Questions Asked on
October 28, 2009

  1. chemistry

    Calculate the delta H for the reaction N2H4(l)+ O2(g) --> N2(g) + 2H20(l) Given the following data: 2NH3(g) + 3N20(g) --> 4N2(g) + 3H20(l) N20(g) + 3H2(g) --> N2H4(l) + H20(l) 2NH3(g) + 1/2O2(g) --> N2H4(l) + H20(l) H2(g) + 1/2O2(g) --> H20(l)

    asked by kilo
  2. Physics

    A 1500kg car skids to a halt on a wet road where μk= 0.53. How fast was the car traveling if it leaves 62-m-long skid marks?

    asked by Angela
  3. physics

    Suppose a 65-kg boy and a 45-kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface. If the acceleration of the girl toward the boy is 3.0 m/s2, find the magnitude of the acceleration of the boy toward the girl.

    asked by Liz
  4. Literature

    I have to write a book review on a captivity story that I've read. The instructions are: 'Choose a captivity story you know or have read, and share your findings about it in the form of a book review. Summarize the reason for the captivity, the main events

    asked by mysterychicken
  5. Physics

    14. Which of the following wavelengths will produce standing waves on a string that is 3.5 m long? a. 1.75 m b. 3.5 m c. 5.0 m d. 7.0 m

    asked by Sean
  6. physics

    the speed of the fastest pitched baseball was 45 m/s, and the ball's mass was 145 g. (a) What was the magnitude of the momentum of this ball, and how many joules of kinetic energy did it have? (b) How fast would a 57 gram ball have to travel to have the

    asked by sarah
  7. physics

    William Tell shoots an apple from his son's head.The speed of the 125-g arrow just before it strikes the apple is 25.0m/s, and the time of impact it is travelling horizontally.If the arrow strikes in the apple and the Arrow/Apple combination strikes 8.50m

    asked by Ryan
  8. Physics-circular force

    A coin is placed 11.0 cm from the axis of a rotating turntable of variable speed. When the speed of the turntable is slowly increased, the coin remains fixed on the turntable until a rate of 31 rpm is reached, at which point the coin slides off. What is

    asked by Anonymous
  9. college

    Assume you are performing the calibration step of Experiment 8 and you begin with 80 g of water at 20 oC and 80 g of water at 80 oC. After adding the two portions of water into your calorimeter setup and following the procedure outlined in the experiment,

    asked by Jim
  10. general chemistry

    How many grams of Sulfur are there in 6.0 grams of Fe2(SO4)3

    asked by Anonymous
  11. physics

    Two frisky grasshoppers collide in midair at the top of their respective trajectories and grab onto each other, holding tight thereafter. One is a robust 250 g beast initially moving south at 20.0 cm/s, while the other is a svelte 150 g creature initially

    asked by physics studentt
  12. chemistry

    Assume you are performing the calibration step of Experiment 8 and you begin with 80 g of water at 20 oC and 80 g of water at 80 oC. After adding the two portions of water into your calorimeter setup and following the procedure outlined in the experiment,

    asked by Jim
  13. Physics

    A uniform beam of weight 520 N and length 3.4 m is suspended horizontally. On the left it is hinged to a wall; on the right is it supported by a cable bolted to the wall at distance D above the beam. The least tension that will snap the cable is 1200 N.

    asked by Ray
  14. Programming

    Here is the source code for the Kitty class: public class Kitty { String name; int age; public Kitty(){ } public void setName(String n){ name = n; } public String getName(){ return name; } public void setAge(int a){ age = a; } public int getAge(){ return

    asked by Rob
  15. physics

    An air hockey table works by pumping air through thousands of tiny holes in a table to support light pucks. this allows the pucks to move around on cushions of air with very little resistance. one of these pucks has a mass of 0.25 kg and is pushed along by

    asked by Liz
  16. English

    1. I have a friend who goes biking many times. 2. I have a friend who goes hunting every weekend. 3. I have a friend who got the first prize in the speech contest. 4. I have a friend who is the first in grades his class. 5. I have a friend who is very good

    asked by rfvv
  17. college physics

    two people are wearing harnesses and are hanging from the ceiling by means of ropes. they are face to face and push off eachother. person 1 has a mass of 100kg and person 2 a mass of 80 kg. after the push person 1 swings in an arc that causes hime to rise

    asked by sara
  18. Physics

    A pilot of mass 65 kg in a jet aircraft makes a complete vertical circle in mid-air. The vertical circle has a radius of 1.70 km at a constant speed of 215 m/s. Determine the force of the seat on the pilot at (a) the bottom of the loop and (b) the top of

    asked by Gina
  19. Physics

    A uniform beam of weight 520 N and length 3.4 m is suspended horizontally. On the left it is hinged to a wall; on the right is it supported by a cable bolted to the wall at distance D above the beam. The least tension that will snap the cable is 1200 N.

