Math(Please help)

187,645 results, page 24

  1. math

    If a2 + b2 = 15 and ab = 3, then the value of (a-b)2 is: A. 21 B. 18 C. 12 D. 9 E. 3 I really don't understand how I could possibly get this... can I please get some help?
  2. math

    Please explain the steps on to solve this equation. x^-6 - 8x^-3 + 16 = 0 k^-4/3 - 10k^-2/3 + 21 = 0
  3. Math HELP please

    ____ How do you simplify these? / \/ 24 Including numbers such as 40 60 and 48?
  4. math

    Can anyone please teach me how to solve for x in terms of a,b,c in this problem? Thanks a lot! ax^2+bx+c=0
  5. math

    How to find the solution set in a+bi form for this equation? 6x^2+4x+1=0 PLEASE HELP!THANKS!!!!
  6. math

    please help factor prime expression 4k^2+20k+25 16e^2-4 thank you thank you
  7. math

    what is the slope and y intercept for the equation y=2/3 x +1 please show the work Thanks
  8. Math 116 algebra please check

    Evaluate x+y/6 for x =57 and y=3 the answer is x+y/6=10
  9. Math 116 algebra please check

    Solve -0.8x < -56 The solution is x<70
  10. Math 116 algebra please check

    Solve 8x - (5x + 7)= 17 The solution is x= 8
  11. Math 116 algebra please check

    Solve 5/2x + 1/4x = 9/4 + x The solution is x 9/10
  12. math

    I know i'm a slow bunny and the answer is in my face but please help! (4p-1)(16p^2+4p+1)
  13. math - scientific notation

    please check. thanks. (8.3 x 10^-15) (7.7 x 10^4) = 6.391 x 10^-10 Is that right?
  14. math

    please help for this question y1= x^-5x+6 and its reciprocal: discuss what is the consequences for y1 to 1/y1 as x --> +- infinity?
  15. Math

    Express 5(sqrt3-5i) in polar form. I don't undersand. Please and Thank You
  16. math

    please help simplify (xy^5)^3/x^y^4 is the answer xy^11 let me know if u don't understand b/c of how i setup the question
  17. math

    I really need help with this problem!!! Solve for the unknown: 8/52=m/39 Help Please!!!!
  18. Math

    i am having problems solving this question can you please help? b[(12c-3a)2-10= a=2, b=3, c=4
  19. math

    write each decimal as a percent. 2.687 0.015 0.64 please help me with these!
  20. math [ i need help with these.]

    2. 2x(x+3)=0 2x^2+3x=0 [i don't know what to do.] 3. y^2+8y=0 4. x^2+3x=28 5.2x^2+9x-5=0 2x^2+9x=-5 [please help me by starting off the problems, or explaining for each.]
  21. Math

    Graph each of the equations given using a T-chart. 1. x + y = 3 2. 3x + y = -4 Help please I don't get it. Thank you,
  22. math

    Could someone please check these for me? 1. Find the function value if x=2 f(x)=x^3 F(2)=8
  23. math

    will you please help me find out the definition to the word RANGE ?
  24. Math

    f(x)=x^2-6x+2 Find the h, the x-coordinate of this parabola. Can you please show work??!!
  25. math

    Solve the following equation -5x + 1 > 11 Please include work
  26. math

    can someone check this please find indicated outputs for f(x)= 4x^2 - 2x f(0)=0 f(-1)=6 f(2)=14
  27. math

    is this a radical expression ã12-ã27+ã75= please help
  28. Math

    please explain to me how to figure out what fraction is greater. ex. 5/6 __ 1/8
  29. math

    what is the formula for the area of a trapezoid? please include a diagram
  30. Math (graphs) PLEASE help!

