1. math/algebra

    subtract. express in simplest form 13x/30 - 4x/ 15 = factor the first denominator. Get a common denominator. Combine terms. I will be happy to critique your work. ok 13x/30 - 4x/ 15 = This is where I get lost, I know that I have to fins the LCD but when I

    asked by Diana on July 15, 2007
  2. math

    3x=13x=96 -6x-11x=-136 6.4x-2.3x=-65.6

    asked by susan on March 26, 2011
  3. math

    can someone help me like ASAP 1. 13x - 7 = 136 A. 11 B. 15******* C. 8 D. 9 Am I correct?

    asked by Melanie on November 29, 2018
  4. algebra

    Find an equation for a line that has a slope of -13 and contains (-7, 2) Answer choices 1. y = -13x - 89 2. y = 13x + 93 3. y = -13x + 19 4. y = 13x - 33

    asked by Joe on March 10, 2018
  5. Algebra

    Can you pleas Solve the quadric equation step by step 4x square =13x+2 4x^2 = 13x + 2 subtract 13x and 2 from both sides 4x^2 - 13x - 2 = 0 Now use the quadratic formula, since it does not factor.

    asked by Tony on April 12, 2007
  6. intermidate algebra

    Solve each equadratic equation by factoring. 6^2-13x-28 36-13x-28 -13x=-36+28 x=64/13 check this, correct if wrong

    asked by Angelia on May 17, 2010
  7. algebra2

    Solve each of the following quadratic equations. can some explain how to do these kinds of problems 4x^2=13x+12 i believe if i am understanding this i am supose to add to where i get =0 4x^2-13x+12=0 now what do i need to do I am thinking factoring but I

    asked by Tina on May 9, 2007
  8. algebra

    6^2-13x-28 36-13x-28 -13x=-36-28 x=8/13 could you check this problem it had to be done and turn in tonight.

    asked by Johnnie J on May 18, 2010
  9. Algebra

    Hello all - I would like to check my work on 2 problems. Solve by factoring : x^2-13x= -12 x^2-13x+12= -12 + 12 x^2-13x+12= 0 (x-1)(x-12)= 0 x = 1 , 12 Solve using the square root property: 2x^2-35=15 2x^2-35-15=0 2x^2-50=0 2(x-5)(x+5)=0 x = 5 , -5 Not

    asked by John on November 13, 2007
  10. Chemistry

    The element X has an atomic mass of 12.80 amu. It is known to have two isotopes 12X and 13X. Which of the following is true about the relative abundancies of 12X and 13X? a) both isotopes occur with the same frequency. b)12X occurs more frequently than 13X

    asked by Kayla on December 2, 2010
  11. chem

    The element X has an atomic mass of 12.80 amu. It is known to have two isotopes 12X and 13X. Which of the following is true about the relative abundancies of 12X and 13X? a) both isotopes occur with the same frequency. b)12X occurs more frequently than 13X

    asked by nicki on December 2, 2010
  12. chemistry

    The element X has an atomic mass of 12.80 amu. It is known to have two isotopes 12X and 13X. Which of the following is true about the relative abundancies of 12X and 13X? a) both isotopes occur with the same frequency. b)12X occurs more frequently than 13X

    asked by Dawn on December 2, 2010
  13. intermidate algebra

    6^2-13x=-5 6^2-13x=-5 6^2=13x-5 I have tried this problem so much what am doing wrong.

    asked by Keaton on May 17, 2010
  14. math

    Simplify (5x+3)+(8x+1) (5x)+(8x)= 13x^2 (5x)+(1)=5x (3)+(8x)=11x (3)+(1)=4 =13x^2+5x+11x+4 =13x^2+16x+4 Is this right or wrong?

    asked by Sarah on February 25, 2017
  15. Math

    Solve the following equation. 4.7 = 1.13x^2 Do i square root the 1.13x^2 first? or divide both sides by 1.13?

