1. physics

    Determine the work a hiker must do on a 15.8 kg backpack to carry it up a hill of height h = 13.5 m. The hill is not an even slope but rather an irregular curve as in the figure.Determine also the work done by gravity on the backpack

    asked by Anonymous on October 14, 2010
  2. Algebra

    a ladder is leaned against a building. the bottom of the ladder is 9 feet from the building the top of the ladder is 16 feet above the ground. draw a diagram to represent the situation. what is the slope of the ladder?

    asked by Loren on November 11, 2010
  3. math

    f(x) = x^2 + 10x + 24 =(x^2 + 10x)+ 24 =(x^2 + 10x + 25 - 25) + 24 f(x) =(x+5)^2 - 1 Vertex: (-5, -1) How do you sketch this? I know that in the graph one of the coord is (-5, -1) but how do I find the others in order to make a parabola? :|

    asked by John on September 15, 2010
  4. calculus

    Find an equation of the line that is tangent to the graph f and parallel to the given line Function: f(x)= 1/ square root of x Line: x+2y-6=0

    asked by Anonymous on September 26, 2012
  5. algebra.math

    i need serious help, I'm trying to plot table of values for sketching graph (parabola)for y=x^2-5x+3 xy values are 0,3 1,-1 2.5,-3.25 3,-3 4,-1 5,3 6,9 are these values correct, I'm having problems graphing.

    asked by kate on November 14, 2007
  6. math

    The graph of y = 7 cos theta + 24 sin theta would be a sinusoid if it were plotted. What would be the first positive value of theta at which there is a high point?

    asked by Bobby on November 6, 2011
  7. math

    Determine whether the following data should be represented on a graph as one-dimensional, two-dimensional, or three-dimensional. the average rainfall during different months of the year

    asked by heem on April 11, 2015
  8. physics

    Objects of masses m1 = 4.00 kg and m2 = 9.00 kg are connected by a light string that passes over a frictionless pulley as in the figure below. The object m1 is held at rest on the floor, and m2 rests on a fixed incline of θ = 41.0°. The objects are

    asked by trey on September 27, 2011
  9. Physics

    A large solid cylinder rolls without slipping down a 40 m long hill with a 30 degree slope. The cylinder then rolls a short distance over level ground and then off a 20 meter high sheer cliff. How far from the base of the cliff does the cylinder land?

    asked by Mary on April 9, 2012
  10. physics

    Objects of masses m1 = 4.00 kg and m2 = 9.00 kg are connected by a light string that passes over a frictionless pulley as in the figure below. The object m1 is held at rest on the floor, and m2 rests on a fixed incline of θ = 41.0°. The objects are

    asked by trey on September 27, 2011
  11. Science

    (04.03 MC) A student made the following diagram to represent cellular respiration. The title of the diagram is Cellular Respiration. An oval labeled Cell has five arrows around it. The arrow labeled Oxygen points towards the cell. The other four arrows

    asked by Hi my name is BPK! Hi on April 22, 2019
  12. calc

    The slope of the tangent line to a curve at any point (x, y) on the curve is x divided by y. What is the equation of the curve if (3, 1) is a point on the curve?

    asked by Anonymous on June 29, 2015
  13. Calculus

    The slope of the tangent line to a curve at any point (x, y) on the curve is x divided by y. What is the equation of the curve if (2, 1) is a point on the curve?

    asked by Anonymous on April 28, 2017
  14. calculus

    a.Find the slope of the tangent line to the curve y=9-2x^2 at the point (2,1) b.Find an equation of this tangent line.

    asked by josh on January 13, 2014
  15. Calculus

    The slope of the tangent line to a curve at any point (x, y) on the curve is x/y. What is the equation of the curve if (4, 1) is a point on the curve? x2 − y2 = 15 x2 + y2 = 15 x + y = 15

    asked by nan on March 11, 2016
  16. Calculus

    Suppose that y=f(x) = sqrt(2x), x>=0 Find a c > 0 such that the tangent line to the curve y = f(x) at x = c has the same slope as the tangent line to the curve y = f^–1(x) at x = c. You get: c = 1/8 c = 1/2 c = (1/8)^(1/3) c = (1/3)^(2/3) c = (1/2)^(1/3)

    asked by Thomas on April 9, 2015
  17. Economics (& Public Policy)