    asked by Ray
  20. physics

    A regulation 145 g baseball can be hit at speeds of 100 mph. If a line drive is hit essentially horizontally at this speed and is caught by a 65 kg player who has leapt directly upward into the air, what horizontal speed (in cm/s) does he acquire by

    asked by Student1
  21. 7th grade math

    Sue Thank you I understand how to do those problems. I have one last question: Is this true or false: If the scale factor between two similar shapes is 1, the the two shapes are the same size. (Note If two similar figures have a scale factor of 1, they are

    asked by DIANE
  22. 11th grade

    The price of a sweater is $5 less than teice the price of a shirt. if four sweaters and three shirts cost $200, find the price of each shirt and each sweater.

    asked by Matt
  23. physics

    Calculate in newtons weight of 2.5kg melon. and what is it's weight in pounds?

    asked by Student
  24. chemistry

    the percentages of carbon,hydrogen and oxygen in vitamin c were determined by burning a sample weighing 2.00mg,the masses of carbondioxide and water formed are 3.00mg and 0.81mg respectively.from these information,find the percentage of each element and

    asked by yankoua
  25. physics

    an apple weighs about 1N. what is its mass in kilograms ? what is its weight in pounds?

    asked by penny
  26. 6th Grade Math

    A rectangular kitchen table is three times as long as it is wide.If it were 3 m shorter and 3 m wider it would be a square.What are the demensions of the rectangular table?

    asked by Jamie
  27. Calculus

    The measurement of one side of a right triangle is found to be 9.5 inches, and the angle opposite that side is 26°45' with a possible error of 1.5'. Approximate the percent error in computing the area of the triangle.

    asked by Calvin
  28. To Ms. Sue

    THE FRENCH REVOLUTION Before the French Revolution France had a system of government and society which was called the OLD REGIME. In the 1780's France was experiencing many economic difficulties. LOUIS XVI called a meeting of the NATIONAL ASSEMBLY in order

    asked by Sara
  29. 7th grade math

    Suppose you copy a figure on a copier using the given size factor. Find the scale factor from the original figure to the copy in decimal form. a] 200% b] 150% c] 75%

    asked by DIANE
  30. 3rd grade

    When you write 2,500 in expanded form, how many addends do you have? 2,000+ 500+0+0 ??

    asked by Math
  31. Physics

    What is the terminal speed for an 84.0kg skier going down a 37.0degree snow-covered slope on wooden skis μk= 0.060? Assume that the skier is 1.80m tall and 0.300m wide.

    asked by Angela
  32. physic

    please help me.A 5.00 g object moving to the right at +20.0 cm/s makes an elastic head-on collision with a 10.0 g object that is initially at rest. (a) Find the velocity of each object after the collision. 5.00 g object 10.0 g objectt (b) Find the

    asked by Chan
  33. Vector & Geometry

    Determine the vector having initial point P(x¡,y¡,z¡) and the terminal point Q(x¡¡,y¡¡,z¡¡) and find its magnitude.

    asked by Beta plus
  34. organic chemistry

    What will happen to the Rf values of the pigments if you were to increase the relative concentration of acetone in the developing solvent

    asked by Toby
  35. Physics

    A loaded penguin sled weighing 60 N rests on a plane inclined at 20° to the horizontal. Between the sled and the plane the coefficient of static friction is 0.25, and the coefficient of kinetic friction is 0.18. (a) What is the minimum magnitude of the

    asked by Karen
  36. english

    what is the prefix for dismayed.

    asked by MONA
  37. science

    John loads a collapsed inflatable boat into a two wheel "grocery type" handcart and wheels it down to the lake. While the cart is being wheeled it is tipped at about a 45-degree angle (in other words, about halfway between horizontal and vertical). John

    asked by Anonymous
  38. Physics

    Batman (mass = 95 kg) jumps straight down from a bridge into a boat (mass = 560 kg) in which a criminal is fleeing. The velocity of the boat is initially +10 m/s. What is the velocity of the boat after Batman lands in it?

    asked by Kayla V
  39. math

    A gardener measures the tallest of his prize-winning sunflowers and finds that the height is 60 in. The sunflower was 52 in. tall the last time the gardener measured it. Write and solve an equation to find how many inches the sunflower grew.

    asked by Anonymous
  40. Stats HELP PLEASE

    The game of Yahtzee is played with five fair six-sided dice. A turn consists of rolling all five dice, selecting the ones you want to keep, re-rolling the rest, and then doing this one more time, if necessary. You need to match certain conditions in order

    asked by CM
  41. biology

    Small molecules are combined to form large molecules by the life function of... please help!! URGENT!

    asked by alyssa
  42. Socials

    French Revolution Before the French Revolution France had a system of government and society which was called the Old Regime. In the 1780's France was experiencing many economic difficulties. Louis XVI called a meeting of the National Assembly in order to

    asked by Sara
  43. Civics

    Why are the Supreme Court procedures so rigid?

