# 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 405
1. ## Chemistry

Hey there! I have these two questions for my chemistry class, and I am a little confused on how I should go about solving them. If someone could give me the steps necessary to solve these problems I would be most appreciative. 1.) p-Toluenesulfinic acid

asked by Ka_Chin on February 14, 2016
2. ## physics

A pinball machine launches a 139 g ball with a spring-driven plunger. The game board is inclined at 8 ◦ above the horizontal. Assume: The plunger’s mass and frictional effects are negligible. The acceleration of gravity is 9.8 m/s2 Find the force

asked by Anonymous on December 7, 2015
3. ## english-siddhartha

i have answered the other questions that i was requested to do but theses ones i cant figure them out can anyone help please? Chapter 5 Kamala What changes do we see in Siddhartha in chapter 5? ---3 quotes that show this change? Chapter 6 Amongst the

4. ## calculus

Use Newton's method to approximate a root of the equation 3sin(x)=x as follows. Let x1=1 be the initial approximation. The second approximation x2 is and the third approximation x3 is for x2 I got -1.454 which is right but I can't get x3

asked by HELLLLLPPPPP on September 8, 2010

i need help figuring out this question! :) write a equation for this sequence. then find the 100th term. term number 1 2 3 4 term 6 10 14 18

asked by Rebekka on October 2, 2007
6. ## MATH.

I need help to solve this Equation using the Scientific Calculator Z= Square Root (47 Ohm)2 + (100 Ohm)2= 110 Ohm.

asked by UNKNOWN. on June 3, 2010
7. ## math

a student soved the equation x/+5=1 without showing all the work. the student's solution is incorrect. what error did the student make?

asked by taylor on February 8, 2012
8. ## Algebra 1

Find three consecutive even numbers such that the difference between 3 times the first number and twice the second number is 1/3 the third number. also, my teacher told me to use an equation.

asked by NEED HELP NOW!! on February 22, 2013
9. ## calculus

Use Newton's method to approximate a root of the equation 3sin(x)=x as follows. Let x1=1 be the initial approximation. The second approximation x2 is and the third approximation x3 is I got x2=-1.454 but can't get x3 :(

asked by HELLLLLPPPPPPP on September 8, 2010
10. ## math

Okay. so say their is a list of numbers: x y 0 3 1 5 2 7 3 9 4 11 I know how to answer a question like "use an equation to figure out Y when X is..." but how do you figure do " figure out X when Y is" ? I konw that the formula is y=mx+b but i don't know

asked by Dawn on May 26, 2009
11. ## chemistry- thank you

If the ÄH of reaction for the following 2ZnS (s) + O 2(g) = 2ZnO (s) + 2S (s) is -290 kJ, then what is the ÄH of reaction for the following reaction: ZnO (s) + S (s) = ZnS (s) + 1/2O 2(g)? Would i flip the first equation? then after that i am lost

asked by nalleli on October 17, 2010
12. ## geo

A line contains the points (8, 9) and (–12, –7). Using point-slope form, write the equation of the line that is parallel to the given line and that passes through (–5, –15).

asked by me on August 7, 2014
13. ## Math

Find an equation for the hyperbola. vertices:(2,3)(2,-3) Foci:(2,5)(2,-5) I used the midpoint formula to find the center and I came up with (2,0). I just don't know how to find a and b.

14. ## calculus ( Is there a simpler way to get answer?)

Given the functions: f(x) = x^2 - 1, g(x) = x/x + 2 Why is the followig the equation of (g o f)(x) THe answer is x^2 - 1 / x^2 + 1 This is how I got the answer with someone's help: Assume you forgot parenthese g(x) = x / (x + 2) g = x^2 - 1) / (x^2 - 1 +

asked by Erika on September 28, 2008
15. ## MATH

the square of a number is equal to the sum of 21 and 4 times the number. find the number WHATS THE EQUATION (AM CONFUSED ?)