    asked by Jack on August 28, 2010
  16. math practice help

    add or subtract (2x^2+6x+1)+(-7x^2+2x-3) 5x^2-4x-2 -5x^2+8x-2 5x^2-8x+2 -9x^2-8x+2 (3x^2-7x-4)-(6x^2-6x+1) -3x^2-x-5 -3x^2-13x+5 9x^2-x+5 3x^2-13x-5 These are just practice problems. could someone help me figure out how to solve them and explain how they

    asked by Umacblackbelt on June 4, 2015
  17. Calculus

    Let 5x^2 - 3xy + 58 = 2y^3 Use implicit differentiation to find y' for the above equation. The first thing I did was move 2y^3 over to that everything is equal to 0. With the -3xy I used the product rule and expanded that. After solving I got.... 10x(3 * y

    asked by Nira on March 5, 2017
  18. algebra 2

    2X^4-9X^3+13X^2-X-5=0 Given that one root is 2+i, solve the equation. So far I have it set up like this: 2X^4-9X^3+13X^2-X-5/X^2-4X+5 I don't know how to get the answer, I know that I have to use long division but when I started to try it I kept getting

    asked by Jessica on January 27, 2011
  19. Math

    Express the product x^2+4x/2x^2+13x+15 x x+5/x^2-16 in simplest form. a)- 1/2x+3 b)x/(2x-16)(x+4) c)(x^2+4x)(x+5)/(2x^2+13x+15)(x^2-16) d)x/(2x-3)(x-4)

    asked by Alex on December 4, 2014
  20. Math help please ASAP

    2. Simplify the polynomial. –3f^2 + 4f – 3 + 8f^2 + 7f + 1 5f^2 – 11f + 2 11f^2 + 11f + 2 5f^2 + 11f – 2 –5f^2 + 11f – 2 3. (2x2 + 6x + 1) + (–7x2 + 2x – 3) 5x2 – 4x – 2 –5x2 + 8x – 2 5x2 – 8x + 2 –9x2 – 8x + 2 4. (3x2 – 7x

    asked by Delilah on May 7, 2013
  21. math

    can someone show me the steps for this problem because i got it incorrect in my exam. Solve each of the following quadratic equations. 4x^2=13x+12 what i had put was that x is 3/4 and x is -4 but i just got my result back and it was wrong... 4x^2 -13x _12

    asked by jas20 on March 1, 2007
  22. math

    Find the surface area of the right rectangular prism. The height is 2 in, the length is 10 in, and the width is 4 in. I think the answer is 136. I made a formula, 2(8 + 20 + 40) and I got 136. Is this right?

    asked by keisha on November 12, 2007
  23. math

    Simplify  (5x+3)+(8x+1)  (5x)+(8x)= 13x^2  (5x)+(1)=5x  (3)+(8x)=11x  (3)+(1)=4  =13x^2+5x+11x+4  =13x^2+16x+4  Is this right or wrong? Simplify (2t^2-3t)-(7t^2-5t)  = (2t^2)-(7t^2)=-5t  = (2t^2)-(-5t)= 7t  =(-3t)-(7t^2)=-10t  =(-3t)-(-5t)=2t 

    asked by Sarah on February 25, 2017
  24. Algebra

    (i just need help filling in the ? with the reason name) Given: Ray AC is the angle bisector of

    asked by Anonymous on August 8, 2017
  25. Statistics

    The following are the weekly amounts of welfare payments made by the federal government to a sample of six families: $143, $138, $132, $136, $145 and $136. What is the range? $24 $9 $13 $0

    asked by Shawn on March 28, 2014
  26. connections math

    solve each equation and put it in simplest form. x/5=-2 A)-45 B)35 C)-10 D)21 ???? 13x-7=136 A)11 ******* B)15 C)8 D)9 solve the following equation. 3x-3=15 A)4 B)5 C)6 ****** D)7 ernesto lost 14.5 pounds what equation can we used to find how much we was

    asked by dude on December 19, 2016
  27. Algebra

    A student keeps track of his target heart rate when he is exercising. The range for the number of heart beats per minute R for someone his age is /R-136/ less than or equal to 20. Determine the solution to the inequality. I believe the answer is:

    asked by Blake on October 24, 2015
  28. Math

    I know that I posted this already but my question has not been answered.. Solve in the exact form. Original problem: (sqrt of 4x+1)+(sqrt of x+1)=2 4x+1 + 2√(4x^2+13x+3) + x+3 = 4 Where does the 2 come from according to the equation above?? This 2:----->

    asked by Anonymous on July 12, 2014
  29. calculus(equating coefficients)

