# Show that the equation 3x^2 - x^3 + 3 = 0 can be rearranged to give: x = 3 + 3 ---- x^2 x^3 = Divide by ? = x = 3 + 3 ---- x^2 Using Xn+1 = 3

62,835 questions, page 41
1. ## math help

find an equation of the line passing through the given points. Write the equation in function notation (4,5) and (2,9) f(x)=

asked by Anonymous on October 11, 2010
2. ## HELP

what is an equation in slope intercept for. for the line that passes through the points 1,-3 and 3,1 y=3x+1 ** y=x-3 y=2x+5 y=2x-5 For the equation -4y=8x what is the constant of variation? -4 -2 ** 1 2 Are they right

asked by Jason on February 10, 2017
3. ## math

find an equation of the line with the given slope that passes through the given point. write the equation in the form Ax+By=C M=3/2, (7,-3)

asked by ann on October 29, 2013
4. ## Pre-Calculus

Find the equation of the hyperbola whose vertices are at (-1,-5) and (-1,1) with a focus at (-1,-7). So far I have the center at (-1,-2) and part of the equation is (y+2)^2 - (x+1)^2 but do not know how to figure a^2, b^2, or c^2. Help please....

asked by Lucy on October 12, 2008
5. ## math

find an equation of the line containing the given pair of points. Use function notation to write the equation. (5/7,10/14) and (-1/7,13/14) f(x)

asked by kate on October 8, 2010
6. ## calculus

what is the equation for taking the derivitive of -x^2+x just equation setup i don't need an answer from power rool

asked by jerry on December 30, 2010
7. ## College Algebra

Given the equation x^2+y^2-8x-6y=0 (a) Write the equation in standard form. (b) State the center, radius, and intercepts.

asked by sunny on January 4, 2012
8. ## Calculus

I need to solve this equation for P. I've got it partially solved, but I'm having trouble on the last part. Here's the equation. 4 = -200P^-3 I can get it down to: -50 = P^-3 I think? But, I don't know how to get the -3 away from the P.

9. ## calculus

supose that (f(x+h)-f(x))/h=3x^2-6h+5 and f(1)=8. ind the equation of the tangent line to the graph of y=f(x) at x=1. if we write this equation in the form y=mx+b then m=? and b=?

asked by Thalia on September 30, 2010
10. ## Math

Explain how to solve? Which equation below shows the equation y = – 1/4x + 4 written in standard form using integers? A) 2x + 3y = 21 B) 3x – 2y = 21 C) –2x + 3y = 21 D) –2x – 3y = 21

asked by Jane on January 5, 2012
11. ## Algebra

Write an equation that expresses the relationship. Then solve the equation for c. q varies jointly as c and the square of h.

asked by Jacqueline on October 23, 2014
12. ## math

find an equation of the line passing through the given points. Write the equation in function notation (4,5) and (2,9) f(x)=

asked by Anonymous on October 11, 2010
13. ## algebra

Find algebraically the equation of the axis of symmetry and the coordinates of the vertex of the parabola whose equation is y= -2x-8x+3

asked by KR on February 1, 2010
14. ## College Algebra

Solve each equation. If an equation has no solution, so indicate. (no complex #) a - 1 = _ 3a + 2 a+2 a2 + 4a + 4 reads: a over a+2 minus 1 equals -3a+2 over a2 (a squared) + 4a + 4

asked by Colby on September 16, 2012
15. ## Calculus

Find an equation of the tangent line to the graph of the function f defined by the following equation at the indicated point. (x - y - 1)3 = x; (1, -1)

asked by Anonymous on February 18, 2011
16. ## math

Can someone please help? Solve the differential equation dy/dx = 6xy with the condition y(0) = 40 Find the solution to the equation y= ______

asked by mark on May 19, 2013
17. ## Algebra

For the following system, if you isolated x in the first equation to use the Substitution Method, what expression would you substitute into the second equation? −x − 2y = −4 3x + y = 12 −2y − 4 2y − 4 2y + 4 −2y + 4 --- I think it'd be this

asked by anonymouse on December 13, 2016
18. ## algebra

Given the equation x^2+y^2-8x-6y=0 (a.) Write the equation in standard form . (b.) State the center, radius, and intercepts.