asked by LISA on January 4, 2012
16. ## chemistry

how to balance this equation by using electron ion method 1. C2O4(-2 charge)+ MnO4(- charge) + H(+)-----> CO2 +Mn(+2 charge)

asked by humaira on April 17, 2009
17. ## Calculus

Determine the equation of the line described by the given information. a) slope -2/3, passing through (0,6) b) passing through points (2,7) and (6,11) c) parallel to y=4x-6 passing through point (2,6)

asked by Jake on February 8, 2012
18. ## calculus

Find an equation of the line that is tangent to the graph f and parallel to the given line Function: f(x)= 1/ square root of x Line: x+2y-6=0

asked by Anonymous on September 26, 2012
19. ## substitution and elimination methods

Can someone please help explain this, my notes aren't helping me much. Given the following system of linear equations: {x-4y=20 -3x+4y=-12 The solution to the system is: The system is: The equation is: Please help

asked by Carlos on April 7, 2017
20. ## trig

Find all values of [theta] in the interval 0°

asked by Libby on May 23, 2010
21. ## algebra

Find the standard form for the equation of a circle (x−h)^2+(y−k)^2=r^2 with a diameter that has endpoints (−8,−10) and (5,−4). Find the h= -1.5 k= -7 r=? I do not understand how to find the radius.

asked by Heather on September 14, 2014
22. ## Chemistry

My question talks about a buffer with HA and NaA, where NaA is the sodium salt of the acid. What does the equation for this look like? HA + NaA --> H+ + NaA2 ??

asked by Dwayne on October 27, 2016
23. ## Math

Determine if the relationship represented in the table is linear. If it is linear, write an equation. x|-2 5 7 10 12 20 y| 3 0 2 5 7 15 My answer is: Linear; y=x+ -5 Is this correct? Thanks.

asked by B.B. on September 20, 2009
24. ## maths

find the general solution of the following first order differential equation. dx/d(theta)=(xtan(theta))-(cos(theta))

asked by Markus on October 26, 2011
25. ## Pre-Algebra

a student solved the equation x/4 +5=1 without showing all the work. the student's solution is incorrect. what error did the student make?

asked by taylor on February 8, 2012
26. ## Math

10x+5y=500 What is the slope? Do I have to change it to slope intercept form first? Or is there a way to find slope with keeping that equation

asked by Anonymous on December 6, 2014
27. ## Math

For questions 1 and 2 choose the equation or proportion that you can use to solve the problem: What number is 73% of 215? A.215 = 0.73 B.n = 0.73 × 215 C.0.73 = nx215

asked by Johnny McKarron is cool on December 17, 2015
28. ## math

Solve each equation and leave the answer in simplest radical form. x squared+6x-9=0 n squared-2n+2=5 3y squared-4y-2=0 I never learned how to do this. Can you help me?

asked by robert on December 10, 2007
29. ## Alg II/Trig

A parabola has a vertex at (0,0); a horizontal axis; and the point (12,6) is on the parabola. Write the equation of the parabola in standard form.

asked by Sara on February 22, 2009
30. ## Trigonometry

Solve each equation for theta, giving a general formula for all of the solutions: a. tan(theta)=-1 b. sin(theta/2)=1/2

asked by Alex on March 28, 2015
31. ## math

Find an equation of the line that (a) has the same y-intercept as the line y+2x-12=0 and (b) is parallel to the line 5x+12y=8 Write your answer in the form y=mx+b

asked by anonymous on April 27, 2016
32. ## Math

What would be the rate if the Equation is y=2x+10 and x is days and y is height in ft. I think I heard somewhere that the rate is the coefficient so would the rate just be 2 ft per day? I was hesitant on this because of the y intercept.

asked by Sage R. on February 22, 2016
33. ## English

This question is about Shakespeare's "Othello." Any help would be appreciated, thank you in advanced. The handkerchief is a key motif throughout “Othello" Why do you think Cassio wants Bianca to replicate it? So, what I got from this and the book was

asked by anonymous on August 16, 2018
34. ## chemistry

wen determining the formula for a compound its important to no the valance no of each element suppose element a has a valance no of 3 an element b has a valence no of 2 if the two elements combine then wen writing the formula for the resulting compound wat

asked by andrea on May 12, 2008
35. ## english

Can someone please give me some SIMPLE (easy for me to understand) meanings of the following poetry terms? because I am quite confused with the terms...especially alliteration, assonance,consonance, and rhyme. How can I identify them? 1. Poetry 2.

