1. math

    solve the ff indical equation: 2^(2x+8)-32^(2x+1)=0 2.4^x=0.59

    asked by benhur on February 10, 2019
  2. ALGEBRA 1!PLZ HELP!

    Use the Substitution method to solve the system of equations. y - 2x = -5 3y - x = 5 Solve the first equation for y. y = 2x-5 Substitute that for y in the second equation and solve for x. Then use the value of x to substitute back into the first equation

    asked by SANDRO! on November 6, 2006
  3. Algebra

    I have some problems that I am having trouble with and I have some that need checking please. Thanks! Solve the equation. 4. (x+7/4)=2(x-1/6) Find all the value(s) of x that make thedenominator(s) zero. Then solve the equation. 6. (x-8/2x) +5= (x+6/x)

    asked by Soly on August 21, 2007
  4. MATH

    I NEED TO SOLVE FOR Y AND X im getting rele confused on this. ok here is the prob. x+y=5 x-2y=-4 equation 1 x+y=5 equation 2 x-2y=-4 Multiply equation 1 by -1. Add equation 1 to equation 2. The x term cancels. Solve for y. THEN, put the value of y into

    asked by Tony on December 17, 2006
  5. Math

    Solve the system by addition or substitution. 3x – 4y = 8 6x – 2y = 10 Please get me on the correct track for 3x -4y =8 x=4, y=1 for 6x - 2y =10 x= 2, y= 1 Solve one equation for x. 3x = 4y + 8 x = (4y + 8)/3 Insert that value for x in the other

    asked by Amanda on May 20, 2007
  6. Algebra 1

    What is an equation of a line perpendicular to the line with equation y = 1 - 3x a.y=-3x + 5 b. y=3x + 5 c.y=-1/3x + 5 d. y=1/3x + 5 To solve the linear system below, which substitution of unkowns is proper ? x + 4y= -6 5x - 3y = -16 a. substitute -4y-6

    asked by Ley on April 22, 2013
  7. Math

    1. Solve the equation. -6g = 42 a. g = 7 b. g = -7 c. g = 252 d. g = -252 2. Solve the equation. x/8 = 16 a. x = 128 b. x = 24 c. x = 8 d. x = 2 3. Solve the equation. 12m = 14.4 a. m = 120 b. m = 12 c. m = 1.2 d. m = 0.12 4. Solve the equation. x/3 = -15

    asked by Malasia on September 1, 2015
  8. math

    determine the equation of the line in y=mx+b form that passes through 1. (-8,1) & (-9, 2) 2. (3,7) & (-5, 9) 3, (-4,0) & (4,6) Part B ) For each equation Rewreite the y=mx+b equation in general form Ax+by+c=0 where A is positive b and C are integers In

    asked by thomas on February 8, 2007
  9. Substitution Method-Plz help

    Use the Substitution method to solve the system of equations. x + y = -4 x - y = 2 solve for x in the second equation. x= y+2 Put that in for x in the first equation: x+y=-4 (y+2) + y = -4 solve for y. Then, x= y+2 i don't get it.How did you get that?What

    asked by Svetlana on October 17, 2006
  10. math

    I need help with these three problems. They are on a Study Guide and I need some refreshing up of how to do them. 17. Solve the equation using the zero product property... -8n(5n+3) 19. Solve the equation by factoring 5z^2-2z-3=0 20. Solve the equation by

    asked by Amy on May 26, 2009
  11. Math

    I need help with these three problems. They are on a Study Guide and I need some refreshing up of how to do them. 17. Solve the equation using the zero product property... -8n(5n+3) 19. Solve the equation by factoring 5z^2-2z-3=0 20. Solve the equation by

    asked by Amy on May 26, 2009
  12. Math

    I need help with these three problems. They are on a Study Guide and I need some refreshing up of how to do them. 17. Solve the equation using the zero product property... -8n(5n+3) 19. Solve the equation by factoring 5z^2-2z-3=0 20. Solve the equation by

    asked by Amy on May 27, 2009
  13. DRWLS CAN YOU ANSWER

    How do i solve inequalitites with three variables. I still can't figure it outplease help. x+y=1 y-z=-3 2x+3y+z=1 THE ANSWERS ARE3,-2,1 HOW DID THEY GET THAT ANSWER. This can be solved a number of ways. 1) subsitition 2) determinants 3) matricies.

