Please help find the rational roots of f(x)=4x^4 - 3x^3 + 2x^2 +x - 3 another is f(x)=-3x^3 - 2x^2 + x - 1 I tried but still confuse please help really really need help Thank you very much!

143,398 results, page 44

1. Chem AP help!

A zinc-copper battery is constructed as follows at 25°C: Zn | Zn2+(0.15 M) || Cu2+(1.70 M) | Cu The mass of each electrode is 150. g. The cell potential when the cell is first attached is 1.13V How long can this battery deliver a current of 5.00 A before it goes dead? I tried...
2. writeacher- religious education again!

sorry to be a pain and ask for help again . i am still struggling with 3 facts about the anglican church, 3 facts about baptist church , 3 facts about the orthodox church. the only thing i have found is that Anglican means `of England` ive tried what you sugested but no luck ...
3. Math

Thanks in advance, these problems have been stumping me. Please include answers though, I have tried to work it out, but need answers to see where I am going wrong/where I need to go. 1. Determine all solutions for X^4+2-3i 2. Forces of 60 and 100 pounds have a resultant force...
4. geometry

The skipper of a boat knows that the water is too shallow to bring his boat inside a "danger semicircle" that goes from lighthouse to lighthouse. How can the angle between his sightings of the two lighthouses help him decide when he is entering the danger zone? How can I ...
5. MATHS

A three-tonne truck is allowed to have a gross mass (when fully loaded) of 7.5 tonnes. If it is carrying 0.5t of sand, 1.25t of brick and 4 bags of cement each weighing 40kg, what is the maximum extra mass which can still be placed on the truck before it is over-loaded? My ...
6. algebra

Im begging! please someone teach me how to answer this! when 3 times a number is added to the square of a number the result is ten find the number. I don't know where to start but please teach me or tell me the process to answer this,even just a process. I can answer this if ...
7. Math

Which of these is an irrational number. A. √150 B. √441 C. √200 D. √250 Ok I worked it out like this √150= 12.24 (12) √441= 21.07 (21) √200= 14.14 (14) √250= 15.81 (16) Ok I can't figure this out. What exactly does rational and irrational mean I'm getting so ...
8. Physics/Math

A certain string can withstand a maximum tension of 43 N without breaking. A child ties a 0.37 kg stone to one end and, holding the other end, whirls the stone in a vertical circle of radius 0.91 m, slowly increasing the speed until the string breaks. Where is the stone on its...
9. Physics

A particular steel guitar string has mass per unit length of 1.79 g/m. and tension of 61.9 N. For the wave speed to be increased by 1.9%, how much should the tension be changed? I tried increasing the wave speed (186 m/s) by 1.9%, plug that into v=sqrt(T/linear mass density), ...
10. Chemistry

A reaction has a standard free-energy change of –10.30 kJ mol–1 (–2.462 kcal mol–1). Calculate the equilibrium constant at 25ºC.? This is what I've done so far.. ∆Gº= -2.3 RT + log (K) -10.31 kJ = -2.3 (.0083145)(298) + log K -10.31 kJ = -2.3 (2.48) log K log K...
11. math

An executive committee of three is selected from a group of ten. Which expression best describes the number of combinations? These are my choices. I have to have one of these as the answer. I am stuck. My answer was B. 10!, but I am still not sure. Can anyone help me please? A...
12. Algebra

Solve the equation w=Cr^-2 for r. Is this right? w/C=r^-2 r=sqrt(C/w) And if so, I still seem to be having troubles answering the next part. 2. Suppose that an object is 100 pounds when it is at sea level. Find the value of C that makes the equation true. (Sea level is 3,963 ...
13. physics

Two hypothetical planets of masses m1 and m2 and radii r1 and r2, respectively, are nearly at rest when they are an infinite distance apart. Because of their gravitational attraction, they head toward each other on a collision course. Note: Both the energy and momentum of the ...
14. Math - Calculus

Find the equation of the non-vertical asymptote. What is the smallest value of x at which f(x) intersects its? -6x^3 + 2x^2 - 9x +3 / -5x^2 +9x - 4 1)Find the equation of the non-vertical asymptote. 2)What is the smallest value of x at which f(x) intersects its non-vertical ...
15. calc (confused)

A wedge is cut from a right circular cylinder of radius r by two planes, one perpendicular to the axis of the cylinder and the other making an angle (beta) with the first. Find the volume of the wedge by slicing perpendicular to the y-axis. Please show all steps and ...
16. computers

i have a list of websites and my job is to find for each site- when it was established and how many hits got it per day, week or month. how can i look for this info. I tried to look everywhere but i can't even find one website that has this information. Any help??
17. Graph problems!!!

