Questions Asked on
March 19, 2010

  1. Physics

    A 0.006-kg bullet traveling horizontally with a speed of 1.00 103 m/s enters an 21.1-kg door, imbedding itself 10.4 cm from the side opposite the hinges as in the figure below. The 1.00-m-wide door is free to swing on its hinges. (c) At what angular speed

    asked by Ana
  2. Physics

    Four objects - a hoop, a solid cylinder, a solid sphere, and a thin, spherical shell - each has a mass of 4.59 kg and a radius of 0.252 m. (a) Find the moment of inertia for each object as it rotates about the axes shown in the table above. hoop____ kg·m2

    asked by Ana
  3. Statistics

    If we know that the length of time it takes a college student to find a parking spot in the library parking lot follows a normal distribution with a mean of 3.5 minutes and a standard deviation of 1 minute, find the point in the distribution in which 75.8%

    asked by Pacifico
  4. physics

    A block weighing 8.3 N requires a force of 2.6 N to push it along at constant velocity. What is the coefficient of friction surface? A weight W is now placed on the block and 8.2 is needed to push them both at constant velocity. What is the weight W of the

    asked by Mel
  5. Chemistry

    When 35.0 mL of 1.43 M NaOH at 22.0 degres Celsius is neutralized by 35.0 mL of HCL also at 22.0 degrees Celsius in a coffee-cup calorimeter, the temperature of the final solution rises to 31.29 degrees Celsius. Assume that the specific heat of all

    asked by Google
  6. Math

    An insurance company wishes to examine the relationship between income (in $,000) and the amount of life insurance (in $,000) held by families. The company drew a simple random sample of families and obtained the following results: Family - Income - Amount

    asked by Maiko
  7. physics

    Two 72.0 kg hockey players skating at 5.25 m/s collide and stick together. If the angle between their initial directions was 125 degrees, what is their speed after the collision?

    asked by aaron
  8. physics

    on a air track, a 400g glider moving to the right at 2.00m/s collides elastically with a 500g glider moving in the opposite direction at 3.00 m/s. Find the velocity of the first glider after the collision Find the velocity of the second glider after the

    asked by Alana
  9. math

    A boat is spotted in the water with an angle of depression of 25° from the top of a lighthouse that is 89 feet tall. To the nearest foot, how far away is the boat from the base of the lighthouse

    asked by Honey
  10. Chemistry

    Suppose that two hydroxides, MOH and M'(OH)2, both have Ksp = 1.0 10-12 and that initially both cations are present in a solution at concentrations of 0.0036 mol · L-1. Which hydroxide precipitates first? I know MOH ppt's first...but am not sure how to

    asked by Val
  11. high school physics

    3seconds after a gun is fired, the person who fired the gun hears an echo. How far away was the surface that reflected the sound of the shot? (book answer is 510m) speed of sound 340m/s time = 3seconds dont know what to do

    asked by eugenia
  12. chemistry

    Will this solution form a buffer? 100 mL of .10 M NH3; 100 mL of .15 M NH4Cl Work: NH3= .01 moles NH4Cl= .015 moles .... not sure what else to do. I think we use the H-H equation, but I don't know how to find pKa, or even what pKa is. This should give the

    asked by Vanessa
  13. high school physics

    a string 180 cm long resonates in a standing wave that has 3 segments when driven by a 270hz vibrator. What is the speed of the waves on the string? (answer in book 324 m/s) frequency = 270 hz segments of wave = 3 v= f x wave I don't know what to do....

    asked by eugenia
  14. Physics

    How far apart are an object and an image formed by a 62 cm focal-length converging lens if the image is 2.75X larger than the object and is real?

    asked by Anonymous
  15. Chemistry

    Determine the volume of a 0.550 M KMnO4 solution required to completely react with 2.55 g of Zn.

    asked by Andrew
  16. English

    1. Each one of us has his room. 2. Each one of us has her room. 3. Each one of us has its room. (Is Only #1 correct? What about the others?) 4. Move the chair to the front of the class. 5. Move the chair on the front of the class. 6. Move the chair in the

    asked by rfvv
  17. Pre-Cal

    Find the exact sine value of the angle in standard position whose terminal side goes through the point (-1,5) I do not know when to start

    asked by Abbey
  18. Physics

    A pilot flies an airplane in a vertical circular loop at a constant speed õ = 160 m/s. If the pilot’s apparent weight at the top of the loop is one-third of his true weight when he is on the ground, find the radius R of the plane’s circular path.