    Can somebody explain to me why equating coefficients work? Example: 8x^3+13x = Ax^3 + 2Ax + Bx^2 + 2B + Cx + D expanded into: 8x^3 + 13x = Ax^3 + Bx^2 + (2A+C)x + 2(B+D) where A,B,C,D are constants. Why does 8 = A; 0 = B; 13 = 2A + C; etc. I know they have

    asked by Jay on June 7, 2011
  30. Math last question.

    (3x^2 - 7x -4) - (6x^2 -6x +1) It's a polynomial I think the answer is D or C, but I'm not sure which one. Help please A. 3x^2 - 13x - 5 B. 9x^2 - x + 5 C. -3x^2 -13x + 5 D. -3x^2 -x -5

    asked by anonymous on May 11, 2015
  31. Algebra

    Solve the equation using the Quadratic Formula 5xsquared+13x-6=0 i think it is -2/5,3 5x^2 + 13x -6 (5x -2)(x +3)=0 You are correct. From Bob Pursley's work you can see that his solution gives +2/5 and not -2/5. The +2/5 is correct. drbob is right on that.

    asked by Libby on December 14, 2006
  32. math ~dont know all but check some~ pls help!!!

    1. Draw a model to represent the polynomial x2 + 2x + 4. (1 point) 1 big square, 1 tall rectangle, 4 little sqaures 1 big square, 2 tall rectangles, 4 little sqaures in the shape of an "L" 2 big sqaures, 4 little squares none of these 2. Simplify the

    asked by TTR+S<3 on May 21, 2014
  33. polynomials naman

    If remainder on division x^3-kx^2+13x-21 by 2x-1 is -21 ,find quotient and k.Hence find zeroes of cubic polynomial x^3 -kx^2+13x-21.

    asked by pankaj khanna on July 2, 2015
  34. algebra i

    two rubber balls are dropped from two different heights 136 ft and 287 ft. Find the function that describes them. I believe it is H(t) = -16t^2 + 136 and H(t) = -16 ^2 + 287. There are no answers in the book . I assumed velocity is 0. Am I correct? Thanks,

    asked by Sandy on August 8, 2015
  35. Math

    Express the product, x^2 + 4x divided by 2x^2+13x+15 multiplied by x+5 divided by x^2 - 16 ? a)-1/2x+3 b)x/(2x-16)(x+4) c)(x^2+4x)(x+5) / (2x^2+13x+15)(x^2-16) d)x / (2x+3)(x-4)

    asked by Alex on December 9, 2014
  36. Math

    A rectangles length and width are in a ratio of 17:2. The area is 136 square yards. What are the length and width. Have no idea how to even start to work this problem other than 17L X 2w= 136

    asked by Mak on December 15, 2016
  37. Math

    1. (6.0 x 10^5) x (3.0 x 10^4) = a. 18 x 10^20 b. 18 x 10^9 c. 1.8 x 10^20 d. 1.8 x 10^9 2. (5 x 10^-2) ÷ (2 x 10^3) = a. 2.5 x 10^-5 b. 2.5 x 10^-1 c. 25 x 10^1 d. 25 x 10^2 3. (2.56 x 10^6) x (3.56 x 10^2) = a. 9.1136 x 10^12 b. 91.136 x 10^8 c. 9.1136

    asked by Chase on September 13, 2012
  38. chem

    sodium chloride (relative molecular mass = 58.5) had a solubility of 36.0 g per 100g of water. the density of the solution is 1.13 g/ml. which of the following calculations would give te solubility in moles per liter? A) 36.0 x 10/58.5 b) 36.0 x 10 x