    I'm an idiot, but please let me know where to begin here. This is a distance learning course, and I CANNOT contact the professor, and cannot make sense of it in the textbook. If someone can please look at this and let me know where to begin, I thank you

    asked by KP on March 22, 2007
  18. Math

    The graph of a rational function has a local maxima at (-1,0) and (8,0). The complex number 2+3i is a zero of the function. What is the least possible degree of the function? I know The correct answer is 6. I need help with the explanation please.

    asked by Anyki. on December 31, 2017
  19. physics

    An object is moving along a straight line. The graph shows the object's velocity as a function of time. . What is the acceleration of the object in the interval from t = 5 s to t = 6 s?

    asked by thaokieu on January 30, 2011
  20. Math help

    You buy 3 pounds of organic apples for $7.50. The graph shows the price for regular apples. What is the unit rate for each type of apples?

    asked by Mr.Brain on May 2, 2013
  21. Math

    What is the: - vertical asymptote -horizontal asymptote -non permissible value of y=(x^2+x-12)/(x+4) ? So this simplifies to a linear function y=x-3. BUT the oblique asymptote is also y=x-3. So does this graph not exist? I am really confused.

    asked by Beth on October 15, 2015
  22. algebra

    To rent a canoe costs $15 for the first hour and $12 for each additional hour or fraction of an hour. Which point is NOT included in the graph of this step function?

    asked by linda on April 6, 2018
  23. bio

    A large population of laboratory animals has been bred randomly for a number of generations. There was an interesting revelation. The scientists noted that there was neither an increase nor a decrease in the frequency of animals displaying the recessive

    asked by Bianca on March 10, 2016
  24. mit

    Quiz 12, Problem 4 (2 points possible) A uniform rod of length d is initially at rest on a flat, frictionless table. The rod is pivoted about a point a distance d/3 from one of its ends, and is free to rotate on the table about this pivot. A small glob of

    asked by juanpro on March 23, 2016
  25. Calculus

    Find a Riemann Sum formula for evaluation points that are one-third of the way from the left endpoint to the right endpoint.

    asked by Penny on January 14, 2018
  26. Vectors Q#2

    Find the shortest distance between the point D with coordinates (-2,-2,9) and the line passing through the points with coordinates B(2,4,6) and C(4,1,5)

    asked by C on February 14, 2017
  27. Physics

    When a solid wheel rotates about a fixed axis, do all of the points of the wheel have the same tangential speed?

    asked by courtney!! on January 24, 2010
  28. English

    my statement is people can be kind without laws or police.. I can't think of points supporting my statement. plz help

    asked by Leo on March 30, 2015
  29. distance formula

    I need to find the distance between two points, (6,-3) and (-1,4). d = sqrt[(x2-x1)^2 + (y2-y1)^2)] I got that down to the sqrt of 98, which is the decimal 9.899494937, approximated at 9.9. Is this the right answer?

    asked by Tabby on April 20, 2012
  30. Statistics

    Between z = -2 and z = 0.4. (Points: 5) 0.655 0.977 0.477 0.155 0.633 my answer was o.155 is this correct

    asked by John on June 20, 2010
  31. math

    P (5,) and Q (-1, 2) are points on a straight line. Find the equation of the perpendicular bisector of PQ: y = mx+c how to find missing

    asked by kudu on March 14, 2015
  32. Math

    Ethan's quiz average in spelling for the past 7 quizzes is 93. How many total points does he have for the 7 quizzes?

    asked by Mona on September 19, 2017
  33. math

    use the distance formula to find the distance between the points (-3,8) and (-4,-1) round to the nearest hundredth if neccesary

    asked by help on February 2, 2017
  34. Finance

    7. Describe at least two factors of an investment that you would want to consider before putting money into that specific investment. (2-4 sentences. 2.0 points)

    asked by Anonymous on March 7, 2012
  35. eng122

    Most paragraphs should begin with a topic sentence. (Points : 1) True False answer false

    asked by madam on August 20, 2016
  36. Pre calc

    Find an equation of the line that passes through the given points. (Let x be the independent variable and y be the dependent variable.) (3, 13) and (4, 20)