asked by anonymous on April 30, 2009
36. ## Math

The internal and external radii are estimated to be 6 cm and 8 cm respectively, to the nearest whole number. The height of the cylinder is exactly 14 cm. (a) Determine the exact values for internal and external radii which will give maximum volume of the

asked by Kd on November 7, 2018
37. ## Chemistry 32

HCI (aq) is a strong acid. suppose you dissolved 0.0365 grams of HCI in water to give a final volume of 10.0 mL. what is the pH of this final solution. The molar mass of HCU is 36.5g /mole and the molar mass of water is 18.0g/mole

asked by jen on March 12, 2014
38. ## Algebra

a round trip flight of 1037.5 miles takes 7 1/2 hours. The part of the flight with the wind takes 1 1/2 less than the other part of the trip. Find the speed of the plane in still air and the speed of the wind. I have no idea how to do, can u give me a lead

asked by Niruuuu on January 19, 2015
39. ## Health

The U.S. government categorizes body weight status as ________. A. Underweight, healthy weight, overweight, obese B. Healthy, unhealthy C. Underweight, healthy, overweight D. Thin, healthy, heavy, obese I HAVE NO CLUE PLEASE HELP OR GIVE ME HINTS! :\$

asked by Aya on July 28, 2012
40. ## math

a)predict th erelationship between the graph of y=x^4+x^3 and the graph of y=[(x+3)^4+(x+3)^3]-1 b)determine the x-intercepts of each function in part aw. round your answer to 1 decimal place c)give the approximate domain and range of each functin in part

asked by justme on September 24, 2011
41. ## Math

If the width of a window is (x+7) inches and the length is (x+9) inches, then give the expression which represents the area of the window use the formula area=base.Height. if ×=8 inches, find the area of the window using the expression you found in part a

asked by Jared on May 13, 2016
42. ## Science

Give some examples of artifacts that are used to determine the geological history of the Earth, as well as how its life forms have changed over time. Is the question given and I don't really know any artifacts that are used for the geological history of

asked by Sam on January 30, 2018
43. ## Calculus

A voltage V across a resistance R generates a current I=VR. If a constant voltage of 4 volts is put across a resistance that is increasing at a rate of 0.3 ohms per second when the resistance is 4 ohms, at what rate is the current changing? (Give units.)

asked by Samuel on March 1, 2010
44. ## MATH

Give the number whose hundreds place is one-third of the greatest one-digit number, the tens place is twice the hundreds place divided by 2, and the three digits in the thousands period is the product of the digits in the units period.

asked by Joel on June 23, 2013
45. ## Math

A voltage V across a resistance R generates a current I=V/R. If a constant voltage of 17 volts is put across a resistance that is increasing at a rate of 0.3 ohms per second when the resistance is 7 ohms, at what rate is the current changing? (Give units.)

asked by Ammar on October 16, 2018
46. ## Calc

A voltage V across a resistance R generates a current I=V/R. If a constant voltage of 16 volts is put across a resistance that is increasing at a rate of 0.2 ohms per second when the resistance is 6 ohms, at what rate is the current changing? (Give units.)

asked by Alisa on March 31, 2011
47. ## rates and unit rates

Water fl owing from a faucet can fill 1/4 of a tank in 3 minutes. a) How long does it take to fi ll the tank completely with water? b) How long will it take to fi ll 6 similar tanks completely with water? Give your answer in hours and minutes.

48. ## Math

3 Questions 1. Explain what "any multiple of 9 returns to 9" means. The ancient Chinese found the number 9 magical because of this. 2. The dry cleaners raised the price of a sports coat from \$ 4 to \$5. The same percent increase was applied to cleaning a

asked by Anonymous on October 23, 2007
49. ## Physics

You are working as a summer intern for the Illinois Department of Natural Resources (DNR) and are assigned to some initial work on water resources project. The department will be overseeing the construction of a dam to create a large fresh water lake that

asked by jesse on May 1, 2010
50. ## Algebra

I have two questions... 1.Lenear system...If you are painting the white lines around the perimeter of a tennis court. You measure and find that the perimeter is 228ft and the lenght is 42ft longer that the width...I need to write a linear system equation