    I need a suggestion for what to go by for a couple of charts. 1. (-4,1), (-1,3.4), (1.5, 5.4), (6.4, 9.32) and (9,11.4) 2. (-4, 4.4), (-1, 2), (2.4, -0.72), (11, -0.76), and (14, -10) Thank you!
  31. Math/Algebra

    Can you please help me with this question. Use a model to find (a+b+c)^2
  32. Gr. 10 math

    Factor by Grouping.please show me the steps!!!!!!! 1.) y2+11y+30 2.) x2+4x-5 3.) a2-a-56
  33. Math

    What is a positive angle less than 2 pi that is coterminal with -pi/30? im so confuseddd i don't know what to do!!!!! please help
  34. math

    state the slope and the y-intercept for the graph of y=-4x explain please
  35. math- pre algebra

    can you help me with this equation and may you please show your work? -3=3-y
  36. math

    What is the linear system? 2x+2y=16 4x-6y=2 I am using elimination to solve Please help!
  37. Math

    I am not sure of this problem could you please help me? Thanks. Use sets to verify that 8>6.
  38. math

    3x + 5y = 11 are (9,-3) a solution. the answer I got was no can someone please help me if that is incorrect.
  39. math

    please guide me in writing this ratio to the simpliest form - 3 1/2 to 14
  40. Math

    PLease help with this problem. My friend and I differ on answer. (3abc^2 )^4/(7a^2 b)^4 =
  41. math

    Please help!!! Write 4 7/8 as percent: 4/1 *7/8 = 7/32 = 0.21*100= 21.875% is this correct?
  42. Math

    Can somebody please help me with rounding decimals to the nearest tenth ??
  43. Math

    r/5-3=2r/5+16 Please help me solve for r, I just can not seem to figure it out.
  44. MATH 116

    graph the equation & identify the y-intercept PLEASE!!! X + 5Y=25
  45. math

    please help, I have a test tomorrow and i don't get this. solve by substitution 1. y = x - 3 x + y = 5 2. 5x + 2y = 0 x - 3y =0
  46. Math

    Please help, how do I solve this: 7 gal/wk = ___ qts/hour
  47. Math for educators

    Help please! What is the domain and range for the following numbers 2.68, 2.58, 2.38? Thank you
  48. math

    solve the equation and please show the work. sqrt x+2-5=0
  49. math

    I meant 142 divide 24,please show how you solve it.
  50. math

    Please prove: 2sinx+sin2x = 2sin^3(x)/1-cosx
  51. math i need help please

    solve the equation 13a=65 a.845 b.30 c.5 d.15
  52. math

    1) Find the period and the amplitude. y= 3 sin 2x Please explain!!!
  53. Math

    1) Find the period and the amplitude. y= 3 sin 2x Please explain!!! I do not know how to do this.
  54. math

    Solve this equation: -9h - 6 + 12h + 40 = 22. can u please help i'm lost here.
  55. Math

    -10m^-1y^0r _______________ -14m^-7y^-3r^-4 Please help me simplify this polynomial.
  56. Math 1

    Please also explain how you got the answer if you know it. Thanks. : Solve for x. x2-4x+2 = -2x+5 A) (-1,7) B) (3,-1) C) {-1,7} D. {3,-1}
  57. math

    Please also explain how you got the answer if you know it. Thanks. : Solve for x. x2-4x+2 = -2x+5 A) (-1,7) B) (3,-1) C) {-1,7} D. {3,-1}
  58. Math

    Can you please check to see if these are right? We have to set each of them to y. Thank You. x-y=-3: y=-3x 2x+y=5: y=5-2x 2x+y=8: y=8-2x
  59. Math!!

    Change 450% into a a fraction Please help LOVE YA!!!
  60. math

    L,M,N,O and l,m,n,o are they equal, equivalent or neither? I can not figure this out please help.
  61. math

    Can someone please help. I keep coming up with different answers. 3x - 2 > -2x + 4
  62. Math

    solve by addition method: please show work. -3x + y = 3 2x -3y =7
  63. Math

    Could someone please help me with this question? Thanks! Reduce (x^2-5x+6)/(x-2) to lowest terms
  64. Math

    Simplify that rational expression. Please show the steps x^3-8/x^2-4
  65. Math

    Identify the vertex, intercepts, and zeros of the function. g(x) = x^2 + 8x + 11 Please help!!
  66. math

    -8<3x-5<-4 unsure how to solve can someone please give me the steps?
  67. math

    Help please. Determine the length of a pendulum that has a period of 4 seconds.
  68. Math (URGENT)

    Solve. 4(-1^2) = ? My calculator says its -4 I got +4 Help Please.
  69. Math

    Given f(x) and g(x)=f^-1(x). If f(1)=4 and f'(1)=-3, then find g'(4). ...No idea where to start with this. Please help? Thanks much!
  70. Math