    asked by Drew
  19. English

    1. We should not eat and drink in the library. 2. We should not eat or drink in the library. (What is the difference between them?) 3. We should not both eat and drink in the library. (Does this mean that we can either eat or drink? Does #3 mean #1?) 4. We

    asked by rfvv
  20. Physics

    A 600 N uniform rectangular sign 4.00 m wide and 3.00 m high is suspended from a horizontal, 6.00-m-long, uniform, 90-N rod. The left end the rod is supported by a hinge and the right end is supported by a thin cable making a 30.0° angle with the

    asked by Ana
  21. Chemistry

    A typical fat in the body is glyceral trioleate, C57H104O6. When it is metabolized in the body, it combines with oxygen to produce carbon dioxide, water, and 3.022 x 10^4 kJ of heat per mole of fat. B)How many kilokoules of energy must be evolved in the

    asked by Jayden
  22. Chemistry

    I am not sure about this question I tried a) but am very confused with b. Experiments were preformed with four metals and solutions of their ions: A- A+, B-B2+, C-C2+, D-D2+. The results of the experiment were: D2+ + C --> No reaction B2+ + C --> B + C2+

    asked by Lynn
  23. English

    1. We should not scribble in books in the library. 2. We should not write down in books in the library. 3. We should not make a noise in the library. 4. We should not walk making sounds in the library. 5. We should not tear books in the library. 6. We

    asked by rfvv
  24. MATH 209

    Ace manufacturing has determined that the cost of labor for producing x transmissions is 0.3x2+400x+550 dollars, while the cost of materials is 0.1x2+50x+800 dollars. Find the total cost of producing x=500 transmissions.

    asked by Anonymous
  25. Biology

    I'm stuck on these--- 9. Most of the end products of digestion are absorbed into the circulatory system from which organ? a. liver b. pancreas c. large intestine d. small intestine 11. Pancreas is to small enzymes as a. stomach is to saliva b. stomach is

    asked by mysterychicken
  26. classroom instruction

    • Write a 200- to 300-word response describing how you might teach this concept to students in a lower elementary grade and to students in a middle school grade. i picked problem solving i have this so far. i guess for each grade level (elem and middle

    asked by scooby
  27. personal finance

    Beverly is planning for her retirement.She has determined that her car is worth $10,000,her home is worth $ 150,000,her personal belongings are worth $100,000 and her stocks and bonds are worth $300,000.She owes $50,000 on her home and 5,000 on her

    asked by vedrana
  28. Math

    If sin(x) = /45 and cos(y) = 5/13 with both x and y terminating in quadrant 1 find the exact value of cos(x-y) cos(4/5 - 5/13) Is this what I would do?

    asked by Bryan
  29. Chemistry

    Use the data in this table to calculate the solubility of each sparingly soluble substance in its respective solution. (a) silver bromide in 0.066 M NaBr(aq) mol · L-1 I know how to do this one, found it to be 1.167E-11 which is correct. (b) nickel(II)

    asked by Val
  30. Biology

    40. Explain how fish gills maximize the surface area available for oxygen exchange. Need help on this Thanks -MC

    asked by mysterychicken
  31. math

    Bayside Insurance offers two health plans. Under plan A, Giselle would pay the first $150 of her medical bills, plus 40% of the rest. Under plan B, Giselle would pay the first $250, but only 35% of the rest. For what amount of medical bills will plan B

    asked by Kristen
  32. physics

    An object of mass 10.0 kg is initially at rest. A 100 N force causes it to move horizontally through a distance of 6.00 m. What is the change in the kinetic energy of this object?

