# 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 300
1. ## Algebra 1

Write an equation in standard form of the line that passes through the given points. Can someone check my answers? (2,6)(3,8) -2x+y=2 (7,-3)(4,-1) 4/3x+y=19/3 (3,-8)(5,-9) 1/2x+y=-13/2 (-5,6)(2,-3) 9/7x+y=-3/7 (-3,-1)(6,-8) 7/9x+y=-10/3

asked by Jynessa on November 21, 2013
2. ## Chemistry

1) Determine the value of delta H net for the following equation: SnBr2(s) + TiCl4(l) -> TiBr2(s) + SnCl4(l) I am not sure how to solve this.

asked by Hannah on January 29, 2012
3. ## Math/Trig

Write an equation for a cosine function with an amplitude of 2/3 , a period of pi, and a vertical shift of 2 units up.

asked by Ali on January 4, 2011
4. ## alg2 check

a.)write the equation of the line that has a slope of -2 and a y-int of -6. I don't understand if I use y=mx+b or not.how would I plug this in If im trying to get an answer?

asked by tyneisha on July 18, 2013
5. ## Trigonometry

Which of the following is not a solution of the equation tan squared A =3? (1) -pie/3 (2) 2pie/3 (3) 5pie/6 (4) 120 degrees

asked by Bob on January 29, 2013
6. ## Math

State whether the given equation represents a linear, quadratic, or exponential function. Tell how you decided. y = -8x2 + 4

asked by Tim on January 17, 2010
7. ## chemistry

how to balance this partial equation given below k2cr2o7+h2so4+kI-->k2so4+cr2(so4)3+h2o+I2

asked by xyz on May 12, 2015
8. ## chemistry

how to balance this partial equation given below k2cr2o7+h2so4+kI-->k2so4+cr2(so4)3+h2o+I2

asked by xyz on May 12, 2015
9. ## Algebra

Write an equation for a parabola with a vertex at the origin and a focus at ( -4,0 ). a) š¦ = ā1/4š„2 b) š¦ = ā 1/16x2 c) š„ = ā 1/4y2 d) š„ = ā1/16y2 I think it's A. Any help?

asked by Sandy East Ward on May 25, 2016
10. ## math

Find the x-intercepts of the parabola given by the equation. (If an answer does not exist, enter DNE.) y = 5x2 ā 5x

asked by Anonymous on November 13, 2018
11. ## Math

i have trouble factoring this equation any time x^2 has a number before it i get confused and don't know how to factor how would you solve this -3x^2+5x-2

asked by Anonymous on April 10, 2011
12. ## Physics

If the change in position Dx is related to velocity v (with units of m/s) in the equation Dx = Av, the constant A has which dimension? a. m/s^2 b. m c. s d. m^2 I chose b?

asked by Ashleigh on November 4, 2009
13. ## Chemistry

A Balanced equation to represent the reaction between 1-pentanol and ethanoic acid. (Production of an ester)

asked by Shantel on May 10, 2015
14. ## Calculus

Find the limit of the function as x approaches -3 (2x^2 +4x+1) I'm not sure if you would break it apart using te theorems or direction substitue -3 into the equation?

asked by Me on August 11, 2013
15. ## Math

Using the linear equation y = -3x + 5, complete the table of values (T-Chart) and choose the correct graph. X = -2 Y = _ X = -1 Y = _ X = 0 Y = _ X = 1 Y = _ X = 2 Y = _

asked by Alan on November 19, 2013

Determine the x intercepts, y intercept, equation of the axis of symmetry and vertex for each of the following functions, 1.) f(x)= 3(x-2)^2-6 with zeros of 0.59 and 3.41 2.) g(x)= (x-4)(x+7)

asked by Heaven on June 1, 2016
17. ## chemistry

Examine the unbalanced electrolytic reaction. Li+(aq) + Zn(s) ā Li(s) + Zn2+(aq) How many electrons are transferred in the balanced equation? 4 1 2 3

18. ## Chemistry help

Write a descriptive text and a word equation on how silicon is extracted from earth's crust' .