    asked by Jasmine202005 on October 22, 2006
  14. Algebra

    To solve the system of equations, which expression could be substituted for x into the first equation? 3x-5y=14 x+4y=10 a)10-4y b)4y+10 c)(1/4)x+(5/2) d)(-1/4)x+(5/2) I have another problem just like this one so if you could explain how to solve this one I

    asked by maddie on July 27, 2007
  15. Algebra

    There are 4 problems that I don't understand how to solve so, please help me. A numerical explanation with words explanation would be nice. Thank you tutors. Rewrite each equation so it is in the form ax + b = c or x + d/e = f, where x is a variable. Then

    asked by anon on December 9, 2015
  16. Factoring

    What does 3x^3-3x+2=0 come out to? How would I solve this? Is the x cubed supposed to be x squared? You can compare the equation with the identity: (a+b)^3 = a^3 + 3 a^2 b + 3 a b^2 + b^3 which you can rewrite as: (a + b)^3 = 3 ab (a + b) + a^3 + b^3 (1)

    asked by Ace on May 30, 2007
  17. Algebra

    I have a few questions that I need help with. Solve the radical equation, and check all proposed solutions. 5. x- square root 3x-2=4 I don't understand this problem. Solve and check the equation. 10. (x^2+14x+49)^3/4-20=7 would I have to multiply each

    asked by Brit on August 18, 2007
  18. math

    Can someone help me figure this out. The difference of two numbers is 80. The second is 8 less than 5 times the first. What are the two numbers? first write an equation 5x-8=y and then solve it Tiff gave you part of the solution. 5x-8=y However, there is

    asked by jessica on May 7, 2007
  19. Math

    Using the intersection method, I need to solve the following equation: 5x-3.3=x-2.1 Can you point me on the right path? you have to get x's on one side, and the numbers on the other. then solve for x. Kira, Thank so much for your help, but how do you graph

    asked by Olivia on December 20, 2006
  20. math

    just an algebra question. how would you solve: (3x^2 +5)(3x^2 +5) ^ means power :] Since you have not given us an equation, it is impossible to "solve" your problam. Please repost with the complete equation, so we can help you. I hope this helps a little.

    asked by Kelly on September 5, 2006
  21. calc

    What are the intercepting points of y^2=-4x and x^2=y I set both equations equal to 0, but only get x=0 and there is another intercepting point. please help! You can solve for one of the equation and substitute it into the other equation. In this case you

    asked by nick on December 7, 2006
  22. Math

    The graph of the equation y=4-x consists of all the points in the coordinate plane that satisfy the equation. List 5 points that satisfy y= 4-x. Also, what do you think is the minimum number of points you need to plot in order to draw the graph of y=4-x.

    asked by victoria on November 21, 2006
  23. pre algebra

    1. Solve the equation. –9v – 5 = –95 (1 point) 17 11 10 –10 2. Solve the equation. x over four – 5 = –8 (1 point) –27 –12 –7 12 3. Solve the equation. p over five + 6 = 10 (1 point) 44 30 20 –20 4. Solve the equation. –2(m – 30) =

    asked by help please on September 27, 2017
  24. Math!

