Questions Asked on
March 17, 2010

  1. physics

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

    asked by Kyle
  2. Calculus

    HELP PLEASE Find the minimum distance from the point (4, 2) to the parabola y^2=8x

    asked by John
  3. Chemistry

    The density of an aqueous solution containing 10% of ethanol (C2H5OH) by mass is 0.984 g/ml. A) Calculate the molality of this solution. B) Calculate its molarity. C) What volume of the solution would contain 0.125 mol of ethanol.

    asked by Hilavidpreet
  4. math

    The amount of gold jewelry and other products is measured in karats (K), where 24K represents pure gold. The mark 14K on a chain indicates that the ratio between the mass of the gold in the chain and the mass of the chain is . If a gold ring is marked 18K

    asked by kirk
  5. College Chem

    When a0.269g sample of a barium compound was treated with excess H2SO4, 0.0891g of BaSO4 formed. What is the percentage of Barium in the compound?

    asked by London
  6. math

    Bill got 52 correct answers on an 80-question test. What percent of the questions did he answer incorrectly?

    asked by kirk
  7. personal finance

    . Rita Smith owns 220 shares of Jefferson Carpet Mills.For the last calendar quarter,Jefferson Carpet Mills paid dividend of $0.47 a share.What is the total amount Rita received in her dividend check for this quarter? a)$0.47 b)$47 c)$94 d)$103.40 IS A

    asked by vedrana
  8. PHYSICS

    A 120-kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 450 N. For the first 11 m the floor is frictionless, and for the next 11 m the coefficient of friction is 0.30. What is the final speed of the crate?

    asked by REESE
  9. math

    Two forces of 7 lb. and 14 lb. act on a body at right angles to each other. Find their resultant. Find the angle their resultant force makes with the force of 14 lb.

    asked by dan
  10. pre-calculus

    A missile is fired at an angle of 75 from the horizontal. At one point, its speed was 900 mph. Find its horizontal velocity in miles per minute. (Round to the nearest hundredth.)

    asked by brenden
  11. pre-calculus

    A man who can row in still water at 3 mph heads directly across a river flowing at 7 mph. At what angle to the line on which he is heading does he drift downstream and at what speed does he drift downstream?

    asked by ruca
  12. Calculus Optimization

    An electric utility is required to run a cable from a transformer station on the shore of a lake to an island. The island is 6 km from the shore and the station is 12 km down the shoreline from a point opposite the island. It costs $4000/km to run the

    asked by John
  13. personal finance

    Which of the following statements is correct? a)Stock is a form of debt capital b)Stock must be repaid at maturity c)Bonds are a form of debt capital d)Bonds do not have to be repaid at maturity IS C CORRECT ANSWER?THANK YOU:))))

    asked by vedrana
  14. statistics

    Answer the question(s) based on the following situation: 150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with center ì = 65 and standard deviation ó = 10.The third quartile of the scores

    asked by Whitney
  15. College Chem

    Impure sample of table salt that weighed 0.8421g, when dissolved in water and treated with excess AgNO3, formed 2.044g of AgCl. What is the percentage of NaCl in the impure sample? Do I need the molecular weight to start this equation? Where do I start?

    asked by London
  16. Economics

    Hello, I was considering to drop economics since i find it useless. My friends and my parents say its an easy subject and that if i drop it i will have one less subject which looks bad on my permanent reconrd. i find it very hard to concentrate in

    asked by Laura
  17. math

    Two forces of 7 lb. and 14 lb. act on a body at right angles to each other. Find their resultant. Find the angle their resultant force makes with the force of 14 lb.

    asked by ruca
  18. APChem

    "The osmotic pressure of a saturated solution of strontium sulfate at 25C is 21 torr. What is the solubility product of this salt at 25C (Hint: calculate molarity from the colligative properties eqn of osmotic pressure and use it in the equilibrium

    asked by Kiki
  19. physics

    1.A hot air balloon is rising upwards at a constant velocity of 5m.s when the balloon is 100m above the ground, a sandbag is dropped from it. 1.1 what is the magnitude of the acceleration of:a)The hot-air balloon while the sandbag is in it.b)The sandbag

    asked by Tebogo
  20. physics

    A car is designed to get its energy from a rotating flywheel with a radius of 1.50 m and a mass of 600 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up to 4000 rev/min. (a) Find the kinetic

    asked by mike
  21. Physics Rotaional Kinetic Energy

    A car is designed to get its energy from a rotating flywheel with a radius of 1.50 m and a mass of 600 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up to 4000 rev/min. (a) Find the kinetic

    asked by Anonymous
  22. Classroom management techniques

    3. What does the word “with-it-ness” mean? A. Providing activities that challenge students. B. Doing two things at the same time. C. Knowing what’s going on in all parts of the classroom. D. Providing smooth transitions between lessons.