    asked by Anonymous
  44. chemistry

    problem 2. a sample of calcium chloride weighs 1.64g. it is dissolved in water and silver nitrate solution added.a precipitate of silver chloride weighing 4.24g was formed.determine the percentage composition of each element. the simple formular of calcium

    asked by yankoua
  45. Physics

    A police officer in hot pursuit drives her car through a circular turn of radius 320 m with a constant speed of 74.5 km/h. Her mass is 55.0 kg. (a) What is the magnitude of the net force of the officer on the car seat? ______N (b) What is the angle

    asked by jane
  46. chemistry

    how many totsl moles of ions are released when 0.83 mol of K3PO4 dissolves in water?

    asked by samm
  47. math

    on my worksheet "books never written" AND i have to do multiplication by 2 digit factor and i need help solving the names of the authors please don't tell me This makes no sense to me. also, you need a middle school worksheet that says MIDDLE SCHOOL MATH

    asked by Lulu
  48. chemistry

    problem 3. A compound Y containing carbon,hydrogen and oxygen was burned in a stream of oxygen,the carbondioxide and water were cooled in a pre way absorption tube and carefully reweighed.Readings obtained were initial mass of Y is 20.63mg mass of

    asked by yankoua
  49. chem engineering

    Mass balance on an intravenous injection (IV) bag A nurse sets up an IV drip for a patient consisting of normal saline; assume that this is an aqueous solution containing 150mM salt. The saline drip is supplemented with an antibiotic solution; assume that

    asked by Christina
  50. Math

    Pamela and David walk on the same track. It tqkes Pamela 9 minutes and David 6 minutes to walk one lap.If they start walking at the same time, how many laps will each have walked when they cross the starting point together for the first time?

    asked by Robbie
  51. Physics

    A roller-coaster car has a mass of 1170 kg when fully loaded with passengers. As the car passes over the top of a circular hill of radius 16 m, its speed is not changing. (a) What are the magnitude and direction of the force of the track on the car at the

    asked by joann
  52. Stats Anyone?

    The first-year retention rate is the percentage of entering freshman at a given college !@#$%^&turn to that same college for their sophomore year. Many colleges use the first-year retention rate as one measure of their quality. Suppose that the first-year

    asked by CM
  53. Chemistry II

    A solution contains the following: NH3(aq) + H2O(l) NH4+(aq) + OH-(aq) Adding NH4Cl to this solution shifts the equilibrium of the given reaction to the left. What kind of reaction is this?

    asked by Mandy
  54. brain!!

    What is the funtion of hipocampus? what is oxytocin n where it comes from? i am having a little confusion in those please help!

    asked by toshiro
  55. Physics-circular force

    A child on a merry-go-round is moving with a speed of 1.40 m/s when 1.18 m from the center of the merry-go-round. (a) Calculate the centripetal acceleration of the child. (and I got 1.08) (b) Calculate the net horizontal force exerted on the child (mass =

    asked by Anonymous
  56. Math

    The average rainfall for 6 months was 28.5 mm.If it had rained 1 mm more eache month what would the average have been?By how much would the total have been increased in six months and by how much would average have been increased per month.

    asked by victoria
  57. Biochemistry

    explain why a strong acid or base can denature an enzyme explain how varying pH influenced the rate of the catalase reactions and explain why. explain the influence of temperature in excess of 50 degrees C on the influence of most enzyme controlled

    asked by Zac
  58. physics

    What is the horizontal velocity of the pencil? the ? is you are standing in the aisle of a bus that travels along a straight road at 100km/h, and you hold a pencil still above your head. then relative to the bus,the velocity of the pencil is km/h and

    asked by kathy
  59. math

    The two cereal boxes shown have corresponding edges in a ratio of 2 : 3. If the smaller box sells for $2.50 and the larger box for $4.00, which is the better buy? Why? What assumption(s) do you have to make when solving the problem? Estimate, then check.

    asked by jeng
  60. Chemistry

    What type of chemical reation is : Na + H2O---) NaOH + H2? The 2s are subscripts but I couldn't get it to type that way.

    asked by Shawn
  61. Chemistry

    What are some different ways two water molecules could be positioned so that they stick together?

    asked by Channing
  62. SCIENCE

    WHICH PROCESS PRODUCES MOST OXYGEN IN ATMOSPHERE PHOTOSYNTHESISI OR TRANSPIRATION WHICH GAS DOES PHOTOSYNTHESISI PRODUCE OXYGEN OR CARBON DIOXIDE GRAS--GRASSHOPPER-SNAKE-HAWK IF APART OF A FOOD WEB WOULD MORE MORE ARROWS POINT TOWARD OR AWAY FOR THE SECOND

    asked by MYLES
  63. english

    In today's world, who or what might be our Grendel, our monster? from the story Beowulf

    asked by kate
  64. physics

    A force is given by Fx=Ax^-3, where A=8.0 N*m^3.(a) For positive values of x,does the potential energy associated with this force increase or decrease with increasing x?(You can determine the answer to this question by imagining what happens to a particle

    asked by Randy
  65. physics 8th grade

    If a woman hasa mass of 50 kg calculate her weight in neutons

    asked by jim
  66. Physics

    A diver of weight 730 N stands at the end of a diving board of length L = 5 m and negligible mass. The board is fixed to two pedestals separated by distance d = 1.5 m. What are the magnitude and direction of the force on the board from the left pedestal?

