1. question+ stuck

    how is the graph of f(x)= x^2-4x be used to obatin the graph of y=g(x)? I am stuck and unsure how to get out of this one so can you please help? thanks! You must define g(x). Is g(x) the inverse function of f(x)? well the function f(x)= x^2-4x has two

    asked by bob on September 7, 2006
  2. Math

    Five children play a game in which players either gain 1 point or lose 1 point. After several games, the number of points won is equalto the number of points lost. If no two children have the same final score and the overall winner has fewer points than

    asked by Eric on May 28, 2011
  3. math

    A plane P cuts a sphere O in a circle that has a diameter of 20. If the diameter of the sphere is 30 how far is the plane from O?

    asked by susan on April 23, 2014
  4. physics

    1) what is the efficiency of a frictionless inclined plane? 2) how would you increase the efficiency pf an inclined plane?

    asked by Navroz on March 20, 2011
  5. math

    on a scale drawing, the length of a plane is 45 cm. The actual length of the plane is 90 m. What is the scale used?

    asked by Anonymous on May 26, 2017
  6. Geometry

    if plane angle DAB = (67 + 4x) degrees, than wht is plane angle DAB?

    asked by al on February 10, 2011
  7. physics

    A piece of gold wire is used to form a circular loop of radius 12.3 cm. The wire has a cross-sectional area of 11.1 mm^2. Points A and B are 90.0° apart. Find the resistance between points A and B.

    asked by Eric on February 8, 2011
  8. geometry

    An equilateral triangle ⌂ABC has two of its vertices below the x-axis, has the third vertex C above the x-axis, and contains the points A=(0,0)and B=(1,0) on its sides. How long is the path traced out by all possible points C, to two decimal places?

    asked by un on June 13, 2017
  9. calculus: multivariable

    Find the points on the hyperboloid x2 −y2 +2z2 = 1 where the normal line is parallel to the line that joins the points (3,−1, 0) and (5, 3, 6). Please show me how to do it..the answer is [+- rad 6/(3), +- 2rad 6/(3), +- rad6/(3)]

    asked by sara on May 3, 2008
  10. Comp 155

    Based on the readings in Ch. 6, Section 2 of the text, identify key points to keep in mind when writing a topic sentence. How might these key points help you write effectively?

    asked by Camille on August 16, 2011
  11. GEOMETRY......circle

    Circles Γ1 and Γ2 intersect at 2 distinct points A and B. A line l through A intersects Γ1 and Γ2 at points C and D, respectively. Point E is the intersection of the tangent to Γ1 at C and the tangent to Γ2 at D. If ∠CBD=30∘, what is the measure

    asked by HELP ME...uRGENT! on April 18, 2013
  12. Math

    determining minimums and maximums Approximate the local minimum points and local maximum point of the function g(x)= x^4-5x^3+ 7x^2-3x -5 using that the slope of a tangent line at these points is zero/

    asked by M on October 23, 2015
  13. Math11U

    A surveyor in an airplane observes that the angle of depression to two points on the opposite shores of a lake are 32 and 45 degrees, respectively. What is the width of the lake to the nearest metre, at those two points?

    asked by Kitkat on July 22, 2010
  14. physics

    a 100Nforce was applied to pull a 20 kg box up on a rough inclined plane that makes ans angle of 30. if the applied force makes an angle of 20 with the inclined plane the find the coefficient of friction when the accleration of the box is 3m/s^2

    asked by anthony on November 1, 2011
  15. Math - Trigonomety

    A plane is flying at a height of 1000 feet. A passenger on the plane sees a tree and realizes the angle of depression to the top of the tree is 15 degrees and the angle of depression to the bottom of the tree is 25 degrees. How tall is the tree?

    asked by Caleb on April 27, 2014
  16. physics

    A 63.8 N crate is pulled up a 5.22 m inclined plane by a worker at constant velocity. If the plane is inclined at an angle of 59 degree to the horizontal and there exists a constant frictional force of 32.6 N between the crate and the surface, what is the

    asked by need help please on April 7, 2013
  17. Inverse trigonometric function

    How to solve without calculator 1. sin(arctan(12/5)) 2. cos(arccosx + arcsinx) Thanks. You have to know your right triangles. 5 12 13 is one. If the tan is 12/5, then the sin is 5/13. Draw a pic to confirm that. On the second: Think. Draw any right

