1. Chemistry

    Would the molecular ratio of the equation 4Na + O2 = 2Na2O be 4:2?

    asked by Beth on November 11, 2010
  2. linear equations

    Having trouble with this one. Thank you. Graph the equation and identify the y - intercept. y = 4/3x+2. (0,?) Thank you

    asked by Jessica on November 11, 2010
  3. Math Help PLEASE!

    Find the equation of the hyperbola whose vertices are at (-1,-5) and (-1,1) with a focus at (-1,-7). Please and thank you.

    asked by TJ on April 21, 2012
  4. ALGEBRA

    GRAPH THE EQUATION AND IDENTIFY Y INTERCEPT. y = x + 3; I tried this one can you tell me if I'm correct?? Let x = 0, then y = 3; (0,3) Let y =0, then x = -3 (-3,0) THANK YOU!

    asked by Amy on November 11, 2010
  5. Math 8R - HELP!

    Multi-Step Equations Systems of Equation 2x = y 4x - y = -2 please help!!!!!

    asked by Laruen on January 29, 2013
  6. Maths

    Analyse the following equation using rotational axis 4x^2 + 9y^2 - 8x + 36y + 4 = 0

    asked by Kennedy on December 17, 2016
  7. math

    How do you solve an equation with trinomials and polynomials equal to zero?

    asked by Primrose on March 12, 2014
  8. Algebra 2

    √3x-4=2√x-5 Solve this equation, if there is more then one answer separate with a comma

    asked by Nancy on April 18, 2012
  9. Algebra 2

    √3x-4=2√x-5 Solve this equation, if there is more then one answer separate with a comma

    asked by Nancy on April 19, 2012
  10. Pre Calculus

    Write the rectangular equation in polar form... x=3

    asked by Alexis on March 13, 2014
  11. Calculus

    find the equation of a tangent line of x^(1/4) + y^(1/4) = 4 at the point (16,16)

    asked by kevin on November 14, 2010
  12. Algebra 2

    Find the equation of the line parallel to y=2x+6 and passing through (4,5)

    asked by Anonymous on February 25, 2019
  13. Algebra 2

    find the equation of the line with a slope of 4 and passing through (0 3)

    asked by Anonymous on February 25, 2019
  14. math

    determine the equation of the graph in the form y=acos(bx)

    asked by Anonymous on December 14, 2016
  15. Calculus Tangent lines

    find the equation of a tangent line of x^(1/4) + y^(1/4) = 4 at the point (16,16)

    asked by kevin on November 14, 2010
  16. Algebra

    How can I rewrite an equation and graph it if it’s negative? For example; 12x- 4y=24

    asked by 😍 on February 13, 2019
  17. Chemistry

    How do you balance the equation? MnO4^-1(aq) + C2O4^-2(aq)-> Mn^+2(aq) + CO2(g)

    asked by Cris on November 14, 2012
  18. Math

    use the inverse operation to solve below equation. 19= h/3-8 equals 81 Thanks

    asked by Jamie on October 29, 2017
  19. Math

    Explain how you can use mental math to solve the equation 8^(x-4)=1.

    asked by Kim on March 14, 2018
  20. maths

    solve the equation express the answers in p and q x(square) - (p+q)x + (p+1)(q-1)=0 Then x=? or x=?

    asked by Jayden Haddy on August 3, 2013
  21. Math

    Find the equation of a line that is perpendicular to 3x-2y=6 and passes through (1,2)

    asked by Crystal on February 22, 2010
  22. math

    6x-4y=8 have to find the slope for that equation, and the y-intercept, so I'll start with x=0

    asked by Stephanie on July 12, 2010
  23. calculus

    f(x)=(x^2+1)(1-x-x^3).Determine the equation of the line tangent to f(x) at the point (1,-2).

    asked by jump on September 30, 2012
  24. Algebra

    help me solve this equation by substitution. y^2− 4x^2 = 7 9y^2+16x^2 = 323

    asked by Tom on November 9, 2012
  25. math

    Solve each equation by factoring v(squared) - 10v + 21 = 0

    asked by Help on August 7, 2013
  26. geometry

    determine the center of the circle whose equation is x^2+y^2+8x-12y+34?