    asked by Ray
  67. Mass Communication Studies

    Consider the issue and implications of intentional news media bias. Why are large segments of the American news media audience either unable or unwilling to be better critical media consumers? Is it OK for Fox News network to do what it does – even while

    asked by Alyssa
  68. socieconomics

    Methods of maintaining peace & unity in bi-national multinational and multiethnic states?

    asked by Amanda
  69. spanish II

    Write the correct form of "tener." 13. (yo) ____ dos casas. 14. (él) ______mucho dinero. 15. (ella)_____ poco dinero. 16. (Uds.) ______ mis zapatos.

    asked by tommy
  70. physics 1

    need wieght in lb.s an apple weighs 1N mass in kilograms give weight in lb.s

    asked by Student
  71. math

    The average rainfall for 6 months was 28.5 mm.If it had rained 1 mm more eache month what would the average have been?By how much would the total have been increased in six months and by how much would average have been increased per month.

    asked by victoria
  72. English

    Hello! I don't want to ask for help with my homework, aI have some more serious problem.... next year I will go to collage, i will graduate in May. I really want to study law in Vienna, but I only found Uni Wien....does somebody know any other university,

    asked by Lulu
  73. Trigonometry

    prove:(cscx-cotx)^4 x (cscx+cotx)^4 = 1

    asked by Laura
  74. English

    I have pictures of national flags of six countries. Which national flag is French natonal flag? Which country's national flag is this picture? Which national flag is related to French? Which national flag is French's. I want you to find Chinese national

    asked by Tom
  75. English

    I need an aliiteration that has to do with a custardand an elephnt ear. I don' wnt the wole thing, just a few words to get me started. :) Thanks.

    asked by :))
  76. Biology

    How well would a plant grow under pure yellow light? Explain. Really had no ideas on this... Thank You.

    asked by Anonymous
  77. chemistry

    What four guidelines are useful in balancing an equation

    asked by lynda smith
  78. math

    Consider the following method of estimating Fahrenheit temperatures given Celsius temperatures (which was stated earlier in this section): To estimate the Fahrenheit temperature for a given Celsius temperature, double the Celsius temperature and add 30.

    asked by jeng
  79. trig

    lx - 2l - lx + 2l > x The absolute value of x - 2 minus the absolute value of x + 2 greater than x. What is the Answer Please Help!

    asked by Andy
  80. Math

    Please help, how do I solve this: 7 gal/wk = ___ qts/hour

    asked by Danny
  81. algebra

    3b-13+4b=7b+1

    asked by JML
  82. physics

    in the cabin of a jetliner that cruises at a sped of 600/km/h, a opillow drops from an overhead rack. since the liner is moving so fast why doesn't the pillow slam into the omoartment when it falls?what is the horizontal speed of the pilow relative to the

    asked by Student
  83. chemistry

    How are most decomposition reactions initiated

    asked by lynda smith
  84. chemistry

    why mixture of Nano2 and NH4Cl are taken in aqueous form?

    asked by Tshering Dema
  85. marine science

    how does the earth redistribute the uneven amount of solar energy received by earths surface

    asked by melissa
  86. Communication Studies

    Consider the issue and implications of intentional news media bias. Why are large segments of the American news media audience either unable or unwilling to be better critical media consumers?

    asked by Audrey
  87. criminal law

    1 Constitutional law The law as expressed in the U.S. Constitution and the various state constitutions. The U.S. Constitution is the supreme law of the land. State constitutions are supreme within state borders to the extent that they do not violate the

    asked by Mary
  88. Literature

    I have to write a book review on a captivity story that I've read. The instructions are: 'Choose a captivity story you know or have read, and share your findings about it in the form of a book review. Summarize the reason for the captivity, the main events

    asked by mysterychicken
  89. Chemistry

    Hi Dr. Bob, this is a chemistry question. I don't know how to go about solving this problem: What is the pH of the solution created by combining 11.40 mL of the 0.10 M NaOH(aq)with 8.00 mL of the 0.10 M HC2H3O2(aq)? Here's what I have so far: (0.10M

    asked by Yo
  90. English

    1. Because she will come here, I will meet her. 2. Because she comes here, I will meet her. 3. As she will come here, I will meet her. 4. As she comes here, I will meet her. (Which one is grammatical?)

    asked by Tom
  91. International Business

    For my IB project, I need five people who live outside the United States to answer three questions about business in their country. The questions are: 1) What do you think is the most difficult challenge for U.S. businesses that want to do business in your

    asked by Lisa
  92. Literature

    'Du Maurier, who wrote the short story The Birds, tells us that the birds are trying to destroy human life, but we never know what is making them do it. Is it really the weather, as some characters in the story think? Is it an evil force? Suppose you're a

    asked by mysterychicken
  93. Physics

    A circular-motion addict of mass 85 kg rides a Ferris wheel around in a vertical circle of radius 10 m at a constant speed of 6.1 m/s. (a) What is the period of the motion? __________s (b) What is the magnitude of the normal force on the addict from the

    asked by Kajal
  94. Marketing

    the 3M Post-it Highlighter case presents a number of issues in marketing. How did 3M's David Windorski get ideas from college students to help him in designing the final commercial version of the Post-it Flag Highlighter?