    6a + 5b = 10 , 6a - b = -110 a=________ b=_________ 6a + 5b = 10 6a - b = -110 =================== Subtact equation 2 from equation which will eliminate a. Solve the resulting equation for b, then substitute into either original equation and solve for a.

    asked by kare on August 24, 2006
  25. bobpursly,.math

    Ok, assume it equals zero. 2x + 3y -6=0 subtract 3y from each side. add six to each side. divide both sides by two. its how its in the book i'm suppost to solve for x. but how? How do I solve for the following: Directions solve each literal equation for

    asked by bobpursley on December 19, 2006
  26. Math check please

    1. Solve the system of equations y=2x^2-3 y=3x-1 a)no solution b)(-1/2,5),(2,-5/2) c)(-1/2,-5/2),(2,5)**** d)(1/2,5/2),(2,5) 2. How many real number solutions are there to the equation 0=-3x^2+x-4? a)0 ***** b)1 c)2 d)3 3.solve the equation by completing

    asked by Kendra on March 19, 2015
  27. math

    solve the following trig equation : 7 = 8sin(1/2)x. I can solve this using the half-angle indentity. But i need to solve this using period and phase change equation. how do i do this?

    asked by shan on April 16, 2008
  28. Algebra 1--Please, help me!

    Solve the following equation by graphing the related function. 1. 4x^2 + 8x = 32 A: ? Use the Zero Product Property to solve the following equation. 2. x(x + 3) = 32 A: ? 3. Solve 3x^2 + 5 = 21. Round to the nearest hundredth. A: x = 5.33 x = 5.0 or 5?

    asked by Victoria on May 12, 2014
  29. Math- Algebra

    hi wat method would i use and how would i solve this system of equations x^2+xy=3 3x^2+2xy-2y^2=7 In your first equation, solve for y... you should have xy= -x^2+3... divide this by x... so y = x^2+3/x plug what you solved for y into your second equation

    asked by Anonymous on May 21, 2007
  30. Maths

    solve the following pair of simultaneous equation: (x/a)+(y/b)=1 (x/b)+(y/a)=1 can someone help please?i have no idea how to solve it =( x/(ab) + y/b^2 = 1/b x/(ab) + y/a^2 = 1/a Subtract one from the other y(1/b^2 - 1/a^2) = 1/b - 1/a y(1/b + 1/a)(1/b -

    asked by Emma on July 11, 2007
  31. math

    (1) Is the equation true false or open? 9p + 8 = 10p + 7 A. open;there is a variable ***** B. true;the expressions are all the same for all values of the variiables C. false;the expressions are never the same (12) Which equation is an identity? A. 11 - (2v

    asked by kelseypooh on October 10, 2018
  32. algebra

    (1) Is the equation true false or open? 9p + 8 = 10p + 7 A. open;there is a variable ***** B. true;the expressions are all the same for all values of the variiables C. false;the expressions are never the same (12) Which equation is an identity? A. 11 - (2v

    asked by kelseypooh on October 10, 2018
  33. maths

    1x+2y=5 3x+7y=18 x= y= Multiply equation 1 by -3, add to equation 2 (which eliminates x), then solve for y. Use that value in the other equation to solve for x. Post your work if you get stuck AND explain in detail what you don't understand.

    asked by Anonymous on February 6, 2007
  34. Algebra

    how to solve this: what is the largest rectangular area that can be enclosed with 400 ft of fencing? What are the dimensions of the rectangle? Could someone write the equation. I know how to solve it without an equation but I want to know the equation.

    asked by Amy on November 7, 2010
  35. algebra

    Solve the equation using the zero-product property. -9n(5n-5) a. -1/9, 1 b. 0,1***** c. -1/9,-1 d. 0,-1 Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2-6=x a. x=2,3 b. x=-2,3 ***** c. x=2,-3 d. x=-2,-3 How

    asked by frank on May 14, 2018
  36. MATHS

    i need a lil help with this If x=2 is a root of the equation 6x^3 - px^2 - 14x + 24=0, find p,hence, solve the equation i got p to be 11 how do i solve the equation? You did it. http://www.jiskha.com/display.cgi?id=1165710846.1165713920

    asked by KIM on December 9, 2006
  37. Pre-Calculus

    Solve the equation 2x + 5y - 3z = -1. Write the general solution as a matrix equation. [x] [ ] [1] [y]= [ ] X [s] [z] [ ] [t] I'm supposed to fill in that blank in the middle, but I don't understand how to solve this if I'm only given one equation. please

    asked by Ann on December 6, 2013
  38. math (this correct)

