1. Math

    The rounded numbers all range from the hundred thousands to the millions. Which place-value should be used as intervals for a scale for the graph?

    asked by Karl on January 13, 2011
  2. College math

    Analyze x²-6x-5y=1. Determine the vertex, focus, directrix, intercepts, axis of symmetry, and at least 2 other points on the graph.

    asked by Angel on December 6, 2010
  3. Chemistry

    What is the importance of a freezing point depression graph and why and what things change when different solutes and solvents are added?

    asked by Kathleen on March 25, 2010
  4. Calculus

    Use the FTC 1 to find the area of the region under the graph of the function f(x)= 8x-x^2 on [0,8]. I got 244/3 but the answer key says 256/3.

    asked by Anonymous on October 8, 2015
  5. Math

    Graph the linear equation. I need coordinates, but don't think they match up to my choices. I would appreciate some feed back. ThankS! 4y + 36x = -32

    asked by Michelle on March 3, 2009
  6. math

    Silas claims that the equation y = 2 + mx, where m is a real number, represents a function whose graph is a straight line

    asked by tyrece on May 11, 2016
  7. math

    Select the best graph: 1. What data display would best list the frequency of the number of students that received an 85% on test?

    asked by Isabella on April 7, 2014
  8. math

    Describe the steps to graph the direct variation equation y = – 3x. In the formula d = rt, what do each of the letters stand for and how do they relate?

    asked by sakovia on November 8, 2010
  9. Calculus

    My teacher showed our class how to find the graph of a derivative using tangent lines. I can not figure this out. I would really appreciate it if someone could help me or explain it to me. Thank you very much for your help.

    asked by Jacob on September 30, 2007
  10. algebra

    Write a compound inequality that represents the following phrase. Graph the solutions. all real numbers that are between negative 7 and 4

    asked by cole on March 6, 2018
  11. math

    If Betty puts two heavy cookies on one side than how much will it be? there was a graph it said the biggist # is 3/4oz and the smallest # is 2/4. 3/4+2/4=5/4 Answer :I think it is 5/4

    asked by anomous on October 23, 2010
  12. calculus

    Show that the tanget lines to the graph of Y= e^x - e^-x /e^x + e^-x at x =1 and x= -1 are parallel. I know to use the Quotient rule but I am having a hard time with this problem.

    asked by dino on November 6, 2012
  13. Algebra

    I need help on one particular part of algebra because i forgot what my teacher said! Here is the question: Directions: Find the x- intercept of the graph of the equation. 1. x+ y= 5

    asked by Eva on November 8, 2007
  14. Calculus

    Find an expression for the function whose graph is the given curve. The top half of the circle x^2 + (y-2)^2 = 4 Please Help. I don't even know where to start.

    asked by Chelsea on September 14, 2010
  15. Math

    A truck rental company charges $45 per day, plus $.39 per mile. Model the situation with a table and graph.

    asked by Alex on February 20, 2009
  16. Math

    Find the equation of the secant line to the graph of y= 2x^3-3x^2+4x-1 from x=1 to x=3. Give your answer in slope-intercept form.

    asked by Sam on February 23, 2013
  17. math

    The section is on concavity and the second derivative test, the question is: Determine all significant features and sketch a graph: f(x) = x / x + 2

    asked by Sandra Gibson on April 14, 2012
  18. to bobpursley

    I don't understand any of the information you gave me to solve the problem. Ok, write the two equations ( I did one). Now graph them. Where do they cross?

    asked by Joeis on December 10, 2006
  19. science

    How do I design a graph that shows the ratio or proportion of metal,metalloids,and nonmetals that are on the periodic table

    asked by Bianca on October 18, 2007
  20. Math

    y = a(x - h)2(sqaured) + k Where would I put a number in order to stretch or compress the graph vertically in the equation above? And what does the a represent?

    asked by Lena on March 23, 2009
  21. math

    1) Describe the similarities and differences between hyperbolas and ellipses. 2) List the properties of a hyperbola that allow you to sketch its graph.