    asked by Bryan
  95. Social Studies

    I have to define the word Kinship, come up with a couple synonyms, use it in a sentence, and then draw a picture to resemble it. For the definition I got: the relationship amoung family members For the synonyms I got: bond, family, relation I need help

    asked by Ashley
  96. Physics 11

    Mark Ji shoots a 40gram arrow straight up in the air at 30m/s during a home archery training session a. assuming no air resistance, what is the maximum height that the arrow could reach? b. How fast is the arrow going when it hits the ceilings at a height

    asked by Andy
  97. Math

    solve by graphing: x+y=1 2x+y=0 I know that the answer is (-1,2)and i know how to mark the spot but can you explain how to draw the lines because i cant figure out the directions it goes in.

    asked by Jaison
  98. English

    1. He is helping an old man get on the bus. 2. He is helping an old man get onto the bus. (Which preposition do I have to use? are both OK?) 3. Look at the picture. He is trembling because of cold. It is winter. It is windy as well. Look at the bare

    asked by Tom
  99. Math Trig

    At what two points on the unit circle is the x-coordinate equal to the y-coordinate? Hint:Use the equation for the unit circle (x^2+y^2=1) but this time, replace y with x.

    asked by John
  100. English

    1. Today we eat foods/food which come from all over the world. (Do we have to use 'food' or 'foods'? Are both OK? When do we use 'foods'? 2. I like healthy food. 3. I like health food. 4. I like healthy foods. 5. I like health foods. (Which ones are

    asked by Tom
  101. Physics

    The two blocks (m = 37 kg and M = 109 kg) in the figure below are not attached to each other. The coefficient of static friction between the blocks is µs = 0.55, but the surface beneath the larger block is frictionless. What is the minimum magnitude of

    asked by Jane
  102. to kill a mockingbird

    I'm reviewing for my test about the novel "To Kill a Mockingbird". There's this question I can't answer: 1. What are the generalizations (like stereotyping) made about black people? Who makes them? And how are black people affected by it? The same question

    asked by lily
  103. Chemistry

    Based on pressure values for each component of the reaction, what is the value of the reaction quotient, Q? Equation: C2H2 + 2 H2 -> C2H6 C2H2 has a pressure of 5.05 atm H2 has a pressure of 4.35 atm C2H6 has a pressure of 0.0225 atm

    asked by Anonymous
  104. classroom management

    Why is building student-teacher rapport critical to establishing and maintaining a productive classroom environment? How does communication with students impact successful implementation of classroom rules and procedures? What communication skills and

    asked by Anonymous
  105. middle school math

    o on my worksheet "books never written" AND i have to do multiplication by 2 digit factor and i need help solving the names of the authors

    asked by Lulu
  106. chemistry

    what is meant by the term coefficient in relation to chemical equation

    asked by lynda smith
  107. science

    How would i set these up? like what is the equations? # A tennis player hits a tennis ball with a force of 330 N, and it accelerates at the rate of 5,500 m/s2. What is the mass of the tennis ball? # Li is pedaling his bike with a force of 220 N. The

    asked by please help(:
  108. science

    Arrange the amount of momentum of these objects from the most momentum to the least momentum. When placing the objects in the correct order, record the value of their momentum. 1. A 0.4 kg baseball thrown by a major league pitcher at 120 m/s. 48kg*m/s 2. A

    asked by please help(:
  109. math

    In a measurement of precipitation (rainfall), a raingauge with an orifice (collector) area of 30.50 in2 collects 1.30 litres of water over a period of 26 minutes and 45 seconds.[10] Calculate: 1) The depth (amount) of rain that fell (in mm). 2) The

    asked by ScienceConfusion
  110. Algebra

    I had to solve the function g of f where f is x^2+1 and g is sq. root of x. I wrote this out as the sq. root of x^2+1. The ^2 and the sq. root canceled each other out, so I was left with x + sq. root of 1. But my book got sq. root of x^2+1. Was the further

    asked by Adriana
  111. STATISTICS

    A study has shown that among people without any preschool education, 32% were employed at age 19. If 100 people without preschool education are selected, find the probability that 40 or fewer are employed.

    asked by Sonny
  112. math

    what is 10.5 divided by 1,000 and can u show the work

    asked by armani
  113. Math

    Explain how a child who has not yet developed base-ten concepts understands quantities as large as say 85. Contrast this with a child who understands these same quantities in terms of base-ten groupings.

    asked by Deb
  114. physical chemistry PLEASE HELP!!!

    given E, = l^2 h^2 / 2 m r^2 calculate energies for an electron localised to a circle of radius 2 x 10^-9 m for l = 0,1,2, draw pictures of three levels and calculate the relative populations of these levels at 300K i did the first bit but came out with,

    asked by poppy
  115. social studies

    What are two more names for a market economy? I only have free enterprise.