    asked by Jen on April 8, 2007
  18. Physic

    1. The image shows a man pulling a truck. If it does not show up for you for whatever reason, this is a description of the image. Assume it takes 2500 N for him to pull the truck along the road at a constant speed. a. Find the net force acting on the

    asked by Anonymous on October 22, 2018
  19. physics

    A rescue plane is flying horizontally at a height of 132 m above the ground. The pilot spots a survivor and releases an emergency kit with a parachute. The kit descends at a constant vertical acceleration of -6.89 m/s2 and the initial plane horizontal

    asked by don't worry about it on May 10, 2017
  20. General Homework

    I have an assignment where I have to use bullet points. I already have an idea with many bullet points. However, under one of the bullet point idea, I have a few more ideas. Do I put those ideas in bullet points or what is the proper format?

    asked by Elizabeth on March 23, 2015
  21. MATH

    For the floor plans given in exercise27, determine whether the side through the points (2, 3) and (11, 6) is perpendicular to the side through the points (2, 3) and (-3, 18). Compute the slopes of the two lines. If the product of the slopes is -1, then te

    asked by stacy on February 15, 2007
  22. math!

    1. in a basketball game, mike scored 20% of the team's points. if mike scored 22 points, how many points did the team score as a whole? - is the answer 110 pts 2. sports authority was having a sale. all their merchandise was 20% off the original price. the

    asked by Sara! on May 31, 2010
  23. chem

    what are the normal freezing points and boiling points of the following solutions: a. 21.1g NaCl in 135mL of water b. 15.4g urea in 66.7 mL water?

    asked by paul on January 12, 2011
  24. Math URGENT REALLY FAST HELP

    find the inflection points of the function: f9x)=x^2(ln(x)) Now I don't think there are any inflection points because both intervals are concave up. Am I right, or could someone help me if this is wrong?

    asked by Anonymous on April 12, 2011
  25. slope(algebra1)

    can a slope be 158/120? if there are multiple data points on a graph that aren't the same (ex: up 2 over 3), do i use the first and last points to find the slope?

    asked by amanda on November 3, 2008
  26. Math Graphs

    If you were going to graph this function what would be the coordinates of the points that you would plot? Is this a linear or nonlinear function? Explain. f(x)= 2x+5 inputs (5) and (8) f(8)= 2(8)+5=16+5=21 f(5)= 2(5)+5=10+5=15 Would the points be (5,15)

    asked by katie on September 1, 2011
  27. Calculus

    The graph A(x) has points (-3,0), (0,-2), (1,0) and (2,3). If C(x) is defined by C(x)=A(2x+3), then what is the domain and range of C and how would the graph of C(x) look like? Also, is there any way to find what the actual equation of A(x) is with the

    asked by Chloe on September 6, 2011
  28. chem

    what are the normal freezing points and boiling points of the following solutions: a. 21.1g NaCl in 135mL of water b. 15.4g urea in 66.7 mL water?

    asked by paul on January 12, 2011
  29. Math

    Find all critical points and determine which critical points are extrema by testing intervals. y=-2x^4+3x^2 I found the derivative which is: -8x^3+6x

    asked by Steffi on December 16, 2015
  30. Math

    Histogram, with data hours of sleep per night at 5 to 11 hours and scores from a quiz starting at 38 points to 92 points, how would that look?

    asked by Dylan on October 4, 2009
  31. algebra

    Find all points on the x-axis that are 10 units from the point (7, 6). (Hint: First write the distance formula with (7, 6) as one of the points and (x, 0) as the other point.)

    asked by Barbara on October 12, 2014
  32. Comp 155

    identify key points to keep in mind when writing a topic sentence. How might these key points help you write effectively

    asked by Me on August 19, 2011
  33. math

    If you were going to graph this function what would be the coordinates of the points that you would plot? Is this a linear or nonlinear function? Explain. f(x)= 2x+5 inputs (5) and (8) f(8)= 2(8)+5=16+5=21 f(5)= 2(5)+5=10+5=15 Would the points be (5,15)

    asked by katie on September 1, 2011
  34. Math

    Don't understand how to solve this problem: 12. A, B, C, and D are points on a line, and the lengths of the line segments are: AB = 12, BC = 4, CD = 7, and DA = 15. Which of the following is a possible order for the points? A.A,B,C,D B. A,C,D,B C. A,D,C,B

    asked by Vivian on January 13, 2018
  35. chemistry

    Why do molecular compounds have low melting points and low boiling points relative to ionic substances?

