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  1. Electrical Equations Transpoition: solve Zs = Ze+((R1*C1)+(r2*c2)*L)/1000 for L, r2
  2. I need an equation: I have the weights of two ingredients...
  3. Stumped by a story problem: "A candy maker makes two sizes of candies...."
  4. Basic algebra help please
  5. Word Problem Help? "Dave and Sandy are frequent flyers with a particular airline...."
  6. Please help w/ √2 * b * b = 1256 How can the answer be 105.1?
  7. Help solving a fourth order polynominal
  8. sum of the tens digit and twice the units digit of a two digit number is 14.
  9. Find for X for m(RXM)=x+81, m(RXT)=2x+32 (Geometry Question)
  10. Please help me understand how this works: sqrt[sqrt[sqrt[sqrt[2]]]]=2^x
  11. Quadratic simultaneous equations: X squared * Y squared =5, Y-X=3
  12. Find values of b so that t^(2)+bt+81=0 has one real solution
  13. VAT charged at 20%, so 19,800 represents 120% of price before VAT
  14. Fuel Economy is terrible, at 0.65L per km; develop linear model for remaining fuel
  15. Solve for x please -2e^-x = ??
  16. Need a Second Function to Limit the Growth of an Exponential Function
  17. Dose rate calculation: 20 mSv per hour at 10 micrometres
  18. Factorising brackets with powers: (p+1)^2 + 2(p+1) and (2q+3)^3+(2q+3)^2
  19. Algebraic fractions in a linear sequence: 2/x+3, (missing term), 2/2x-3
  20. Linear eqns: Driver 1 goes V_1 for t_1 hrs; Driver 2 goes V_2 for another t_2 hours.
  21. Polynomial theorem: For all poly's p(x),q(x) there exists poly's k(x),r(x) such that
  22. Need help plz: Mark arrived at his office at 12 pm. If he had increased his speed...
  23. Have to solve x^2 + 2x + 8 = 0; answer should be R
  24. Is this conversion valid? Y = u + v − v *t* Y + I + G to Y (1 − v + v* t) = u + I + G
  25. Correcting data readings of humidity, temperature in building project
  26. Point of intersection of circle (x-2)^2+(y-3)^2=6, parabola y=-2x^2+14x-1
  27. Factor theorem proof: Why don't we write p(x) - p(y) as...?
  28. How to find the minimal distance between a 2D point and a 2D line?
  29. How to calculate the value of C, if -C=1?
  30. Fundamental theorem of algebra question: Why/how does q(x) = a_n ?
  31. How to calculate the value of b if the equation is 1/T^2=1/T^b?
  32. Truth tables help: "p or not-(not-(not-q))) = not-q and p" ?
  33. A second truth table query: "[not-(not-(not-p))] -> q = p or q" ?
  34. Which one is valid below? Is '5.42 X 10^5' equal to 542000. X 10^1 or 542000. X 10^0
  35. Rounding off to correct significant figure: If we add 3.46 and 2.3 we get 5.76....
  36. Transitivity with implied logic
  37. Is zero a positive integer? Could it be a prime number?
  38. Determine a third-degree polynomial with integer coefficients and roots 1/2, 1/3, 1/4
  39. When is it true that F(x + y) = F(x) + F(y)
  40. Need help with Algebra: In "( 4X - 6 ) / 7 = 2", what does "/" mean?
  41. The Division Algorithm: need proof for "f(x) = q(x)g(x)+r(x) where r(x) is either..."
  42. real numbers: which is true? I. m2⎯⎯⎯⎯⎯√ II. ||−m|| III. −||m||
  43. graphical inequalities: Pick system of linear inequalities that best fits picture
  44. When does (a+b)^2 = a^2 + b^2 hold true?
  45. Radical exponent distribution to polynomials, like "like (x + 1)^1/2"
  46. How do I write this in polar form? (squareroot(6) + i squareroot(6))^4
  47. Find smallest integer s.t. when div. by 15, remainder is 14, and likewise when...
  48. combining like terms - error in my pattern: 25 - (-10m) + 7 + 5m - (-3) + 26 = ?