    asked by kang
  33. English

    1.He delayed doing/to do his homework. 2.He suggested going/to go on a picnic. 3.He quit smoking/to smoke. 4.He avoided meeting/to meet the lady. 5.He proposed going abroad/to go abroad. (Which one is correct? Do we have to use only gerunds in the

    asked by rfvv
  34. Physical Science

    Consider the current-carrying wires in the figure. Both cases consist of long straight wires carrying a current I. In both cases, the wire is also bent in the shape of a circular loop of radius R. The only difference is in how the bending of the wire is

    asked by Stephanie
  35. Geography

    17. Why have the people of West Africa started to work at the local level to help their economies? a. They have learned that their governments alone can do little to improve economic conditions b. Foreign countries have stopped all economic aid to West

    asked by y912f
  36. Biology

    10. The mouth, small intestine, and kidneys have functions that involve the a. digestion of food, synthesis of vitamins, and filtering of the blood b. intake, digestion, absorption, and elimination of food and wastes c. secretion of bile, digestion of

    asked by mysterychicken
  37. Algebra

    Factor completely. If the given polynomial is not factorable, indicate so by writing prime. 4x^3+8xy^2

    asked by Chelsea
  38. History

    Why was Andrew Jackson considered a "common man" political wise, not how he lived. I mean what three or two events and decisions did Jackson do during his presidency that made him the citizen president?

    asked by Paul
  39. Math

    In printing an article of 48,000 words, a printer decides to use two sizes of type. Using the larger type, a printed page contains 1,800 words. Using a smaller type, a page contains 2,400 words. The article is allotted 21 full pages in a magazine. How many

    asked by Bobbi
  40. 11th grade

    200 ml of a gas at 27oC and 1140 Pa pressure is transferred to a vessel of 450 ml capacity. What temperature is to be applied, if the pressure applied is 2000 Pa?

    asked by Silva
  41. statistics

    A statistics practitioner formulated the following hypothesis: Ho: population mean=200 H1: population mean

    asked by Adam
  42. Math 157-1

    Use the data in the grade-distribution Use the data in the grade-distribution table below to construct a circle graph showing the distribution of grade types in Ike’s class. Grade Frequency A 2 B 8 C 11 D 2 F 1 How would the graph change if there were

    asked by Tyga
  43. English

    Hey, I need your suggestions on this one. Could you please name some of the most beautiful, most emotional pieces of writing you've ever read. It can be poetry or prose or titles of novels or even someting you've written yourself, if your gonna do that can

    asked by Me
  44. math

    If you can drive your car 540 miles on 26 2/3 gallons of gasoline, how many miles can you drive on one gallon?

    asked by Anonymous
  45. INTRO TO STATISTICS HYPOTHESIS TESTING

    Math Horizons is a publication of the Mathematical Association of America. A recent issue reports that in the United States, graduating mathematics majors who also have studied actuarial science have an average first year income of 49,600. Suppose a random

    asked by Gweedo8
  46. Art

    What are the differences between film and popular cinema? I can not find much about this. If anyone has any sites they can refer me to i would greatley appriciate it. Thank you

    asked by Ashley
  47. Geography

    14. Scientists believe that the Great Rift Valley was created by a. volcanic eruptions b. tectonic forces c. broadleaf evergreen d. mid-latitude deciduous B

    asked by y912f
  48. English

    Hello, class. We are going to do an activity. I want you to interview two of your new friends. You can go to any students who you do not know well in this class. Thre are two memos on the page of the textbook. You should fill in the blanks with the

    asked by rfvv
  49. Geography

    22. What factor explains why the Democratic Republic of Congo has been economically unsuccessful? a. corrupt national leadership and inefficient use of resources b. a lack of natural resources c. a lack of rivers that could be used for transportation d.

    asked by y912f
  50. Math

    Given:a and b are first-quadrant angles, sin a = 5/13 , and cos b = 3/5 , evaluate sin(a - b).

    asked by bill
  51. Algebra 3

    sin(180 + 0)

    asked by bill
  52. algrebra

    The function W(d)=0.112d approximates the amount in centimeters of water that results from d cm of snow melting. Find the amount of water that results from snow melting from depths of 20cm,38com, and 62cm.

    asked by PENNY
  53. Math 30

    Describe how the graph of y=f(-2x+6)+7 can be obtained from the graph of y=f(x). I am not understanding this transformation unit at all.

    asked by Juliet
  54. Math

    solve for x: log4 X - log4 2 = 2 log(2x) = 2 Now what do I do?

    asked by Hannah
  55. 5th grade math

    What is the highest number of pi?

    asked by Nate
  56. College Chem

    Is the percentage of sodium in pure table salt 39.34%?

