Find all real solutions of the equation. (Enter your answers as a comma-separated list. If there is no real solution, enter NO REAL SOLUTION.) x4 + 27x = 0

148,855 results
  1. Calculus 1

    Find the number c that satisfies the conclusion of the Mean Value Theorem on the given interval. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f(x) = sqrt(x), [0,16]

  2. Trig

    Find all angles θ between 0° and 180° satisfying the given equation. (Enter your answers as a comma-separated list. Round your answers to one decimal place.) Sin θ = 1/4

  3. Pre-Calc

    sin(2θ)=1/2 Find all solutions in the interval [0, 2π). (Enter your answers as a comma-separated list.) k = any integer What I have so far: pi/12 + kpi, 5pi/12 + kpi However, I do not know how to solve for the interval. Please help, thank you!

  4. calculus 1

    Use Newton's method to find all solutions of the equation correct to six decimal places. (Enter your answers as a comma-separated list.) 6 cos(x) = x + 1 can somebody explain to me step by step on how to solve this problem?

  5. Math

    An equation is given. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal places where appropriate. If there is no solution, enter NO SOLUTION.) Find the solutions in the interval: √3tan(3θ)-1 Interval

  6. Trigonometry

    Solve the equation. (Find all solutions of the equation in the interval [0, 2π). Enter your answers as a comma-separated list.) 4 tan(2x) − 4 cot(x) = 0

  7. Calculus 1

    Consider the following. B(x) = 3x^(2/3) − x (a) Find the interval of increase.(Enter your answer using interval notation.) Find the interval of decrease. (Enter your answer using interval notation.) (b) Find the local maximum value(s).(Enter your answers

  8. calculus 1

    Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f(x) = 4x3 + x2 + 4x

  9. precalculus

    Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. tan θ = − sqrt 3/3

  10. Calculus

    We can find some of the solutions of sin x = 0.2 graphically by graphing y = sin x and y = 0.2 (I was able to figure this one out) Use the graph below to estimate some of the solutions. (Let −3π < x < 3π.) Enter your answers as a comma-separated list.

  11. maths

    Use a graphing utility to approximate the solutions of the equation in the interval [0, 2Ï€). (Round your answers to three decimal places. Enter your answers as a comma-separated list.) 6 sin(x) + 3 cos(x) = 0

  12. Pre-Cal

    Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to two decimal places where appropriate.) cos θ = −1/2 1).θ= Answer-->(2π/3)+2πn, 4π/3+2πn 2). List six specific solutions a). b). c). d).

  13. Calculus

    Find the number c that satisfies the conclusion of the Mean Value Theorem on the given interval. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f(x) = √x , [0, 25]

  14. Trigonometry

    Find all solutions of the equation in the interval [0, 2π). (Enter your answers as a comma-separated list.) cos(x+3pi/4) - cos(x-3pi/4) = 1

  15. Trigonometry

    Find all degree solutions. (Enter your answers as a comma-separated list. Let k be any integer.) 2 cos2 6θ + 3 cos 6θ + 1 = 0

  16. calculus

    Let f(x) = (x − 3)−2. Find all values of c in (2, 5) such that f(5) − f(2) = f'(c)(5 − 2). (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) C=?

  17. Trigonometry

    Solve the equation for exact solutions in the interval 0 ≤ x < 2π. (Enter your answers as a comma-separated list.) cos 2x cos x − sin 2x sin x = 0

  18. Pre-Cal

    An equation is given. (Enter your answers as a comma-separated list. Round terms to three decimal places where appropriate. If there is no solution, enter NO SOLUTION.) 2 cos 2θ − 1 = 0 a). Find all solutions of the equations answer--> θ= (π+6nπ)/6 ,

  19. pre cal

    Find the zeros of the function algebraically. (Enter your answers as a comma-separated list.) f(x) = 3x + 18

  20. Precal

    Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to two decimal places where appropriate.) cos θ = 0.16 I know how to find the answers when it's in fraction form, however, I do not know how to do

  21. Math

    We can find the solutions of sin x = 0.6 algebraically. (Round your answers to two decimal places.) (a) First we find the solutions in the interval [0, 2π). We get one such solution by taking sin−1 to get x = ________ (smaller value). The other solution

  22. Calculus 1

    Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f(x) = x^(5)e^(-6x)

  23. Trig

    Solve the multiple-angle equation. (Enter your answers as a comma-separated list. Let n be any integer. Enter your response in radians.) sec 9x = 2

  24. Calculus 1

    Use Newton's method to find all roots of the equation correct to six decimal places. (Enter your answers as a comma-separated list.) (x − 9)^2 =ln x