    asked by CHEYANNE MARIE on May 5, 2012
  22. trig

    Write an equation of a secant graph that has amplitude of 3, period of pi/2, is shifted to the left pi/4, and is flipped over the x - axis.

    asked by Anonymous on September 24, 2010
  23. math

    write a four equations in slope-intercept form of four different lines that are parallel and graph the line ?? HELP pleaseee!! thank you

    asked by may on March 13, 2015
  24. math

    Suppose G is a connected, simple, planar graph with 100 vertices. What is the largest possible number of edges in G?

    asked by Anonymous on March 7, 2013
  25. college algebra

    graph the function and state the vertex axis of symmetry, the intercepts, if any: f(x)=x^2-8x+15 Please show work so i can understand this. thank you

    asked by alli on August 19, 2012
  26. Algebra

    Write an absolute value inequality to fit the graph below: There is a Number line with 14 on the left and 26 on the right with solid dots on both.

    asked by Tom on June 1, 2017
  27. Alg 2

    If I were to graph it, the vertex would be (3,-7) so what would my other point be? Write this equation : y =4(x-3)^2 -7 in standard form . answer: y=4x^2 -24x +29 idk if this is right?

    asked by Jess on June 12, 2015
  28. math

    make bar graph usins atleast 10 numbers that have mode 15,min5,med10,max20

    asked by Anonymous on February 5, 2013
  29. Calculus grade 12

    find the coordinates of all points on the graph of f(x) = x + 2cos(x) in the interval [0, pie] at which the tangent line is horizontal.

    asked by Julie on April 12, 2012
  30. math

    For the given function, find all points on an the graph where the tangent line is horizontal or vertical. y= xsqrt(4-x^2) y= sqrt(1-x^2)(4-x^2)

    asked by help on October 10, 2010
  31. Math

    A machine produces a voltage in the following formula V(t) = 300cos(10(pi)x). X is the time in seconds. Graph the function with the restriction 0 < X < 1

    asked by Ann on April 29, 2013
  32. Analytic Geometry

    simplify the given equation and graph xy-x+y=0 (it is on rotation of axes. please answer in order for me to have a guide in my studies tonight)

    asked by Earl John on May 3, 2016
  33. Trigonometry

    Sketch the graph of the function (Include two full periods. Find one complete cycle. y=10cos πx/6

    asked by Bre on September 29, 2017
  34. Algebra 1a

    I am working with Systems of Linear Inequalities and need to find the point where the lines meet to label my graph. -9x-3y=72 Thanks!

    asked by Kim on January 10, 2015
  35. Math: Linear Equation

    I have not learned this yet in class and I am stuck on this homework problem. Graph the linear equation by using a table of solutions. 3x-4y=12

    asked by Ashley on May 20, 2014
  36. Advanced Algebra

    Find the exponential function of the form y=ax^b whose graph passes through the points (-3, 1/27) and (0,1). I don't know where to begin with this problem??

    asked by Anonymous on May 1, 2011
  37. Calculus

    If 0

    asked by Anonymous on December 21, 2012
  38. calculus

    Find the dimensions of the rectangle with the largest area if the base must be on the x-axis and its other two corners are on the graph of: (a) y=16-x²,-4

    asked by Jay on May 2, 2016
  39. calculus II

    Find the volume of the solid obtained by rotating the region under the graph of the function f(x)=x^8/9 about the x-axis over the interval [1,2].

    asked by saud on June 5, 2011
  40. Calculus

    Let f be a function with second derivative given by f''(x)=sin(2x)-cos(4x). How many points of inflection does the graph of f have on the interval [0,10]? (A)Six (B)Seven (C)Eight (D)Ten (E)Thirteen

    asked by Mike on October 21, 2016
  41. Calculus 2

    Find the volume of the solid obtained by revolving the graph of y=x(sqrt(1-x^2)) over [0,1] about the y-axis. How do you write the integral?