Ok. so i'm supposed to find the coordinates of a line using the slope intercept method but i don't understand it!!! can some one PLEEAASE help me? also i'm supposed to graph a line using the same method and they give me the coordinates oly its in an equation form that i need ...
18. Arbitrary signs

Can someone explain to me what arbitrary signs are and some examples.. The websites on google confuse me.. Does anyone know of any good sites?
19. math

A television is sold at a discount of 13 % for IDR. 870,000. What is the actual price of the television before at a discount ? COnfuse..

10.a)Solve the inequality x^3-5x^2+2x+8<0 by i) using intervals ii) considering all cases I did this but my teacher said that when i solved this: x^3-5x^2+2x+8<0 (x+1)(x^2-6x+8) (x+1)(x-4)(x-2)<0 She told me to show all the steps, but i don't know how to show more. so...
21. calculus

Determine if the graph of the rational function has a slant asymptote. If it does, find the equation of the slant asymptote. (2x^3+18x^2+47x+24)/(x^2+6x+5)
22. Pre-Calculus

Not sure what to solve... I tried to solve it but i ended up proving that it worked. a. Find the equations of the tangents at C (-2,1) and D (1,2) on the circle x^2+y^2=5 b. Find the point of intersection of the tangents. ~What I did was find the slope and then B, within the ...
23. English

1. Please come to see me in the afternoon, when I will be free. 2. Please come to see me in the afternoon, and I will be free then. 3. Please come to see me in the afternoon, for I will be free then. 4. Please come to see me in the afternoon, and then I will be free. 5. Please...
24. Math

Indira and Jean begin their hike at 10 a.m. one morning. They plan to hike from the 2 2/5-mile marker to the 8 1/10-mile marker along the trail. They plan to hike at an average speed of 3 miles per hour. Will they reach 8 1/10-mile marker by noon? Explain your reasoning. I had...
25. Numerical Analysis

Using the bisection method, Newton’s method, and the secant method, find the largest positive root correct to three decimal places of x3 − 5x + 3 = 0. (All roots are in [−3,+3].)
26. english

I need a description of a major theme from The Robber Bridegroom by Eudora Welty, please please please. -Preferably the theme with "Jamie Lockhart is the bandit of the woods. And the bandit of the woods is Jamie Lockhart" Thank you!!!

Find the coordinates of the center of the ellipse represented by 4x^2 + 9y^2 – 18y – 27 = 0. For 2x^2 + xy + 2y^2 = 1, find , the angle of rotation about the origin, to the nearest degree. Find the distance between points at (–1, 6) and (5, –2). Identify the conic ...

1. What is the value of b in the equation b + 8 = 13? A. 5**** B. 8 C. 13 D. 21 2. The steps below show the incomplete solution to find the value of x for the equation 7x − 3x − 4 = −1 + 21: Step 1: 7x − 3x − 4 = −1 + 21 Step 2: 7x − 3x − 4 = 20 Step 3: 4x − ...
29. Math

4*8 If you mean then 4x8 = 32 I didn't want to confuse you so just ignore the begining except for the numbers. 4x8=32 same as 4*8 just different notation.