asked by Mike 50 on March 12, 2009
51. ## Economics

For each of the following products, write a few sentences answering the following questions: • Is price discrimination of any sort feasible? • If price discrimination is feasible, which of these pricing approaches would you consider using: market

asked by Leonardo Yang on November 12, 2012
52. ## accounting

As a team, prepare the income statement of Maltbee Lawn Service for the four months May through August. Prepare the classified balance sheet of Maltbee Lawn Service at August 31. Please add your file. Next, as a small group discuss the following. Was

asked by meka on August 3, 2009
53. ## Physics

A particle P travels with constant speed in a circle of radius 8.6 m and completes one revolution in 12.0 s. The particle passes through O at t = 0 s. What is the magnitude of the average velocity during the interval from t = 5.4 s and t = 9.7 s? What is

asked by Anonymous on September 22, 2009
54. ## Math

In each case, consider what you know about the distribution and then explain why you would expect it to be or not to be normally distributed. I am really having a hard time understanding this. Any help would be great. a. The wealth of the parents of

asked by Jennifer on January 14, 2010
55. ## math

In each case, consider what you know about the distribution and then explain why you would expect it to be or not to be normally distributed. a. The wealth of the parents of students attending your school b. The values that a group of fourth-grade students

asked by Anonymous on August 11, 2009
56. ## chid psychology

which of the following is not true of the meta-analytical finding of reseach theory with children? A. changes achieved by children reciving treatment are greater than those for children not receiving treatment b. treatment effects are larger for problems

asked by alicia on April 30, 2011
57. ## english

Can someone explain to me what a sub claim is and give me an example All I can find is that it is a part, or claim on an argument. Example: Bob Pursley is growing senile.....arguement He eats unpeeled bananas sub claim He does not look back when

asked by jessica on July 17, 2006
58. ## PHYSICS

A 60.8-kg skateboarder starts out with a speed of 1.84 m/s. He does 90.8 J of work on himself by pushing with his feet against the ground. In addition, friction does -278 J of work on him. In both cases, the forces doing the work are non-conservative. The

asked by KS on April 22, 2015
59. ## Math

x=-y+3 5x-y=-2 Solve using Elimination I already solved the equation using Substitution, Graphing, and a table I just need a little more help on Elimination. I know that in Elimination they have to be in the same form so I put it in slope intercept which

asked by M on January 20, 2015
60. ## Chemistry

Hydrogen gas, , reacts with nitrogen gas, , to form ammonia gas, , according to the equation 3H2+N2-2NH3 How many grams of can be produced from 2.90 of ?

asked by Rose on October 5, 2009
61. ## physics

A plane wave is represented by the equation y=4si(230pit+0.85pix)M. find (a)the frequency (b)velocity and Wave length of the wave

asked by pauline on July 10, 2017
62. ## Astronomy

Imagine that you have just discovered a strange object. This object is a distance D away, has a redshift z, and you measure a flux for it f. Derive an equation for the luminosity L of this object.

asked by qwerty on April 28, 2014
63. ## AP Chem ---

If a radioactive nucleus alpha decays to yield a sodium24 nucleus in 14.8 hours, what was the identity of the original nucleus? Nuclear equation?

asked by Dani on May 22, 2015
64. ## chemistry

What equation will you use to calculate the heat of fusion of ice? The specific heat of water is 4.184 J/(gx°C), and the heat capacity of your calorimeter is 1.0x10^1 J/°C.

asked by Stephanie on October 1, 2013
65. ## geometry

okay i have a few question... 1.Find the equation of a line through the points (-2, -5) and (-7, -5) 2. the three lengths 4, 6, 8, form a.not a triangle b.a right triangle c.an acute triangle d an obtuse triangel

asked by Hannah on March 25, 2008
66. ## Algerbra 2

alex buys a home for 118000. her home increases in value 9% each year. write an equation that models this and find the value of the home after 6 years?

asked by BMO on May 20, 2014
67. ## Precalc

A hyperbola has this Cartesian equation: -((x-2)/5)^2 + ((y+1)/3)^2 = 1 A. Find direction in which it opens. Horizontal? B. Find the coordinates of the center. I think it's (-2,1) or (1,-2)? C. Find the slopes of the asymptotes: m=+- ?