    asked by Jenna on February 17, 2010
  42. Algebra

    how would f(x)=-2+-3 look like on a graph I assume you made a typo, and you meant to type f(x)=-2x+(-3) or f(x)=-2x-3 that would be a straight line with a y-intercept of -3 and a slope of -2

    asked by Tony on March 26, 2007
  43. maths-linear equation

    Draw the graph of the linear equation whose solutions are represented by the points having the sum of the coordinates as 10 units.

    asked by anoynomous on March 11, 2013
  44. calculus

    The graph of the function y=x^5-x^2+sinx has a point of inflection at x= a. 0.324 b. 0.499 c. 0.506 d. 0.611 e. 0.704 Thanks.

    asked by John on March 15, 2015
  45. Calculus

    Find constants a,b, and c such that the function f(x)=ax^3+bx^2+c will have a local extremum at (2,11)and a point of inflection at (1,5). Sketch the graph of y=f(x). How would I solve this. Thank you.

    asked by Wayne on March 28, 2010
  46. Calculus

    Any help will be appreciated! Find the area of the region between x=-3pi/4 and 5pi/4 in the graph enclosed by f(x)=sinx and g(x)=cosx Thank you!

    asked by Joana on August 17, 2016
  47. math

    Suppose G is a connected, simple, planar graph with 100 vertices. What is the largest possible number of edges in G?

    asked by Anonymous on March 8, 2013
  48. Math - Graphing Logarithms function

    Graph the function below. Determine the domain, range, and vertical asymptote. Please show all of your work. f(x) = log2(x-4)

    asked by CheezyReezy on June 6, 2011
  49. ,math

    given the quadratic equation expression x^2+10*x+12 find the turning point of its graph by using the technique known as completing the square.

    asked by @@prit on April 28, 2016
  50. algebra

    this problem I don't get it all 1 Skectch the dialation image of mno with center c and scale factoe 4 and it has a graph

    asked by carlo525252 on August 20, 2012
  51. Mathematics

    For the graphed function f(x) = (4)^(x - 1)+ 2, calculate the average rate of change from x = 2 to x = 4 -68 -30 68 30 Which logarithmic graph can be used to approximate the value of y in the equation 4y = 8?

    asked by Stokedtobehere on May 13, 2014
  52. algebra

    How would you go about solving this? Im totally confused. Thanks! Find the value of k such that the graph of f contains the given point. Write k as a simplified fraction if it is not a whole number. f(x) = kx^3 - 3x^2 + kx + 3; (-1, 8)

    asked by Alyssa on April 12, 2011
  53. Math: Calc 2

    Find the volume of the solid obtained by rotating the region under the graph of the function f(x) = x^(13/12) about the x-axis over the interval [1,3]. Thanks!

    asked by James on July 9, 2013
  54. central

    quadratic equations by graphing The idea is to graph the function f(x)=ax^2 + bx + c, and where it crosses the x axis (y=0) are the real roots.

    asked by teyonna on April 10, 2007
  55. Calculus

    Find the volume of the solid obtained by rotating the region under the graph of the function f(x) = (2)/(x+1) about the x-axis over the interval [0,3]

    asked by Annie on July 9, 2013
  56. chemistry

    i am working on a practice worksheet and need help with a few i can not understand. please and thank you. I have to post them separately sorry 49.how many grams of water are needed to completely hydrolyze 30.8 g of the ester? A.0.416 g B.30.8 g C.11.3 g

    asked by mark on November 17, 2015
  57. Grammar

    Choose the best answer. 1. Histologic sections of the appendix (show, shows, showing) acute and chronic periappendicitis charaterized by a mixed acute and chronic inflammatory infiltrate on the serosal surface associated with hemorrhage, vascular

    asked by Leslie on May 13, 2011
  58. Critical Thinking

    Letter to the editor: “Andrea Keene’s selective morality is once again showing through in her July 15 letter. This time she expresses her abhorrence of abortion. But how we see only what we choose to see! I wonder if any of the anti-abortionists have

    asked by Tidaesha on November 11, 2008
  59. Visual Basic (Computer Programming)

