determining what they are is what I'm

    asked by James
  108. 3rd grade math

    Using four different digits, what is the least sun you can get when you add two 2-digit numbers? Write your problem.

    asked by Michelle
  109. math

    n=1/a-1/b solve for b please show all steps

    asked by craig
  110. white

    did the populist party succeed or fail

    asked by John
  111. math

    divide 15 by 2 and express your answer in three ways?

    asked by Joey
  112. 8th grade

    Unscrambel orewp

    asked by Anonymous
  113. physics

    The force exerted by the wind on the sails of a sailboat is 340 N north. The water exerts a force of 150 N east. If the boat (including its crew) has a mass of 340 kg, what are the magnitude and direction of its acceleration?

    asked by bobby
  114. CHEM

    The vapor pressure of pure water at 25 °C is 23.8 torr. Determine the vapor pressure (torr) of water at 25 °C above a solution prepared by dissolving 35 g of urea (a nonvolatile, non-electrolyte, MW = 60.0 g/mol) in 75 g of water. where have i made a

    asked by BEN
  115. algebra

    solve each equation. | x+1\2 | = 1 dont know what to do

    asked by samadhi
  116. physics

    A 5.0 gm marble is fired vertically upward using a spring gun. The spring must be compressed 8 cm if the marble is to just reach a target 20 m above the marble’s position on the compressed spring .(a) What is the change in the gravitational potential

    asked by sunny
  117. Math - Rates of change using equations

    s(t)= -4.9t^2+15t+1 - write an expression to represent the average rate of change over the interval '1' less than or equal to 't' less than or equal to '1+h'

    asked by Shaila
  118. Economics

    A television station is considering the sale of promotional DVDs. It can have the DVDs produced by one of two suppliers. Supplier A will charge the station a set-up fee of $1,200 plus $2 for each DVDs; supplier B has no set-up fee and will charge $4 per

    asked by Anonymous
  119. Math

    Can anybody help me with this? I don't understand?: Tim paints 1 fence every two minutes. Moby paints 14 fences every two minutes. How many minutes will it take them to paint the fences, working together, if they have 150 fences to paint.

    asked by Anonymous
  120. art/101

    Review Ch. 3 of A World of Art. Considering examples on pp. 52–54 in Ch. 3 of your text, what performance art might you imagine executing in a public space? What would be your piece’s purpose and content?

    asked by stephaine
  121. Trigonometry

    Explain why {y||y| ¡Ü 1} is the same as [-1,1].

    asked by Pauline
  122. Algebra 2

    The hypotenuse of a right triangle is 25m long. The length of one leg is 10m less than twice the other. Find the length of each leg. Can you tell me how to set this up? I can do the math from there.

    asked by Jessica
  123. geometry

    given a circle with a dimeter of 4, what is the circumference?

    asked by ayla
  124. ap world history

    How did the Gupta Adminstrative practices differ from the Maurya

    asked by Alexis Finley
  125. geometry

    the area of a circle is 28.26 square centimeters. what is its (use 3.14 pie)

    asked by brandon
  126. algebra 2

    5a-b=17 3a+2b=5

    asked by LaDarrien
  127. ap world history

    How did India fit into the trade along the Silk Road?

    asked by Alexis Finley
  128. ap world history

    In what ways did the development of trade and manfacturing impact the Caste system

    asked by Alexis Finley
  129. High school economics

    Where might you take someone from China or Cuba to show them the differences between the economy in the US and their country?

    asked by Jason
  130. College Economics

    Hey can someone tell me how to graph this in excel please. Thanks. Produce a chart in Excel showing TC and TR with Q on the horizontal axis. Have Q go from 0 to 15,000 units. Produce a second chart showing MC and MR with Q again on the horizontal axis.

    asked by Alexis
  131. math

    m of angle 7=2x + 10 m of angle 3=3x - 15

    asked by Nick
  132. 9th grade

    find the domain and the range of the relation age of person 65,36,36,29 books to read 42,37,37,17

    asked by teri
  133. 11th grade

    need help with these problems can anyone help me- 2x-1=y 2x=y-6 3y=-6x x+4y=12 Thank you

    asked by Felicia
  134. gography

    what is a demographic transition model???