    What is the difference between an equation and an expression? Include an example of each. Can you solve for a variable in an expression? Explain. Can you solve for a variable in an equation? Explain. Write a mathematical phrase or sentence for your

    asked by scooby9132002 on May 5, 2009
  39. confused calc

    dy/dx=2y^2 and if y=-1 when x=1, then when x=2, y=? (you already posted this, but i still don't get it) dy/dx = 2y^2 Integrating...y=2/3 y^3 + C put 1,-1 into the equation, and solve for C c=-1/3 so the equation is y=(2y^3)/3-1/3 then i have to find what y

    asked by david on December 12, 2006
  40. PLEEEEEAAAASE HELP WITH DIFFERENTIAL EQ PROBLEMS!!

    1) What are the equilibrium solutions to the differential equation and determine if it is stable or unstable with the initial condition y(-4)=1: 0.1(y+2)(4-y) 2) Use Euler's method with step size=0.5 and initial condition y(0)=3 to solve the equation

    asked by Karen on December 8, 2014
  41. math

    can anyone help with this? suppose you bought some 32 cents stamps and some 20 cents stamps. you spent $3.92 for 16 stamps. how many of each stamp did you buy? i got the equation--.32x + .20y = $3.92 but don't know how to solve for x and y Step 1: Solve

    asked by norman on February 1, 2007
  42. algebra

    how would i find an equation of a line that goes through points(1,6) and (3,10)?? thanks A straight line is y=mx+b Substitute the points to make two equations. 6=m(1)+b 10=m(3)+b Two equations; two unknowns, m and b. Solve for m and b, then plug back into

    asked by jasmine on December 22, 2006
  43. math, algebra

    How do I solve for the following: Directions solve each literal equation for the individual variable. 2x + 3y -6 (for x ) Linear equation It has to equal something. What you have is a statement, not an equation.

    asked by jasmine20 on December 19, 2006
  44. 8th grade math HELP URGENT!!!

    Solve Each equation by first dividing each side of the equation by the number outside the parentheses. When would you recommend using this method to solve an equation? Explain. A. 9(x-4)=72. B. 8(x+5)=60

    asked by #HELP!!! on September 12, 2013
  45. math

    x+y= 30 4x+2y=74 y+ What does the y+ signify? Are you supposed to solve for y? Try doubling the first equation, giving you 2x + 2y = 60 and then subracting the second equation from that. -2x = -14 Solve that easily for x, and then substitute that x in any

    asked by JOHN on March 7, 2007
  46. subsitution method

    Can some one show me how to use the Substitution method to solve the system of these equations. x + y = -4 x - y = 2 x + y = 10 y = x + 8 on the first set. Solve for either x or y in either equation, then put that value into the other equation. Example: x

    asked by mike on July 1, 2007
  47. Algebra

    My instructions are to solve the problem by showing the steps and identify as a conditional equation, an inconsistent equation or an identity. 0.06q + 14 = 0.3q - 5.2 You can convert that to 0.24 x = 19.2 and solve it for x. The original equation is

    asked by Bianca on June 29, 2007
  48. math

    First try to solve the equation by factoring. If you are unable to solve the equation by factoring, solve the equation by using the quadratic formula. For equations with solutions that are irrational numbers, give exact solutions and approximate solutions

    asked by anonymous on September 27, 2018
  49. Math

    What is the difference between an equation and an expression? Include an example of each. Can you solve for a variable in an expression? Explain. Can you solve for a variable in an equation? Explain. Write a mathematical phrase or sentence for your

    asked by scooby9132002 on May 5, 2009
  50. Math

    1. solve the equation. -9v - 5 = -95 A. 17 B. 11 C. 10 ** D. -10 2. Solve the equation. X/4 - 5 = -8 A. -27 B. -12 ** C. -7 D. 12 3. Solve the equation. d/3 + 10 = 7 A. 51 B. 20 ** C. 0 D. -9 4. Solve the equation. 2(2 - 2k) = -3k A. -4 B. 4 C. 6 D. 0 **

    asked by Anonymous on December 18, 2018
  51. Math

    Factor the polynomial P(x)=x^3-2x^2-13x-10. Then solve the equation P(x)=0. This is what I got: P(x)=(x+1)(x^2-3x-10) P(x)=(x+1)(x-5)(x+2) When it says solve the equation P(x)=0 does it means solve for x? If so then x=-1 or 5 or -2 Correct??? please and

    asked by Anonymous on April 3, 2012
  52. How do I do this.?(Math.)