    ALGORITHM EXERCISES 1. Wilma Peterson is paid by the hour. She would like a program that both calculates and displays her weekly gross pay. For this exercise, you do not need to worry about overtime pay, as Wilma never works more than 40 hours in a week.

    asked by Erick on January 16, 2013
  60. to dr bob..chemistry

    bottle of wine contains 13.1% ethanol by volume. The density of ethanol (C2H5OH) is 0.789 g/cm3. Calculate the concentration of ethanol in wine in terms of mass percent and molality. mass percent _______% molality ______mol/kg Thanks Responses AP CHEMMMM -

    asked by Lawrence on November 30, 2008
  61. English

    I did the corrections myself. Can you please check them? I just wanted to know if it is better to say "at Medford Square or in Medford Square, "to leave Turin for Rome", "to leave from Turin and go to Rome", "on" OR "during" our last night in Rome?". I

    asked by Henry1 on April 28, 2011
  62. Algebra

    We are studying linear and quadratic functions and the problem is stated as: "The Political Noise Problem. The amount of background noise is important to television news reporters. One station developed the formula N=-t^2+12t+54 showing the noise level in

    asked by anonymous on March 5, 2010
  63. physics

    Draw a diagram to scale showing the direction in which a man must row across a river in order to reach a point directly opposite, if he rows 3 mile/hr while the speed of current is 2 mile/hr. My ans- with angle of 33' with straight line he wants to travel.

    asked by jzee11 on July 4, 2015
  64. Math (Trigenometry) 3

    Write f(x)=x^4-12x^3+59x^22-138x+130 as a product of linear factors. I listed the factors of 130 and used synthetic division, but none of the remainders came out to be 0. I graphed the function, but the function doesn't pass through the x-axis. I figured I

    asked by 2012 on February 8, 2011
  65. Math (Trigenometry)

    Write f(x)=x^4-12x^3+59x^22-138x+130 as a product of linear factors. I listed the factors of 130 and used synthetic division, but none of the remainders came out to be 0. I graphed the function, but the function doesn't pass through the x-axis. I figured I

    asked by Anonymous on February 9, 2011
  66. Math (Trigenometry)

    Write f(x)=x^4-12x^3+59x^2-138x+130 as a product of linear factors. I listed the factors of 130 and used synthetic division, but none of the remainders came out to be 0. I graphed the function, but the function doesn't pass through the x-axis. I figured I

    asked by Anonymous on February 9, 2011
  67. Bit rate and probability

    Attention, please show the calculations in details, comments have to be provided. You have information source with M symbols. 1. Calculate the amount of the information in bits for one M-ary symbol, considering that the probabilities of the symbols are the

    asked by Alper on March 5, 2018
  68. math - marginal analyis

    A factory's output is Q=600K^1/2L^1/3 units, (read 600 x K to the 1/2 power x L to the 1/3 power). K denotes capital investment and L denotes the size of the labor force. Estimate the percentage increase in output that will result in a 2% increase in the

    asked by becky on August 14, 2006
  69. Calculus

    I do not understand what this question is asking and how to get the result for it: "Suppose we have a metal bar of length L0 metres at temperature T0 in degrees Celsius.When the bar is heated or cooled, the length of the bar changes. The amount that the

    asked by Anonymous on September 16, 2014
  70. chemistry

    Under the appropriate conditions, NO forms NO2 and N2O: 3NO(g) N2O(g) + NO2(g) Use the values for delta G naught for the following reactions to calculate the value of Kp for the above reaction at 500.0 C 2NO(g) + O2(g) 2NO(g) delta g=-69.7 kJ 2N2O(g)

    asked by Victoria on November 5, 2012
  71. math

    I know that on this forum you can't graph but can someone help me with where to plot my lines... Here is the question and my solution...(need to shade solution)will draw two lines(solid) and shade below but need to verify line equation points A small