    asked by Deya
  23. MATH

    Two extension ladders are leaning at the same angle against a verticl wall. The 3-m ladder reaches 2.4m up the wall. How much farther up the wall does the 8-m ladder reach?

    asked by Anonymous
  24. math

    Find the missing angle 45 degree and 106 degree

    asked by Lynn
  25. math

    A taxi company charges riders a fixed charge of $2.50 plus $1.50 per mile. How many miles must a rider go to have an average cost per mile of $2.00?

    asked by Anonymous
  26. Math

    The sides of a triangle have the equations y=-1/2x+1, y=2x-4, and y=-3x-9. Verify that the triangle is an isosceles right triangle. Algebraic solutions only!

    asked by Kristen
  27. physics

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

    asked by Kyle
  28. chem

    how many atoms of C are in 2 moles of sucrose C12H22O11? please help

    asked by suzie
  29. chemistry

    prism has total surface area of 360 m2 and volume of 60 m3. If the length, width, and height are reduced to half their original sizes, what will be the following?

    asked by ryell
  30. statistics

    In a population of exam scores, a score of X = 48 corresponds to z = +1.00 and a score of X = 36 corresponds to z = -0.50. Find the mean and standard deviation of the population.

    asked by Teresa
  31. math

    |111| evaluate

    asked by JO JO
  32. Ap Chemistry

    How can NH3 be a ligand but NH4+ is not a ligand??

    asked by Marta
  33. Relgion

    The world St. Paul lived;St. Paul’s conversion. How did each influence his understanding of his mission and ministry? ·

    asked by Anonymous
  34. algebra

    Bayside Insurance offers two health plans. Under plan A ,Giselle would have to pay the first $190 of her medical bills,plus 30% of the rest.Under plan B ,Giselle would pay the first $220, but only 20% of the rest. For what amount of medical bills will plan

    asked by Terry
  35. Biology

    How does an increased carbon dioxide concentration in the blood affect expiration and inspiration?

    asked by Mina
  36. Organic Chemistry 1

    Write an equation for the reaction of sodium bicarbonate with aqueous sulfuric acid to produce carbon dioxide.

    asked by Brianna
  37. Calculus

    derivative of cot(6/x)

    asked by Anonymous
  38. Math

    use the sum and difference identities to find the cosine angle cos pi/9 cos pi/3 - sin pi/9 sin pi/3 I do not know how to solve this because pi/9 is not on the unit circle.

    asked by Hannah
  39. math

    what magic trick does Mr. Utterbunk perform every evening?

    asked by fonzy
  40. Chemistry

    A sample of benzene, C6H6, weighing 3.51 g was burned in an excess of oxygen in a bomb calorimeter. The temperature of the calorimeter rose from 25.00 C to 37.18 C. If the heat capacity of the calorimeter is 12.05 kJ/K, what is the molar energy of

    asked by Marie
  41. Math(Please help)

    2) Use the sum and difference identites sin[x + pi/4] + sin[x-pi/4] = -1 sinx cospi/4 + cosxsin pi/4 + sinx cos pi/4 - cosx sin pi/4 = -1 2 sin x cos pi/4 =-1 cos pi/4 = sqr2/2 2sin^x(sqrt2/2) = -1 sin x = -sqrt2 x = 7pi/4 and 5pi/4 Am I correct?

    asked by Abbey
  42. college calculus 1

    Find the local and absolute extreme values of the function on the given interval. f(x)=x^3-6x^2+9x+1, [2,4]?

    asked by jeffery
  43. English

    In Langston Hughes poem "Theme for English B," in the lines 16-26 it says: It's not easy to know what is true for you or me at twenty-two, my age. But I guess I'm what I feel and see and hear, Harlem, I hear you: hear you, hear me--we two--you, me, talk on

    asked by Troy
  44. personal finance

    if you wanted to save $ 50,000 to have it available in 20years provided the investment would return an APR of 12% compounded monthly. a. how much would you need to have at the beggining (lump sum) in order to achieve the mark of $50,000. b. how much would

    asked by susie
  45. spanish

    what does mi pies grande son mis zappotas mean

    asked by lanenar
  46. English

    Before I start posting questions, I'd like to ask, has anyone read the script -Joker in the Pack. It is a short play about Mitch--the main character. Even if you have not read this script is it okay if I still post the questions about it. I'll answer them

    asked by Sara
  47. math

    what is 2 percent added to $13.15

    asked by Travion
  48. personal finance

    in this problem: if you wanted to put aside $2,000 a year for 10 years ginven a 10% rate of return (compounded monthly) Here, is it the 10 % every month, or the 10% is divided by 12 months of the year and then every month the % is 0.83%?