    asked by Kate on January 7, 2009
  36. English

    Lord of the flies by William Golding Turning points? i would like to know some turning points that impacted Ralph and how he dealt with it.

    asked by Sam on November 10, 2009
  37. Algebra

    Find all points on the x-axis that are 10 units from the point (7, 6). (Hint: First write the distance formula with (7, 6) as one of the points and (x, 0) as the other point.)

    asked by Kim on October 6, 2014
  38. College Calculus

    The graph A(x) has points (-3,0), (0,-2), (1,0) and (2,3). If C(x) is defined by C(x)=A(2x+3), then what is the domain and range of C and how would the graph of C(x) look like? Also, is there any way to find what the actual equation of A(x) is with the

    asked by John on September 7, 2011
  39. geometry

    if a scale factor of four is used, the points in the image will be eight times as far from the origin as at he pre-image points true or false

    asked by Barb on June 28, 2013
  40. Calculus

    The graph A(x) has points (-3,0), (0,-2), (1,0) and (2,3). If C(x) is defined by C(x)=A(2x+3), then what is the domain and range of C and how would the graph of C(x) look like? Also, is there any way to find what the actual equation of A(x) is with the

    asked by John on September 6, 2011
  41. English 11

    When writing an article summary i have to say if i agree with, disagree with, or qualify the main points, what does qualifying the main points mean?

    asked by Anonymous on August 18, 2012
  42. Algebra

    Find the distance between (7,0) and (-7,0) The y coordinates of the two points are the same, and the difference in x coordinates is 7 - (-7) = 14. What does that tell you about the direction and length of the line connecting the two points?

    asked by Tomika on June 27, 2007
  43. Psychics

    What is the electric potential between two points 5.0 centimeters apart if the electric field between those points is a constant 250 Newtons/meter?

    asked by Dee on June 18, 2016
  44. Physics

    What is the electric potential between two points 5.0 centimeters apart if the electric field between those points is a constant 250 Newtons/meter?

    asked by Dee on June 18, 2016
  45. geometry

    the points K and M are points of tangency. Find the value of x. 4x+7=7x-8

    asked by tanesha on February 8, 2012
  46. 9th grade

    what is the set of points equidistant from two given points A & b?

    asked by Anonymous on December 11, 2010
  47. Physics

    A block with mass m1 on a plane inclined at angle  to the horizontal is connected to a second hanging block with mass m2 by a cord passing over a small, frictionless pulley, as shown. The coefficient of static friction is us and the coefficient of

    asked by modjadji on April 14, 2012
  48. Calculus

    For y=(1/4)x^4-(2/3)x^3+(1/2)x^2-3, find the exact intervals on which the function is a. increasing b. decreasing c. concave up d. concave down Then find any e. local extreme values f. inflection points --- I thought it'd be better to find extreme values

    asked by Anonymous on June 1, 2010
  49. HELP!! Chemistry

    Draw a Lewis structure for SO(subscript 2) in which all atoms obey the octet rule. Show formal charges. Draw a Lewis structure for SO(subscript 2) in which all the atoms have a formal charge of zero. Explicitly showing zero charges is optional.

    asked by anonymous on April 8, 2013
  50. Math: Geometry

    The bases of trapezoid $ABCD$ are $\overline{AB}$ and $\overline{CD}$. We are given that $CD = 8$, $AD = BC = 7$, and $BD = 9$. Find the area of the trapezoid. [asy] unitsize(1 cm); pair A, B, C, D; A = (1,2); B = (3,2); C = (4,0); D = (0,0);

    asked by I see you have graph paper. You must be plotting something. on November 20, 2015
  51. Geometry

    Prove that the tangents to a circle at the endpoints of a diameter are parallel. State what is given, what is to be proved, and your plan of proof. Then write a two-column proof. Hint draw a DIAGRAM with the points labeled. Can some one please check for me

    asked by DANIELLE on July 5, 2007
  52. Geometry (math)

    Suppose line p is perpendicular to line s and line q is perpendicular to line s. are p and q parallel under all circumstances? Draw a figure to illustrate your answer . I doubt if we can post pictures on this,because my question asks to draw a figure.I

    asked by Naila dar on November 19, 2013
  53. Math

    Cup A has 50% pink balls and 50% green balls. Cup B has 50% orange balls and 50% green balls. You and you friend both draw one chip from each bowl. What is the probability that you both draw at least one white chip?