    asked by Terry on January 4, 2017
  37. precalculus

    can you please check my work? 7. Find the equation of the parabola y=ax2+bx+c that passes through the points(0,6),(-2,2), and(3,9/2). y=ax2+bx+c 6=a(0)2+b(0)+c 2=a(-2)2+b(-2)+c 9/2=a(3)2+b(3)+c 6=c 2=4a+(-2b)+6 9/2=9a+3b+6 -4=4a-2b -3/2=9a+3b a=-1/2, b=1

    asked by Anonymous on December 3, 2016
  38. Calc

    Find the cartesian coordinates of the following points given in polar coordinates. b. (2 rt2, 3pi/4) I cant figure this one out

    asked by Jessica on March 26, 2008
  39. geometry

    Which segment is a tangent segment to circle Q? (Points : 1) EP EA AP BP It's from K12 and it's a small quiz (homework)

    asked by Brandan on March 26, 2012
  40. Statistics

    Is is possible for the regression equation to have none of the actual (observed) data points located on the regression line?

    asked by Julia on December 2, 2012
  41. math

    The gradient of a curve at (1,-11) is ax^2 + b at all points. The tangent at (2,-16) is parallel to the x-axis. Find a and b and the equation of the curve

    asked by joseph on June 21, 2016
  42. Math

    The table below shows the melting points of four elements. Which element has the highest melting point.

    asked by Siara on October 27, 2016
  43. Calculus

    If an object is moving along the curve y=x^3, at what points is the y-coordinate changing 3 times more rapidly then the x-coordinate?

    asked by Daniella on November 14, 2012
  44. Maths of class 9

    P and q are points on side CD of a parallelogram ABCD. Show that area of trianglePAB =area of triangleRAB

    asked by Abdullah on November 25, 2016
  45. Algebra

    What is the equation of a line that is perpendicular to the line that goes through the points (0, -3) and (-3, 12)? Can you please give me the steps to solve this. I got m which is -5, but I don't know what to do next.

    asked by Bradley on November 28, 2018
  46. maths

    A semicircle has AB as the endpoints of its diameter, and AB=400. Points C and D are on the circumference of the semicircle such that AD=BC=100. What is the length of DC?

    asked by harsh on February 12, 2013
  47. Calculus

    find a Riemann Sum formula for evaluation points that are one-third of the way from the left endpoint to the right endpoint.

    asked by Penny on January 17, 2018
  48. high school

    Is there a formula or general for finding the number of segments that can be named by a given number of points on a line?

    asked by Maria on September 3, 2008
  49. Calculus

    Suppose that f(x)=ln(3+x^2). Use interval notation to state when f(x) is concave up and concave down. Then find all inflection points for f(x).

    asked by Sckricks on November 6, 2013
  50. Hi

     make a table using points along the graphed linear function .Then, determine the correct function.

    asked by Alyson on November 26, 2012
  51. math

    the graphs of the function with equation y= a(x+5)^2=q passes through the points (-6,2) and (-3,20). Determine whether the function has a maximum or minimum value

    asked by lily on March 3, 2019
  52. maths

    if the points A(-1,2) , B(2,3) , C(-3,2) and D(-4,-3) are the vertices of parallelogram ABCD, then taking AB as the base , find the height of this parallelogram .

    asked by roopal on March 2, 2013
  53. trig

    The parametric equations for a curve in the x-y plane are x=2+t^2 and y=4-3t. Determine the points where the curve intersects the x-axis.

    asked by casey on April 19, 2011
  54. Algebra

    Jonah has only nickels and dimes in her piggy bank they're 51 points in the total value is $4.05 How many nickels and how many times does she have

    asked by Sue on November 23, 2015
  55. math

    find an equation of the line passing through the given points. Write the equation in function notation (4,5) and (2,9) f(x)=

    asked by Anonymous on October 11, 2010
  56. Math

    Show that the tangent to the curve 25x^5+5x^4-45x^3-5x^2+2x+6y-24=0 at the point (-1,1) is also a normal at two points of the curve.

    asked by Avik on February 3, 2013
  57. solid mensuration

    circle c has radius of 10 cm. each of the points B and D is on yhe midpoint of the radius. find the shaded area.

    asked by hanah on July 6, 2011
  58. Statistics

    For a population with a standard deviation of 10, how mlarge a sample is necessary to have a standard error that is less than or equal to 5 points?

    asked by Denise on March 2, 2011
  59. Maths

    The sketch shows a curve with equation y=ab^x where a and b are constants and b>0. The curve passes through the points (0,3) and (2,12). Calculate the value of a and b. Thank you.