asked by Maya on January 26, 2013
19. ## Math

Find an equation of aline that is tangent to the curve f(x)+2cos3x and whose slope is a maximum?? Pleasee help!!

asked by Sima on April 11, 2011
20. ## Analytical Chemistry

What is the balanced equation for oxidation of iodide ion by oxygen (O2) that occurs which produces iodine.

asked by kalynn on January 30, 2012
21. ## adolescents and other problems

in the behavioural equation the variable which may be a plus or minus is? a.stimulus b.outcome c.habits d.motivation my answer is a

asked by susue on August 2, 2013
22. ## Trigonometry

The function in the graph has the general equation f(x)=asin(bx+c)+d. Which of the following values are correct? Select all that apply d=-3 C=-1 B=0.5 B=0.5 D=1 A=2 B=2

asked by Micheal on March 7, 2018
23. ## algebra

When using the quadratic formula, why is only necessary to examine the discriminant to determine if the equation only has real number solutions?

asked by jimmy on January 30, 2012
24. ## Pre calculus

1. convert polar equation to rectangular coordinates: r^2=4sin2theta 2. find the coefficient of x^5 in the expansion (x+2)(x+1)^8

asked by Rass on January 18, 2012
25. ## algebra

When using the quadratic formula, why is only necessary to examine the discriminant to determine if the equation only has real number solutions?

asked by jimmy on January 30, 2012
26. ## Trig

use a graphing utility to solve each equation, rounded to 2 decimal places 1. x^2 - 2sin2x = 3x 2. x^2 = x + 3cos2x

asked by KC on September 26, 2007
27. ## math

Write the standard form of the equation of the circle x^2+y^2+4x-2y-20=0. Find the center and radius. How do I do this? pleaaase help.

asked by ayonna on March 26, 2013
28. ## Chemistry!!

how would i do this problem?? Given this equation: 2SO2(g) + O2(g) ---> 2SO3(g) If 50.0 grams of S02 react, what is delta H for the reaction?? how would i do that??

asked by Miley on May 4, 2008
29. ## math

Can someone explain this to me please? Write the equation of the line with x-intercept (ā9, 0) and undefined slope. Here are my options for answers: A) y = ā9 B) x = ā9 C) y = ā9x D) x = 0

asked by Undefined Slope on November 25, 2007
30. ## chem

can u help me write a word equation for the electrolysis of water , and indicate physical states and conditions of the reaction

asked by juan on May 29, 2008
31. ## calculus HELP URGENT

Find the equation of the line through the point (3,4) which cuts from the first quadrant a triangle of minimum area.

asked by Santha on March 16, 2010

Find the equation of the line through the point (3,4) which cuts from the first quadrant a triangle of minimum area.

asked by Santha on March 16, 2010
33. ## math-geometry

we have a test tomorrow and she said that a problem like this is going to be on there how do you do it???? Consider the parabola that passes through the points (2,6)(-1,12) and (0,6) Find the equation and the vertex

asked by janet! on February 24, 2010
34. ## Calculus

PLEASE HELP Find the equation of the line through the point (3,4) which cuts from the first quadrant a triangle of minimum area.

asked by Santha on March 16, 2010
35. ## maths-conic sections

find cartesian equation of a hypeerbola with centre as origin , focus : ( 2, 0 ) and line x = 2 as directrix .

asked by anoynomous on April 3, 2013
36. ## college algebra

Solve the following exponential equation by expressing each side as a power of the same base and then equating exponents. 31-x = 1/27

asked by yan on August 14, 2015
37. ## math

Find all roots of the equation ln(4-x^2)=x correct to 8 decimal places. List all successive approximations.

asked by lucy on April 3, 2013
38. ## Math

For the following equations, write a word problem draw a picture, and find the solution to the equation: 5/12 - 1/3= 1/2 - 2/3=

asked by Anonymous on October 9, 2009
39. ## trig/ellipse equation

Find an equation of an ellipse satisfying the given conditions: Vertices: (-1, -8) and (-1, 4); and the length of the minor axis is 10.

asked by jre on March 6, 2016
40. ## Chemistry

Write a chemical equation representing the second ionization energy for lithium. use e- as the symbol for an electron.