    asked by alisha
  135. composition writing

    write several sentences using five different pronouns describing interaction with a friend about credit card

    asked by john
  136. Physics

    If you are 2.0 s from being directly under a window that is 11 m above the sidewalk your standing on, and someone throws a water ballon will you get hit?

    asked by Bird
  137. Math - Rates os change

    a) Describe a graph for which the average rate of change is equal to instantaneous rate of change for its entire domain. Describe a real life situation that this graph could represent. b) Describe a graph which the average rate of change between two points

    asked by Shaila
  138. maths

    what is mean of these numbers 2,10,8,6,10,5,6,8?

    asked by anonymous
  139. science

    - bad - ethics - explain - good - limited - observed - scientific methods - tested Science is _________ by what its can ________. For a question or problem to be studied through________, there must be variables that can be ________, meausured, or belief

    asked by kayla
  140. sunshine mateh

    put one digit from {1,0,3,7} in each box to get the correct long division problem

    asked by Emily
  141. physics

    three parachutist have reached terminal velocity at the same distance above the ground below. One at 50kg anoher at 40 kg an 75kg from fastest to slowest what is there total terminal velocities.Then from longest to shortest time rank their order in

    asked by ayssa
  142. MATH


    asked by JACK
  143. math

    If you usually burn after 1/2 hour expose to sun, you can lenghten the time you are in the sun to three hours by applying SPF number 6. how long could a person who burns after 1/4 hour stay in the sun using SPF 15 lotion?

    asked by Joey
  144. math please help!!!!!!!!!!!!!!!!!!!!!

    There are 7 marbles in a circle. How could you get all 7 marbles ito a box by moving them in groups of only 2 or 3 at a time? You must follow this rule: Groups of 2 may ONLY move right,and groups of three may ONLY move left. How could you move all 7

    asked by CeCe 4gr
  145. english

    Writing errors, such as those identified in the readings for this week, may influence the way a reader interprets your writing. A résumé that is marred by grammatical errors, for example, may prevent a job candidate from progressing to the interview

    asked by Anonymous
  146. Algebra

    Need help,i need to find the ordered pair. 3x+2y=40 and 2x + 3y =230/19 then i get stuck. please show the steps.

    asked by Jenniah
  147. Geometry

    If M is midpoint of line BK, BM = 5x + 9, MK = 3x + 33 then what does x equal. What does BK equal.

    asked by Nicky
  148. Math

    I don't know if I suppose to do LCM or other?I'm going to need help. Beyonce visits her parents every 6 days and Jay-Z vists his parents every 9 days. When will it be the first day they visit there parents on the same day?

    asked by Kelly
  149. L.A.

    what are different types of poetry?

    asked by yuku
  150. Medical terminology/Biochemistry

    A physican listen's to a patient's chest, and then examines the patient's eyes. the eyes are located what to the chest

    asked by Shameka
  151. math

    whats a transition word for the blank? Sara has 45 cups of flour.she needs 3/5 more cups.______________ cups of flour does she need?

    asked by mya
  152. english 3

    In detail, explain how the flashbacks to Edna's past function. How does her father compare to the other men in her life?

    asked by the awakening
  153. Math

    what is 105,219 rounded to nearest hundres thousand

    asked by Misty
  154. math

    3x over 5- x = x over 10 - 5

    asked by Columba
  155. math check

    1.)Jenna earns $16,250 per year. She pays 6% of her earnings to her pension fund. Her health insurance costs $81.50 per month and she has $55 taken from her monthly paycheck for savings. What are her total deductions for the year? =a.)$2,613 b.)$1,625

    asked by Ariel
  156. English

    Posted by rfvv on Wednesday, September 15, 2010 at 10:49pm. Posted by rfvv on Wednesday, September 15, 2010 at 10:00pm. 1. Tell me more about rice cake. 2. Tell me a lot about rice cake. (What is the part of speech of 'more'? A noun or an adverb? Are both

    asked by rfvv
  157. college algebra

    Find the arc of the following: f(x)=x^2-8x+15 from x=4 to x=6

    asked by Travis
  158. Economics

    Why has China begun an economic shift towards a free enterprise system?