    asked by Julie on April 19, 2017
  60. math help

    find an equation of the line passing through the given points. Write the equation in function notation (4,5) and (2,9) f(x)=

    asked by Anonymous on October 11, 2010
  61. Math

    What is the measure of the dent angle for a star-shaped polygon with 8 points and a point angle of 20°?

    asked by Jenny on October 25, 2009
  62. Math

    write an equation of the line containing the given points and parallel to the given line (7,8) x + 3y = 7 can some one please help I am very sick an have to have this in by 11:59 tonight thank you in advance.

    asked by Norma on August 20, 2010
  63. geometry

    show that the points A(-4,2) B(1,4) C(3,-1) D(-2,-3) are verticies of a square. please show me how to solve this type of math problem.

    asked by alex on August 13, 2012
  64. math

    Draw a number line from 0 to 8. locate points to show the whole-number solution from 0 to 8 for eACH EQUALITY.

    asked by Victoria on September 30, 2009
  65. Math

    The points (2, 3,6) and (6, 3, !2) both lie on the sphere x 2 + y 2 + z 2 = 49. What is the shortest path between them if travel is restricted to the surface of the sphere?

    asked by John on August 19, 2010
  66. Math

    The points (2, 3,6) and (6, 3, !2) both lie on the sphere x 2 + y 2 + z 2 = 49. What is the shortest path between them if travel is restricted to the surface of the sphere?

    asked by John on August 19, 2010
  67. eng 122

    You should introduce new evidence in your concluding paragraph. (Points : 1) True False answer false

    asked by madam on August 19, 2016
  68. Math

    For a population with a standard deviation of s = 12, a z-score of z = +0.50 corresponds to a score that is above the mean by 6 points.​ True or False

    asked by Annie on December 15, 2017
  69. Algebra 1

    Hello. I am having a bit of trouble understanding the following "Solve by Graphing. 3x + y = 5 -2x + 3y = 4" I know you can't see the graphing on this site, but I would really appreciate it if someone points me in the right direction in how to do this.

    asked by Tamir on July 18, 2010
  70. math

    Hello, I need help finding the intersection points B and C of the tangent A with for horizontal axis B and the vertical axis C. hyperbola: f (x) = 1 / x A = (1, 1) Thanks for your help .

    asked by Sébastien on March 5, 2012
  71. Geometry

    The vertices of a pre-image are located at points (12, 8), (6, -4), and (-2, 10). If the image has coordinates (6, 4), (3, -2), and (-1, 5), is this an expansion or a contraction?

    asked by Yaz on June 1, 2014
  72. math

    A standard IQ test has a mean of 98 and a standard deviation of 16. We want to be 99% certain that we are within 8 IQ points of the true mean. Determine the sample size

    asked by Tneshia on February 14, 2010
  73. maths-

    Number of points at which f(x) = 3+2sinx has maximium in the interval (-11 pie/2 , 100 pie) is _____

    asked by anoynomous on March 19, 2013
  74. Algebra2

    A triangle has points A(1, 2), B(1, 6), and C(3, 6) and is reflected over the x-axis and then over the line y = x. A"B"C" are the coordinates of the reflected image. What is the A" coordinate?

    asked by Maranda on September 27, 2012
  75. eng 122

    Editing should focus on each sentence individually. (Points : 1) True False answer true

    asked by madam on August 26, 2016
  76. math question

    Find the coordinates of the four points which have integer coordinates and are a distance of root 5 from the point (1, 2). Hint 5=1^2 + 2^2

    asked by Tahlia on March 7, 2017
  77. Math

    I need to create a picture on the computer and plot points using the x-axis and the y-axis. What program would I use to make this?

    asked by Susan on January 17, 2016
  78. Calus calculus

    a. Find the critical points of f on the given interval. b. Determine the absolute extreme values off on the given interval f(x)= x In(x/5); (0.1,5)

    asked by Mjeed on November 6, 2015
  79. Math

    ok so the point are A(3,0) and B(-4,6) and the question asks : the images of points A and B after a reflection in the line y=x. what im trying to ask is what axis does it go over the y or x axis?