    asked by Anonymous on March 15, 2018
  27. Pre-algebra

    How do you write an equation to determine possible values for a perimeter =52

    asked by Aaron on September 27, 2012
  28. math

    Find the equation of the line tangent to f(x)=3x^2-2x-1 at the point where x=2

    asked by gerald on August 1, 2013
  29. ALGEBRA I

    Which equation is represents the line that passes through the points (6,-3) and (-4,-9)? a. y+4 =3/5(x+9) b. y+4=5/3(x+9) c. y-3= 3/5(x+6)****** d. y+3=3/5 (x-6)

    asked by SAM on October 25, 2017
  30. Calculus

    Find an equation of the tangent line to the curve for the given value of t. x=t^2-2t, y=t^2+2t when t=1

    asked by James on November 13, 2012
  31. math,algebra

    what error am i doing here? can someone explain to me. The equation: 2(x – 2) = x + 3 First step in solving:

    asked by jasmine20 on December 19, 2006
  32. Algebra 1 (Reiny or Kuai)

    Determine a relationship between x- and y-values. Write an equation. {(1, -1), ( 2, -2), (3, -3), (4, -4)

    asked by Anonymous on November 4, 2013
  33. 7th grade math

    how do I write an equation for "fifteen decreased by twice n equals 13"

    asked by karen on November 13, 2012
  34. chemistry

    Na3PO4(aq) and AgNO3(aq). Write the ionic equation.

    asked by melinda on November 4, 2013
  35. principles of algebra

    Translate to an equation: r $2 roses and t $2.50 tulips total $30

    asked by zuly on September 26, 2012
  36. math

    how do I write the equation for fifteen decreased by twice n equals 13?

    asked by karen on November 12, 2012
  37. Algebra 1

    Find the x-intercept of the graph of the equation. 9x-4y=10 Is the answer: 10/9

    asked by Mary on October 29, 2013
  38. maths

    prove that if m is not equal to n, the equation (m^2+n^2)x^2 - 2(m+n)x + 2=0 has unreal roots.

    asked by Jayden Haddy on August 11, 2013
  39. Math

    How would you differentiate this equation? 1/6(2x-3)^3 -4x Here's my working u = 2x-3 y = 1/6u^3 dy/du = 1/2u^2 du/dx = 2 dy/dx = dy/du x du/dx = (2x-3)^2 -4 Is this correct? Thanks for checking!

    asked by Autumn on November 9, 2017
  40. John

    solve the quadratic equation 4x^3-20x^3+13x+12=0

    asked by Daniel on November 11, 2017
  41. Chemistry

    How would you balance this equation: CuS + KCl = ? Can you explain.

    asked by Mary on January 28, 2009
  42. Quadratic Equations

    If I were looking at a graph of a quadratic equation, how do I determine where the solutions are?

    asked by Lynn on September 2, 2010
  43. Calculus III

    Find an equation of the plane passing through the three points given. P=(5,1,1) Q=(1,1,2) R=(2,1,1)

    asked by Calvin on September 2, 2010
  44. math

    please help me how to solve cubic equation : h^3 - 36h^2 + 2356.6 = 0 thanks..

    asked by anet on October 25, 2013
  45. Math help

    Solve this equation and check answer Fraction→n/56=8

    asked by Nina on October 24, 2013
  46. Math

    What value of b makes the equation below true? b+1/4=12/12 Please show work Thanks

    asked by Jennifer on November 7, 2012
  47. math

    describe the picture you would get by graphing the solutions(if there are any!) to the equation (x+y)^2=x^2+y^2

    asked by dan on October 3, 2012
  48. math

    write as an equation- seven more than twenty less one half of six is thirty four

    asked by olivia on February 11, 2010
  49. algebra math 208

    write each equation in slope-intercept form y+3= -3(x - 6)

    asked by anita on July 15, 2010
  50. Math

    For the equation -4y=8x, what is the constant of variation? A -4 B -2 C 1 D 2* Can some one check my work?