    asked by Jason
  159. 7th grade Hawaii

    What can the public do to help get more land zoned for agriculture? How many farmer's markets are in Hawaii? Do local farmers struggle to make a living? How many farmers are in Hawaii (or on each island)?

    asked by alisha
  160. Math

    For what values of a and b will these two expression be equal? (a+b)^2 and a^2 + b^2

    asked by Shuna
  161. Eth/125

    Define Orientalism and list two to three charateristics of orientalism?

    asked by carla
  162. physics

    A truck covers 40.0 m in 7.00 s while smoothly slowing down to a final velocity of 2.45 m/s. Find the truck's original speed. Find its acceleration.

    asked by J
  163. Physics

    { The subscripts are in curly brackets } A mass m is at rest on a horizontal frictionless surface at t=0. Then a constant force F{0} acts on it for a time t{0}. Suddenly, the force doubles to 2F{0} and remains constant until t=2t{0}. Determine the total

    asked by Phil
  164. physics

    Two balls are dropped, one from height H and the other from a height of 4H. How far apart should they be dropped (time wise) to hit the ground at the same time.

    asked by Joey
  165. physics

    A steam catapult launches a jet aircraft (from rest) from the aircraft carrier John C. Stennis, giving it a speed of 160 mi/h in 2.40 s. Find the average acceleration of the plane. Assuming that the acceleration is constant, find the distance the plane

    asked by J
  166. math

    Assume that the student has a cup with 14 writing implements: 7 pencils, 5 ball point pens, and 2 felt-tip pens. How many such subcommittees are possible if each subcommittee must contain at least 1 and no more than 2 Republicans?

    asked by Sha
  167. calculus

    Assume your business associate owes you $13650. Also assume they offer either $12020 now or $ 1950 per year for 7 years, starting now. Assume a 5.6% market interest rate, compounded continuously. How much would you have at the end of 7 years if you choose

    asked by molly anne
  168. MATH

    Axia College Material Appendix C Starting a Business Starting your own business can be exciting and daunting at the same time. Businesses use math when managing finances, determining production levels, designing products and packaging, and monitoring

    asked by Anonymous
  169. physics

    Races are timed to an accuracy of 1/1000 of a second. What distance could a person rollerblading at a speed of 8.5 m/s travel in that period of time?

    asked by Claudia
  170. Math

    A square is folded in half to form a rectangle. If the resulting rectangle has a perimeter of 15 inches,what is the are of the original square?HELP...please?

    asked by Sheila
  171. Math Word Problem

    A metra commuter train leaves Union Station in Chicago at 12 noon. Twp hours later an Amtrak train leaves on the same track, traveling at an average speed that is 50 miles per hour faster than the Metra train. At 3PM the Amtrak train is 10 miles behind the

    asked by amy
  172. calculus

    assume the half-life of the substance is 31 days and the initial amount is 183.9 grams. (a) Fill in the right hand side of the following equation which expresses the amount A of the substance as a function of time t (the coefficient of t in the exponent

    asked by trace
  173. math 115

    h(x) = 19-x when x is 5 and when x is -5 I need to write and expression so is this the right way? h(x)=19 h(5)x19 h(5)x 19=-5

    asked by Sydney
  174. chemistry

    What mass of H2O would be produced during a combustion analysis of .43213 g of ephedrine?

    asked by Oodle
  175. physics

    A certain freely falling object requires 1.25 s to travel the last 35.5 m before it hits the ground. From what height above the ground did it fall?

    asked by Claudia
  176. Math

    This is also another problem that I'm having trouble on. A motorboat can maintain a constant speed of 16 miles per hour relative to the water. The boat makes a trip upstream to a certain point in 20 minutes; the return trip takes 15 minutes. What is the

    asked by amy
  177. Ethics

    How there can be an ethics which does not focus on right action? can anyone help me figure out what this question means and/or how to answer it? thanks in advance!