asked by anonymous on April 1, 2013
41. ## Chemistry

Consider the equation A(aq) + 2B(aq) 3C(aq) + 2D(aq). In one experiment, 45.0 mL of 0.050 M A is mixed with 25.0 mL 0.100 M B. At equilibrium the concentration of C is 0.0410 M. Calculate K.

asked by Sana on February 16, 2014
42. ## chemistry

how do I know the ion value of elements on the production side of the equation when balancing with the electron transfer method?

asked by stephanie on November 14, 2007
43. ## algebra 1

which equation models an exponential decay y=1/4x500^x 1/3y=6x100^x y=0.5x8^x y=23x(1/2)^x y=0.004x2^x i think it is d

asked by Anonymous on March 26, 2013
44. ## algebra 1

which equation models an exponential decay y=1/4x500^x 1/3y=6x100^x y=0.5x8^x y=23x(1/2)^x y=0.004x2^x i think it is d

asked by Anonymous on March 26, 2013
45. ## Chemistry

What is the coefficient in front of carbon dioxide when the following equation is balanced? C3H8(l) + O2(g) ā H2O(g) + CO2(g) a. 1 b. 3 c. 5 d. 6

46. ## Algebra

If a is a real number and a cubic equation f(x)=x^3ā12x^2+(a+20)xā2a has a repeated root, what is the sum of all the possible values of a ?

asked by Tony on May 4, 2013
47. ## chemistry

write the net ionic equation of the following reaction: HCl(aq)+NaOH(aq)--> NaCl(aq)+H2O(l)

asked by Sid on January 3, 2012
48. ## calculus

Calculate the equation of the tangent and normal lines for the curve f(x) = tan 2x, at the point where the x-coordinate is: x = Ļ/8.

asked by Bonaventutre on March 27, 2013
49. ## Algebra

Find the missing coordinate to complete the ordered-pair solution to the given linear equation. 2xā3y=3 (a) (ā3, ) (b) ( ,1)

asked by Dee365 on April 1, 2016
50. ## Science

What is the written equation for the oxidation reaction of hydrogen chloride 4hcl+o2=2cl2+2h2o

asked by Anonymous on May 3, 2013
51. ## math

The price p(t) of a share at a time t satisfi es the equation p + t = 1 + e^-p sin(pi*t). Justify if p(t) is increasing or decreasing at t = 0.

asked by dayyann on May 3, 2013
52. ## Algebra 1

3r-5s=-35 2r-5s=-30 multiply equation 2 by -1 then add the two equations. s will cancel and you can solve for r. Post your work if you need further assistance.

asked by Candice on January 18, 2007
53. ## Chemistry

What is the wavelenght of radiation of 1.50X1013Hz? The wave equation will find this: frequency*wavelength=speedoflight

asked by Anonymous on October 24, 2006
54. ## Calculus

find the equation of a line tangent to the graph of y = x / (square root of 5x^s +4), at x = 1. am i suppose to take the derivative? if so, then what else?

asked by dave on November 13, 2007
55. ## Math

Write the function f(x)= 2x^2-4x+7 in standard form, then identify the vertex and the equation for the axis of symmetry.

asked by John on May 7, 2008
56. ## Chemistry

Write the net ionic equation for the following reaction : Na3SO4(aq) + Ba(NO3)2(aq) ā> BaSO4 (s) + 2 NaNO3(aq)

asked by Lauren on December 10, 2017
57. ## calculus

Does any tangent to the curve y=ĀĆ£x cross the x-axis at x= -1? If so, find an equation for the line and the point of tangency. If not, why not?

asked by natalia on March 1, 2010
58. ## Government secondry school gwagwalada

Consider the equation N2(g)+3NH2(g)---2NH3.what is the needed volume of nitrogen to react with 15cm3 of hydrogen?

asked by Abdullahi on April 10, 2013
59. ## Chemistry 1

Does anyone know what websites are good to use for Chemical Reactions and balancing equation. I have a test tomorrow, and i need to really practice those. Thanks

asked by Stephanie on May 13, 2008
60. ## equation on tangent of a curve need help

find the equation of a tangent of a curve at point(1,3) x^2.y^3+y^2.x^4+4x^2-14=0,i tried differentiate it n also applying this formula y=mx+b.bt i gt confuse

asked by edward on August 27, 2015
61. ## Maths

Find the equation of the line parallel to y-axis and drawn through the point of intersection of lines x-7y+5=0 and 3x+y=0?

