1. Pre calc

    Write the equation in standard parabola form? x^2+ 4xy +4y^2 +5root5 y+ 5 = 0
  2. algebra

    What is an equation of the line in slope intercept form m=2/7andthey-inteceptin,(0,12)answers are y=2/7x+12, y=2/7x-12, y=12 x-2/7, y=12 x+2/7 thank you
  3. chemistry

    the elements of group VII A form ions with a charge of: A) +1 b) -1 c) -2 d) +2 can u please explain too? thankyou
  4. math

    order the numbers form greatest to least 291;911;439;747
  5. Math;);)

    Use the vector form of the Law of Cosines to show that |u + v|^2 ≤ (|u| + |v|)^2 holds for any vectors u and v. What does this prove?
  6. Pre-Cal.

    use the complex zeros to give fully factored form, the first factor needs a x in it : (-3) (-2i)(x+2i)
  7. grade 12 calculus and vectors

    Determine the average rate of change form x = 1 to x = 4 for each function. a) y= x b) y=x^2 c) y=x^3 d) y=7
  8. chemistry

    Will a precipitate form when an aqueous solution of (NH4)4CO3 is mixed with Fe(NO3)3
  9. Algebra

    If h(y)=1+y/2-y, then what is the value of h^-1(5)? Express your answer in simpilest form. The first step would be to find the inverse of the 1+y/2-y which would be 2y-xy I think, and then would we plug in 5 for x or y?
  10. Math

    find the equation to the tangent to the curve y = (4x + 3)^5 at the point (-0.5, 1), giving your answer in the form y = mx + c
  11. Math Help ;)

    So, I've been stuck in these for quite some time.... can someone help me? Which ratios can form a proportion? A) 9/45 , 8/40 B) 8/12 , 12/21 C) 8/12 , 12/15 D) 9/22 , 14/28 I think it might be C but my brain is fried. Thank you so much, Jacob
  12. algebra 2

    given the zeros, write a polynomial equation in factored form.zero -5,9,12 show all the step please
  13. precalc

    Write the equation of the ellipse in standard form: 4x^2-9y^2-40x+36y+100=0
  14. calculus

    write the equation (in slope intercept form) of the line perpendiculaer to y=-X/2+1 and tangent to g(x)=3X^5+2X-1
  15. precalc

    Hyperbola: 25x^2+250x-36y^2-576y=2579 in standard form
  16. Maths

    Express each of the following in the form Rsin(x+a), where r>0 and 0< a <2pi (a) 5cosx + 12sinx (b) 12cosx + 5sinx
  17. science

    What conditions are present in stars that cause hydrogen to form helium? What is this process called?
  18. Calculus

    I have a problem about complex number. Let z=7e^(7*pi*i/4) . Write z, z^4, z^7, z^(-2) in the form a + b i I have no idea how to do it. Any hints will be appreciated.
  19. Complex number

    Express square root of(1-i/1+i) in form of a+bit where a and b are real numbers
  20. maths

    Show that r = 1/4 - 3Cos¦È is polar form of an ellipse and find its centre. pls can anyone could help with this.
  21. physical science

    nitrogen and hydrogen react to form ammonia as follows N2(g)+3H2(g) -2NH3(g)
  22. math

    Enter in standard form the equation of the line passing through the given point and having the given slope. B(2, - 5), m = -2/3
  23. math

    Find the standard form of the equation of the ellipse with the given characteristics and center at the origin. (2,0), (0,3/2), (-2,0), (0,-3/2)
  24. complex number

    express ln(sinh^-1(1+j) in form of a+jb help plz no ideal show step
  25. Chemistry

    What volume of 0.123 M AgNO3(aq) is needed to form 0.657 g of AgCl(s)? 0.564 mL. 18.6 mL. 37.2 mL. 1.77 L.
  26. Linear algebra

    In R2 plot and describe the set of all points P whose position vector is of the form p = s(1, 1) + t(−1, 1), 0 ≤ s, t ≤ 1
  27. math(ODE)

    there are 3 linearly independent solutions of the DE t^3.y"'+3t^2.y"-6ty'+6y=0 of the form t^p, find the possible values of p
  28. Representing numbers

    Write the word form and tell the value of the underlined digit for each number 76239
  29. Pre calc

    Write the equation in standard parabola form? x^2+ 4xy +4y^2 +5root5 y+ 5 = 0 Thanks so much!
  30. precalc

    Parabola: Rewrite 3y^2 + 6y + 108x - 969=0 in standard form, show work.
  31. math

    I need an answer to this question.Express the product of 0•006 and 0•0009 in the standard form.
  32. maths

    since a rectangle forms two area of a circle shouldn't it also form two circumference in a cylinder
  33. Math

    rationalize the denominator. Simplify. write final answers is standard form (a+bi). (4-5i)/(2-7i)
  34. 4th grade English