    Use the Substitution method to solve the system of equations. y - 2x = -5 3y - x = 5 Solve one of the equations for x or y. Let's solve the first one for y: y - 2x = -5 y = 2x - 5 Now let's substitute 2x - 5 for y in the second equation to solve for x:

    asked by Margie on February 5, 2007
  53. Math

    1) -5g-6 for g = -2 2) Write an algebraic expression for the sum of 3 Coins and c Coins 3) What Value of x is a solution to the equation? x-2 = 16 4) use mental math to solve the equation. z/-12 = -5 5) estimate the solution of the equation x-8.1 = 5.3 to

    asked by Jack on October 25, 2017
  54. MATH PLEASE HELP

    1) -5g-6 for g = -2 2) Write an algebraic expression for the sum of 3 Coins and c Coins 3) What Value of x is a solution to the equation? x-2 = 16 4) use mental math to solve the equation. z/-12 = -5 5) estimate the solution of the equation x-8.1 = 5.3 to

    asked by Jack on October 25, 2017
  55. math

    1) -5g-6 for g = -2 2) Write an algebraic expression for the sum of 3 Coins and c Coins 3) What Value of x is a solution to the equation? x-2 = 16 4) use mental math to solve the equation. z/-12 = -5 5) estimate the solution of the equation x-8.1 = 5.3 to

    asked by gurl please help mee!!! on November 1, 2018
  56. math

    (1)Is the Equation true, false, or open? 4y + 8 = 6y + 3 A. True; the expressionas are the same for all values of variables B. False; the expressions are never the same ****** C. Open; there is a varible (12)Which equation is an Identity A. 7 - (9x + 3) =

    asked by kelseypooh on October 9, 2018
  57. algebra the slope- intercept form

    Find the slope and y-intercept for the graph of each equation: y=x-7 how would you solve this type of equation? i know that with an equation like: y=2x+4 that it would be m=2/1 and b=4. but how would you solve the first one.

    asked by Alie Mae on November 15, 2011
  58. Trig

    h t t p : / / m a t h c e n t r a l . u r e g i n a . c a / Q Q / d a t a b a s e / Q Q . 0 9 . 9 9 / a n g e l a 2 . 2 . g i f give that picture how do I solve for (h) I know that you you From the diagram tan(3.5) = h/(13 + x) and tan(9) = h/x. Solve the

    asked by Trig on August 27, 2009
  59. Trigonometry

    Hi, I really need help in understanding how to solve trig equations. How do you solve this equation? Solve the equation on the interval 0 < or equal to x < or equal to 2pi. sinx = (square root of 3)/2 I appreciate your help. Thank you!

    asked by Leah on March 17, 2013
  60. algebra

    solve each literal equation for the indicated variable linear equation for x 2x+3y=6 can some one give me a example and show me how the steps go to solve this problem please Subtract 3y from both sides of the equation, and then divide both sides by 2.

    asked by tom on March 18, 2007
  61. Math Algebra 2

    #4. Express the logarithm in terms of log2M and log2N: log2 1/MN #5. Simplify: log4 3 - log4 48 #6. Solve the equation: loga x = 3/2loga 9 + loga 2 #7. Solve the equation: logb (x2 + 7) = 2/3logb 64 #8. Solve the equation: loga (3x + 5) - loga (x - 5) =

    asked by AM on February 5, 2013
  62. MATHS

    i need a lil help with this If x=2 is a root of the equation 6x^3 - px^2 - 14x + 24=0, find p,hence, solve the equation 6*(2)3-p*(2)2-14*2+24=0 6*8-p*4-14*2+24=0 48-4p-28+24=0 Can take it from here? yes..i got p to be 11. I do not know what else to do from