  25. precalc

    Solve the equation. (Enter your answers as a comma-separated list. Round your answers to four decimal places.) 2^x − 8(2^−x) + 2 = 0

  26. trig

    Find all angles θ between 0° and 180° satisfying the given equation. (Enter your answers as a comma-separated list. Round your answers to one decimal place.) cos θ = 1/7

  27. Pre-calc

    Use a graphing utility to graph y1 and y2 in the interval [−2𝜋, 2𝜋]. Use the graphs to find real numbers x such that y1 = y2. (Enter your answers as a comma-separated list.) y1 = cos x y2 = 1 Is the answer 𝜋 ,-𝜋 ? or is it zero? Because I

  28. MATH

    Find all real solutions of the equation by first rewriting the equation as a quadratic equation. (Enter your answers as a comma-separated list.) 4x4 + 15x2 − 4 = 0

  29. Pre-Calculus

    f(x) = cos(x) on the interval [−2π, 2π] (a) Find the x-intercepts of the graph of y = f(x). (Enter your answers as a comma-separated list.) (b) Find the y-intercepts of the graph of y = f(x). (Enter your answers as a comma-separated list.) (c) Find the

  30. Pre calc

    An equation is given. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal places where appropriate. Find All solutions of the equation 2sin(theta/3)+ square root three =0

  31. precalculus

    Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to two decimal places where appropriate.) sin θ = root 2/2 and List six specific solutions.

  32. Calculus 1

    Use Newton's method to find all roots of the equation correct to six decimal places. (Enter your answers as a comma-separated list.) 7/x = 1 + x^3

  33. Algebra

    Find the real zeros of f. (Enter your answers as a comma-separated list.) f(x) = −x2 + 7x + 8x X =_____ Find the x-intercepts of the graph of f. (x, y) =_______(smaller x-value) (x, y) =_______(larger x-value)

  34. Trigonometry

    Find all solutions of the equation in the interval [0, 2π). (Enter your answers as a comma-separated list.) sin(x + π) − sin x + sqrt(3)=0

  35. math

    Find the solutions of the equation 3^x = x^4, rounded to two decimal places. (Enter your answers as a comma-separated list.)

  36. Trigonometry

    Solve the equation, where 0° ≤ x < 360°. Round approximate solutions to the nearest tenth of a degree. (Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.) 3 sin x − 3 cos x = 1

  37. Algebra

    Use the Quadratic Formula to solve the equation. (Enter your answers as a comma-separated list.) 13x^2 + 1= -10x

  38. precal

    Find all solutions of the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to two decimal places where appropriate.) 2 cos θ − 1 = 0

  39. Algebra

    Solve each equation using the quadratic formula. (Enter your answers as a comma-separated list.) x^2-2x+2=0

  40. Calculus 1

    Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) F(x) = x^4/5(x − 1)^2

  41. mathematics

    Find the solutions of equation 2^ x equiv x^ 5 rounded to one decitrial place. Enter your answers as a comma-separated .

  42. math

    Find two quadratic equations having the given solutions. (There are many correct answers. Use x for the variable. Enter your answers as a comma-separated list of equations.) 4+5√(5), 4-5√(5)

  43. Calculus

    Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) h(p) = (p − 2)/(p^2 + 9)

  44. Trigonometry

    Find all solutions of 4(sin(x)**2)-8cos (x) -8 = 0 in the interval (2pi, 4pi). (Leave your answers in exact form and enter them as a comma-separated list.)

  45. precal

    Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal places where appropriate. If there is no solution, enter NO SOLUTION.) 2 cos2 θ − cos θ − 1 = 0

  46. Math

    Find the value(s) of x for which the equation is true. log(x + 20) = log(x) + log(20) Solve the logarithmic equation for x. (Enter your answers as a comma-separated list. Round your answer to four decimal places.) ln(x − 2) + ln(x + 3) = 1

  47. mathematics

    Use Newton's method to find all solutions of the equation correct to six decimal places. (Enter your answers as a comma-separated list.) sqrt(x + 1) = x^2 − x x = ?

  48. trig

    Find all solutions of cos (x) + 1/2 sec (x) = -3/2 in the interval (2pi, 4pi) (Leave your answers in exact form and enter them as a comma-separated list.)