    Could someone tell me the possessive form of these words? foxes, monkeys, and pony
  35. chemistry

    72g of Mg reacted with 32g of oxygen to form 48g of Mg. So %yield of Mgo
  36. precalc

    write 196x^2-256y^2+17=12561 in standard form, show work.
  37. pre algebra

    express 56 novels out of 168 books as a fraction in simplest form
  38. math

    Find the prime factorization of the number, and write it in exponent form. 612
  39. chemistry

    what mass of water must react with calcium carbide for 3.9g of acetylene gas to form?
  40. math

    the mass of a grain of sand is 8.7*10^-8 write the nurmeral in secentence in standard form.
  41. math-PLEASE HELP ASAP

    Solve using elimination.......answers must be in ordered pair form....(this is the last one I am confused on) 4x-9y=6.5 7y-2x=-4.5
  42. Algebra

    Find the largest three-digit number that can be written in the form 3^m + 2^n, where m and n are positive integers.
  43. Chemistry

    How many moles of NH4Cl must be added to 1.5L of 0.2 M solution of NH3 to form a buffer whose PH is 9.(Kb=1.8x10^-5)
  44. biology

    maggots form on raw meat , kept open for a few days. give 2 hypothesis for it
  45. Pre-Calc

    What is the standard form of the equation of the parabola that has a vertex at (4, 3) and passes through the point (-4, -2)? Is it f(x) = -5/64(x - 4)^2 + 3?
  46. math

    Write 523,582,900,000 in scientific form Is it 5.235829 x 10^-11? Thank you.
  47. Math

    Write the standard form of the equation of the parabola whose directrix is x=-1 and whose focus is at (5,-2)? a) (y+2)^2 = 12(x+2) b) y-2 = 12(x+2) c) x+2 = 1/12(y+2)^2 d) x-2 = 1/12(y+2)^2 I get A and D? confused!
  48. Science

    In addition to Carbon and Hydrogen, which elements must be available to form a DNA nucleotide monomer?
  49. Algebra 2

    Write the expression as a complex number in standard form. (5-2i)-2(3+i) Please explain how to do this. I don't know how.
  50. algebra

    what is the equation of the given line in standard form. use integer coefficients y=-1.7x+8.5 Please explain not understanding
  51. precalc

    find the standard form of the hyperbola, the center and vertices given the foci (0, -+8) and asymptotes at y=4x
  52. Math Help!!!

    Use cross products to determine which of the following pairs of ratios cannot form a proportion. A. 1/3*3/9 B. 2/3*4/9 C. 2/3*4/6 D. 1/3*2/6 Is the answer B?
  53. art

    how Picasso used shape or form in the Weeping Woman, and the effect of that usage on the artwork.
  54. AP HISTORY

    What was the least common and least sucessful form of slave resistance pre civi war?
  55. french

    can someone help me write questions or sentences using the infinitive form of : 1. supporter 2. épouser 3. exiger
  56. Algebra

    Find the largest three-digit number that can be written in the form 3^m + 2^n, where m and n are positive integers.
  57. math

    Given that g(x)= 2x+1/5 and f(x)=x+4 Calculate the value of g(-2) 2(-2)+1/5= -3/5 Is this right?? How do i write an expression for gf(x) in the simpliest form?? And how do i find inverse functions such as g`1(x)?
  58. Calculus

    I am having great difficulty with this any help would be appreciated. Write this expression in the form e^kx for a suitable constant k.? (e^4x * e^6x)^3/5, 1/e-2^x
  59. math

    e.) 22, 344,579.06 a.) 1, 333.8 c.) 4.44 b) 2.97 d) 2.05 can you please put this in order from least to greatest in decimal form
  60. Math

    e.) 22, 344,579.06 a.) 1, 333.8 c.) 4.44 b) 2.97 d) 2.05 can you please put this in order from least to greatest in decimal form
  61. Math (check answers)

    1)What is the simplified form of the expression? 5d^6*d^-12? A)5d^-72 B)6d^-72 C)5d^-6**** D)6d^-6 I think that the answer is C. If anyone could tell me if I am correct that would be great.
  62. MATH

    write, in extended form, a polynomial(with real coefficients) of degree 3, with solutions 2,2-i.
  63. chemistry

    Is it possible to produce a form of sodium ferrate using these components? FeCl3 NaOH NaOCl
  64. Algebra II

    Write the equation siny=x in the form of an inverse function. Answer: x=Sin^-1y Thanks
  65. Algebra (Urgent)

    What is an equation in slope intercept form for the line that passes through the points (1,3) and (3,1)?
  66. Math

    Write the equation of a line, in general form, that has a slope of 4/3 and a y-intercept of -5. Help me please...thx
  67. Math