    asked by susie
  49. math

    . A Boeing 747 jet is approximately 230 ft long and has a wingspan of 195 ft. If a scale model of the plane is about 40 cm long, what is the model’s wingspan?

    asked by kirk
  50. chemistry

    A student performed the synthesis of aspirin using a water bath at 90C instead of 50C. The final product was tested for the presence of phenols with ferric chloride. This test was negative (no color observed); however, the melting point of the dry product

    asked by 10ch
  51. math

    find the missing length of the right triangle 17 and 15

    asked by Lynn
  52. MATH

    Sam built a ramp to a loading dock. The ramp has a vertical support 2 m from the base of the loading dock and 3m from the base of the ramp. If the vertical support is 1.2 m in height, what is the height of the loading dock? Can someone please show me how

    asked by Anonymous
  53. math

    Bill got 52 correct answers on an 80-question test. What percent of the questions did he answer incorrectly?

    asked by kirk
  54. Math

    Divide as indicated. (-2x5 - x3 + 4x2 + 58x - 20) ÷ (x2 - 5)

    asked by LaLa
  55. Math

    Use synthetic division to divide. (4x3 + 26x2 + 10x - 12) ÷ (x + 6)

    asked by LaLa
  56. math

    what is the area of the circumscribed square about a circle having a 12pie perimeter?

    asked by chelsea
  57. human resources

    describe personal values and ethics.

    asked by Anonymous
  58. algebra

    s=c(A=B)find c

    asked by Anonymous
  59. physics

    A 22cm diameter bowling ball has a terminal speed of 77 m/s. What is the balls mass. I need to get the answer in kg. I can`t figure this one out for some reason. Thanks!!

    asked by norm
  60. Space Exploration

    tell what the concept of a habitable zone around a star is. how would I answer this question? The habitable zone is the region around a star where liquid water can exist on planetary surfaces.

    asked by Sara
  61. computer

    Can you explain step by step how data is processed in the computer

    asked by Leah
  62. medical records

    Mrs. Fleet has informed you that Gulf View Associates and Sarasota Outpatient Clinic are considering the possibility of upgrading to electronic medical records

    asked by Toni
  63. algebra

    A person is 3 times as old as aonther person but in 15 years she will only be 2 times as old. I found the answer the younger person is 15 years old and the older person is 45 years old. But 15 years from now the younger person will be 30 years old and the

    asked by Lanise
  64. algebra

    If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together?

    asked by kimnlesc
  65. personal finance

    Juan has received $50,000 in a divorce settlement and is trying to decide how to invest it.He has looked at stocks but knows that some stocks have lost a lot of value for their owners recently.What aspect of investing is he most concerned about? a)risk

    asked by vedrana
  66. literature

    during what part of bernice bobs her hair does bernice cut Marjories braids

    asked by stephanie
  67. math

    find the slope of the line that is perpendicular to the line whose equation is 5x-7y=12

    asked by anonymous
  68. algebra

    m=116 a=500 t=6000 h=45 what is the product of h and m?

    asked by Anonymous
  69. math

    A car company is offering car loans at a simple interest rate of 4.7%. Find the interest charged to a customer who finances a car loan of $7200 for 3 yr.

    asked by kirk
  70. English

    I have wrote a brief summary about the script I am referring to, so if you have time, please do read it, thanks. Can I still post my questions, maybe not all of them. I am going to go through them, and the ones I need help on, I'll post, thanks

    asked by Sara
  71. math

    . A real-estate broker receives 4% of an $80,000 sale. How much does the broker receive?

    asked by kirk
  72. Chemistry

    Using Heisenberg's Principle, calculate for the following positions. a) a 1.54-mg mosquito moving at a speed of 1.82 m/s if the speed is known to within ± 0.01 m/s b) a proton moving at a speed of (4.67 ± 0.02) 104 m/s When I solved (a) I got 1.88e-30

    asked by Anonymous
  73. Math

    Simplify Leave answer in qt. and pt. format. 9 qt 9 pt

    asked by JO JO
  74. Com 220

    Hi, I am writing a sentence outline on the subject of World War II; more precisely, the events that led to the war. I am somewhat confused on how to do this on the parts that I need to state and support the argument as well as prepare against any rebuttals

    asked by Wesley
  75. PHYSICS PLEASE HELP!