    asked by Jay on December 9, 2008
  54. Physics

    Instructions: Read the following paragraph carefully. Then use what you know about momentum, work, and energy to answer the following questions. Be sure to show your work. You are a traffic accident investigator. You have arrived at the scene of an

    asked by Anonymous on December 15, 2014
  55. math

    Fixed points of f? f(x) = x^2+13/12x - 1/2 a) use algebra to find the fixed points and classify them. b) use the gradient criterion to determine an interval of attraction for one of the fixed points of f c) find exact values of the 2nd and 3rd terms of the

    asked by Chamberlain on May 3, 2010
  56. Math

    It is 780 km from Lethbridge to Fort McLeod. One plane leaves from Lethbridge going 200 km/h. A second plane leaves from Fort McLeod going 300 km/h. When do they pass in the sky?

    asked by Joe on January 12, 2016
  57. physics

    A plane passes over point A with a velocity of 8000 m/s north. Forty seconds later it passes over point B at a velocity of 10000m/s north. What is the plane's acceleration from A to B?

    asked by ....... on October 28, 2011
  58. Geometry

    how do you solve using midpoint equation if you only have one pair of points? like to use midpoint equation you usually get two points (4,3) and (5,2) but ive been given only one point (3,1). how do i solve for midpoint with only one set of points? help

    asked by Madison on September 29, 2011
  59. Algebra

    The pair of points (6,y) and (10,-1) lies on a line with slope 1/4. What is the value of y? A. -5 B. -2 C. 2 D. 5 What is the slope of the line that passes through the points (4,2) and (4,-3) A. -1 B. 0 C. 0 D. Undefined A line has slope -5/3. Through

    asked by Help! :) on November 30, 2015
  60. Calculus 1

    On the graph of f(x) = 8*sin(3pi*x), points P and Q are at consecutive lowest and highest points with P occurring before Q. Find the slope of the line which passes through P and Q. Slope = ? I have tried 48/pi and it didn't work

    asked by Joshua on January 24, 2014
  61. calculus 1

    The point P(2,-1) lies on the curve y=1/(1-x) If Q is the point (x, 1/(1-x) find slope of secant line. these are the points 1.5 1.9 1.99 1.999 2.5 2.1 2.01 2.01 2.001 when i calculated it i got a negative number 1/(1-1.5)=-2 but the answer is 2. also would

    asked by feather on January 14, 2016
  62. prealgebra

    ron lost 10 points seven times playing a video game. He then lost an additional 100 points for going over the time limit. What was the total change in his score?

    asked by Kenzey on September 10, 2015
  63. Bridge Math

    The inequality 10x + 20y > 500 models all of the combinations of scores of 10 and 20 points that will give a total greater than 500 points in a game. What is not true about the values for x and y?

    asked by Taylor on May 6, 2013
  64. math

    f(x)=-x^3+3x^2+9x-5 asked to find the stationary points this was my working and i don't know if it is correct f dash of x = -3x^2+3(2x)+9 -3x^2+6x+9 at local max and min f(x) should =0 -3x^2+6x+9=0 3x^2-6x+9 x^2-2x+3=0 stationary points would be at (x+3)

    asked by Pd on July 11, 2010
  65. math

    The inequality 10x + 20y > 500 models all of the combinations of scores of 10 and 20 points that will give a total greater than 500 points in a game. What is not true about the values for x and y?

    asked by Anonymous on February 27, 2014
  66. algebra

    hocky teams receive 2 points when they wi and 1 point when they tie. One season, a team won a championship with 65 points. they won 10 more games than tied. how many wins and how many ties?

    asked by ron on March 28, 2010
  67. alegebra

    amelia gets 4 points for each correct answer and loses 1 point for each worng answer. One her last quiz she earned 50 points and answered 25 questions. write a system of equations

    asked by michele on March 1, 2011
  68. Continuity Calculus Help

    9.0/1 points | Previous Answers SSTCalc6 2.3.046.My Notes Question Part Points Submissions Used Let f(x) = 4x2 if x > 2 4x + 3 if x ≤ 2. Show that f is continuous from the left at x = 2, but not from the right. lim f(x) = n→2− f(2) = lim f(x) =

    asked by John on February 8, 2017
  69. ELA

    this my oral presentaion project in french but my teacher said write in English first. there should be 3 main points and why you choose theese points. 1)help the consumer to make choices what to write for why

    asked by anu on December 15, 2009
  70. Maths

    f(x)=[sqrt((x-68)^2 + x^3-116x^2-417x+267460)] - 10 To find the minimum value of we need to check the value at the following three points (in increasing order). (You will need to use a numerical method, like Newton-Raphson to find one of these points.)