  49. Systems of Equations real life scenario: m+s=12, 6m+4s=?
  50. x on both sides of proportion: (4x + 8)/6 = (7x - 3)/4
  51. Induction proof: 1^3+2^3+...+n^3=(1+2+3+...+n)^2
  52. Help with this problem please: Express X/2 - 2x + 2y/ 4y as single fraction
  53. Please help. I dont understand this stuff.
  54. Solving A Quadratic Equation by Completing the Square
  55. Son needs help
  56. Rearranging Heron's formula
  57. Greatest Integer
  58. Confusion over inverse of a function (involution)
  59. For right-angle triangle prism, show that x satisfies the equation 3x2 - 14x +16 =0
  60. This sentence is false
  61. Rate distance Time Problem
  62. Which one is bigger 1 g or 1.6605 X 10⁻⁴ g ?
  63. Set notation: {x∈ℕ∣x+3∈ℕ} is evidently equivalent to {0,1,2,3...}...?
  64. Rationalizing denominators using conjugate surds: Why use fraction w/ num. = denom.?
  65. Quadratic equation and probability: bag contains n yellow balls, 7 white balls
  66. Set notation question: If A = {x∈ℕ: x is even } and B = {x∈ℕ: x is odd }...
  67. Very difficult question: Resolve x^8 + y^8 into real quadratic factors.
  68. Simplify the Surd (3+2sqrt(5))/sqrt(5): my answer is (3sqrt(5) + 10)/5
  69. When to use x^2 coefficient in bracket and when to factorise outside bracket
  70. How many significant digits are in 1040. and 1040.0?
  71. Proving Abolutee-Value Identities: |x^2| = |x|^2, |x^n| = |x|^n, |x| = sqrt{x^2}, ...
  72. finding the value of this equation: find the value of m when : sqrt(128)= 2^m
  73. If f = A (dv/dx), then how to calculate the value of f?
  74. Is this a valid expression? x/x-1 = 1/x-1 It would appear that x=1 but that would...
  75. Why X^(1/2) = root X and X^(-1/2) = 1/root x?
  76. If y^2 = 4, then why do we get two values +2 and -2 of 'y'?
  77. If x^2 = root (y), then how to calculate the value of x?
  78. If f(x)=f(x-1)+5x and f(1)=2 then how to find f(20)?
  79. Word problem: At 6am, 2 ships leave a port, one going S at 18kph, other going W at 23
  80. Why sinx.sinx = sinx not sinx?
  81. Finding proportions of simple shapes using algebra
  82. Quadratic factoring w/ 3 brackets: solve (x^2 - 4) - 2(x -2)(x - 1) = 0 w/o expanding
  83. Need Eqn for shop: cost $X, sell at Y; Y reduced by 15% & 3; should equal Y
  84. Easy One Guys
  85. If a = b + c then how to cal calculate a = b + C?
  86. I need help w/ "If f(2) = -5 and f(-4) = 3, what is the value of f(9)?", ...
  87. Cross multiplying vs the long way (doing the same thing to each side) to solve for x
  88. Absolute Value Inequalities
  89. If A = i + j +k and B = -i + -j + -k, -A and -B?
  90. How to solve age problem: Casey is 4 years older than Aaron....
  91. Help me to solve this math problem? "Three foreign languages are offered at school."
  92. Meaning of symbol: ^
  93. Mixture problem: A farmer has 242 goats and sheep in total.
  94. Can someone Please help me understand this? 2x + 5y = 10 and the graph it
  95. How to go about solving this problem? (3x^2-2x)^6x = 1
  96. Finding an equivalent equation by adding x and then [subtracting] 1/2
  97. Square Root Within Square Root: √(6-√11) + √(6+√11) can be expressed as √w
  98. Balls in a Box: filling playpen with plastic balls: how many balls needed?
  99. How and what to start with: 3x+2y-2=2y+1x
  100. How to solve this candy boxes problem?