  49. Algebra 2

    1. The roots of the quadratic equation z^2 + az + b = 0 are 2 - 3i and 2 + 3i. What is a+b? 2. Find all pairs of real numbers (x,y) such that x + y = 6 and x^2 + y^2 = 28. If you find more than one pair, then list your pairs in order by increasing x value,

  50. precal

    Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to two decimal places where appropriate.) cos θ = 0.32

  51. Calculus 1

    Find the critical numbers of the function. (Enter your answers as a comma-separated list. Use n to denote any arbitrary integer values. If an answer does not exist, enter DNE.) f(θ) = 4 cos θ + 2 sin^2 θ

  52. precalculus

    Find all solutions of the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to two decimal places where appropriate.) tan^2 θ − 3 = 0

  53. Calculus

    Using inverse trigonometric functions, find a solution to the equation cos(x)=0.2 in the interval 0≤x≤4π. Then, use a graph to find all other solutions to this equation in this interval. Enter your answers as a comma separated list. Thank

  54. Math Problem (please help)

    Find all the zeros of the function. (Enter your answers as a comma-separated list.) f(x) = (x + 3)(x − 7)2 X=

  55. pre calc

    Find all zeros of the polynomial. (Enter your answers as a comma-separated list.) P(x) = x3 − 11x2 + 33x − 35

  56. Math

    Find the solutions of the equation. (Enter your answers as a comma-separated list.) x^4 = 625

  57. help ?

    Let f(x) = (x − 3)^−2.Find all values of c in (1, 4) such that f(4) − f(1) = f'(c)(4 − 1).(Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.)

  58. college algebra

    Find all real solutions of the equation. (Enter your answers as a comma-separated list. If there is no real solution, enter NO REAL SOLUTION.) x4 + 27x = 0

  59. Trigonometry

    Find all solutions of 4 (cos (x)**2)-1=0 in the interval (6pi, 8pi). (Leave your answers in exact form and enter them as a comma-separated list.)

  60. Calculus

    Find all values of x in the interval [0, 2π] that satisfy the equation. (Enter your answers as a comma-separated list.) 18 + 9 cos(2x) = 27 cos(x)

  61. calculus

    For what values of r does the function y = erx satisfy the differential equation y'' − 8y' + 2y = 0? (Enter your answers as a comma-separated list.)

  62. Trigonometry

    Use inverse trigonometric functions to find the solutions of the equation that are in the given interval, and approximate the solutions to four decimal places. (Enter your answers as a comma-separated list.) 10 sin^2 x = 3 sin x + 4; [0, 2π)

  63. GED MATH

    You are given an equation of the form y = ax2 + bx + c. y = 4x2 + 2x − 3 (a) Use a graphing utility to graph the equation and to estimate the x-intercepts. (Use a zoom-in process to obtain the estimates; keep zooming in until the first three decimal

  64. Calculus URGENT

    Find the number c that satisfies the conclusion of the Mean Value Theorem on the given interval. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f(x) = √x [0, 9] c=? I've tried quite a few different answers

  65. Algebra

    Solve each equation using the quadratic formula. (Enter your answers as a comma-separated list.) x^2 -2x +10=0

  66. calc

    If x2 + y2 = 100 and dy/dt = 9, find dx/dt when y = 8. (Enter your answers as a comma-separated list.)

  67. math

    Solve the quadratic equation by factoring. (Enter your answers as a comma-separated list.) 25x^2 + 30x + 9 = 0

  68. Calculus

    Solve the quadratic equation by factoring. (Enter your answers as a comma-separated list.) 5x2 − 23x = −12

  69. algebra 1

    Find the complete solution set. (Enter your answers as a comma-separated list.) x^3 +8x^2+5x-14=0; {1}

  70. calculus

    If f ''(x) = x3(x−1)3(x+5)2, find the x-values for all the points of inflection. (Enter your answers as a comma separated list.)

  71. calculus

    Find any critical numbers of the function. (Enter your answers as a comma-separated list.) g(t) = 3t ln t

  72. Chelsea

    Solve the equation. (Find only the real solutions. Enter your answers as a comma-separated list.) x + 2 = 38 − (x/2)

  73. algebra

    Find the real solutions of the equation. (Round your answers to three decimal places. Enter your answers as a comma-separated list.) 3.8x4 − 1.7x2 = 2.8

  74. Trigonometry

    Use inverse trigonometric functions to find the solutions of the equation that are in the given interval, and approximate the solutions to four decimal places. (Enter your answers as a comma-separated list.) cos(x)(9cos(x) + 4) = 4; [0, 2π)

  75. Pre-Calc

    Solve the quadratic equation by factoring. Check your solutions in the original equation. (Enter your answers as a comma-separated list.) x^2 + 2ax + a^2 = 0