    (a)How much work is done by the field in moving the electron through a distance of 7 cm? J (b) Through what potential difference will it have passed after moving through this distance? V (c) How fast will the electron be moving after it has traveled this

    asked by James
  76. MATH

    can some one please help to solve this problem. Add. reduce to lowest terms, if possible 3/y+3+y+7-y-9+/7/y-3

    asked by MAYA
  77. personal finance

    Brenda has received a $10,000 gift from her mother and is trying to decide how to invest it.She thinks she would like to invest it in stocks because she knows that stocks have been earning about 10%rate of interest over the last several years.What aspect

    asked by vedrana
  78. math

    a worker in a city parks need to cover a circular path around the outside of a flower garden with gravel. the radius of the garden is 15 feet and the path surrounding the garden is 6 feet wide. how many square feet need to be covered with gravel? expalin

    asked by Katherine
  79. math

    how do I do this? 28 students collected 12,374 soda can tabs. If some of the students collected one more tab than the rest of the students, how many collected 441 and how many collected 442?

    asked by Cory
  80. Math (FST Exponential & Logarithm)

    What is the range of y= -(2)^(x-3)

    asked by Raven
  81. Space Exploration

    ou tline the conditions for liquid water to exisit on a planet. -the planet needs to have a right temperature -protective atmosphere -habitable zone are these the only reasons?

    asked by Sara
  82. health

    „Ï Discuss how participation contracts represent financial opportunities for providers. What are positive and negative ramifications of discounted fee-for-service arrangements? Explain your answers in 200 to 300 words.

    asked by Anonymous
  83. Laws

    How have the historical laws of the code of Hammarubi, Draco's Law, Law of the Twelve Tables, Justinian Code, Magna Carta, and the Statue of Westminster led to the development of security forces, both private and public? Why do you think the need for both

    asked by juliet
  84. 6th Grade Grammar

    Past perfect or present perfect. A reporter has interviewed him several times.

    asked by David
  85. math

    divide -12/0

    asked by JO JO
  86. 6th Grade Grammar

    Past perfect or present perfect. Raj has told the reporter about his new ideas.

    asked by David
  87. physics

    Good job "Drwls", your answer to my bowling ball question worked. Way to go!

    asked by norm
  88. 6th Grade Grammar

    Present perfect or past perfect. The two have worked together to write a book.

    asked by David
  89. English

    is the following sentence biased? Our new district attorney, a Cuban American, is making a speech on Saturday.

    asked by Sally
  90. Algebra

    Is the graph of a parabola a function? I say that it is a function.

    asked by B.B.
  91. ap chemistry

    can you help: "Explain why there are no geometric isomers of tetrahedral complexes. thank you

    asked by Kiki
  92. algebra

    -5x + 5y=25 -10x+5y=10 Graph the linear equation by writing both equations in the slope intercept form... I'm really struggling with this questions.. i have to fill in y=___x+_____ y=____x+_____

    asked by jerson
  93. GSU

    Explain why an economy's output, in esence, is also its income.

    asked by Ramu
  94. law

    What statute did Congress pass two years after the Miranda ruling

    asked by Anonymous
  95. math

    there are two 1's,two 2's,and two 3's.There is one digit between the two 1's, there are two digits between the two 2's, and there are three digits between the two 3's. Holding number cards,can you duplicate this sequence of numbers?

    asked by CeCe
  96. 6th Grade Grammar

    Present perfect, past perfect or future perfect. This month, we have learned about the great sphinx.

    asked by David
  97. Biology Research Paper

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

    asked by mysterychicken
  98. 6th Grade Grammar

    The sixth grade class *had wrote* several papers about the great sphinx. How should the words in the asterisks be written? A. had written b. has wrote c. correct as is

    asked by David
  99. Science

    what is the electron arrangement for boron? and how do you find the valence electron for it? i know it has 3 v.e. but how do you find it

    asked by Anna
  100. Business

    Belinda invested a portion of her savings, indicating that the type of investment she made was a loan to a well-known corporation that generates regular fixed interest payments. What did Belinda invest in? I think it's a bond. Am I correct?