    asked by Jessica on April 11, 2012
  80. statistic

    Explain the transformation needed to convert the following data to a linear data set. {(1, 0.98), (2, 1.39), (3, 1.71), (4, 1.98), (5, 2.22), (6, 2.43)} (6 points)

    asked by helen on December 13, 2013
  81. Calculus

    A)Find the critical points off on the given interval. B)Determine the absolute extreme values of f on the given interval. F(x)=xe^-x/2 on (0,5)

    asked by Mjeed on November 6, 2015
  82. Calculus grade 12

    1. a) Write the vector and parametric equations of the line through the points A(6, -1, 5) and B(-2, -3, 6). b) Find another point on the line in (a).

    asked by J on May 3, 2012
  83. Calculus

    1. a) Write the vector and parametric equations of the line through the points A(6, -1, 5) and B(-2, -3, 6). b) Find another point on the line in (a). ----- This is what I got for a) r = 6i-j+5k + t(-8i-2j+k) x = 6-8t y = -1-2t z = 5+t I need help with b)

    asked by J on May 4, 2012
  84. 7th Grade Social Studies

    Explain the similarities and differences between corporate farms and mixed-crop farms. (5 points)

    asked by Anonymous on March 29, 2013
  85. physics

    A map is drawn to a scale of 2cm=25km.If two points are 7.4 cm apart on the map,what is the actual distance between them?

    asked by jmmy on January 3, 2012
  86. math

    find an equation of the line containing the given pair of points. Use function notation to write the equation. (5/7,10/14) and (-1/7,13/14) f(x)

    asked by kate on October 8, 2010
  87. Algebra

    Construct exponential functiom of points (0,200) and (6,380). The exponential function is y(x)=____

    asked by DidAQuestionSimiliarBefore on October 12, 2016
  88. electromagnetism

    #10 (5 points possible) At what frequency in Hz will this circuit have the same current with the switches open and with the switches closed? - unanswered

    asked by JuanPro on April 14, 2015
  89. Geometry Quadrilateral Coordinate Plane Question

    What type of quadrilateral is formed by connecting the points (0, 9), (3, 6), (0, 1), and (–3, 6)? rhombus trapezoid kite quadrilateral

    asked by sLEXANDria on January 10, 2012
  90. geometry

    show that the quadrilateral formed by joining the mid -points of the sides of a square is also a square.

    asked by selva on October 13, 2008
  91. calculus

    find and classify all local minima, local maxima, and saddle points of the function f(x,y)= e^-y(x^2+y^2)

    asked by karen on July 13, 2010
  92. maths

    1)y=x²-3x+2 2)y=8x-16/x-3 A)Sketch both on axes B)Calculate coordinate of points of intersection I have drawn both on axes. I am having trouble with B). I know you have to do y=y.

    asked by Anonymous on January 27, 2008
  93. statistic

    Explain the transformation needed to convert the following data to a linear data set. {(1, 0.98), (2, 1.39), (3, 1.71), (4, 1.98), (5, 2.22), (6, 2.43)} (6 points)

    asked by Helen on December 14, 2013
  94. Economics

    I have to discuss the growth of modern technology's impact on transaction costs. What points do you think I should discuss?

    asked by Dan on November 18, 2007
  95. Calc 3

    if r= and r_0= , describe the set of all points (x,y,z) such that magnitude[r-r_0]=4

    asked by Emily on January 31, 2012
  96. statistics

    9. Explain the transformation needed to convert the following data to a linear data set. {(1, 0.98), (2, 1.39), (3, 1.71), (4, 1.98), (5, 2.22), (6, 2.43)} (6 points)

    asked by helen on December 13, 2013
  97. Vectors

    Determine two other (non-trivial) points on the line that passes through P(5, 6, -2) and is parallel to the line with equation Vector r = (2,-3,4) + t(1,1, -3), t∈R.

    asked by Jim on October 21, 2018
  98. methodologies

    Compare points-of-service (POS) plans with maintenance organization(HMO) plans

    asked by Debbie on November 22, 2008
  99. statistic

    Explain the transformation needed to convert the following data to a linear data set. {(1, 0.98), (2, 1.39), (3, 1.71), (4, 1.98), (5, 2.22), (6, 2.43)} (6 points)

    asked by helen on December 12, 2013
  100. punjab technical university

    A student recorded her scores on weekly math quizzes that were marked out of a possible 10 points .her scores were as follows

    asked by sarita mishra on December 15, 2015