  76. Algebra

    Find the real zeros of f and the x-intercepts of the graph of f. (Enter your answers as a comma-separated list. Separate multiple ordered pairs with commas.) f(x) = −x2 + 6x + 16

  77. Calculus

    Solve the equations below exactly. Give your answers in radians, and find all possible values for t in the interval 0≤t≤2π. If there is more than one answer, enter your solutions in a comma separated list. (a) sin(t)=2/√2 when t= (b) cos(t)=1/2 when

  78. math

    We consider the non-homogeneous problem {y''-16y} = {256x^{2}} First we consider the homogeneous problem {y''-16y} = 0 : 1) the auxiliary equation is a r^2+br+c = =0 . ________________ 2) The roots of the auxiliary equation are (enter answers as a comma

  79. Calculus

    Find all values of x in the interval [0, 2π] that satisfy the equation. (Enter your answers as a comma-separated list.) 3 sin(2x) = 3 cos(x)

  80. math

    (a) Complete the square by writing in the form . Note: the numbers and can be positive or negative. x^2-14x-17=(x-7)^2+ (b) Solve the equation by completing the square or using the quadratic formula. If there is more than one correct answer, enter your

  81. Trigonometry

    Solve the equation for exact solutions in the interval 0 ≤ x < 2π. (Enter your answers as a comma-separated list.) sin 2x cos x + cos 2x sin x = 0

  82. Mathematics

    Find the zeros of the function algebraically. (Enter your answers as a comma-separated list.) f(x) = 4x + 3

  83. precal

    Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to two decimal places where appropriate.) tan θ = 1

  84. Math

    Find all real solutions of the equation. (Enter your answers as a comma-separated list. If there is no real solution, enter NO REAL SOLUTION.) 17x3 − x + 3 = x3 + 24x2 + x

  85. math

    Solve the quadratic equation (2x+3)(x-3)=7. If there is more than one correct answer, enter your answers as comma separated list. If there are no real solutions,enter none. Please help!!!!! :(

  86. Trigonometry

    Use inverse trigonometric functions to find the solutions of the equation that are in the given interval, and approximate the solutions to four decimal places. (Enter your answers as a comma-separated list.) 10 sin^2 x = 3 sin x + 4; [0, 2π)

  87. Trigonometry

    Use inverse trigonometric functions to find the solutions of the equation that are in the given interval, and approximate the solutions to four decimal places. (Enter your answers as a comma-separated list.) 10 sin^2 x = 3 sin x + 4; [0, 2π)

  88. Pre-Cal:(Cont.)

    [Note: I've tried this problem 4 times already and still have it wrong. I know the steps to doing it but for some reason its wrong. an someone please help me get these answers for (b).] An equation is given. (Enter your answers as a comma-separated list.

  89. Pre-Cal

    Find all Real solutions of the Equation: (ENter as comma sparated answers, if there are no real solutions then just leave as NRS) x^(4/3)-9x^(2/3)+14=0 x=?

  90. algebra

    solve the equation. Enter the answer as a comma-separated list. if there is no real solution, enter no real solution. x upper 2 - 10x+20=0

  91. Calcalus

    Solve the equations below exactly Give your answers in radians, and find all possible values for t If there is more than one answer, enter your solutions in a comma separated list (a) sin(t)= sqroot(2)/2 when t= (b) cos(t)=1/2 when t= (c) tan(t)=-1 when t=

  92. precalc

    Solve the equation. (Enter your answers as a comma-separated list.) 5x^2e^(−2x) − 3x^3e^(−2x) = 0

  93. Calculus 1

    Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) h(t) = t^(3/4) − 3t^(1/4)

  94. Math

    Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f(x)=x^(4/5)(x − 6)^2

  95. algebra

    Find A ∪ B. (Enter your answers as a comma-separated list.) A = {2, 4}, B = {0, 1, 2, 3, 4, 5}

  96. calculus

    If x^2 + y^2 = 100 and dy/dt = 6, find dx/dt when y = 8. (Enter your answers as a comma-separated list.)

  97. Algebra

    Solve the following quadratic equation by completing the square. (Enter your answers as a comma-separated list.) a^2-12a+52=0

  98. algebra

    Use the Quadratic Formula to solve the equation. (Enter your answers as a comma-separated list.) 13x^2 + 1 = −10x

  99. Algebra

    Use the Quadratic Formula to solve the equation. (Enter your answers as a comma-separated list.) 13x2 + 1 = −10x show in steps

  100. algebra

    Solve | 4 x+ 4 | = 3. Enter your solutions in a comma-separated list. x = I came up with -1/4 which is wrong

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