    asked by Ollie on April 7, 2014
  39. Math check my answers please

    1. x/5=-2 A. -45 B. 35 C. -10 D. 21 2. 13x - 7= 136 A. 11 B. 15 C. 8 D. 9 Solve the following equation 3. 3x - 3=15 A. 4 B. 5 C. 6 D. 7 4. Ernesto loses 14.5 pounds in 7 months. Now he weighs 156.5 pounds. Which equation can be used to find how much he

    asked by Gurl nerd on December 6, 2017
  40. Math

    3. (2.56 x 10^6) x (3.56 x 10^2) = a. 9.1136 x 10^12 b. 91.136 x 10^8 c. 9.1136 x 10^8 d. 91.136 x 10^12 4. In a recent year, the population of California was about 2.52 x 10^7 people. Its land area is about 4.05 x 10^5 km2. What was the average number of

    asked by Nick on October 22, 2016
  41. bookkeeping

    what is the total interest for $2596.40 with a interest rate of %9 percent.with a tiime of 7months 97.37 136.26 136.31 233.68 my answer is 233.68

    asked by susue on April 6, 2012
  42. Math

    My work on simplifying this function: g(x)=(-3x^2-13x-13) g(x)=-3x^2-13x-13 (13x-13=x) g(x)=-3x^2-x Can someone help with the simplifying the function if I have got it wrong and also can someone tell me of it's equivalent to this

    asked by Alex on January 10, 2015
  43. pre cal

    let f(x)=13x^3-13x find all x such that f(x)=0

    asked by Raven on August 30, 2018
  44. This needs tobe turned in in 10min AT MOST URGENT!

    1. x over 5= –2 (1 point) –45 35 –10 21 2. 13x – 7 = 136 (1 point) 11 15 8 9 3. Solve the following equation: 3x – 3 = 15 (1 point) 4 5 6 7 4. Ernesto loses 14.5 pounds in 7 months. Now he weighs 156.5 pounds. Which equation can be used to find

    asked by Gabby on December 21, 2012
  45. math

    The area of a square plot of land is 1156m2. The plot is to be fenced with three strands of wire. What is the length of the wire that is needed? Area = S2 √1156 = S S=34 P = 4s = 136 = 136(3) = 408

    asked by kudu on March 17, 2015
  46. Calculus check and help

    Let f and g be the functions given by f(x)=1+sin(2x) and g(x)=e^(x/2). Let R be the shaded region in the first quadrant enclosed by the graphs of f and g. A. Find the the area of R. B. Find the value of z so that x=z cuts the solid R into two parts with

    asked by Anonymous on April 20, 2015
  47. algebra

    Megan factored the expression 12x^2+13x-14 as (3x+2)(4x-7). But when Jacob applied the foil principle and multiplied out(3x+2)(4x-7), he got 12x^2-13x-14; thus, Megan's solution does not appear to check. Why is that? Please help Megan to understand this

    asked by sheba on July 26, 2011
  48. math

    Josh has 42 more baseball cards than hockey cards. Josh has 136 hockey cards. Which number sentence can be used to find how many baseball cards Josh has? A. 136-42=____ B. 136+42=____

    asked by Amy on April 23, 2012
  49. math

    Josh has 42 more baseball cards than hockey cards. Josh has 136 hockey cards. Which number sentence can be used to find how many baseball cards Josh has? A. 136-42=____ B. 136+42=____

    asked by Amy on April 23, 2012
  50. Algebra 2

    1.) The cost in C dollars of manufacturing x bicycles at Holliday's Production Plant is given by the function C(x) = 2x2 - 800x + 92,000. Find the minimum cost. 2.) The vertex of y = -3x2- 6x - 9 lies in which quadrant? 3.) Given f(x) = 1/3*(x - 4 )2 + 7.