asked by sarah on January 18, 2012
19. ## Chemistry

Why would potassium no longer appear in the equation of a net ionic equation with KIO3 being the oxidizing agent?

asked by Teel on April 20, 2010
20. ## math

How do I convert the polar equation r - 3cos(theta) = 5sin to cartesian equation form?

asked by karen on March 22, 2010
21. ## Math

Express the given equation in rectangular coordinate equation and sketch the curve. r^2=1+sin(theta)

22. ## algebra ll

the first equation of the system is mutiplied by 4, by what number would you mutiply the second equation to eliminate the y variable by adding? first: 2x+5y=16 second:8x - 4y =10 i got 2 0r 5 im not sure which one

asked by Anonymous, on August 15, 2008
23. ## Calculus

Find an equation of the tangent line to the graph of the function f defined by the following equation at the indicated point. (x - y - 1)3 = x; (1, -1) y =

asked by Ant on June 13, 2013
24. ## Algebra

I have a parabola that I have to write as an equation I found the vertex as (-3,-2) and the following points (-4,-1)(-2,-1),(-5,2),(-1,2). I can't seem to come up with the correct equation. I'm using the formula y=a(h-k)^2+k but I'm not doing something

asked by Jennifer on May 15, 2011
25. ## ALGEBRA 2

The equation y = mx + b is known as the slope-intercept form of a line. Which equation shows y = mx + b correctly solved for x?

asked by KELR on January 12, 2012
26. ## Calculus

Find the equation of the tangent plane and symmetric equation for the normal line to the given surface at P: xy^2 + zy^2 + 4y -xz^2 = 18 P(-2,0,3)

asked by Elyse on June 2, 2013
27. ## Algebra

Write a trigonometric equation for which the solutions lie in quadrant I and II. Then solve the equation for 0

asked by Blank on March 12, 2019
28. ## Geometry

Point J is between H and K on line HK. Use the given information to write an equation in terms of x. Solve the equation. Then find HJ and JK HJ=5x-3 JK=x-9 KH=5x

asked by anonymous on August 27, 2015
29. ## science

a =vf-vi/t is the equation for calculating the acceleration of an object. Write out the relationship shown in the equation, using words.

asked by Milli on February 22, 2012
30. ## math

Find an equation of the tangent line to the graph of y = g(x) at x = 2 if g(2) = −6 and g'(2) = 5. (Enter your answer as an equation in terms of y and x.)

asked by Yuxiang Nie on February 21, 2019
31. ## Geometry

Find the equation of a line that is perpendicular to y=2x+7, and passes through the point (-4, 7) I got the answer y=-1/2x+5, is that the correct equation??

32. ## Algebra

Is this equation true or false? Why? 20-4ã2=16ã2 With like radicands should I add the 4 to the other side of the equation? I'm really lost. Can someone please explain this to me?

asked by C on September 9, 2010
33. ## Polar Equations

Identify each polar equation by changing the equation to rectangular coordinates. Let t = theta (1) t = -pi/4 (2) r(sin(t)) = -2

asked by sharkman on February 23, 2008
34. ## chemistry

the net ionic equation for the following molecular equation KNO2(aq) + HCl(aq) KCl(aq) + HNO2(aq)

asked by Jasmine on October 10, 2012
35. ## Calculus

Find the equation of the tangent plane and symmetric equation for the normal line to the given surface at P: xy^2 + zy^2 + 4y -xz^2 = 18 P(-2,0,3)

asked by Kim on June 2, 2013
36. ## Precalc

i need help with this equation anything help will be greatly appreciated find the standard equation of a parabola with a focus (-2,0) directrix x=3

asked by Natali on November 13, 2009

Find an equation of the tangent line to the graph of the function f defined by the following equation at the indicated point. (x - y - 1)3 = x; (1, -1)

asked by Anonymous on February 18, 2011
38. ## Calculus

Find inverse equation of y= 3e^(x-1)^5 Answer I got is (ln(x/3))^(1/5) +5 =y But I think it's wrong because the domain and range is really different from the original equation

asked by Po on January 22, 2017
39. ## Maths

A differential equation question Find the general solution to the equation (dy/dx)^2 + sinxcos^2x(dy/dx) - sin^4x = 0 Thanks

asked by Peirs on March 16, 2018
40. ## college algebra

Use Descarte's rule of signs to discuss the possibilities for the roots of the equation. Do not solve the equation -5r^(4)+6r^(3)+9r-15=0

asked by samantha on October 27, 2010
41. ## Algebra II

Write an equation for a parabola that opens upward from its vertex at (-4,3). What is the equation of its line of symmetry?

asked by Sam on November 27, 2012
42. ## Math

Write an equation to represent the relationship " a number decreased by 7 is the same thing as 28" and then solve the equation

asked by Ivory on September 9, 2015
43. ## Alg.