    asked by Lena
  101. statistics

    Are there situations in business where sampling would not be effective? --------------------------------------------------------------------------------

    asked by pat
  102. math 12

    How do I find the asymptotes of (y-2)^2 - x^2/4 =1 The center is (0,2)

    asked by Rae
  103. Chemistry

    A chemist heated a sample of steel wool in a burner flame exposed to oxygen in the air. He also heated a sample of steel wool in a container of nearly 100% oxygen. The steel wool sample in the container reacted faster than the other sample explain why

    asked by Anonymous
  104. Math

    Express each statement using an inequality involving absolute value.Do not solve. 1.The majority of grades in Sean's English class are within 4 points of 85. 2.AA thermometer is guaranteed to give a temperature no more than 1.2F from the actual

    asked by Shadow
  105. chemistry

    URGENT: If 2.24g of salicylic acid is reacted with 61mL methanol, what is the maximum mass of product that could be formed? The density of methanol is 0.791g/mL. Do I just multiply 61ml by 0.791g/ml to get 48.251 g methanol then multiply this by the 2.24g

    asked by Lee
  106. biology

    the structure of the forelimb of a bird is similar in structure to that of the forelimb of a mammal suggesting that both desceded from a common ancestor this similarity is an example of a. vestigial b. biochemicial c. anatomical evidence that supports the

    asked by kay
  107. business

    i have two businesses,a chicken wing place and an antique shoppe.what is the format of describing both in one paragraph?

    asked by barbara
  108. Trig

    evaluate exactly(without calculator): 1. sec(pi/4) 2.3sin4pi 3. tan240(degrees)

    asked by Amy
  109. spanish

    -que vas a hacer manana? -voy a esquiar. Y tu? a. me gusta esquiar tambien b. vas a mirar la televisor c. voy a correr 5 kilometros

    asked by lisa
  110. Biology

    37. Wings, fins, and arms are limb adaptations that allow mammals to a. live in different environments b. attain diverse sizes c. nurse their young d. communicate with other mammals 38. Which characteristic is NOT widely adapted to allow mammals to live in

    asked by mysterychicken
  111. Economics

    Engineers at a national research laboratory built a prototype automobile that could be driven 180 miles on a single gallon of unleaded gasoline. They estimated that in mass production the car would cost $40,000 per unit to build. The engineers argued that

    asked by John
  112. Micoud secondary

    determine the number of electrons required to deposit 6.4g of copper from an aqueous solution of copper II sulphate

    asked by kaye
  113. Economics

    The Largo Publishing House uses 400 printers and 200 printing presses to produce books. A printer's wage rate is $20, and the price of a printing press is $5000. The last printer added 20 books to total output, while the last press added 1000 books to

    asked by John
  114. Science

    Trying to complete a word search. What is a 6-letter word for "State of water that is most common on Earth's surface"

    asked by Terri
  115. Penn Foster

    X-rays or are diagnostic tools used to visualize internal organs

    asked by Shannon
  116. samuel

    how would i do this quadratic word problem A local daycare centre charges $65 per day to care for a child. The daycare currently cares for 150 children per day. A survey shows that the enrollment in the daycare will increase by 10 children for each $5

    asked by jake
  117. bio

    what is the adaptive value of having the organ of gas exchange - in this case, the alveolus - inside the body?

    asked by adele
  118. college

    Solve the inequality using a sign graph (test point method) x^3-x^2-4x+4

    asked by Sierra
  119. chemistry

    How could you recover sucrose or sodium chloride once it has dissolved in water?

    asked by Anonymous
  120. english

    waht does the idom catch a cold mean

    asked by Anonymous
  121. Math

    Could someone please help me with this question? Thanks! Reduce (x^2-5x+6)/(x-2) to lowest terms

    asked by Holly
  122. math 30

    Describe how the graph of y=f(-2x+6)+7 can be obtained from the graph y=f(x)

    asked by Sandy
  123. college microeconomics

    An article in the journal of New York State Economics Association claims that the income elasticity of demand for public college education in New York is +1.67. Who would find this information useful and why? come up with 3 interested parties

    asked by lia
  124. World History

    Both Stalin in the Soviet Union and Hitler in Germany instituted ruthless campaigns against supposed enemies of the state. Why do you think dictators need to find scapegoats for their nation's ills?

    asked by Natalie
  125. math

    how would i do this quadratic word problem A local daycare centre charges $65 per day to care for a child. The daycare currently cares for 150 children per day. A survey shows that the enrollment in the daycare will increase by 10 children for each $5

    asked by jake
  126. math

    A parabola with a vertex at (–1, –2) passes through the point (1,6). Using this information, what are the x-intercepts of this parabola? A) (1 – , 0) and (1 + , 0) B) (2, 0) C) (0, 0) and (–2, 0) D) (0, 0) how would i figure this out?

    asked by jake
  127. chemistry

    A sample of NH4HS (s) is placed into a 2.65 L flask, containing 0.140 mols of NH3 (g). NH4++++>>nh3 (g) + h2s (g) KP = 0.108 wHAT will be the total gas pressure at 25 degrees in atm. I got about 1.361...i don't kno what im doing wrong. im multiplying the

    asked by anonymous
  128. math.