    asked by Anya
  116. ps 13

    how to find the Landmark in a set of numbers

    asked by Nicole
  117. chemistry

    What was Bohr's theory of behavior of the electron?

    asked by kate
  118. History

    I have to know,every time i search this question it only tells me where he went. Why did Christopher Columbus go on voyages?

    asked by Brittany
  119. Math 116

    How do you write an inequality for this problem. You have a budget of $2.500.00 and you want to buy 30 tons of rock for $60.00 per ton. You also want to plant trees for $84.00 per tree. Write an inequality that illustrates this problem and solve the

    asked by Janeen
  120. English

    1. Meeting her, I will be very glad. 2. When I meet her, I will be very glad. 3. If I meet her, I will be very glad. 4. As I meet her, I will be very glad. 5. As I will meet her, I will be very glad. (Are they all the same? Which one is correct, #4 or #5?)

    asked by Tom
  121. Political Science-PLEASE HELP

    What are the American Government system's strengths and weaknesses?

    asked by Rayna
  122. Programming Language

    Create a method called countSelected, which takes an array of integers and an integer as input parameters and returns the number of occurences of the integer in the array. Example: data:{2, 1, 1, 8, 1, 0} select:1 ==> 3 public int countSelected (int[]

    asked by Josh
  123. math

    it is less than 60 and greater than 55. if you add the digits, the sum is 13. write the number

    asked by Anonymous
  124. Geography

    24. The South African government changed its policy of apartheid in 1990 and 1991 because of a. the policy's failure to eliminate racial discrimination b. promises of economic aid from major industrial nations c. international sanctions and an increase in

    asked by mysterychicken
  125. social studies

    why was rome able to take over most of the land surrounding the mediterranean sea?? PLEASE HELP!!!

    asked by Leslie
  126. Grammar

    Complete the following sentences using the articles a, an, and the. A beautiful stone formation found in some limestone caves is _____ stalactite. Most stalactites are formed by water dripping in _____ cave.

    asked by Tommy
  127. chemistry

    what is the volume of 0.)250 MgCl2 should be diluted to 250 mL to obtain a solution with {Cl-} = 0.0135

    asked by Aleander Azumah
  128. To Ms. Sue

    However during the ESTATES GENERAL the 3RD ESTATE with some help from other PEOPLE declared a new government which they called the NATIONAL ASSEMBLY. I changed Estates to people. Does the rest of this make sense?

    asked by Sara
  129. crt 205

    In the future how will critical thinking influence the ways that you: a) Read? b) Write? C.) Process Information? II. Why and how could you apply critical thinking when evaluating each of the following: a) Articles? b) Advertising? c) Media?

    asked by Anonymous
  130. physics

    If jon has a weight of 645N what is his mass? I have to do this using the GUESS METHOD

    asked by penny
  131. genetics

    What would happen during DNA replication if there were no thymine nucleotides available?

    asked by sam
  132. geometry

    If you were buying nuts, would you rather pay $9/kg or $4/500g?

    asked by Aleah
  133. spanish

    What does Es la una en punto mean?

    asked by Taylor
  134. 5th grade math

    what are the 3 names for measuring triangles by side length? what are the 3 names for measuring triangles by the angle size? thank you website reference would be great :)

    asked by Margaret
  135. CT. 205

    Please Help Identify the fallacy and explain Why fallacy fit that category . Would Someone Check My Answers to the following ( 4 ) passages . Assignment is past due ! I am having serious trouble on this assignment . 1 . Letter to the editor : “ Andrea

    asked by Chancy
  136. environment

    Why is building student-teacher rapport critical to establishing and maintaining a productive classroom environment? How does communication with students impact successful implementation of classroom rules and procedures? What communication skills and

    asked by Anonymous
  137. math

    it is less than 60 and greater than 55. if you add the digits, the sume is 13. write the answer

    asked by Anonymous
  138. Literature

    'Du Maurier, who wrote the short story The Birds, tells us that the birds are trying to destroy human life, but we never know what is making them do it. Is it really the weather, as some characters in the story think? Is it an evil force? Suppose you're a

    asked by mysterychicken
  139. Biology

    Sorry, I have one more question... what can be concluded about effects of RpoS and OxyR on KatE expression? I've looked online but I've only found experiments which I do not understand. Could someone please clarify? Thanks!!!

    asked by Emily F.
  140. Literature

    In reply to my past post-- On the third of December on the Cornish coast of England many years ago, the weather changed overnight from a mild autumn to a cold, harsh winter. Nat Hocken, a worker at a farm noticed that the birds appear more restless than

    asked by mysterychicken
  141. English

    1 Constitutional law The law as expressed in the U.S. Constitution and the various state constitutions. The U.S. Constitution is the supreme law of the land. State constitutions are supreme within state borders to the extent that they do not violate the

    asked by Mary
  142. 7th grade math

    How do you write each fraction as a decimal and as a percent? How do you get the answer? a] 2/5 b] 3/4

    asked by DIANE
  143. last one! science!