    asked by sha
  178. 6th grade math

    Find three pairs of positive fraactions whose product is 15/56

    asked by Steve
  179. math/115

    f(x) = 2x - 14 Find f(3) and f(-3). f(3)=2 -14=7 f(3)=2+14 is this correct

    asked by Sydney
  180. math

    an estate valued at $62,000 is left by a will as follow:to each of two grandchildren a certain sum,to the son twice as much as to the two grandchildren together,and to the widow $2,000 more than to the son and granchildren together. How much goes to each?

    asked by Kaylen
  181. english

    what were the two images paine uses in the first 10 lines of the crisis. what kinds of poeple does paine identify thes images? why are these images appropriate

    asked by ana
  182. government

    what is the framers most significant modification of traditional doctrine?

    asked by ryan
  183. english

    What are the imagery's in THomas Paine The crisis and what is important about these imagery.

    asked by Mary
  184. Physics

    A uniform electric field of magnitude 370 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 2.70 cm. (a) What is the work done by the field on the electron? J? (b) What is the change in

    asked by Max
  185. physics

    A student wants to determine the coefficients of static friction and kinetic friction between a box and a plank. She places the box on the plank and gradually raises one end of the plank. When the angle of inclination with the horizontal reaches 25°, the

    asked by Anonymous
  186. 5th grade

    haretown and tortoiseville are 27miles apart. Hare travesl the distance from haretown to tortoiseville at the rate of 7mph. Tortoise travels the distance from tortoiseville to haretown at the rate of 2mph. If both set out at the same time, how many miles

    asked by tryston
  187. CP Biology

    At what temperate are potassium nitrate and potassium chloride equally soluble?

    asked by Thomas
  188. physics

    A hockey puck moving due east with speed 1.00 m/s collides with an identical puck moving 40 degrees south of west with speed 2.00 m/s. After they collide, the first puck is moving south with speed 1.50 m/s. What is the direction and speed of the second

    asked by Jess
  189. Physics

    A 60 kg block slides along the top of a 100 kg block with an acceleration of 4.0 m/s2 when a horizontal force F of 325 N is applied. The 100 kg block sits on a horizontal frictionless surface, but there is friction between the two blocks.

    asked by Heather
  190. chemistry

    What is the concentration (in molarity) of acetone in a solution prepared by mixing 11 mL of 4.0 M acetone, 16 mL of 0.02 M Br2, 11 mL of 1.0 M HCl, and 16 mL of water?

    asked by elizabeth
  191. please chem help

    What is the ratio of the activities of Zn 2+ and Pb 2+ in a solution that is in equilibrium with respect to sphalerite and galena?disregard hydrolysis effect

    asked by moon
  192. please chem help

    What is the ratio of the activities of Zn 2+ and Pb 2+ in a solution that is in equilibrium with respect to sphalerite and galena?disregard hydrolysis effect

    asked by moon
  193. please chem help

    What is the ratio of the activities of Zn 2+ and Pb 2+ in a solution that is in equilibrium with respect to sphalerite and galena?disregard hydrolysis effect

    asked by moon
  194. please chem help

    What is the ratio of the activities of Zn 2+ and Pb 2+ in a solution that is in equilibrium with respect to sphalerite and galena?disregard hydrolysis effect

    asked by moon
  195. calculus

    Choice 1: Payments of $ 2600 now, $3000 a year from now, and $3450 two years from now. Choice 2: Three yearly payments of $ 3000 starting now. Interest is compounded continuously. (a) If the interest rate on savings were 4.76 %,which would you prefer? (b)

    asked by nic
  196. 8th grade

    how to find common factors and common multiples for prime factorization.

    asked by kendra
  197. physics

    if you are an observer moving at 3.2 m/s towards an object that is moving toward you at 1.4 m/s, what is the relative velocity of the object moving toward you?

    asked by jacob
  198. math

    belle bought packages of beads for her project. ben bought twice as many packages as belle. micalla bought three times as many packages as belle. altogether, they bought 24 packages of beads. how many packages did each person buy?

    asked by Anonymous
  199. Science

    Dust is often light in color, while soot from fires is generally dark. What would happen to the amounts of solar radiation reflected and absorbed if a large amount of light-colored dust was added to the air? What if a large amount of dark soot was added?