asked by Grace on January 20, 2012
68. ## Algebra I

to determine whether a given number is a solution of an equation. Problem: Is 5 a solution of 10x-xto the 2nd power = 3x-10? my work: 10(5)-25=25 and 50-25=25 so x is not a solution. right or wrong? Im new at this

asked by Nancy on September 9, 2014
69. ## chemistry

25 ml HCl x 1L/1000mL x .200HCl/1L = .005 mol HCl. Using the balanced equation from this, how many moles of NaOh will you need to completely neutralize the HCl?

asked by Zac on November 10, 2010
70. ## math

A rubber ball is dropped from an unknown height. It bounces back to 60% of its original height. Write an equation you can use to find height.

asked by Dene' on October 28, 2012
71. ## Algebra

Can someone tell me how they got the answer? Find a polynomial equation with real coefficients that has the given roots. 4i, sqrt5 my answer: x^4-22x^2+80=0 correct answer: x^4+11x^2-80=0

asked by Joey on April 5, 2008
72. ## math

I'm having trouble trying to identify which method is best to use for graphing when faced with an equation. Are there certain things that I need to look out for that would indicate if it were best to use the table of values, slope-intercept method, or the

asked by sarah on September 17, 2008

Jennifer figures that she uses 2 pens per month. She started the year with 10 pens. How do I write the equation that represents the number of pens, y, she will have after x months.

asked by Colb on April 6, 2014
74. ## math

find the equation (in slope intercept form) of the line with the given slope that passes through the point with the given coordinates slope:-5/8, ordered pair (0,1)

asked by jerson on February 23, 2010
75. ## Geometry

A sphere consists of all the points that are 5 units from its center (2, 3,−6). Write an equation that describes this sphere. Does the sphere intersect the xy-plane? Explain.

asked by Sarah on April 15, 2010
76. ## Pre Calc 12

Four consecutive integers have a product of 360 Find the integers by writing a plynomial equation that represents the integers and then solving algebraically.

asked by Ellen on December 26, 2012
77. ## GEOMETRY

Two circles with radii a and b touch each other externally . Let c be the radius of a circle which touches these two circles as well as their common tangent to the two circles . Then relate a,b and c through an equation

asked by PRANAV on March 15, 2015
78. ## math

shinta notice that in her piggy bank she has 60 coins all of which are \$1 or \$2 pieces. She finds that the value of the coins is \$92. Let x be the number of \$1 coins she has, make an equation on find x.

asked by Anonymous on May 13, 2017
79. ## algebra

HELP!!!!!!!!!!!!! write equation of a polynomial function with the given characteristics. Leading coefficient is 1 or -1 crosses the x axis at -2,3, and 4 touches the x axis at 0 lies above the x axis between -2 and 0

asked by Destiny on October 21, 2008
80. ## geometry

Circle O is defined by the equation x2 + (y - 2)2 = 25. Plot the center of Circle O and type in the coordinates of one point with integral values that lies on Circle O.

asked by sara on August 5, 2012
81. ## MATH

Alexis separated her pictures into 3 piles. Each pile contained 9 pictures. How many pictures did she have in all? Write and solve equation. Answer to my problem: 27=9p p=3

asked by Nichelle on January 15, 2015
82. ## Chemistry

For the equation below, if 58.6 grams of Al were to react with 540 grams of H2SO4, how many grams of H2 would be produced? 2Al+3H2SO4--->1Al2(SO4)3+3H2

asked by Eva on February 2, 2011
83. ## Algebra

Simplify (2xy^2+3)((2xy^2)^2-(2xy^2)(3)+(3)^2) This reminds me of (U+a)(U^2- aU + a^2). When mulipltiplied out, one gets a cubic equation. Do you remember the formula for factoring the sum of two cubes? a^3+b^3= ????

asked by Juri on August 9, 2007
84. ## math

A printer holds 500 sheets of paper. After printing it held 210 sheets. Which equation can be used to find how many sheets were printed?