    asked by Blaw on November 6, 2017
  51. math

    Find an equation for a line that contains (-4, -3) and is parallel to the graph of 2x - 5y = 40 1. y = -2/5 x + 4 3/5 2. y = 2/5 x - 1 2/5 3. y = -5/2x - 13 4. y = 5/2x + 7

    asked by Shiv on March 12, 2018
  52. math

    Find interval length 1/4 in [1,2] containing the root of the equation x^7 +3x-10=0

    asked by lola on October 2, 2012
  53. math

    If given a set of functions, how do you write an equation for them? For example: x: 1,2,3,4,5 y:5,10,15,20,25. I am confused.

    asked by courtney on February 10, 2010
  54. Chemistry

    Write an equation that explains the conductivity of NH3

    asked by Jackson on February 10, 2010
  55. math 208

    write each equation in slope-intercept form. y+3=-3(x-6)

    asked by anita on July 15, 2010
  56. Math

    What value of b makes the equation below true? b+1/4=12/12 Please show work Thanks

    asked by Jennifer on November 7, 2012
  57. Math help

    Solve this equation and check answer Fraction→n/56=8

    asked by Nina on October 27, 2013
  58. Pre Clac

    Determine k and solve the equation: x^3-kx^2+3x+54=0, if one of it zeros is triple of another.

    asked by Katie S on September 1, 2010
  59. Algreba

    Solve the following linear equation and simplify your answer. −18(y+34)=38(y+18)

    asked by Monica on October 25, 2017
  60. MAth

    If you are looking at a graph of a quadratic equation, how do you determine where the solutions are?

    asked by dawn on August 1, 2008
  61. algebra

    how to graph point-plotting method this equation? x=y^2 + 2

    asked by wanda on September 17, 2012
  62. chemistry

    The equation Mg(s) 2HCl(aq)---MgCl2 (aq) H2(g) is an example of which type of reaction?

    asked by natasha on July 29, 2008
  63. Math

    Write an equation of the line that passes through the points (-8, -1) and (-5, 9).

    asked by Neil on September 17, 2012
  64. math

    y=3.0,2.2,1.9,1.6,1.4,1.2,1.1,1.0,0.88,0.83 x= 2,3,4,5,6,7,8,9,10,11 how do you find the equation curve of best fit with these numbers

    asked by Unknown Girl on November 19, 2012
  65. chemistry

    symbol used in a chemical equation to indicate the phrase with react with?

    asked by kate on February 3, 2009
  66. Math

    Is the equation true, false, or open? 9p+8=10p+7

    asked by Anonymous on October 6, 2017
  67. CALCULUS

    AN EQUATION OF THE LINE NORMAL TO THE GRAPH OF Y= SQRT[3X^2 + 2X] AT (2, 4) IS??

    asked by JIM on January 2, 2009
  68. geometric series

    what is the nth term equation for a geometric sequence with a1 = 36 and r = 1/3

    asked by raven on September 13, 2010
  69. math

    rewrite the equation so that y is a function of x.then use the result to find y when x= -2,-1,0,1 6x-2y=10

    asked by brittney on November 19, 2012
  70. math

    rewrite the equation so that y is a function of x.then use the result to find y when x= -2,-1,0,1 -6x-1=-4y+2

    asked by brittney on November 19, 2012
  71. Math help

    Find the equation of the line containing the following pair of points (-1,-7)(-4,-9)

    asked by tera on February 4, 2009
  72. MATH

    Use a property of rational exponent to simplify this equation (C^6) ^7

    asked by Anonymous on September 29, 2017
  73. algebra

    Solve the following equation for p: 5s - 3p = fp + 12 the fp is confusing me so much, I've tried solving it so many times but this keeps getting me

    asked by Kelley on September 30, 2017
  74. algebra

    wat is the answer to the following equation by using the substitution method? x=6y-4 x=-2+28

    asked by ki ki on July 2, 2010
  75. trig

    2sin(3x-3.14)-1 find the inverse form of this equation

    asked by bob on February 8, 2010
  76. calculus

    Find an equation of the tangent to the curve f(x) = 2x^2 - 2x + 1 that has slope 2.