    asked by Kim on December 9, 2006
  63. TO DRWLS/MATH HELP PLEASE

    How do i solve inequalitites with three variables. I still can't figure it outplease help. x+y=1 y-z=-3 2x+3y+z=1 THE ANSWERS ARE X=3,Y=-2,Z=1 i KNOW THE ANSWERS I JUST DON'T KNOW HOW THE BOOK GOT THE ANSWERS . i 'VE TRIED MANY DIFFERENT WAYS AND I STILL

    asked by Jasmine202005 on October 22, 2006
  64. MATH HELP

    1.Which ordered pair is the solution to y = 2x + 10? a(2, 2) b.(3, -4) c.(-3, 4) d.(1, 6) 2.Solve the following equation: m – 8 = -14 a.m = -6 b.m = 7 c.m = 26 d.m = -4 Solve the following equation: 4/7 x = -16 A)x = 42 B)x = -28 C)x = 23 D)x = -24 Solve

    asked by STUDENT on October 6, 2016
  65. MATH PLEASE CHECK IT!!2

    m-2/m-5*m+5/m-2=-1 If your problem is this: (m - 2)/(m - 5) * (m + 5)/(m - 2) = -1 (m - 2) cancels out in both the numerator and denominator on the left-hand side since you are multiplying. That leaves us with this: (m + 5)/(m - 5) = -1 To solve for m:

    asked by Margie on February 18, 2007
  66. math, correction plz

    Can someone correct these for me.PLZ Problem#1 Directions solve equation ãx+4 = 3 My answer: x = 5 Probelm #2 Directions solve equation ã(4x+1) + 3 = 0 My answer x = 2 Problem #3 Directions solve equation ã(2y+7)+4=y My answer y= 1 and y = 9 the

    asked by jas20 on March 24, 2007
  67. Algebra1!Plz help I have test 2morrow!!!

    so would the new eqaution be... 2x+8=10 then.. 2x=2 x=1? We know that y = x + 8. So if x + y = 10, then x + x + 8 = 10. but what about the y?ANd what do I do afetr that? If you know what x equals, then you can calculate what y equals. Once you've solved

    asked by Sammy on November 4, 2006
  68. math

    missed this in parade magazine, please answer for me man owns cows and chickens that total 30 when the son couned them his answer was 74 legs how many chicken did the farmer own x=cows y=chickens x+y=30 4x+2y =74 please finish for me Solve one equation for

    asked by george on March 7, 2007
  69. math

    how would you solve for y in this problem: x=(y^2+3y)^(1/3) would it equal: y= x^3/y - 3 ? and what about this problem: x= 1/[(y^2+3y-5)^3] would it equal: y = y/x + 5/y - 3? I would appreciate your help very much! Your equation is correct but it does not

    asked by kristie on June 27, 2006
  70. calculus

    Please help me solve this equation. log[2](3)+log[2](x)=log[2](5)+log[2](x-2) 1. Solve equation by setting up algebraically. 2. Use appropriate properties of Logarithm to reduce the number of logarithmic terms to only one. 3. Solve logarithmic equation.

    asked by Marie on February 16, 2011
  71. 7th grade math

    Choose the equation that you can use to solve the problem. 1. 86 is 45% of what number? 86 = 0.45n N = 0.45 x 86 0.45 = n x 86 86 = 45n Choose the equation that you can use to solve the problem 2. What percent of 26 is 4? 0.26 = n x 4 n = 0.26 x 4 4 = n x

    asked by -.-hello on February 5, 2019
  72. check+ math!