    asked by Becka on February 28, 2014
  51. calculus

    "superman is in level flight 6 miles above ground. his flight plan takes him directly over whs high school. how fast is he flying when the distance between him and the whs high school is exactly 10 miles and the rate is increasing 40mph?" i keep getting: r

    asked by eric on January 26, 2014
  52. Maths

    is this correct... (3x^2+4x-3)^2-(3x^2-x+2)^2 then is it this (9x^4+24x^3-2x^2-24x+9)-(9x^4-6x^3+13x^2-4x+4) or this 9x^4+24x^3-2x^2-24x+9-9x^4-6x^3+13x^2-4x+4 should it have brakets or not that's my only problem thanks

    asked by Kane on October 4, 2010
  53. Math

    I don't think I am understanding this question. Question: A zoo started with 16 cranes and panned to hatch 20 chicks. A few birds were kept for breeding and the rest realeased into the wild. At the end of last year, a total of 136 cranes had spent some

    asked by Lena on June 7, 2009
  54. Algebra 1b!

    1. Find the excluded value of x for the polynomomial expression 4x/6 a. 6 b. -6 c. 1/6 d. -1/6 2. Simplifly 3-2x/7 + 4x+5/7 a. 2x+8/14 b. 2x+8/7

    asked by Selena on December 9, 2013
  55. math

    A piece of wire of length 240 cm is bent into the shape of trapezium where the eqtn is = 13x+13x+y+y+24x. Find the value of x and y for which A is maximum, hence find the maximum area. a. express y in term of x b. show that the area A cm^2 enclosed by the

    asked by Yuni on July 30, 2011
  56. Algebra

    Please check my answers. Thanks! Solve the polynomial equation. In order to obtain the first root, use synthetic division to test the possible rational roots. 5.2x^3-13x^2+22x-8=0 -My answer:{1/2,2,4} 6.x^3-8x^2-x+8=0 -My answer: {1,-1,8} Find the rational

    asked by Jes on October 10, 2007
  57. Algebra

    (x)/(x-3)-4-(2x-5)/(x+2) I posted something before this, so now this is how far I got. The answer I know is -(5x^2-17x-9)/(x-3)(x+2) first I get (x)(x+2)/(x-3)(x+2)- (4)(x-3)(x+2)/(x-3)(x+2)-(2x-5)(x-3)/(x-3)(x+2) Then I get x^2+2x-4x^2-4x-24-2x^2-11x+15

    asked by Sara on July 20, 2007
  58. Algebra

    (x)/(x-3)-4-(2x-5)/(x+2) I posted something before this, so now this is how far I got. The answer I know is -(5x^2-17x-9)/(x-3)(x+2) first I get (x)(x+2)/(x-3)(x+2)- (4)(x-3)(x+2)/(x-3)(x+2)-(2x-5)(x-3)/(x-3)(x+2) Then I get x^2+2x-4x^2-4x-24-2x^2-11x+15

    asked by Sara on July 20, 2007
  59. Algebra

    Can someone verify if my answers are correct? Solve. 1/x+6-1/x-6 My answer is: -12/x^2-36 Solve. 1/x+5+2=5/x+5 My answer is: -3 Subtract. Express your answer in simplest form. 13x/30-4x/15 My answer is: x/6 Can someone verify if my answers are correct?

    asked by Need Help on July 12, 2007
  60. *** Discrete Math ***

    I would like to know if my answers are correct. I also need help solving some exercises the right way. (a) Explain why [13] is invertible in Z50. Ans: it's invertible because there's some [t]E Z50 such that [13][t]=1 (b) Use the usual algorithm to find

    asked by Jane on November 23, 2007
  61. Algebra

    What percent of 25 is 10? A)10=x•25;40% ** B)10=x•25;250% C)25=x•10;4% D)25=x•10;250% The sales tax is 6.9% A.Find the tax paid for a pair of boots with a list price of $128. B.What is the total cost of the pair of boots. 1)$8.83; $128.88 2)$8.83;

    asked by ALGEBRA HELP on November 12, 2015
  62. Math help please check

    Add or Subtract for #3-4 3. (2x2 + 6x + 1) + (–7x2 + 2x – 3) 5x2 – 4x – 2 –5x2 + 8x – 2 5x2 – 8x + 2 –9x2 – 8x + 2 4. (3x2 – 7x – 4) – (6x2 – 6x + 1) –3x2 – x –5 –3x2 –13x + 5 9x2 – x + 5 3x2 – 13x – 5 My answers:

    asked by Delilah on May 7, 2013
  63. Trigonometry

    Stuck :( 1. Simplify (5-√-36)(2+√-1) A. 16 − 7i B. 16 + 7i C. 4 + 7i 2. Choose the point that lies on the curve r = 2 – 3 sin θ. A. (-5, 3π/3) B. (-2, π) C. (1, π/2) 3. Which of the following is not an approximate solution of x5 – 1 = 0? A.

    asked by Rodrick on December 9, 2012
  64. 7th grade math Ms. Sue please

    Find the percent of markup. Round to the nearest whole percent. 6. Store's Cost: $136.50 Selling Price: $184.70 (1 point) 48% 26% 14% 35%6. Store's Cost: $136.50 Selling Price: $184.70 (1 point) 48% 26% 14% 35% So you previously said 48% wasn't

    asked by Destiny on November 29, 2012
  65. statistics

    Question: In 2001 the stock market took some big swings up and down. One thousand investors were asked how often they tracked their investments. The table below shows their responses. What is the probability that an investor tracks the portfolio monthly?

    asked by Looking for someone to check my answer on March 16, 2010
  66. Physics Energy & Acceleration

    A light spring with force constant 3.45 N/m is compressed by 7.92 cm as it is held between a 0.241 kg block on the left and a 0.482 kg block on the right, both resting on a horizontal surface. The spring exerts a force on each block, tending to push them

    asked by mR. Ba3BOOS on November 1, 2011
  67. algebra

    13x-24

    asked by Anonymous on August 26, 2011
  68. college

    (2x^(2)+7x-15)/(2x^(2)+13x+15)

    asked by Math on September 1, 2010
  69. algebra

    13x+2>3((2x+1)-x+8

    asked by lynn on August 1, 2014
  70. mathmetics

    x2-13x+30

    asked by roj on May 24, 2008
  71. math

    3x=10+13x

    asked by Sophia on August 21, 2012
  72. statistics

    y=8+13x

    asked by william on July 25, 2016
  73. Algebra 2

    2x^2-13x-7=0

    asked by Jessica on June 1, 2008
  74. simultaneous equation

    13x+6y=41

    asked by Precious on August 23, 2011
  75. geometry 3

    x^2-13x-30=0 A. -3,-10 B. 3,10 C. -15,2 D. 15,-2 x^+7x-18=0 A. -9,2 B. -6,3 C. -3,6 D. -2,9

    asked by monique n on April 15, 2010
  76. math

    Minutes 126.53 127.27 130 130.35 130.4 130.58 130.87 131.18 131.98 132.55 133.28 133.42 133.43 133.55 133.65 134 134.37 134.62 134.73 135 135.95 136.12 136.17 136.23 136.28 137.7 137.83 137.93 138.18 138.25 138.43 138.67 139.13 139.72 140.25 140.38 140.4

    asked by Anonymous on February 20, 2016
  77. statistics

    Minutes 126.53 127.27 130 130.35 130.4 130.58 130.87 131.18 131.98 132.55 133.28 133.42 133.43 133.55 133.65 134 134.37 134.62 134.73 135 135.95 136.12 136.17 136.23 136.28 137.7 137.83 137.93 138.18 138.25 138.43 138.67 139.13 139.72 140.25 140.38 140.4

    asked by Anonymous on February 20, 2016
  78. john

    Minutes 126.53 127.27 130 130.35 130.4 130.58 130.87 131.18 131.98 132.55 133.28 133.42 133.43 133.55 133.65 134 134.37 134.62 134.73 135 135.95 136.12 136.17 136.23 136.28 137.7 137.83 137.93 138.18 138.25 138.43 138.67 139.13 139.72 140.25 140.38 140.4