    A typical high school lab activity involves building a model rocket with a small canister, antacid, and water. The water and antacid are combined in the canister, which is then tightly closed and turned upside down. The reaction of these materials in the

    asked by please help(:
  144. Algebra I

    Factor each polynomial: 2wcubed + 6wsquared - 4w I got...2w(2wsquared - 2)

    asked by Austin
  145. math

    ethan wrote a new song,The first time he wrote it,it had two verses,the second time 4 verses,the last time 6 verses.How many verses will he sing if he sings the song 8 times?look for a pattern and solve the problem

    asked by mary
  146. English

    1. Where is there a candy striper? 2. Where can we see a candy striper? 3. Where is a candy striper from? 4. Where does a candy striper live? 5. What does a candy striper wear? 6. What clothes does a candy striper wear? 7. What kind of clothing does a

    asked by Tom
  147. social studies

    Would you please show me a website that shows an actual answer to a dbq? I would like to see a model answer. I am in eigth grade. Thank you.

    asked by rochelle
  148. biology

    In D. virilise, the mutations dusky body (dy), cut wings (ct) and white eyes (w) are all recessive alleles located on at different places on the x chromosome. Females heterozygous for all three mutations were crossed to dy ct w males, and the following

    asked by jade
  149. MATH/SCIENCE

    Llyn y Gweision (a Welsh lake) has a surface area of 10 km2. It is fed by two rivers: the Afon Chwefru and the Nant Aeron. The Chwefru(Ich) has a catchment area of 1250 km2. The Aeron(Iae) has a catchment area of 2.400 * 106 ha. The outflow stream, the

    asked by PLEASE HELP ME! MY ASSIGNMENT IS DUE 2MARROW!
  150. math

    0.02 round to the nearest hundreth

    asked by Robert
  151. algebra

    7n+6=4n-9

    asked by JML
  152. 8th grade

    Please Help Me. I'm doing a Science Fair Project, and I need help with finding simmilar experiments to mine. My experiment is: Which saliva is cleaner: Cat, Dog, or Human???

    asked by Ben
  153. American National Government

    Can someone help me with these two questions? What are the Constitutional powers given to the House of Representatives? My answer is: 1. Revenue- raising bills must orginate. 2. Has the sole power of impeachment. 3. Elect president in electoral college

    asked by B.B.
  154. college

    Can inductive reasoning and deductive reasoning make a comelling argument by themselves?

    asked by Tiny
  155. math

    find the product-25x(-6)=

    asked by khaila
  156. Please CHeck my French

    Chère Mme Guerit J'ai mal à la gorge. Je ne mange rien. J'ai une mauvaise mine et je suis fatiguée aussi. Je dois prendre un médicament. Dois-je appeler un docteur? Qu'est-ce que je dois faire pour avoir une bonne mine?

    asked by Anna
  157. Differentiation

    How do i differentiate cos(3/x) or sin(4/x)? Please help!

    asked by Urgent Please help!
  158. ecology

    What is an example of biotic to biotic relationship, abiotic to abiotic relationship, and abiotic to biotic relationship?

    asked by Anonymous
  159. 3rd grade

    how can i subtract and fid the diference on 1500 - 1132 can you show me

    asked by alexia
  160. math

    "If you were buying nuts, would you rather pay $9/kg or $4/500 g?Explain."

    asked by jeng
  161. college Accounting

    How do you determine the dividends per share for preferred stock and commom stock for each year?

    asked by Mary
  162. chemistry

    what are electrostatic forces

    asked by lila
  163. math

    how do i figure out 4 root 3

    asked by jeng
  164. Biology

    How do you test the effect of RpoS on oxyR expression? I cannot find information on this topic anywhere... please help me out! Thanks you!

    asked by Emily F.
  165. science

    # a quarterback throwing the football unbalanced # a pickup truck cruising at a constant velocity balanced # two teams in a tug of war at a standstill balanced # a math book sitting on top of a table balanced # Reese and Li moving Catalina's amplifier a

    asked by please help(:
  166. Civics

    I need help with one more question. Identify factors that affect how the Supreme Court shapes public policy, and name major cases that illustrate each factor.

    asked by Anonymous
  167. 2nd grade

    what is the shrinking patterns?

    asked by thishanth
  168. Beowulf poem

    1. The poem describes when Grendel’s “hatred began,” but it doesn’t tell us why. Why do Grendel began to hate Hrothgar and his people enough to kill them?

    asked by kate
  169. Alegebra I

    write each answer in descending order (binomials) (2x+3) - (x-4) + (x+2) i got ... 2x+1

    asked by Austin
  170. English

    1. Lisa thinks people will be happy in the future. They will have more food and longer holidays. They can also travel to the space. However, Tommy thinks people will be sad in the future. They will suffer from hunger, air pollution and water pollution. 2.

    asked by rfvv
  171. Chemistry

    Give the symbol for each, and the units: 1.What is the mean kintetic energy of all particles in a sample of matter? 2.What is the amount of thermal energy that flows between two or more bodies of different temperatures?

    asked by Natalie
  172. English Comp

    Do I need to capitalize: Initiated and implemented the Stress Echo program. I performed Echocardiogram at this site.