    asked by Salman on November 22, 2009
  71. Math

    f(x)=[sqrt((x-68)^2 + x^3-116x^2-417x+267460)] - 10 To find the minimum value of we need to check the value at the following three points (in increasing order). (You will need to use a numerical method, like Newton-Raphson to find one of these points.)

    asked by Salman on November 22, 2009
  72. math

    you earn 10 points for every coin you collect in a video game. Then you find a start that triples your score. Write an expression for the number of points you earn from the coins

    asked by robin on October 27, 2017
  73. Calculus

    f(x)=[sqrt((x-68)^2 + x^3-116x^2-417x+267460)] - 10 To find the minimum value of we need to check the value at the following three points (in increasing order). (You will need to use a numerical method, like Newton-Raphson to find one of these points.)

    asked by Salman on November 22, 2009
  74. math

    The table shows the outputs y for different inputs x: Input (x) 3 7 11 15 Output (y) 4 6 8 10 Part A: Do the data in this table represent a function? Justify your answer. (3 points) Part B: Compare the data in the table with the relation f(x) = 5x – 21.

    asked by brittany on December 4, 2015
  75. Math; Algebra

    The table shows the outputs, y, for different inputs, x: Input (x) 1 3 5 7 Output (y) 8 6 5 4 Part A: Do the data in this table represent a function? Justify your answer. (3 points) Part B: Compare the data in the table with the relation f(x) = 4x + 8.

    asked by Nevaeh on October 6, 2018
  76. Math; Algebra

    The table shows the outputs, y, for different inputs, x: Input (x) 13 5 7 Output (y) 8 6 5 4 Part A: Do the data in this table represent a function? Justify your answer. (3 points) Part B: Compare the data in the table with the relation f(x) = 4x + 8.

    asked by Nevaeh on October 6, 2018
  77. algebra

    In a computer game, there are four levels. At the end of each level, a player gets three times as many points as he does in the previous level. At the end of finishing the fourth level, a player gets 5400 points. How many points did the player get at the

    asked by Carol on October 21, 2013
  78. Physics

    1. Consider the two vectors P and Q. The definition of P is P = 􀀃i × (􀀃i × 􀀃j). The definition of Q is Q = (􀀃i × 􀀃i) × 􀀃j . a. The magnitude of P is equal to the magnitude of Q. b. The magnitude of P is greater than the magnitude of

    asked by Sarah on December 27, 2011
  79. Microeconomics

    Suppose that flying a 200-seat plane across country costs the airline $100,000. Thus, the average cost of each sear is $500. A plane is about to take off with 10 empty seats. Astandby passenger is waiting at the gate willing to pay $300 for a seat. Should

    asked by Jamie on January 24, 2008
  80. Statistics

    You are shown a coin that its owner says is fair in the sense that it will produce the same number of heads and tails when flipped a very large number of times. Suppose you decide to flip a coin 100 times. a. What conclusion would you be likely to draw if

    asked by Rhea on September 19, 2010
  81. 8th Grade Algebra

    1) An exam will have 20 questions worth a total of 100 points. There will be True-False questions worth 3 points each and short essay questions worth 11 points each. Several students ask how many essay questions there will be, but the teacher won't tell.

    asked by Jaida on February 26, 2009
  82. Physics

    A model airplane has a mass of 0.95 kg and moves at a constant speed on a circle that is parallel to the ground. Assume that there is no upward lift on the plane generated by its wings. Without such lift, the guideline slopes downward due to the weight of

    asked by James on October 16, 2015
  83. Algebra 2

    Did I solve this word problem correctly? In last week’s basketball game, the Lions scored 6 less than twice what the Bobcats scored. The sum of their scores is 30. How many points did the Lions and the Bobcats score individually? 2x+2x-6=30 2x+2x=36

    asked by Ernie on November 1, 2015
  84. Calculus

    A small aircraft starts its descent from an altitude of 1 mile, 4 miles west of the runway. a) Find the cubic f(x) = ax3 + bx2 + cx + d on the interval [-4,0] that describes a smooth glide path for the landing. b) If the glide path of the plane is

    asked by Jon on December 4, 2007
  85. physics

    A mass of 20 kg on a plane inclined at 40 degrees. A string attached to that mass goes up the plane, passed over a pullley and is attached to mass of 30 kg that hangs verticalyy. a) find the acceleration and it's dirction b) the tension in the string.