    asked by Dori on August 12, 2007
  72. Chemistry

    You are preparing 500 mL of a 0.300 M acetate buffer at pH 4.60 using only sodium acetate, 3.00 M HCl, 3.00 M NaOH, and water. Calculate the quantities needed for each of the following steps in the buffer preparation. 1. Add sodium acetate to ~400 mL of

    asked by Unknown on February 28, 2012
  73. CHEMISTRY

    I'm showing the procedure of the lab and what was asked. What I have question on is towards the end. Much help would be appreciated a lot!! First I had to balance the equation given to me: 2 Na HCO3 (s) Δ over arrow (produces) Na2 CO3 (s) + CO2 (g) + H2O

    asked by Allie on February 23, 2016
  74. statistics/ Help!-thanks!

    The producers of a new toothpaste claim that it prevents more cavities than other brands of toothpaste. A random sample of 60 people use the new toothpaste for 6 months. The mean number of cavities at their next check up is 1.5. In the general population

    asked by StudentD on August 25, 2012
  75. Physics-Please check calculations

    I posted this earler and you gave me help, could you please check what I did? Thank you If a car drives off a 40 m high cliff with a horizontal velocity of 15 m/s, how far from the base of the cliff will the car strike the ground? Could someone help with

    asked by JessieLynne on January 2, 2011
  76. Algebra

    Currently, Jodi has a collection of 44 CDs and Veronica has a collection of 22 CDs. Jodi is adding 2 CDs per month to her collection; Veronica plans to add 4 CDs per month. a. Write a system of equations for this situation. Explain your method. b. Graph

    asked by TEri on February 16, 2012
  77. challenging math problems! :]

    1. a total of 120 numbers can be formed using all 5 digits 1, 2, 3, 4, and 5. If these numbers are arranged in increasing order 12 345, 12 453, up to 54, 321, which one is the 75th number in this order? *can someone tell me how to do this problem???^) 2.

    asked by gary on December 15, 2006
  78. Physics 2

    Explain briefly the workings of electrical transformer, both step-up and step-down In a step-up transformer, compare the secondary voltage and current to the corresponding primary values. Explain briefly how transformers minimize losses in long distance

    asked by seanmarch58 on July 28, 2014
  79. Science - Melting Ice

    In the process of heating ice into the boiling state of its liquid form, did the procass absorb or release energy? Did the molecules spontaneously move fast? Where did the energy come from and where did it go? did it increase or decrease? was it lost? Were

    asked by Sigor on October 18, 2006
  80. calc: avg value

    Find the average value of the function "f(x) = x^2 sqrt(1+x^3)" on the interval [0,2]. and this is what i did.. please check for mistakes. thanks :D f(x) = x^2 sqrt(1+x^3), [0,2] f ave = (1/(b-a))*inegral of a to b for: f(x) dx f ave = (1/(2-0))*integral

    asked by COFFEE on July 2, 2007
  81. Spanish-Please check and clarify

    Could someone recheck this-I don't understand the two follow up answers because they seem to contradict each other-Maybe its the question or wording I'm confused about but I still don't understand if this is true or false. I thought it was false.I'm sorry

    asked by BethAnne on February 22, 2011
  82. statistics

    A sample of 25 concession stand purchases at the October 22 matinee of Bride of Chucky showed a mean purchase of $5.29 with a standard deviation of $3.02. For the October 26 evening showing of the same movie, for a sample of 25 purchases the mean was $5.12

    asked by Jennifer on March 1, 2010
  83. SMU

    A sample of 25 concession stand purchases at the October 22 matinee of Bride of Chucky showed a mean purchase of $5.29 with a standard deviation of $3.02. For the October 26 evening showing of the same movie, for a sample of 25 purchases the mean was $5.12

    asked by carl on December 19, 2011
  84. business

    The table given below provides the shipping costs and supply available at each source. Find the minimum-cost shipping solution for the transportation problem. Provide a table of shipping quantities and the minimum value for the objective function for the