Find the coordinates of the vertex and the equation of the axis of symmetry of the parabola given by the equation. y = − 1/7 x^2 + x − 3 and graph it

asked by K- ASAP on May 7, 2014
44. ## Math

Can someone please help me? 33 1/3% of 7,500 is what number? (Write the equation and solve it ) this is my equation: 33 1/3% = 7500 100 Base= x

asked by Anonymous on August 21, 2009
45. ## Algebra

Suppose that Y varies directly with X, and Y=16 when X=10. (a) Write a direct equation that relates X and Y Equation: (b) Find Y when X=15 Y=

asked by Anonymous on March 11, 2016
46. ## Chemistry

Complete and balance the following molecular equation. Cu(OH)2(s)+HClO4(aq)→ And write the net ionic equation for it.

asked by Thomas on February 26, 2019
47. ## maths

convert polar equation into rectangular equation? theta= 4pi/3. Confused kindly help

asked by Asfand on November 25, 2016
48. ## Chemistry

Complete and balance the following molecular equation. Al(OH)3(s)+HNO3(aq)→ And write the net ionic equation for it.

asked by Thomas on February 26, 2019
49. ## Math 11

The equation y= x^2-8 is translated 7 units to the left. Which equation describes the graph after it has undergone this translation? a) y=x^2-1 b)y=x^2-15 c) y=(x+7)^2-8 d) y=(x-7)^2-8 e) y=-7x^2-8

asked by julie on September 17, 2007
50. ## geometry

using the slope y-intercert equation, how do you write an equation that passes through point p and is parallel to the line. P(2,4), y = -3x. Is it y = -3x + 10? Thanks

asked by jill on September 28, 2016
51. ## Mechanics

2) A geometry textbook gives the equation of a parabola as y =x2, where x and y are measured in centimetres. How can this equation be dimensionally correct?

asked by Sinawo on August 18, 2016
52. ## chemistry

Balance the following equation by partial equation method:- P4 + HNO3= H3PO4 + NO2 + H2O

asked by simran on May 27, 2014
53. ## chemistry

The Rydberg equation (1/lambda=R/ni^2–R/nf^2) can be treated as a line equation. What is the value of nf as a function of the slope (m) and y-intercept(b)?

asked by Katherine on January 10, 2010
54. ## pre cal

The given equation is a partial answer to a calculus problem. Solve the equation for the symbol y'. 6y2y' − y − xy' = x y' =

55. ## math

Use Descarte's rule of signs to discuss the possibilities for the roots of the equation. Do not solve the equation -5r^(4)+6r^(3)+9r-15=0

asked by Allie on October 26, 2010
56. ## math help & correction

Problem #1 Is this correct or wrong? Find the slope of the line passing through the points(-1, -1)and(-1, 2). Write the equation of the line. For this one I KEEP GETTING Y= - (3)/(2)x-2.5 Problem #2 Find the y-intecept and slope of 7x+9y=72 My answer:

asked by jacky on March 31, 2007
57. ## MATH

Carolyn and Kim are selling lemonade this summer.  It costs \$0.10 to make each cup of lemonade.  They are going to sell each cup of lemonade for \$0.25. a. What is the total cost to make 55 cups of lemonade? Show or explain your work.\$5.50 b. If they

asked by NINA on February 20, 2012
58. ## Science

* P is a a black powder, which, when fused with a mixture of potassium hydroxide and potassium nitrate and then treated with water yields a green solution. The green solution turn purple when acidified. -identify P, the green solution and purple solution.