    asked by Benji on November 20, 2006
  86. Algebra

    A plane can fly 500 miles against the wind in the same amount of time that it can fly 775 miles with the wind. If the wind speed is 55mph, find the speed of the plane in still air.

    asked by Tom on October 14, 2016
  87. math (algerba 1) Please help!

    In basketball you score 2 points for a field goal and 1 point for a free throw. Suppose that you have scored at least 3 points in every game this season, and have a season high score of 15 points in one game. How many field goals and free throws could you

    asked by annie on January 19, 2013
  88. ALGEBRA 1 PLEASE HELP! I DONT UNDERSTAND

    In basketball you score 2 points for a field goal and 1 point for a free throw. Suppose that you have scored at least 3 points in every game this season, and have a season high score of 15 points in one game. How many field goals and free throws could you

    asked by annie on January 20, 2013
  89. physics

    a 100Nforce was applied to pull a 20 kg box up on a rough inclined plane that makes ans angle of 30. if the applied force makes an angle of 20 with the inclined plane and if the coefficient of friction was 0.4 when the accleration of the box is 3m/s^2

    asked by anthony on November 1, 2011
  90. maths

    Two planes take off from the same airport at the same time. One plane travels on a bearing S 12degreeW at 400 miles per hour. The other plane travels on a bearing N 75degreeE at 300 miles per hour. How far are the planes from each other 3 hours after

    asked by ritu on November 17, 2011
  91. word problems in algebra

    The cost of producing a number of items x is given by C = mx + b, in which b is the fixed cost and m is the variable cost (the cost of producing one more item). (a) If the fixed cost is $40 and the variable cost is $10, write the cost equation. (b) Graph

    asked by Amanda on April 5, 2007
  92. Physics

    I asked a question concerning this a while ago, but now it's a little different... A student gets a cart that does not suffer drag. Now, though, the track is not leveled. How can I calculate the angle? The cart is on an inclined plane, then there is a

    asked by Jenny on October 9, 2007
  93. physics

    a plane flys 350 km south along a straight path with an average velocity of 125 km/h to the south. the plane has a 30 minute layover and then travels 220 km south with an average velocity of 115 km/h to the south. what is the average velocity of the trip

    asked by connor on November 13, 2012
  94. Math

    You draw a marble from a jar containing 5 red marbles, 5 green marbles, and 6 blue marbles. Find the probability of drawing a green given that you did not draw a red. P(green | not red)

    asked by Keonn'a on October 11, 2018
  95. physical

    A block with mass m1 on a plane inclined at angle ƒÑ to the horizontal is connected to a second hanging block with mass m2 by a cord passing over a small, frictionless pulley, as shown. The coefficient of static friction is Us ƒÝ s and the coefficient

    asked by Lebza on April 5, 2012
  96. math

    1.what if they changed the scoring system in American Football, and there were only two ways o score, a field goal worth 3 points and a touchdown worth 7 points. What are all the possible total scores that a team could have?

    asked by IsBella on April 6, 2017
  97. Math-PLEASE HELP DUE TONIGHT

    Hockey teams receive 2 points when they win and 1 point when they tie. One season, a team won a championship with 64 points. They won 11 more games than they tied. How many wins and how many ties did they have?

    asked by Michelle on July 25, 2010
  98. Chemistry

    Fractional distillation is a technique used to separate complex mixtures of hydrocarbons based on differences in their 1. heats of fusion 2. heats of vaporization 3. melting points 4. boiling points

    asked by . on April 13, 2009
  99. maths

    given the curve y=2x/(1+x^2)^2 (a) prove that dy/dx =2(1-x^2)/(1+x^2)^2 (b) find the coordinates of the stationary points and state the nature of the stationary points.

    asked by mumbula on October 6, 2013
  100. Essential Mathematics 1

    in a track meet four athletes scored 1 1/2, 8 3/4, 5 1/8 and 1 1/4 points for their team. what is the total number points they scored?

    asked by Anonymous on October 14, 2007