asked by Via on September 16, 2018
62. ## Math

A set of n = 15 pairs of X and Y scores has SSX = 10, SSY = 40, and SP = 30. What is the slope for the regression equation for predicting Y from X?ā 10/30 10/40 40/10 30/10

asked by Annie on December 15, 2017
63. ## chemistry

write a balanced formula equation for the reaction between sulfuric acid and calcium metal

asked by trista on May 13, 2008
64. ## Quick Math

Solve the following equation 5(z-4)-z=4z-20 4 -4 Infinitely many solutions No solution I had found that the answer was 0=0, but what does that mean? Iām confused. Thank you in advance.

asked by Anonymous on September 20, 2018
65. ## Algebra

Suppose that Y varies directly with X, and Y=4 when X=16 (a) Write a direct variation equation that relates X and Y (b) Find Y when X=3

asked by Anonymous on March 13, 2016
66. ## Trigonometry

For all values of x for which the expressions are defined, prove the following equation identity 2/sec = 2-2 sin^2 x/ cos x

asked by Anna on March 17, 2016
67. ## Mathmatics

I need help. I have no clue about how to solve this problem. Can someone go through it. Find the sope of the tangent line to the graph of the equation y=x^2(x-3) at x=-1 Thanks for the help.

asked by Neil on May 14, 2008
68. ## Math/ Calculus

Given an initial guess of x1 = 1, use the Newton-Raphson Method to fi nd the second approximation x = x2 of the solution of the equation: sqrt(x+3)=x

asked by Angela on April 16, 2013
69. ## algebra

factorise the left hand side of the equation xxx+7xx-21x-27=0 and the roots are

asked by rinku on April 9, 2013
70. ## maths-

A and B are two different values of C lying between 0 and 360 which satisfy the equation (p cosC + q sinC=r) then prove that cos(A+B)=(p^2- q^2)/(p^2+ q^2)

asked by anoynomous on April 9, 2013
71. ## CALC HELP!

Find an equation of the tangent line to the graph of y= x+ (4/x) at the point (4,5). I can't figure out the answer to this. It's supposed to be y=3/4x +2 but I can't get that.

asked by em on March 9, 2016

insert parentheses to make each statement true: 3x9+18+36/9=33 No way i do this do i get 33. One way I get 31.5 the other way I get 9. I don't think this is a good equation to =33.

asked by reid on September 14, 2015
73. ## chemistry

If your equation of the line for you SAM analysis is y=1x+0.3980, what is the concentration of Mg in ppm in your unknown solution?

asked by M on April 5, 2013
74. ## Calculus

An equation of the line tangent to the graph of y=(2x+3)/(3x-2) at the point (1,5) is...do I take the derivative of y=(2x+3)/(3x-2) to find the slope and then plug that into y-5=m(x-1)?

asked by Anonymous on November 18, 2007
75. ## math, correction

Write the equation of the line with given slope and y-intercept. Then graph each line using the slope and y-intercept. Problem #1: Slope: -2; y-intercept: (0,4) my answer: The points I used to graph were: (0, 4) and (2, 0), the equation is: Y= -2x + 4

asked by jasmine20 on January 16, 2007
76. ## math_pre-calc

Find the equation of a circle that passes through the points (6,3) ans (-4,-3) and whose center lies on the line y=2x-7

asked by Lenna on March 11, 2010
77. ## Algebra II

Solve the logarithmic equation. Round to the nearest ten-thousandth if necessary. log 8x^3=4 Can someone walk me through this?

asked by Nickie on December 13, 2017
78. ## Chemistry

What is a balance equation for sulphuric acid and copper oxide and please explain how you got the correct answer.

asked by Jose-Ann on March 11, 2010
79. ## chemistry

State one method of preparing oxygen in the lab and wrte a balanced equation for the reaction

asked by +2347034420247 on March 11, 2010
80. ## statistics

can someone please tell me what the equation is to find the sum of squares...im looking online but everything is sohard to understand and all the symbols are confusing...?? thank you!