    asked by Karen
  173. Vector & Geometry

    Prove that the projection of A on B is equal to A.b

    asked by Beta plus
  174. math

    Which pair of equations share a solution? Answer: 5x+2=32 4x+9=5(14-x)-7 -I know the answer but I have absolutely no idea how to get it help please!

    asked by Channing
  175. 6th Grade

    What influence did Anne Frank have on the community,the country,or the world?

    asked by victoria
  176. science

    what do you call a 3D triangular shape that bends light when it passes through

    asked by saiyda
  177. 5th grade - Social Studies

    What method of communication was used in the late 1800's?

    asked by Anonymous
  178. English

    What is the definition of lowing in the context of the book "Animal Farm?" thanks:)

    asked by Rebekah
  179. To E.G :-)

    Just wanted to say thanks 4 ur help.

    asked by Anna
  180. To Ms. Sue

    Ms. Sue can you please have a moment to look at my previous post.

    asked by Sara
  181. science

    the _____ equator is at the 0 degrees latitude. the _______ equator is an imaginary line marking the tempeture equilibrium between the hemispheres

    asked by melissa
  182. 6th grade

    earths diameter is approxametly 8000mi at th equator.how fast is the earth spinning?

    asked by Anonymous
  183. algebra

    5-3(w+4)=w-7

    asked by mary
  184. French

    Is this correct? Nous avons besoin d'preillers pour faire un château-fort. Alles à la cuisine. We need pillows to build a castle/fort Oui, je trouverai les oreillers. Is it pronounced as or-ray-lay? Merci beaucoup!

    asked by Marie
  185. Geometry

    If a/4=b/7, then a/b=?

    asked by Erin
  186. geometry

    2m 300mm = ____ cm

    asked by Aleah
  187. english

    Recognition of incongruity (difference) between what is seen and what is accepted. ~inference or irony

    asked by Marina
  188. science

    how much force is needed to move a 10000kg airplane at 12.0 m/s

    asked by ashley
  189. english

    What are the adjectives in each of the following: 1. A quarter will not buy very much. 2. Do you need any food for the party?

    asked by Rachael
  190. math

    i cant seem to get the answer that the teacher gave us which is 5y^2-11y The problem is simplify: 2y^2-y[3-2(y-4)-y] how did he get that answer?

    asked by Jaison
  191. Pre- algebra Math 6 th grade Gifted

    what is the sum of the numbers 1 to 1000? ans:500500

    asked by Lulu
  192. Philosophy

    Can deductive and inductive reasoning make compelling arguments by themselves

    asked by Tiny
  193. Mass Communication Studies

    Are the people at Fox News so good at what they do that they are destined to permanently damage American journalism?

    asked by Audrey
  194. math

    could you solve this equation 37-4+8n=57

    asked by joy brandon
  195. Technology

    ok..so i have these labs in technology. and i'm on the first one. here's how it goes: ACTIVITY 1A-DESIGN PROBLEM Background: Technology is the application of knowledge to create machines, materials, or systems to help us make work esasiers, to make life

    asked by y912f
  196. math

    Find an algebraic model for the sum of a number and its reciprocal. I have come up with y=x+ (1/x), although I was wondering if it would be correct to write it as y=x^2+1/x I am supposed to graph this, but when i graph both I get different graphs on my

    asked by jenny
  197. math

    how to do what's my rule?

    asked by Elijah
  198. algebra

    7x=5+5x

    asked by omar
  199. social studies

    how does a person gain a presidency?

    asked by Anonymous
  200. Reading

    In the book "Owls in the Family" written by Farley Mowart The boys carried the owl home in the ______.

    asked by Tommy
  201. English

    1. Where do Tom's friends usually volunteer at? - At libraries or town halls. 2. Where do Tom's friends usually volunteer? - At libraries or town halls. (Which question is right? Do we have to use 'at' or not?)

    asked by rfvv
  202. math dividing

    how do i divide stuff like this 1.06 Divided 0.06

    asked by tyler
  203. ss

    what contributed to the decline of the Shang???????

    asked by i really need help!! PLZ!!!
  204. Math

    How would I write this as a function of y=x^3 Reflected in the y axis, horizontally stretched by a factor of 7, vertically translated 19 units down. Would this be correct? g(x)= (-1/7(x-1))^3-19

    asked by May
  205. Math

    multiply: (a-2)(2a-3)(a+7) how do you do this problem?

    asked by Jaison
  206. ct.

    Can someone check my answers to these (5) fallacy to see if I have matched them correctly . Thanks ! 1. On a radio ad : "Have you been fatigued , irritable , moody ? If these symptoms are ignored ,you might become depressed or even suicidal ! Ward off the

    asked by lovely
  207. science

    what is the word for the straight light travels in?

    asked by saiyda
  208. math

    27.671 round to the nearest hundreths

    asked by Robert
  209. essay writing

    where will you find the thesis in an introductury paragraph?

    asked by larry
  210. math

    what is 25.5 divuded by 1,000 can you show the work

    asked by armani