    asked by London
  57. Education

    SRA, I have a hard time finding quality research material using the google search engine. Do you have any suggestions about any tutorials I can take that will teach me how to properly search the internet for my papers? Thank you,

    asked by Tracy
  58. math116

    What does it mean for a system to be consistent or inconsistent?

    asked by Anonymous
  59. Math - Caculus

    How do I evaluate the limit of e^tan(t) as t approaches pi/2 from the positive side?

    asked by Stuck
  60. statistics

    a study found that the average time it took a person to find a new job was 130 days. If a sample of 36 job seekers was surveyed, find the 95% confidence interval of the mean. Assume the standard deviation of the sample is 12 days.

    asked by dell
  61. maths

    c) An equilateral triangle of side 3 cm each is given, How many triangles can be made from this equilateral triangle of 1cm?

    asked by sandhya
  62. Algebra

    Find the maximum value of the objective function z=24x+7y subject to the following constraints : 0¡Üx¡Ü10, 0¡Üy¡Ü5,3x+2y¡Ý6.

    asked by Anonymous
  63. american history

    Francis Cabot Lowell led a group of businessmen who? A. built a centralized textile factory in massachusetts B. ended that market revolution C. received the first state charter for a bank D. cashed in so many bank notes that they led to a panic in 1837

    asked by jake
  64. critical thinking

    identify the fallacy: The reason I don't accept evolution is that ever since Darwin, scientists have been trying to prove that we evolved from some apelike primate ancestor. Well, they still haven't succeeded. Case closed

    asked by Anonymous
  65. Math

    2/5(3x-1)Greater than 8.please solve

    asked by Tina
  66. English

    PLEASE HELP! I am stuck on writing A descriptive essay 500-750 world, My Topic An elderly person

    asked by Lori
  67. algebra

    Cole's two student loans totaled $31000. One of his loans was at 2.8% simple interest and the other at 4.5%. After one year, Cole owed $1024.40 in interest. What was the amount of each loan?

    asked by Tasha
  68. Math(Please check)

    solve for x: log4 X - log4 2 = 2 log(2x) = 2 Now what do I do?

    asked by Hannah
  69. business law

    please can you help me in this: Ethical Systems Table 1. Fill in brief definitions of each primary ethical theory. 2. Identify alternate names or variations of each ethical system based on your reading of the text and supplemental materials. Match the

    asked by bluesea
  70. Pre-Cal

    Find the maximum value of f(x) = -2x^2 + 12x - 14 Do i have to set this equal to o to solve?

    asked by Abbey
  71. Africa

    Which of the following is true of both Libya and all the nations of the Maghreb?

    asked by Anonymous
  72. Math

    If sin(x) = 4/5 and cos(y) = 5/13 with both x and y terminating in quadrant 1 find the exact value of cos(x-y) I know that the denominator will be 65

    asked by Bryan
  73. math

    what would be a good window for the graph of f(x) = -x^5 + 5x^3 - 3x + 15 I think that -10< x

    asked by Zack
  74. math

    the product of 5/8 and 64 is ........less than 48.

    asked by alam
  75. 5th grade

    What events led up to the Civil War? A State's Rights B Slavery C All of the above

    asked by Jacob
  76. math

    Dave has received scores of 85,87,88 and 85 on his algebra test. What scroce must he receive on the fifth text to have an overall text score average of at least 88? please explain

    asked by Help me please
  77. poetry

    In school i have to write a POEM about story from the newspaper. can anone help me? that's the story: TAMWORTH ONE COPS IT IN COPSE, ENDING GREAT ESCAPE. After more than a week on the run the Sundance Pig was not going to come quietly. His partner might

    asked by Patric
  78. Trig 30

    How would I find the general solution for x/2=2pi/3 and x/2=pi/3?

    asked by Sandy
  79. English

    What type of writing dominated the American Age of Reason?