asked by Piom on July 30, 2011
59. ## Intermediate Algebra

If the discriminant of a quadratic equation has the given value, determine the number and type of solutions of the equation. A.48 B.0

asked by Ralph on April 21, 2012
60. ## Math

Solve the equation (5y+1)^2 + 5(5y+1) + 6 = 0. Do not expand first. I solved the equation up to 25y^2 + 35y + 12 = 0 and not sure how to proceed from here on.

asked by Valdes on September 4, 2015
61. ## algebra

Find the equation of the line that passes through the points ( 8, - 15 )and(-2,5). write the equation in y=mx = b form.

asked by Julie on February 19, 2011
62. ## algebra

write each equation in slope-intercept form. then graph the line described by the equation. 2y=4x+6

asked by genny on January 23, 2014
63. ## algebra

write each equation in slope-intercept form. then graph the line described by the equation. 3y+2x=12

asked by genny on January 23, 2014
64. ## Math

7d-4 (d+8) = -8 ??? When I did this equation I got 8=d I know I did something wrong. I just don't know any other way to do it. I did basic equation-solving rules and got his answer. Help?

asked by Andrey on January 6, 2015
65. ## Math

Multiply the equation by a power of 10 to write an equivalnet equation with integers coefficients. 6.2x + 4.5 = 3.8x+ 7.9

asked by Ronique on January 7, 2008
66. ## Precalculus

Solve the equation (x+3)(x-3) = -9. What are the solutions to the equation if you replace x first with sinx and then with cosx, where 0≤x≤2pi?

asked by Melissa on January 26, 2012
67. ## math

Describe the difference between an open equation and a closed equation. And on my last quest did steve mean 4,0 and 3, -2?

asked by Jman on August 29, 2013
68. ## algebra

Replace each equation with constants to complete the square and form a true equation x^2+2x+--=(x+---)^2

asked by mema on May 26, 2011
69. ## Math

I need help with an equation problem. Write the equation of the line that passes through each pair of points. (-2, -7) and (3,8)

asked by Johnnie on November 28, 2011
70. ## MATH

Julie is solving the equation x2 + 6x + 9 = 0 and notices that the discriminant b2 - 4ac has a value of 0. This tells her that the equation has...

asked by LINDSEY on May 16, 2013
71. ## Precalculus

Find the equation of the ellipse with the center at (2,-3), one focus at (3,-3), and one vertex at (5,-3). Also graph the equation.

asked by Anonymous on May 13, 2014
72. ## Mathematics

The equation of a circle is given by D: x^2 + y^2 - 2x - 4y - 20 = 0 Use implicit differentiation to find the equation of the normal D at the point S(5, -1)

asked by James on February 25, 2016
73. ## Math Help

What is the value of x in the equation 3(2x + 4) = −6? A. −3 B. 1 C. 12 D. 19 Please explain this I'm having difficulties with this equation, I don't want to fail and loose my A in the class. Thank you.

asked by Alex on March 30, 2017
74. ## Algebra help

Match the equation 4x^6-2x^3+1=0. With a substitution from the column that could be used to reduced the equation to quadratic form: a) u=x^-1/3 b) u=x^1/3 c) u=x^-2 d) u=x^2 e) u=x^-2/3 f) u=x^3 g) u=x^2/3 h) u= x^4

asked by Miguel on March 24, 2011
75. ## Algebra help

Match the equation 4x^6-2x^3+1=0. With a substitution from the column that could be used to reduced the equation to quadratic form: a) u=x^-1/3 b) u=x^1/3 c) u=x^-2 d) u=x^2 e) u=x^-2/3 f) u=x^3 g) u=x^2/3 h) u= x^4

asked by Miguel on March 24, 2011
76. ## math

find an equation of the line passing through the pair of points. write the equation in Ax+By=C (-9,7), (-10,-4)

asked by ann on October 29, 2013
77. ## Math

Which equation is the equation of a line that passes through (–10, 3) and is perpendicular to y = 5x – 7? y = 5x + 53 y = –x – 7 y = –x + 1 y = x + 5 Help - I don't understand...being told it is C but why?

asked by Deborah on November 8, 2012
78. ## maths

a)If one root of the equation x^2 + a(3a-5)x = 2(x+4a) is negative of the other. Find the values of a . b) If a>0, use the result of (a) to solve the equation.