    asked by theophilus on July 4, 2010
  77. math

    Solve each equation by testing the given values for a variable y-9=11 y=18, 19, or 20

    asked by Gio on November 20, 2012
  78. pre-algebra

    find the two ordered pairs that you can use to graph the equation y=-1/3x-2

    asked by krystle on November 11, 2013
  79. math

    rewrite the equation so that y is a function of x.then use the result to find y when x= -2,-1,0,1 -2y-3x-16=0

    asked by brittney on November 19, 2012
  80. Algebra equation

    Any advice on this one would be appreciated I have the equation x+3-1/x=0 and I have an answer of x = 0.30 (to 2 d.p.), I just need to know the steps to get there, Many thanks

    asked by Nev on July 8, 2010
  81. Math

    Solve for B: A=1/2(b+B) h show work. I am struggling with the above equation can someone please help? Thanks

    asked by A on November 10, 2013
  82. HELP ! Algebra

    Solve the quadratic equation by completing the square. (-x^2 + 6x + 10 = 0)

    asked by Robert on November 16, 2012
  83. math

    use the quadratic formula to solve the equation: x^2+10x-10=0

    asked by key on January 4, 2009
  84. Math

    How do you write this equation in standard form? F=-0.04m+12

    asked by Anonymous on November 7, 2013
  85. Alg 2 (HS)

    If Y varies inversely as 3X^2, determine what Y would be if X = 4 and another point on the equation is (2, 48).

    asked by Gregory B. on September 22, 2012
  86. math

    solve my system of equation with full steps 3x+4y=29 2x–5y=-19

    asked by kate on July 24, 2013
  87. math

    Find an equation of the line containing the given pair of points. (1,5) and (3,6) y =

    asked by SchuRonda on September 10, 2010
  88. math 6th grade

    How to write an equation: Forty percent of a number,y, is 48.

    asked by agnes on January 4, 2009
  89. Math

    What is the slope of the line represented by the equation y = 4? 0 4 -4 Undefined *I think it's 0?Is it? It is zero. (4-0.4)/4= (4-0.4)/4=

    asked by Francheska on November 7, 2006
  90. Math

    Write a comparison sentence yo represent this equation. 6×7=42

    asked by Mia on October 12, 2017
  91. math

    2x^2 + 5x - 8 = 0 Solve the quadratic equation by completing the square.

    asked by Jack on September 20, 2012
  92. math

    2x^2 + 5x - 8 = 0 Solve the quadratic equation by completing the square.

    asked by Jack on September 20, 2012
  93. Algebra 1

    I need help with this problem. Write an equivalent equation by solving for y: 5x-6y=12

    asked by Marisa on October 8, 2017
  94. Linear Equations in Two Variables

    Find four solutions for each question and graph the equation. y=2x-3

    asked by Celest on July 23, 2013
  95. math

    Write a quadratic equation having the given number as solutions: c/2 and d/2

    asked by julissa on February 3, 2009
  96. Algebra 1 (Reiny or Kuai)

    Is the linear equation 3x - 2 = y in standard form? Explain.

    asked by Anonymous on November 8, 2013
  97. math-PLEASE HELP ASAP!!(IF POSSIBLE)

    Write the equation of the lines.....best answer will be chosen 1. (3,-6) 7y+4y=5 2.(4,7) 7x+y=6 3.(-8,8) 5x=7y+6 4.(3,8) x+9y=2

    asked by Michelle on July 9, 2010
  98. Algebra 1 (Reiny or Kuai)

    Is the linear equation 3x - 2 = y in standard form? Explain.

    asked by Anonymous on November 8, 2013
  99. Algebra

    Find an equation of the line passing through the points (2,3) and (6,-3)

    asked by James on October 11, 2017
  100. math

    Find the smallest value of x that satisfies the equation. absolute value of (x+5) = 3

    asked by anynomous on September 12, 2010

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