    asked by Nate
  80. algebra

    Could you help me with this? find the real zeros of f(x) = x^3-8^2+9x+18(x-8^2+9x+18 I know it must be real simple. I have a block somewhere. Thanks I think I understand the Descartes rule of sign change. This equation has 2 sign changes. The total amount

    asked by Dee
  81. physics

    Imagine an airplane passenger looking down on two automobiles side by side on the ground. According to the Rayleigh criterion, at what maximum altitude will the passenger just resolve them as two if their center-to-center separation is 3.3 m? Assume that

    asked by Andy
  82. math

    -4 L.T. 3X+5 AND 3X+5 L.T. 20 solve

    asked by Jennifer
  83. Geography

    18. Which sentence below is a cause-effect statement? a. Nigerian students and workers often protested during the structural adjustment period b. One of the surprising facts about West Africa is that the Sahara was not always a desert c. Because of their

    asked by y912f
  84. Math(Check)

    Given that tan(Q) = -3/4 and Q is in the second quadrant tell the value of the cosQ cos=-4/5 Correct?

    asked by Hannah
  85. 11th grade

    x2+y2+2x+4y=-2

    asked by brenea
  86. personal finance

    the maximum tax rate on estates and gifts: a)is gradually declining b)is gradually increasing c)has remained constant d)has increades sharply IS A CORRECT ANSWER?THANK YOU:)))

    asked by vedrana
  87. math 12

    Could you please show me how to solve this question.If 2 cos A-1=0, where 0< or = A < 2pi what is A equal to?

    asked by Tori
  88. Please help!!!)

    If sin(x) = /45 and cos(y) = 5/13 with both x and y terminating in quadrant 1 find the exact value of cos(x-y) cos(4/5 - 5/13) Is this what I would do?

    asked by Bryan
  89. Pre-Cal

    Find the inverse of the function f(x) = 3^x+2

    asked by Mark
  90. math

    suppose that an experiment has four possible outcomes. a,b,c and d. if p(a)= p(b)= p(c) and p(d)= 2p(a) what is the probabilty of each event

    asked by walls
  91. Algebra

    factor completely 256-x^4

    asked by Chelsea
  92. College Chem

    Please tell me if this is correct...Finding the mean, the average deviation from the mean, the standard deviation from the mean, and the relative deviation from the mean...of 10.1, 10.4 and 10.6 Mean-10.4 Average deviation-0.167 Standard deviation-0.25

    asked by London
  93. Help!!!

    sin x / 1-cosx is equivalent to: sin x / 1 + cos x Is this right?

    asked by Hannah
  94. math

    If sin(x) = /45 and cos(y) = 5/13 with both x and y terminating in quadrant 1 find the exact value of cos(x-y) cos(4/5 - 5/13) Is this what I would do?

    asked by Bryan
  95. History

    What is the history of the Temple Mount? I've been looking up a lot of information for this but some of it is too much and I need a more condensed infomation.

    asked by Astrid
  96. Finance

    collins office supplies

    asked by Anonymous
  97. physics

    A railroad car rolling along by itself is passing by a grain elevator, which is dumping grain into it at a constant rate. (a) Does momentum conservation imply that the railroad car should be slowing down as it passes the grain elevator? Assume that the

    asked by Sandhya
  98. science

    what helps digest your food?

    asked by demi
  99. U.S. History 5th grade

    Who was the 21 president?

    asked by Jacob
  100. Biology

    14. Which of the following is the blood vessel with the largest diameter? a. capillary b. artery c. vein d. venule Not sure...? 16. As a defense against pathogens, mucous membranes a. cover all of the body's surfaces to act as an impenetrable barrier b.

    asked by mysterychicken
  101. math

    what fraction of aright angle is 18

    asked by anand
  102. english

    Which sentence is correct? Anyone who wants a copy of the game may have it for their video library or Anyone who wants a copy of the game may have it for his or her video library?

    asked by janice
  103. precal

    solve the equation on the interval [0,2pi) cos(x+pi/4)-cos(x-pi/4)=1

    asked by john 2020
  104. Precalc.

    solve the equation on the interval [0,2pi) sin^2x=1

    asked by Anonymous
  105. Physics

    (a) How far from a 53.6 mm focal-length lens must an object be placed if its image is to be magnified 2.12X and be real? (b) What if the image is to be virtual and magnified 2.12X?

    asked by Anonymous
  106. ALGEBRA

    sqrt(5) * sqrt(10) * sqrt(x^2) = how can i solev this??

    asked by GGIFT
  107. psychology

    Explain how having a negative self-schema affects one’s social interactions. How does social intelligence affect one’s responses in any given situation? How might a person’s self-guides impact his or her perspective on the world?