    3/y+2 over 7/y-4 can u please show me the steps on how you got the answer. Thank You
  71. Math

    3/y+2 over 7/y-4 can u please show me the steps on how you got the answer. Thank You
  72. Math

    Please condense the expression. 1/2ln(x^2+1)-4ln1/2-1/2[ln(x-4)+lnx]
  73. Math

    Please condense the expression. 1/2ln(x^2+1)-4ln1/2-1/2[ln(x-4)+lnx]
  74. Math please plaese helpppp

    how do you solve this system algebraicly a- 2/3b =4 3/5a +b=15
  75. math-due tonight please help

    find the equation of the line 1.(-2,-8) and (-5,-6) 2.(-1,-1) and (2,2) 3. 6/7, (1,-8) 4.9, (9,1)
  76. MATH

    This is the second of three I can not figure out, help please. Divide x^2 + 4x -28 / x + 7
  77. Math

    2x-1 =13 please help me to understand how to work this one it is due tonight thank you
  78. math

    please solve: 8y - 12 < 7y - 7 { y y < ? there is supposed to be a straight line between the y and y
  79. mat115

    please help with math problem. Can you show me the work. 7(-7)-7(2-3) ____________ 2(-6+9) Thanks for your help!
  80. Math(please check)

    Simplify each expression: 1) (x+8)^2 = x^2 + 64 2) (x-2)^3 = x^3 - 8 3) (x-2y)(x+y) = x^2 - xy -2y^2 4) (x+2)(x^2+3x-2) = x^3 + 5x^2 + 4x-4 Are my answers correct?
  81. math

    What does "find the sum" mean? Please provide an example.
  82. math-algebra

    please help! given the function f(v)=8v + 2 find each of the following f(8), f(-4), f(6.7)
  83. Math/Algebra

    can someone please help me write a proof for the following: --a(-a)=a
  84. Math(Please help)

    For f(x) = 2x-3 and g(x)= 2x^2 find, a) (f + g)(x) = My answer is 2x^2 + 2x - 3. Is this correct? b) (f - g)(x) How would you do this? c) (f X g)(2) I do not know what to do since the 2 is there.
  85. Math

    Can someone please calculate this: 48(-1/2)^6 The answer is 3/2, but I get 3/4. What am I dong wrong?
  86. college math

    the Laplace transform of e^4t(cos 2t)?? please i need help. thanks
  87. math

    Help with this complex fraction please... (a+2/a^2+a-2) - (3a+1/a^2+2a-3) LCM is (a-1) (a+2) (a+3) right? then i get stuck
  88. math

    Help with this complex fraction please... (a+2/a^2+a-2) - (3a+1/a^2+2a-3) LCM is (a-1) (a+2) (a+3) right? then i get stuck
  89. math

    trying to solve linear equations problem is: x-y-2z=4; -x+2y+z=1, -x+y-3z=11. please help me.
  90. Math

    Check please Rewrite using distubutive property 3(x-2) 8(z-3) (t-4)5 -2(x-7) 3x-6 8z-24 5t-20 -2x+14
  91. Math- Precalc

    could someone please help me solve this problem... e^x - 12e^(-x) - 1
  92. math

    Hello I need help with scientific notation please 0.00000586
  93. Math

    Prime factorization of 12*x2*z2(exponents) Please show work. Thanks!
  94. 5 th math

    what is 1/8= ? Equivalent fraction THIS IS WHAT I GOT ? = 2/16 ,4/32 AND 8/40. CAN YOU PLEASE! CHECK IT FOR ME MS. SUE THANKS!!
  95. math

    order the fractions from greates to least. 1/6, 2/7, 1/5. Can anyone help and explain this to me please
  96. Math

    please show how you would divide 35.6728 by 5.246
  97. math

    if x, y, and z are positive numbers, with xy = 24, xz = 48, and yz = 72, what is x + y + x? please explain your answer too. thankyou.
  98. 6th grade math

    What is the number of 5/6s in 3? Is the answer 18/ 5 ? If not, please explain.
  99. math

    Please show me the steps on how to get the simplest form for 1 7/5ths
  100. Math/Radical Expressions

    PLEASE HELP ME. I believe I am correct. Thank you Subtract: g/t+g - g/t-g = -2g^2/(t+g)(t-g)
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