    QUESTION: A horizontal translation is applied to the graph of y= X^ 3 + 2 so that it will pass through (3, 10) what is the new equation for the graph? y=(x+a) ^3+ 2 10= (3+ a) ^3 + 2 10-2= (3+ a) ^3 + 2-2 8= (3+ a) ^3 Take the cube root of each side... 2=

    asked by kris on August 29, 2006
  73. Math

    1. Solve the equation -5y-9=(y-1) A. -1/2 B. -2 1/2

    asked by Petter on August 20, 2017
  74. ALGEBRA

    How do you solve the rational equation: (n/n-2)+(n/n+2)=(n/n^2-4) I know that the LCD of the equation is (n+2)(n-2) because that is what you get when you factor out the n^2-4 in the last part of the question. I thought I did it right until I reached the

    asked by Katie on April 15, 2008
  75. Math coin riddle need help please

    I have 56 coins consisting of nickels and quarters. The total value of the coins is $5.60. How many of each coin do I have? Algebra to the rescue... NN is number of nickles ND is the number of quarters. NN*.05 + ND*.25=$5.60 but NN + ND=56 two equations,

    asked by Maddy on August 31, 2005
  76. Math

    I need help with how to do these problems.. SOLVE THE EQUATION USING THE ZERO PRODUCT PROPERTY -8n(5n+3)=0 SOLVE THE EQUATION BY COMPLETING THE SQUARE.. ROUND TO THE HEAREST HUNDRETHS X^2-3x=4 4x^2+4x-24=0 Thank you... I don't get how to do these please

    asked by Amy on May 18, 2009
  77. math

    Not sure about this... Need to solve by substitution 8x - 4y = 16 y = 2x -4 Substitute 2x -4 for y in the first equation and solve the resulting equation for x. 8x - 4(2x-4) = 16 16 = 16 The two equations are not independent. One can be derived fron the

    asked by Janna on August 8, 2007
  78. trigonometry

    Complete the square to Solve Quadratic Equation: Solve the equation. Express the answer in simplest radical form. -x^2-7x=-11 Please Help!!!! Thanks.

    asked by Sarah on November 12, 2009
  79. College Algebra

    "Solve each equation. Round your answers to the nearest ten-thousandth." (These are my directions) Here is the equation: 3^n + 9 = 69 How do I solve this getting the answer asked for?

    asked by Ketrina on May 25, 2016
  80. Math

    Solve the equation 5m = 15 to find the number of miles that Lan jogged each day. Justify each step you take to solve the equation.

    asked by TRANSCHILD on February 7, 2018
  81. trigonometry

    Complete the square to Solve Quadratic Equation: Solve the equation. Express the answer in simplest radical form. -x^2-7x=-11 Please Help!!!! Thanks.

    asked by Sarah on November 12, 2009
  82. math444

    x^2/x+3 - 5/x+3=0 *Please solve the rational equation Your non use of parenthesis is annoying and most confusing. I assume you meant x^2/(x+3) - 5/(x+3)=0 multiply both sides of the equation by x+3, and solve.

    asked by margie on March 4, 2007
  83. algebra

    solve by substitution 5x-2y = -5 y - 5x = 3 could someone take a min a show me how to do this problem by steps so i can do the rest of my problems and wait a min so i may ask questions. I m failing my algebra class and desparately need help. 5x-2y = -5 y -

    asked by Tammy Evert on August 10, 2006
  84. math

    Jenny wanted to solve the quadratic equation x2 - 11x +18 = 0 by factoring. Which of the following equations would lead her to solve the given equation?

    asked by cam on August 30, 2014
  85. algebra2

    solve the systems of equation: First : 4x-2y = 2 Second: y = -4x-7 Should i solve by using substitution, elimination or multiply then use elimination? Try adding them. Add up the left sides and the right sides (after rearranging the second equation) the x

    asked by ann on July 26, 2007
  86. math

    you are given two equations which are both true , and yiu are asked to solve for both x and y. you plane to solve this set of eqiutions by substituting part of one equation into the other so you end up with an equation that contains only x's or y's. the

    asked by lee on July 5, 2010
  87. Algebra

    It does, thanks. I'm currently working on solving algebraic equations with two variables (Example: 3x+4y=9). The computer lesson has taught me nothing but to solve the equation by trial and error -- selecting the proper ordered pair from a multiple choice