    asked by Devin
  108. English

    1. This book is really fun. 2. This book is real fun. 3. This book is great fun. (Which one is correct? Are all corect? What is the part of speech of 'fun'?) 4. Shine a light on the back of the stage. 5. Shine a light at the back of the stage. 6. Shine a

    asked by rfvv
  109. math

    Round off 76.24491 to the nearest hundredth.

    asked by sam
  110. Art

    What are the differences between film and popular cinema?

    asked by Joe
  111. Math

    Find the simple interest for the indicated length of time: $7,211 at 12% interest for 1.7 years A) $2336.36 B) $774.23 C) $1384.51 D) $1471.04

    asked by Natatlie
  112. English

    How long did the journey to Virginia actually take Smith and the colonists?

    asked by Nate
  113. english

    What happened to John Howland?

    asked by Nate
  114. computers

    On an Ethernet 10BaseT network, all computers are connected with a hub. Recently a network-intensive application had been installed, and users are complaining that response times are quite slow on the network. You decide that you need to upgrade the

    asked by TaKayla
  115. Math

    The following interval represents the solution of an absolute value inequality. Find an example of an absolute value inequality whose solution is described by this interval. [-2,1] please expalin

    asked by Help:(
  116. trig

    How do you convert polar coordinates to Cartesian coordinates? And vise versa.

    asked by dan
  117. English

    Why is Taylor's passage 'With rivers like green ribbons smaragdine' rich in imagery?

    asked by Nate
  118. math

    How do you convert polar coordinates to Cartesian coordinates? And vise versa.

    asked by dan
  119. math

    2x-5/10 less than -5 or 2x-5/10 greater than 9. solve the compound inequality.

    asked by Sue
  120. science

    What is a result of scientific research in the field of genetics

    asked by Melanie
  121. sports

    hi Im looking for job discription on a juniour rugby coach, seniour and mens i have tried the internet but it wont let me open files about it please help

    asked by reece
  122. history

    I have to do a brochure on a famous place around the world. A while ago I saw in the History channel about this rock somewhere, i forgot what it's called and I forgot where it is. I heard that it is said that if you move the rock, it will cause the end of

    asked by Lola
  123. Math(Urgent)

    Find the exact values of the vertical asymptotes for o is less than or equal to Q is less than or equal to pi for the function y= cot(3Q) I need to show my work for this one but I do not know how to do this.

    asked by Hannah
  124. ACC/220

    a 200- to 300-word response explaining what information would be found in each of the following groupings on a classified balance sheet, and how that data could indicate the future success or failure of a business: Current Assets Long Term Investments

    asked by Anonymous
  125. world history

    who is Rosa Parks relitives

    asked by carly
  126. Chemistry

    Use the data in this table to calculate the solubility of each sparingly soluble substance in its respective solution. (a) silver bromide in 0.066 M NaBr(aq) mol · L-1 I know how to do this one, found it to be 1.167E-11 which is correct. (b) nickel(II)

    asked by Val
  127. Math(Please Check)

    in which one quadrant is the cosecant negative and the secant positive. Quadrant 4. Is this correct?

    asked by Hannah
  128. math 12

    If 2cos A-1=0 where 0

    asked by Tori
  129. math (check)

    in which one quadrant is the cosecant negative and the secant positive. Quadrant 4. Is this correct?

    asked by Hannah
  130. accounting

    sold 7500 shares of commond stick at $86 per share, received cash

    asked by J
  131. geometry

    the ratio of two supplementary angles is 2:7. what is the measure of the smaller angle

    asked by Anonymous
  132. Algebra

    This is a quadratic equation problem I'm not sure how to start. Suppose you are an events coordinator for a large performance heater. One of the hottese new Broadway musicals has just started to tour. Supply information about projected ticket sales. you

    asked by Carson
  133. chemistry

    what are some impressive lab acids that i could name and say what they're used for, for hw (for MONDAY)

    asked by pepper
  134. Math

    Find the exact values of the vertical asymptotes for o is less than or equal to Q is less than or equal to pi for the function y= cot(3Q) I need to show my work for this one but I do not know how to do this.