    Write an equation in standard form for each parabola. Vertex (0, 0) and directrix y = 6. y = -1/24x^2?
  68. Math

    a. Express f(x)=x^2 - 6x + 14 in the form f(x)=(x-h)^2 + k, where h and k are to be determined. b.Hence, or otherwise, write down the coordinates of the vertex of the parabola equation y=x^2 - 6x + 14.
  69. Algebra

    Write the slope intercept form of the equation of the line described: Through (-1,2), parallel to y = -x - 1 Answer: y = -x + 1
  70. English

    1. We are different, but same,too. 2. We are different, but the same, too. (Which one is correct?) #. Cash or charge? (What is the full form of this expression which a clerk says at a shop?)
  71. Chemistry

    Does the Hydrogen Bondings in ice form, break, and reform all the time, just like in water?
  72. math (comparing ratios)

    the question says →4 feet to 4 inches and i have to do it in simplest form
  73. biochem

    If you were to place a bacteria that could form spores in a stressful environment, what would the cell morphology look like?
  74. Geometry

    Given triangle GHI with G(4, -3), H(-4, 2), and I(2, 4), find the perpendicular bisector of line HI in standard form. Please help? Thanks
  75. Algebra

    Write the ratio 16:24 in simplest form 1:2 4:3 3:4** 2:3 @Mrs.Sue can you please check my answer
  76. math

    For the function f(x)=-2x^2-6x-7 find: a) an equivalent equation in the form f(x)=a(x-h)^2+k b)the maximum or minimum (also decide which) please help and thank you
  77. Science

    in a liquid form which one could be considered an electrolyte H2so 4 Hcl, C3h8 or Naci
  78. Math

    Find the prime factorization of the number 612, and write it in exponent form.
  79. math

    Put into slope intercept form: (2,5) m=3 I have a quiz tomorow, and i need to make sure im doing the steps right, so then do you do..: ? 2=15+b -13=b y=3x-13 ???
  80. LA

    what form of poetry are the poems shaped to look like their subjects? A) limerick B) haiku C) concrete D) narrative I think it is either B or C can someone please help me?
  81. chemistry

    Will a precipitate form when an aqueous solution of (NH4)4CO3 is mixed with Fe(NO3)3
  82. Math

    47 Fahrenheit = Celsius give answer in decimal form, to the nearest tenth?
  83. Algebra

    Write the expression as a complex number in standard form. ____5____ 2- i =2+5i Did I get the right answer?
  84. please help solve algebra problem

    add, express answer in simplest form 4x/x^2-18x+72 + 4/x-6
  85. math

    Find the standard form of the equation of the parabola with the given characteristics. Vertex: (-9, 8); directrix: x = -16
  86. Algebra

    Find the largest three-digit number that can be written in the form $3^m + 2^n$, where $m$ and $n$ are positive integers.
  87. math

    write 66 2/3% as a fraction simplest form what i did: i put 66 2/3 over 100. i don't know how to divide that
  88. ALG 2

    Determine the standard form of the equation of the line that passes through (-6,6) and (3,-2). My slope is -8/9 Y=mx+b -2=-8/9(3) + b SOLVING FOR b -2=-24/9 + b WHAT DO I DO NOW
  89. biochemistry

    If you make up a solution of 100 mL of 0.1 M HEPES in the basic form, what will be the pH? I have no idea where to even start...
  90. Biology

    Which chordate structures are lost when a larval tunicate develops into the adult form?
  91. Math

    How do you form an equivalent division problem for 8 1/2 divided by 1/2 by doubling both the dividend and divisor
  92. algebra

    Write an equation in standard form for a line passing through the pair of points. (5,3) and (-3,-8)
  93. Algebra 2

    Write the expression as a complex number in standard form. 3-3i/4i I'm not sure about this problem, but I think the answer is -3/4i-3/4. Could anyone help me please?
  94. Math

    What is the simplified form of this expression? m^9t^-10/m^-4t^-5 m^13/t^15 m^5t^5 m^13/t^5 m^-13t^-15 I think it's the third, but I'm not sure if that's correct. I would appreciate if someone could show me how to solve it if it's incorrect.
  95. Math- Algebra II

    9x^4/16y^6 How to I simplify it must be written in exponential form and no negative exponents. HELP
  96. math

    Convert eat of the following repeating decimal to a/b form, where a and b are integers and b doesn't equal 0. a. 0.7 c. 2.37 e. -4.34
  97. Radicals

    Express in simplest radical form. Do NOT give decimal approximations. 1. n^3/4 p^5/4 2. (3r)^2/5 s^3/5 3. (1/32)^0.2 4. 140^-1/2
  98. Maths

    Evaluate the expression √−7/√ −6√−5 and write the result in the form a+bi. I keep getting b as 0.483i but apparently its wrong?
  99. culture diversity

    I have to write first person account in the form of journal entry could you please give me an example of this?
  100. chemistry

    Will you please help me write this equation in net ionic form. I2(s)+Na2S2O3(aq)-->Na2S2O4(aq) +NaI(aq)