asked by steph on May 8, 2008
81. ## Math

Find an equationof the line having the given slope and containing the given point. Express your answer in the form y=B or y=mx+b M=0,(0,5) The equation is y=

asked by Pam on February 10, 2014
82. ## algebral

What is the electromagnetic flux coming from the surface of a 5000K blackbody? I am supposed to use maxwells equation.

asked by james on March 19, 2011
83. ## algebra

graph the equation and find the y-intercept. 2y+5x=-6 My question is do I add -5x to both sides first?? how do I start this problem?

asked by Anonymous on October 7, 2009
84. ## algebra 2

it gives me long dry headaches. Solve the value equation 2/3x - 5/ - 8=8 I know I have to add that -8 to the right side of the equal sign.

asked by bubblegum on September 3, 2015
85. ## math

express as a function. c is a positive number ln y= 1n x + 1n C Make both sides of the equation an exponent of e. Remember that x^a * x^b = x^(a+b)

asked by Denise on January 10, 2007
86. ## Math, Physics, and Science

What are the Fundamental Laws of Biology? How is it so different to the cultures of science itself? Explain in an equation or in a matter of writing.

asked by Stanley Stanford on February 6, 2018
87. ## Algebra II Part 2

Use a graphing calculator to solve the equation -3 cos t=1 in the interval from 0 to 2p.Round to the nearest hundredth

asked by Karen on May 19, 2013
88. ## Pre-Calculus

Find the inverse of the following quadratic equation. Hint: Complete the square first. y= 2xĀ²+16x-5

asked by AwesomeGuy on March 7, 2013
89. ## Algebra

Im not even sure what this is called, teacher call's it Multi-Step Equation. What are the steps to solve this problem 5X=X-12 AND X/3+5=14

asked by Denver on October 30, 2007
90. ## Math

Hello i need some help writing a pseudo code equation. It is pretty basic. Can anyone help? Just want to know before i write the entire problem out. Thanks

asked by Ti on October 31, 2007
91. ## trig

Find a polar equation of this conic with focus at the pole and the given eccentricity and directrix. e=2, r cos X =-1

asked by mindy on April 29, 2008
92. ## anonymous

what is the balance equation if lactic acid is added with sodium biacarbonate and potassium bicarbonate

asked by Anonymous on March 16, 2011

I am desperately trying to help my 5th grader figure out how many ways can we make this equation true 24 x 18 = 432 x

asked by mom on March 29, 2011
94. ## Algebra

Use the following table of values to find the equation of the trend line for the scatter plot. x 1 2 3 4 5 6 7 8 y 1.5/2.6/2.2/3 2.9/4.6/ 4.2/5 A.y = ā2x + 1 B.y = 0.5x + 1 C.y = x + 2 D.y = 0.5x + 3 I think it is B...? I am not positive

asked by Cassie on March 12, 2013
95. ## Algebra

What were the headlines after a 3 foot 10 inch fortuneteller escaped from jail? Its an inequality equation like 3(2x + 5)=39 and 11(4-6y) + 5(13y+ 1)=9. Please Help Me with this!

asked by Anonymous on April 14, 2016
96. ## Calc.

For the function Ę(x) = x^3 - 8x + 3, calculate where a = 5 and h = 2. Simplify before substitution (the simplifying is where I am having problems...not sure if my answer is right). Thanks. Using the limits equation.

asked by Derek on July 14, 2008
97. ## chem

what is the theoretical yield for the balanced equation Ti+2F2= TiF4 if the mass is 0.227 Ti, 0.296 F2?

asked by laurie on April 29, 2008
98. ## Chemistry (Thermodynamics)

Write a balanced equation for the complete combustion of 1 mole of ethyne gas (C2H2) ?

asked by Amanda on February 27, 2014
99. ## Algebra

Find the missing coordinate to complate the ordered-pair solution to the given linear equation. 9y+7x=-63 (a) (-9,0) (b) (? ,7)

asked by 1234 on March 6, 2013