    asked by Hannah
  135. Math

    sin x / 1-cosx is equivalent to: sin x / 1 + cos x Is this right?

    asked by Hannah
  136. psy 270

    explain one way in which sociocultural biases in testing might pose problems for assessing mental retardation.

    asked by trudy
  137. Science

    How does a doctor diagnose the flu? What tests are performed? What samples need to be taken?

    asked by Christina
  138. MATHS...PLEASE HELP

    Differentiate sin(cubed)x with respect to x. Hence find (integration sign) sin(squared) x cosx dx. ALSO Find the equation of the tangent to the curve y = 2 sin(x-(pie divided by 6)) at the point where x = (pie divided by 3) .

    asked by john peaterson
  139. Math

    Find th evertex of the parabola given by f(x) = x^2 - 3x + 4 My answer was (3,13). Am I correct?

    asked by Katie
  140. math 12

    Does anyone know how to do this question? The cross section of the roof of a house is modelled by the function y= -5/12|x-12|+5 I need to find the slope, height,and length of both sides including the base of this isosceles triangle. I'm having a extremely

    asked by Karrie
  141. Math(Urgent!!!)

    sin x / 1-cosx is equivalent to: sin x / 1 + cos x Is this right?

    asked by Hannah
  142. adult education

    what type of input text in business case analysis

    asked by mahmood
  143. math

    how do you find the surface of a rectangluar prism??????? need help

    asked by PAVLEEN
  144. Math

    Find the vertex of the parabola given by f(x) = x^2 - 3x + 4 My answer was (3,13). Am I correct?

    asked by Katie
  145. math

    6/9+2/3

    asked by Anonymous
  146. Grammar

    Which sounds better my brother knows more about technology than me or I

    asked by Barry
  147. science

    Explain why using standard measurements is useful

    asked by spencer
  148. math

    how could thinking about 90 tens help you find 1901-297?

    asked by m
  149. math

    how do you find the area of a polygon

    asked by joenett
  150. 11th grade

    200 ml of a gas at 27oC and 1140 Pa pressure is transferred to a vessel of 450 ml capacity. What temperature is to be applied, if the pressure applied is 2000 Pa?

    asked by Silva
  151. College Chem

    With a relative standard deviation of 32.51+_ 0.15. Cant the result of 32.14 and 32.75 be discarded because they are out of the .15 range?

    asked by London
  152. IT web

    How has internet marketing come into play with the success of an E-Commerce site?

    asked by JOHN
  153. math

    is a triangle with sides 7-7-7 a right triangle

    asked by PAVLEEN
  154. math

    what is the area of a rectangle which one side is 10 and diganale it is 32

    asked by PAVLEEN
  155. math

    can a object with sides of 17,15,7 a right angle triange

    asked by PAVLEEN
  156. math

    what is a rigt triangle

    asked by PAVLEEN
  157. frictonsplease

    please help with frictions thanks

    asked by jacob
  158. history

    Explain the policy of engagement

    asked by jess
  159. macroeconomics

    do you experience loss aversion as a consumer?

    asked by jenny
  160. Algebra

    |x+9| is greater than or equal to 0. Solve and graph the solution set on a number line.

    asked by Anonymous
  161. algebra

    Help! 2(x-4)-(x+2)= (x+2)(x-4) solve for x

    asked by Terri
  162. Math

    A park district paid their director $19,500 in 1960. In 2000 that same park district paid their director $40,000. Determine the average rate of increase per year to the nearest tenth of a percent This is my answer 40,000-19,500=20,500/100=205% is this

    asked by Natatlie
  163. vocabulary

    which of there words probably comes from the latin word conducere,meaning to lead together? A)complete B)control C)convince D)conduct i think it is (B) or (D)

    asked by george
  164. english

    Upon passing the site of her burned home, Bradstreet

    asked by Nate
  165. algebra 2

    please help. Simplify the square root of 7/8y and show all work

    asked by Taylor
  166. Calculus

    The radius of a tank can not exceed 5m, and the height can not exceed 12 m. Is it possible to construct a tank with a volume of 900m^3? If it is possible, determine the minimum amount of material required to make the tank. When i solve it, the radius

    asked by Jeff
  167. physics

    if a clown lets go of a rope that has an object attached to it traveling in a circular motion, what will happen to the object

    asked by samantha