    Suppose h(x) = 3x and k(x) = log3(x). What is k(h(x))? What about h(k(x))? Start with a few numbers to convince yourself. Explain completely why this is true.

    asked by Alyssa Pacheco
  129. chemistry

    1.30 mol each of CO} and Cl2 are introduced into an evacuated 1.80 L flask, and the following equilibrium is established at 668 K. CO + Cl2 +++> COCl2 kp = 22.5 Calculate partial pressure of COCl2. i get about 30.9. but its wrong. i solved for x,

    asked by anonymous
  130. Social Studies

    northwest florida indian tribe

    asked by Andrea
  131. Calculus

    A steamship sails upriver from A to B against a current of three km/h. If the amount of fuel consumed per hour varies as the cube of the speed through the water, how fast should the captain order the ship to steam, if the fuel consumption for the journey

    asked by Ronald
  132. 4th grade math

    You are playing a card game with a full deck of 52 cards. You win if you draw a red card that is a multiple of 5. What are your chances of winning on your first draw?

    asked by Katelee
  133. Chemistry

    What is a reasonable discussion of the method for the preparation of a sample of lead iodide and hygrated copper sulphate?

    asked by Gillian
  134. trig

    I got the following question marked wrong and I was wondering if someone could tell me why I got it wrong. The question is of the 6 trigonometric ratios, if only cosine and secant are positive, the angle is in which quadrant? I said it was in the 4th

    asked by Juliet
  135. physics

    a 10kg block is allowed to slide down a ramp with Mk=0.15. what is the acceleration of the block?

    asked by jennifer
  136. math

    Can you help with three problems 1)2x^2+7x+3 2)6x^2+5x-4 3)4x^2+12x+9 I have to factor this problems.Please help

    asked by lauren
  137. trig

    How do I dertermine the measure of theta for the equation 4cos theta - sqrt 12 = 0. My answer was 2pi/3,4pi/3 I'm told it's wrong could you please show me how to do this type of question

    asked by jamie
  138. 4th grade social studies

    what does Neutral mean?

    asked by danielle
  139. physics

    Two air-track carts move toward one another on an air track. Cart 1 has a mass of 0.34 kg and a speed of 1.1 m/s . Cart 2 has a mass of 0.68 kg and a speed of 0.55 m/s .

    asked by Kyle
  140. Biology Research Paper

    This is my essay on fossil fuels. Can This is my essay on fossil fuels. Can someone please check to see if there are any improvements that can be made? Also, I need help writing a conclusion. Have you ever thought about where your electricity comes from?

    asked by mysterychicken
  141. physics (fixed)

    Two air-track carts move toward one another on an air track. Cart 1 has a mass of 0.34 kg and a speed of 1.1 m/s . Cart 2 has a mass of 0.68 kg and a speed of 0.55 m/s. Calculate the system's kinetic energy.

    asked by Kyle
  142. Geometry

    The slope of line m is -1\5. what is the slope of a line perpendicular to m?

    asked by Anonymous
  143. us history

    "the supreme court ruled that juveniles must receive the same due process rights as an adult,such as the right to an attorney.The only right not guaranteed is the right to trial by jury". Is this following the 14 amendment?

    asked by anem
  144. 5th grade

    What do you call bones joined together with cartilage?

    asked by taralee
  145. science

    Silver bromide a pale yellow precipitate is more soluble than silver iodide. What would happen if NaBr had been added to the solution

    asked by Sabrina
  146. geometry

    In the tests of a new pharmaceutical product, data were collected for use in the approval process required by the U.S. Food and Drug Administration (FDA). Some participants were given a placebo, an inert substance that looks like the drug; others were

    asked by dic
  147. Organic Chemistry 1

    write a step-by-step mechanism for the reaction of 1-butanol with sodium bromide and sulfuric acid.

    asked by Brianna
  148. math (help!!!!)