79. ## algebra

If is a line whose equation is y= 2x - 1, find the equation of the image of under each of the following translations: in book explanation a. (x, y) S (x, y - 2) b. (x, y) S (x +3, y) c. (x, y) S (x - 3, y + 2)

asked by Rebecca on March 3, 2010
80. ## College Algebra

For parts (a)–(c) use the following equation: y = 2/(x + 6). (a) Find the ordered pair that represents a solution to the equation when the value of x is 0.

asked by Autumn on September 7, 2008
81. ## Math

Find an equation of the line. Write the equation in the standard form. Through (7,6); parallel to 4x-y=9

asked by Charlie on August 22, 2018
82. ## math

A circle has centre(5,12) and its tangent to the line with equation 2x-y+3=0. Wtite equation of the cirle

asked by donald on December 28, 2016
83. ## Precalculus

Identify the graph of the equation. What is the angle of rotation for the equation? y^2+8x=0 How do i figure this out? I think it has to be a hyperbola.

asked by Beatrice on August 19, 2011

equation 1.5(8x)=300 It tells me to simplify the left side of the equation and solve. Can you help?

asked by tito on October 14, 2008
85. ## Chemistry

When working with the combined gas law you would use the following equation: (P1)(V1)/T1 = (P2)(V2)/T2 I am not quite sure how you would rearrange this equation to solve for T2. Please Help ! :)

asked by Anonymous on January 7, 2009
86. ## math

when I try to solve the equation 9x-5y=4, my answer is y=9/5+4/5. is this correct because I am having trouble trying to do a table of values for this equation.

asked by malia on January 1, 2008
87. ## math

A circle has centre(5,12) and its tangent to the line with equation 2x-y+3=0. Wtite equation of the cirle

asked by donald on December 30, 2016
88. ## Maths

Consider the equation in x: (2k-3)x^2 + (k+1)x - 1 = 0. For what value of k is this a linear equation. I don't understand what the question is asking and I'm so confused. Any help is appreciated.

asked by Lenard on May 14, 2019
89. ## Math

Sketch a graph of the equation y=-x^2 + x + 10 for x=0...x=4 i think that the equation y=-x2+x+10 is a parabola and for the x values that were given am i suppose to plug in?

asked by Anonymous on September 9, 2010
90. ## maths physics chemistry

State the principle on which each of the following is based. (a) the equation of continuity, Av = constant (b) the Bernoulli equation

asked by Joseph on December 29, 2015
91. ## math

When a situation can be modeled by a linear equation, what information do you need in order to find an equation?

asked by Carly on October 29, 2016
92. ## Converting Cartesian Equations to Polar Equations

Convert the Cartesian equation x^2 - y^2 = 16 to a polar equation. r² = 16/cos2è r = -4 r² = 8 help please im stuck between 2 answers.

93. ## math

The x-intercepts of a particular equation are x = p, q. Suggest a possible equation. Quite confused on this question... Any idea? Thanks in advance.

asked by Anonymous on June 29, 2018
94. ## math

When a situation can be modeled by a linear equation, what information do you need in order to find an equation?

asked by vick on July 20, 2017
95. ## math

I need help solving this equation please. Use the qudratic formula to find any x-intercepton the graph of the equation. Y=3x^2+9-1

asked by Sam on April 24, 2013
96. ## Chemistry

Find the product for the equation and then write a balanced equation. Cl2 + FeBr3 -> ?

asked by Zoe on January 15, 2012
97. ## math

solve each equation.write each equation in simplest form 7x/8=21 a.24 b.18.375 c.1.857 d.19

asked by chen on December 2, 2015
98. ## Math

How do I solve this simultaneous equation 3x-2y=5 (1) 2y-5x=9 (2) I managed to find the value of x and that is -7 but I am having problems to substitute it's value in equation (1)

asked by Vince on May 16, 2010
99. ## Math

Julie is solving the equation x2 + 6x + 9 = 0 and notices that the discriminant b2 - 4ac has a value of 0. This tells her that the equation has

asked by Jack on October 23, 2012
100. ## analytic geometry

FINd an equation in x and y that has the same graph as the polar equation r=Î± sin theta, with Î± is not equal to 0.

asked by Anonymous on September 17, 2015