    asked by Anonymous on February 21, 2016
  79. statistics

    Minutes 126.53 127.27 130 130.35 130.4 130.58 130.87 131.18 131.98 132.55 133.28 133.42 133.43 133.55 133.65 134 134.37 134.62 134.73 135 135.95 136.12 136.17 136.23 136.28 137.7 137.83 137.93 138.18 138.25 138.43 138.67 139.13 139.72 140.25 140.38 140.4

    asked by vicke on February 21, 2016
  80. statistics

    Minutes 126.53 127.27 130 130.35 130.4 130.58 130.87 131.18 131.98 132.55 133.28 133.42 133.43 133.55 133.65 134 134.37 134.62 134.73 135 135.95 136.12 136.17 136.23 136.28 137.7 137.83 137.93 138.18 138.25 138.43 138.67 139.13 139.72 140.25 140.38 140.4

    asked by Anonymous on February 20, 2016
  81. statistics

    Minutes 126.53 127.27 130 130.35 130.4 130.58 130.87 131.18 131.98 132.55 133.28 133.42 133.43 133.55 133.65 134 134.37 134.62 134.73 135 135.95 136.12 136.17 136.23 136.28 137.7 137.83 137.93 138.18 138.25 138.43 138.67 139.13 139.72 140.25 140.38 140.4

    asked by hana on February 21, 2016
  82. Algebra Systems with Substitution

    I have a similar problem to

    asked by Victim of Stupidity on January 26, 2009
  83. algebra

    18x-6=13x+9

    asked by Anonymous on November 27, 2013
  84. Quantitative Aptitude

    6y=3=3 2y=2=2 9x=2=2 7x=2=2 5x= 12y= 13x= 6y=

    asked by Riliwan on November 14, 2017
  85. math's

    Solve for this 5x^3-13x^2+4x-9 ---------------- 7x^2+2x- 11

    asked by rima on May 12, 2010
  86. math

    7x+13x=140

    asked by Sumayyah on December 19, 2008
  87. calculus

    Find f'(a) for f(x)=13x/3x+1

    asked by kayla on February 19, 2010
  88. Math

    x^4 + 10x + 18 - x^4 - 3x + 2 Is this 13x + 16?

    asked by Anonymous on March 5, 2014
  89. math

    13x + 15= 11x - 25

    asked by Sam on August 25, 2011
  90. algebra 2

    1) 2a+c=-10 b-c=15 a-2b+c=-5 2) x+y+z=3 13x+2x=2 -x-5z=-5 3)x-y+3z=3 -2x+2y-6z=6 y-5z=-3 4)3x-2y+z=1 -x+y-z=2 5x+2y+10z=-39 5)3x-2y+z=1 -x-y-z=-3 3x-2y+3z=-12

    asked by Ludjmy on November 21, 2011
  91. algebra

    3bx+13x=9

    asked by what are steps with the answer on March 24, 2011
  92. algebra

    how would u factor 2x^2 +13x-7 =27? please help

    asked by jessica on March 21, 2012
  93. algebra

    factor: 6x^2-13x+6

    asked by tam on February 12, 2011
  94. Math

    Differentiate y=13x^2-5x+8

    asked by Carl on July 25, 2018
  95. Pre-Calculus 12

    2x^3 - 13x^2 + 32x - 13 = 0

    asked by Eayan on March 7, 2017
  96. math

    what are the roots for x^3-13x-12?

    asked by Tameka on August 19, 2015
  97. algebra

    Factor each of the following polynomials. 1. x^2+x-6 2. 6x^2+13x-5 Thanx!

    asked by Janet on October 15, 2014
  98. Math - Quadratic Factor

    can someone explain how to do this problem, please. 6x^2 + 13x +2 + 0

    asked by jake on September 24, 2012
  99. math

    Which of the following would be simplified the most if it were multiplied by 3/13. a. 13x+39 b. x+39/13 c. x+9/3 d. 3x+9

    asked by Izzy on February 16, 2012
  100. advanced algebra 2

    Factor the expressions: x^2 - 13x + 30

    asked by kerry on August 10, 2012

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