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

    asked by sue
  149. APChem

    "Part A: Most of the transition metals form brightly colored ionic substances. Which elements located in the first row transition metals cannot form ionic compounds? Explain. Part B: Explain why representative metals do not form colored compounds." I am

    asked by Marta
  150. Calculus

    derivative of (4Cos^2(3x)+3)^2

    asked by Anonymous
  151. Calculus

    2nd derivative of 3t^2 Cos(4t)

    asked by Anonymous
  152. math

    solving this equation...0.9x + 9 ¡Ü 1.3x-6

    asked by amy
  153. Calculus

    Derivative of (Sec(z))^2

    asked by Anonymous
  154. 5th grade

    the radius is 6.what is the area and circumference?

    asked by gracie
  155. Economics

    The Keynesian Multiplier under lump sum taxes A. Smaller than that under proportional tax B. Equal to that under proportional tax C. Larger than that under proportional tax D. Can be larger or smaller depending upon the size of the tax Choose the right

    asked by Salman
  156. math

    what goes first second and third one nineth five sixth or seven eighth

    asked by daniela
  157. Chemistry

    What i meant was I have already had the method in preparing the insoluble salt Pb(NO3)2 and KI and the soluble salt Sulphuric acid and copper oxide. What I need is the discussion of the method use or the procedure that you may have for this preparation the

    asked by Gillian
  158. Geometry

    The line L1 has the equation y=3x. The line L2 is perpendicular to L1 and passes through the point P(0,0). Write an equation of L2

    asked by Anonymous
  159. math

    Evaluate: sec4ð/3

    asked by A
  160. financing

    what is the value of a $50,000 10 year annuity given a 20% rate of return today?

    asked by susie
  161. math

    Solve: csc x = 2, 0¡Üx

    asked by B
  162. math

    x^2-49 Can you help explain why this example is a diffence of two squares

    asked by alyssa
  163. Chemistry

    Write a balanced equation for each reaction Al + Cl2 -->

    asked by Zackary
  164. metro

    Calculate the pH of the buffer solution that results when 10 mL of 0.10 M NaH2PO4 is added to 3 mL of 0.05 M NaOH.

    asked by pat
  165. Global History

    what was Adolf Hitler's goal during the National Socialist movement?

    asked by Alex
  166. Global History

    Why were Western democracies willing to give into Hitler's aggressive actions?

    asked by Alex
  167. 5th grade

    Can you please help with the following questons: 1. Duran was baking cookies. Each cookie had a circumference of 9.3 inches. About how many inches is the diameter of each of Duran's Cookies? a. about 3 inches b. about 5 inches c. about 6 inches d. about 27

    asked by MATH PLEASE HELP
  168. Geometry

    Lines J and N are perpendicular. The slope of line J is 5. What is the slope of line N?

    asked by Anonymous
  169. Poly Sci

    What are 5 examples how the courts have used the Commerce Clause to increase the power of the Federal Government over the states.

    asked by Ryan
  170. social studies

    The most useful indicator of the degree of democracy reached by a particular society is whether it has a:

    asked by keke
  171. math 12

    While training for a race, a runner increases her distance by 10% each day. If she runs 2km on the first day, what will her total distance for 26 days of training?

    asked by C
  172. Chemistry

    I'm working on homework and the computer won't accept my answer. Calculate the energy of photons with wavelenth 0.174 nm. I used the equation E=hv and got the answer to be 1.14 X 10^-17. It says i'm off by a multiple of ten. I have no idea where I messed

    asked by Anonymous
  173. maths

    The mean of 10 observations is 21. If each score is divided by 3, find the new mean.

    asked by neha
  174. Statistics

    Choose the right answer, and provide the reasons and calculations. A palmist claims that he can accurately predict the age at death (y) of an individual from the length (centimeters) of age line (x) on the right hand of the individual. A random sample of

    asked by Chris
  175. Biology

    Need help with these 2-- 37. Wings, fins, and arms are limb adaptations that allow mammals to a. live in different environments b. attain diverse sizes c. nurse their young d. communicate with other mammals 38. Which characteristic is NOT widely adapted to

    asked by mysterychicken
  176. Statistics

    Choose the right answer, and provide the reasons and calculations. A palmist claims that he can accurately predict the age at death (y) of an individual from the length (centimeters) of age line (x) on the right hand of the individual. A random sample of

    asked by Chris
  177. Statistics

    Choose the right answers, and provide reasons and calculation To study the effect of change in price of a DVD ($) on the total profit (000, dollars), the analyst of an electronic firm randomly selected 13 retail sales stores. She used the data on total

    asked by Chris
  178. Global History

    Last question i promise. Describe Hitler's blitzkrieg tactics.

    asked by Alex
  179. Science

    A player kicks a soccer ball from ground level and sends it flying at an angle of 30 degrees at a speed of 26 m/s. What is the horizontal velocity component of the ball to the nearest tenth of a m/s?