    asked by Jack on June 20, 2007
  88. math,algebra II

    I need someone to explain to me step by step the process of this problem its in my book as an example but i am not understanding it. Ive researched the explanation of the ECHELON METHOD...BUt i am not seeingit...this is the problem that they have: Use the

    asked by alma20 on June 1, 2007
  89. math,algebra

    How do you solve these types of math problems. Directions: Solve each literal equation for the indicated variable. A=1/2h(B+b) (For b) Area of a trapezoid It is just a matter of algebraic manipulation. A=(1/2)h(B+b) Multiply both sides of the equation by

    asked by jasmine20 on December 18, 2006
  90. Math

    -x^3 + 1.85x^2 - x +0.15 = 0 how can you solve for x? An exact solution or a numerical solution? Exact solutions can be obtained as follows: x^3 - 1.85x^2 + x - 0.15 = 0 First get rid of the quadratic term by substituting: x = (y + 1.85/3) You then obtain

    asked by JV on July 10, 2007
  91. Calculus AB

    Solve the differential equation: dy/dx= (x^2+y^2)/(2xy) I know how to solve this type of problem, but I am struggling getting all of the x's and y's on different sides of the equation. Thank you for your help.

    asked by Jake on February 28, 2011
  92. Algebra

    11.) -4 = 2/5 x -- = my answer A.x = 10 B.x = -10 C.x = -1-- D.x = 1 12.) Which equation is an identity? A. 11 - (2v + 3) = -2v - 8 B. 5w + 8 - w = 6w - 2(w - 4)-- C. 7m - 2 = 8m + 4 - m D. 8y + 9 = 8y - 3 13.) Which equation has no solution? A. 8 - (5v +

    asked by XD on October 16, 2018
  93. substitution method

    -3x+y=-5 x+2y=0 Your equations: -3x + y = -5 x + 2y = 0 Let's solve the second equation for x: x = -2y Now let's substitute -2y for x in the first equation to solve for y: -3(-2y) + y = -5 6y + y = -5 7y = -5 y = -5/7 Now let's substitute -5/7 for y in the

    asked by sooto on February 20, 2007
  94. ks maths

    2x - 4y = 12 3x + 2y = 10 whats the answer Do you know how to solve simultaneous equations? Multiply equation (2) by 2, then add eqution 1 to eqution 2. That process gets rid of the y term. Then solve for x. Substitute the value of x into either equation

    asked by Me on July 15, 2006
  95. algebra

    solve for x (24+2x)(10+2x) - 240 = 152 First multiply. 24(10) = ___ 2x (2x) = ____ Now subtract 240. Can you finish the problem from here? dont i need to put this in equatic equation to solve for x. cause i need to find the width of a small rectangle

    asked by q on August 3, 2007
  96. Algebra

    Please help! I need to factorise and solve this equation, x^2 +x -30 =0 I then need to explain how I would use the answer drom this to solve the equation 4x^2 +4x-120=0

    asked by Mac on May 5, 2010
  97. Math

    Can someone please explain how to solve 3x^2+7x-15=0 by using the quadratic equation? I know that the equation is: ax^2+bx+c=0 but I get confused about how to set the problem up and solve. Thanks.

    asked by B.B. on September 26, 2009
  98. maths

    how would i solve the differential equation dx/dt=-kx^2 i.e. solve for x as a function of t. I've been told to rearrange the equation to yield dx/x^2=-k dt but what can and should I do now?

    asked by xX_Supaman_Xx on December 14, 2007
  99. Algebra 1

    Solve the following equation by graphing the related function. 1. 4x^2 + 8x = 32 A: ? Use the Zero Product Property to solve the following equation. 2. x(x + 3) = 32 A: ?

    asked by Victoria on May 12, 2014
  100. math

    compare and contrast: below are two equations. solve each equation and compare the two solutions. choose the statement that is true about each solution. equation #1 2x-3=-17 5x+3=12 A. equation #1 and equation #2 have the same number of solutions B.

    asked by HELLP PLEASE on October 13, 2014

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