    asked by Bobert
  200. Chemistry

    If you had an IR source in an otherwise dark room, would you be able to influence the nightlight to turn off? What about if you had a UV source?

    asked by Morgan
  201. art

    what are examples of "sacred cows" in the U.S. today need some new ideas I already have the dollar.

    asked by Anonymous
  202. chemistry

    The speed of light in a vacuum is 2.998 108 m/s. What is its speed in each of the following units

    asked by john
  203. Math

    Hey can anybody please help me with this? Im stuck? I got the first part right, but I don't really know. Ok here's the problem: Annie kept track of the cars she saw on the highway? She saw twice as many Toyotas as Skyalks. The number of Pintos was eight

    asked by Anonymous
  204. math 115

    find (-4) when f(x) = 4-2x f(-4)+4-2 f(-4)=-2 Is that correct I am having a hard time with this and I know it so easy my brain is frozen...

    asked by Sydney
  205. science

    how does air pressure affect air density?

    asked by sam
  206. english

    what isd a compundpreficate

    asked by Anonymous
  207. chemistry

    if you have 5 moles of conjugate acid, 2 moles of base, and 2 moles of acid. What is the dissociation constant for his reaction and the temperature is 30 degree celcius?

    asked by Josie
  208. science

    why are dust particles and other particles necessary for percipitation?

    asked by sally
  209. math

    i have 3 pints oil and 12 gallons of gas,each lawn mower uses 0.5 pints of oil and 1.5 gallons of gas. How many days can she mow lawns?

    asked by ellen
  210. Biology 9th grade

    How do you describe homeostasis?

    asked by Brianna
  211. social studies

    how do you benefit the freedoms constitution? can you help me pout with the question

    asked by kayla
  212. IT210

    When building a house, a structured, modular approach is better than a haphazard approach. Explain how a structures approach relates to developing programs and why using an organized approach is important. Post a simple pseudocode, coding example or a

    asked by Anonymous
  213. math

    Jill has four of her five game scores: 8,6,6,3 Her average score for the five games is 6 points. What is the fifth game score?

    asked by Anonymous
  214. biology

    why is the early christian tomb painting important to the history of art, what's it's influence, what is it's sugnuficance, why is it impt to us today?

    asked by esther
  215. Algebra 2

    how do i factor: (p+q)^3 - (p-q)^3

    asked by Jessica
  216. art

    what two colors are --- when they're directly across from each other ont he color wheel and share no common colors

    asked by Anonymous
  217. Math

    tyler is looking at a map. he wants to stop at 3 towns on highway 57. Town a is 15 miles from town b. Town A is 26 miles from town c. Town b is between towns a and c. how many miles are between towns b and c?

    asked by Joe Joe
  218. art

    why is the early christian tomb painting important to the history of art, what's it's influence, what is it's sugnuficance, why is it impt to us today?

    asked by aimee
  219. ss

    how do you benefit from the freedoms of the constitution?

    asked by kayla
  220. English

    Thank you very much for all. Here are some more sentences I'm not sure of. 1) My family is made up of/composed of/formed by three people: my father, my mother and I (or me?) 2) My family consists of three people. In my family there are three people. 3) I

    asked by Franco
  221. Math

    State the Domain and show work. y = x + 2 / x^2 - 4x - 12

    asked by Jack
  222. math

    3.9-7 ?

    asked by kay
  223. Chemistry

    If 8.00 kJ of heat are added to 200. g of water at 20.0 ◦C, what is the final temperature of the water

    asked by Ponyboy
  224. math

    the students are selling tickets to the school fair. all tickets cost the same amount. carly sold 3 tickets for a total of $9. Karen sold 6 tickets for a total of $18. brendan sold 4 tickets for a total of $12. what is the price per ticket and the total

    asked by Joe Joe
  225. physics

    Two bicyclists, starting at the same place, are riding toward the same campground by two different routes. One cyclist rides 1500 m due east and then turns due north and travels another 1430 m before reaching the campground. The second cyclist starts out

    asked by john
  226. algebra

    Which has a Unique solution, No solution, or infinitely many solutions? 1. 2X + 3 = 9 2. 9X+ 2 = 9X+ 2 3. (1/2X+3) = (1/3x+9) 4. (x+2)(x+3) = x*x (x squared) + 5x + 6 5. 2(2x+3) = 4x+6 my guess is 1. unique 2. no 3. unique 4. unique 5. infinite 6. infinte

    asked by Pam
  227. 8th grade

    what role does heat plays in chemical changes?