    asked by Veronica
  180. English

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

    asked by rfvv
  181. English

    Is there any quote on Daisy expressing her being self obbsesiven in the great gatsby? If yes please state it below i cant find any in the book

    asked by Lenea
  182. math

    Melissa baked 8 trays of 5 cookies each. She sold 3 plates of cookies. Which expression correctly represents how many cookies she sold? Circle the best answer.Here are the answer to choose, i don't know how to get the answer? A.(8-3)*12 B.3*12 C.8*12

    asked by Xwm
  183. Math (FST Exponential & Logarithm)

    What is the amount and type of the growth factor of the model: y=3(1.04)^x Determine the equation for the asymptote: y=2+ log(x-3) For the second question, I don't even have an idea what is to be determined.

    asked by Sandy
  184. HONORS CHEMISTRY

    A synthesis of nitrogen dioxide from nitrogen and oxygen. There are 5.000 mol of N2 and 8.000 mol of O2 mixed in a 5.000-L flask. What is the equilibrium constant for the synthesis?

    asked by helpless
  185. physics

    What net force would actually be necessary to stop an automobile of mass 880 traveling initially at a speed of 52.0 in a distance equal to the diameter of a dime, which is 1.8 ?

    asked by hydro
  186. Math (FST Exponential & Logarithm)

    Find the exponential model using y=a(b)^x with (9, 120) & (12, 216) (round to 4 decimal places- show work)

    asked by Shay
  187. English

    1. Talk with your partner using frequency adverbs. You should think of your favorite sport and work in pairs, and practice the dialogue. There are some blanks in the senences, so you should fill them out remembering the dialogue we practiced before. Are

    asked by rfvv
  188. Global History

    Hitler translated his hatred into a program of genocide. How do ethnic, racial, and religious hatreds weaken society? is the answer because people believe race can create conflicts towards different gropus of race

    asked by Alex
  189. chemistry

    A sample of NH4HS (s) is placed into a 2.65 L flask, containing 0.140 mols of NH3 (g). NH4++++>>nh3 (g) + h2s (g) KP = 0.108 wHAT will be the total gas pressure at 25 degrees in atm. I got about 1.361...i don't kno what im doing wrong. im multiplying the

    asked by anonymous
  190. chemistry

    1.30 mol each of CO} and Cl2 are introduced into an evacuated 1.80 L flask, and the following equilibrium is established at 668 K. CO + Cl2 +++> COCl2 kp = 22.5 Calculate partial pressure of COCl2. i get about 30.9. but its wrong. i solved for x,

    asked by anonymous
  191. Economics

    If investment is dependent on income in addition to interest rate (assuming C and G have usual forms) then the Keynesian multiplier will A. Not Exist B. Equal to as compared to the case where investment is not dependent on Y C. Smaller as compared to the

    asked by Salman
  192. English

    Language Analysis Please help me find persuasive techniques/statements in the following article.. I've never done this before, and I've "stewed" over the subject for the last couple of days, but I'm absolutely incensed that the Victorian Government will be

    asked by David
  193. Resume

    Is it essential that you put your address on a resume?

    asked by Lena
  194. English

    Is there any quote in the great gatsby which expresses daisy's self obbsession and her self pride? Please help me, i tried looking the book but couldent find it

    asked by Lenea
  195. decimals

    write decimal for 47.5%

    asked by paul
  196. Chemistry

    Why can lead sulphate not be made in the same was as copper (11) sulphate

    asked by Jose-ann
  197. ALGEBRA

    What happens if you are checking a solution for the rational expression and find that it makes one of the denominators in the expression equal to zero?

    asked by GGIFT
  198. Math

    Francesca has 16/7 ft of string for her kite. Jason has 2 3/4 ft of string for his kite. Katie has more string than either Francesca or Jason. How much string could Katie Have?

    asked by Blake
  199. ALGEBRA

    Rearrange the following equation to solve for “x”: y = sqrt(x) / z How do I even begin???

    asked by GGIFT
  200. organic chemistry

    1. why is phosphoric acid needed in the synthesis of aspirin? 2.what would happen if the phosphoric acid is left out?

    asked by 10ch
  201. math

    tian's daughter will be 5/6 of a year old next week.how many months old will she be

    asked by leslie
  202. 5th grade

    What are the stresses of the words dozen, voyage, forbid, native, language, destroy, notice, distance, carrot, knowledge, captive, spinach, solid, justice, ashamed, program, message, respond, service, and relative??? I suck at these.........I always try

    asked by a person
  203. personal finance

    would you purchase a $100,000 20 year annuity today for $15,000 given a required rate of return of 14.5%? Why, what is the value of the annuity?

    asked by Isabel
  204. MGT

    What are current moral issues facing today's business environment? I have googled this and I have come up with nothing. So can somebody please help me out?

    asked by AMW