    asked by Anonymous on July 25, 2010
  85. Linear programming

    Riverside Oil Company in eastern Kentucky produces regular and supreme gasoline. Each barrel of regular sells for $21 and must have an octane rating of at least 90. Each barrel of supreme sells for $25 and must have an octane rating of at least 97. Each of

    asked by Derek on June 26, 2011
  86. physics

    a plane is flying with a constant speed along a straight line at an angle 60degree with the horizontal. the weight(W) of the plane is 90,000N and its engine provides a thrust(T)of 120,000N in the direction of flight . two additional forces are exerted on

    asked by ash on February 11, 2012
  87. History

    I need to know Howards University endowments. This site is an article on the endowments at Howard.

    asked by Ronald on November 26, 2006
  88. Chemistry

    Potassium is a reactive element. Bromine is a reactive element. Write the complete balanced chemical equation using appropriate chemical symbols for the reaction when potassium reacts with bromine to make a solid product showing correct symbols and states

    asked by Anon on March 26, 2017
  89. Quadratic Equations and Functions

    I started having trouble on part (c), and I need to know this before I can go onto the other problems. Plz help! The parabola shown at the right (no picture, sorry) is of the form y=x^2+bx+c. The graph's y-intercept is (0,2), the axis of symmetry is -2.5

    asked by Emily on February 5, 2007
  90. Chemistry

    The molar mass of the reagent, Fe(NH4)2(SO4)2.6H2O is 392.14 g/mol. Now suppose the measured mass of Fe(NH4)2(SO4)2.6H2O during the practical was 0.0218 g and this was dissolved in 50ml of deionized water that contains 1 to 2ml of concentrated sulphuric

    asked by Mara on November 10, 2015
  91. M,ath

    How do we find the greatest common factor of a polynomial? Demonstrate the process with an example, showing your work. When finding the greatest common factor of a polynomial, can it ever be larger than the smallest coefficient? Can it ever be smaller than

    asked by Anonymous on November 22, 2010
  92. Math

    1. Graph the solution of the inequality. x ≤ 3 2. The number of words x Tina can type per minute is at least 50. Write and graph an inequality to describe this situation. (1 point) x ≥ 50; x ≤ 50; x ≥ 50; x > 50; 3. Gavin needs to read at least 150

    asked by Anonymous on November 16, 2016
  93. calculus

    You work for the silver there is a home with a driveway 2 miles long extending to the house from a nearby highway. the nearest connection box is along the highway but 5 miles from the driveway. it costs the company $100 per mile to install cable along the

    asked by scott on February 15, 2011
  94. Math

    As a tornado moves, its speed increases. The functions S(d) = 93logd+65 relates the speed of the wind, S, in miles per hour, near the center of a tornado to the distance that the tornado has traveled,d, in miles. a) Graph this function. b) Calculate the

    asked by NeedHelp on November 27, 2016
  95. Chemistry

    X2 + Y2 2XY 0.50 mole each of X2 and Y2 are placed in a 1.0 litre vessel and allowed to reach equilibrium at a given temperature. The equilibrium concentrations of XY is found to be 0.025 mol/L. What is the equilibrium cosntant for this reaction? Do I just

    asked by Janna on May 15, 2007
  96. chemistry

    Can someone help me to check my answer and the way I solve this problem is right or wrong? Determine the energy required to turn a Na metal atom into a gas phase ion (Na+ (g)). Ionization energy of Na(g) 499 kJ/mol Electron affinity of O(g)for2e- 603

    asked by Jenny on September 7, 2012
  97. Math

    Pls check - Solve 9^2-7 (16÷2^3) 9^2-7 (16÷8) 81-7 (2) 81-14 67

    asked by Gio on October 20, 2013
  98. English

    I need help on sentence check 2 chapter13

    asked by Odai on November 6, 2014
  99. write a check

    How to write a check for 4,024.29

    asked by Jessica on February 27, 2010
  100. math

    solve 9x

    asked by es on January 2, 2013