asked by Anonymous on November 22, 2013
85. ## algebra

find an equivalent equation with the given denominator 7/b= ?/bsquared the expression that is equivilent to 7/b is ? if b is squared wouldn't the 7 also have to be squared to be equivilant? 7/b = 49/b squared? Am I correct? Thanks

asked by Amie on November 20, 2009
86. ## Algebraic

Determine the roots of the quadratic equation by completing the square. Solve for exact solutions and approximate solutions. Check your solutions. Y=x2-6x-12

asked by rian on March 29, 2016
87. ## Math

I tried again with another question: What percent of 62 is 58? Use the percent equation (which is part=percent times whole) 58=62x Divide 62 on both sides. I rounded to the nearest tenth and got 93.6%

asked by Emma on January 28, 2016
88. ## Calculus

Write an equation for a graph obtained by vertically shifting the graph of y = x^2 + 10 downward by 35 units, followed by stretching the resulting graph by a factor of 19.6.

asked by Jessie on January 28, 2013
89. ## macroenconomics

Between 1968 and 1980, the US economy experienced a slowdown in productivity growth. However, since the mid 1980s, the economy has experienced increases in the growth rate in productivity. Can you give reasons why US productivity growth started to increase

asked by Ismael on March 27, 2010
90. ## Spanish- SraJMcGin please recheck

I'm not sure what you meant by correcting this sentence--Thank you for any further explanation you can give-- 3. Tocar el piano es______tocar la guitarra. (+bueno) Tocar el piano es mejor que tocar la guitarra. You said in an earlier post: mejor

asked by Allie on November 2, 2011
91. ## i

Guns aren’t necessary. Guns endanger people. They give people confidence which leads them to do dangerous things they wouldn’t otherwise do. They also make violence more lethal than it would be with other weapons. True or False: “Guns endanger

asked by christopher on June 12, 2015
92. ## physics

Ten , one rupees coin are put on the top at of each other on a table. Each coin has a mass 'm'. Give the magnitude and direction of - (1)- The force of 7th coin (counted from bottom) due to all coins on its top. (2)- The force of 7th coin by 8th coin. (3)-

asked by me on October 14, 2014
93. ## Macroeconomics

Between 1968 and 1980, the US economy experienced a slowdown in productivity growth. However, since the mid 1980s, economy has experienced increased in the growth rate in productivity. Can you give reasons why US productivity growth started to increase

asked by Sara on June 14, 2010
94. ## Geography

Whereas reapportionment adjusts the amount of political representation give to a certain geographical area, redistricting adjusts A) country, state and/or county boundaries. B) population size. C) the gerrymander. D) Federal lands. E) the geographical

asked by Elizabeth on March 26, 2016
95. ## Macroeconomics

Between 1968 and 1980, the US economy experienced a slowdown in productivity growth. However, since the mid 1980s, the economy has experienced increases in the growth rate in productivity. Can you give reasons why US productivity growth started to increase

asked by Sara on July 6, 2008
96. ## Spanish 1

The directions on this question say, "Usando los verbos de la lista, dé el mandato formal que mejor completa cada oración." My choices to choose from are: dar estar ir ser The question is: ________muchas atenciones a los invitados. I thought it was dar,

asked by Mary on December 8, 2011
97. ## math

a liscence plate for a car must consist of a letter followed by two numbers. Each letter mus be an R, U or N. Each number must be a 2 or 6. Repetition of digits is permitted. Use the counting principle to determine the number of points in the sample.

asked by Joyce on June 12, 2011

For the book, The Five People You Meet in Heaven, I have to answer this question: Q- 1. SETTING: give the time, place, and lenghth of the story. A- time: from Sunday to Friday; from the 1920s to a little before present-day; it begins at the end (Eddie's

asked by Anonymous on August 24, 2007
99. ## Math

The population (in millions) and the violent crime rate (per 1000) were recorded for 10 metropolitan areas. The data are shown in the following table. Do these data provide evidence to reject the null hypothesis that ƒÏ = 0 in favor of ƒÏ ‚ 0 at

asked by Tracy on June 27, 2013
100. ## physics

Which of the following is a unit of temperature? celsius degree joule (my choice) kilogram calorie My first choice is joules and then maybe celsius but not real sure. Can someone please help? My other question is using newtons second law of motion if the

asked by lilman on May 6, 2012