    asked by Kipper
  228. physics

    An astronaut on Neptune drops a rock straight downward from a height of 0.95 m. If the acceleration of gravity on Neptune is 11.2 m/s2, what is the speed of the rock just before it lands? (m/s)

    asked by jack
  229. math


    asked by kala
  230. physics

    A hot air balloon has just lifted off and is rising at the constant rate of 1.8 m/s. Suddenly, one of the passengers realizes she has left her camera on the ground. A friend picks it up and tosses it straight upward with an initial speed of 11.2 m/s. If

    asked by jack
  231. English Help

    Plz check this paragraph . “A true story ” is a Lucian‘s master piece in which he explore the outer space .It has been never written such kind of scientif theory that anticipated modern fictional themes. Lucian seems to be a versatile writer of his

    asked by Shamaila
  232. math

    Use each digit 3,7,1,5 once to write a number that rounds to the number given. 1.2,000 2.3,500 3.6,000 4. 7,320

    asked by Anonymous
  233. geography (grade 6)

    why is that the united states has had a much more varied processing and manufacturing history than Canada.

    asked by Sheila
  234. history

    who was the leader of urak?

    asked by Anonymous
  235. college

    what multiplies 225 and get answer 30 but what do you add together and get 225

    asked by Anonymous
  236. algebra

    how do I write7,375 in expanded form using power of 10 and exponenets

    asked by Scott
  237. math

    (2+3)+(3+4) = (3+4)+(2+3) does this equation demonstrate the commutative property? why or why not?

    asked by Joe Joe

    Two bicyclists, starting at the same place, are riding toward the same campground by two different routes. One cyclist rides 1500 m due east and then turns due north and travels another 1430 m before reaching the campground. The second cyclist starts out

    asked by JENNA
  239. College Algebra

    The problem is to find the domain of 2x+7 / x^3-5x^2-9x+18. I know that x^3-5x^2-9x+18 cannot = 0. What I can't remember is how to solve x^3-5x^2-9x+18 ≠ 0. Thanks!

    asked by Mary
  240. Physics

    A 1100 kg car is moving toward the north along a straight road at a speed of 20.0 m/s. The driver applies the brakes and the car comes to rest in a distance of 140 m. (a) If the road is completely level, what is the constant force applied to the car to

    asked by Phil
  241. math

    what is the answer of 3x^2 - 5x?

    asked by Bobby
  242. physics

    A truck is stopped at a stoplight. When the light turns green, it accelerates at 2.5 m/s². At the same instant, a car passes the truck going 15 m/s. Where and when does the truck catch up with the car? First I found out how long it took the truck to reach

    asked by john
  243. math

    How do I find the area in square yards, using the distributive property, of a rectangular lot - no numbers given. I'm calling the length c and the width d.

    asked by Kristen
  244. math

    2/3(7/8 - 4x) - 5/8 is greater than 3/8 What is X?

    asked by Anonymous
  245. 6th grade Math

    Please help me solve. (3y+2y)-1y+7=51

    asked by Hayden
  246. business

    Please I need help with this question.. What are some controls that companies use to protect their assets?

    asked by Mark
  247. chemistry

    A 281 lb fullback runs the 40 yd dash at a speed of 23.0 ± 0.1 mi/h.(a) What is his de Broglie wavelength (in meters)?(b) What is the uncertainty in his position? i determined the wavelength correctly, but how do you determine the uncertainty

    asked by bob
  248. chemistry

    what happens when sodium nitrate and copper hydroxide are heated in a boiling water?

    asked by hailey
  249. math

    an airplane flew a distance of 650 km at an averange speed of 300km/ much time did the flight take?

    asked by lola