Okay so my teacher has been away and hasent explained anything to us and we have to find the intercepts, critical points, intervals of increase and decrease, points of inflection, intervals of concavity, local maximum or minimum points for each of the following functions Can ...
31. English Literature

Hello, I'm a English Literature student. I'm going to make a Project on William Shakespeare and John Milton. As I said, it's an English project, So please suggest me some good topics/title for both the projects. Also please give me some general tips and ideas. Please help, its...
32. math

find all zero's for 2x^4-11x^3+16x^2-x-6 im needing the complex, rational, irrational, and all of the zero's
33. English

Posted by rfvv on Monday, March 5, 2012 at 7:39pm. Try hard to succeed. (What is the part of speech of 'to succeed'? Is 'to succeed' the object of the verb 'try'? Or is 'to succeed' the adverbial phrase which modifies 'try'?) English - Ms. Sue, Monday, March 5, 2012 at 8:47pm...
34. Statistics

r^2 the corelation squared measures how well the y hat is than just using y bar or the other way around... I don't remeber what r^2 measures I have what it means on my calculator but I still don't understand it My teacher told me it's basically somehting like how much better y...
35. Science

Explain why the life cycle and skin of the frog make it a good indicator animal if you want to determine the health of local ecosystems. Please please help. Thanks so much.
36. Algebra 1

I need some help please. I don't understand the math that we are doing. Please explains to me in detail how to do radical expressions and like how to simplify them and stuff. I don't get it and it would be much appreciated
37. Science

How can atoms with fewer than 8 valence electrons fill their outermost energy level? (If you can, can you please help me use either sulfur or magnesium to explain the process please?) Thank You!

How long will it take for prices in the economy to double at a 6% annual inflation rate? Round to the nearest hundredth. Please explain how to solve this problem, thanks.
39. Social Studies

When did France become a country? Please don't just write the late 400's or something similar to that. Please give me the year, month, and date. Thanks!!!!!!!!!!!!!!!!!!!!!!:):):):):):):):):):):):):):):):):):):):):)

41. health Ed

please please pleeeeeeeeeeeeeeeeeeeeeeeaaaaaase help! What are the societal influences (economic, education and government policy) that can contribute to a supportive family environment? (Focus on families with adolescents)

Solve the system using substitution. y = -2x + 5 3y = -x - 5 I already got the answer, just wanna make sure it's correct. Please show work as well.
43. litreature

please help me , this journal is for tomorow and i can't do it: the idea that power courrupts but suffering can redeem is fairly common plot support this theme, please answer as fast as you can . thank you
44. Social Studies 9

PLEASE I NEED THIS BY TOMORROW!!!. why do you think lawyers in land claims trials more then 200 years after it was proclaimed . NO LINKS PLEASE.

Im sorry here is the problem rewritten X^3 -2x^3 + 3x-1 : X^2-x+4 I have to get the sum diff and product and it kicking my tail i think i keep doing it wrong can someone please help me
46. algebra

(38) please help me figure this out. The multiple choice answers did not match the answer that I got. Select approx values of x that are solutions to f(x)=0 where f(x)=-7x^2 + 5x + 9 please show me steps

If 15ml of 1M sulfuric acid is used until faint pink endpoint is reached how many moles of magnesium hydroxide are in 50ml solution. Please help

In Beijing in 2008, the women's 3,000 meter steeplechase became an Olympic event. What is this distance in kilometers? Please help answer thx

How does Exothermic and Endothermic reactions affect the rate of a reaction? Please help. I need something that will be easy for me to understand and adopt into my own words. Thank You :)
50. English

Please help correct grammar sentence below: 1. Please be informed that starting on Nov.22,2015 rate of internet charge will be pesos 15.00 per hour. thank you.
51. SS

How does the geography of Eastern Europe most affect farming in the region? There's more, but please answer this question first. If you know all the answers to the test please tell me them! Thanks!
52. Bayes' Theorem

I tried the problem and my answers are still coming up wrong?. You can compare to mine to see where you (or I) went wrong. I'm a little rusty on Virus infects one in every 200 people. A test used to detect the virus in a person is positive 90% of the time if the person has the...
53. math

Please help Jaki Taggart determine her tax liability based on the following: salary, \$75,750; wages, \$43,100; capital gains, \$14,190; \$2,000 IRA contribution; mortgage interest, \$10,200; property taxes, \$4,040; charitable contributions, \$620. She files as head of household and...
54. stats help

i cant find how much the stock price (NYCE) for standard oil on black friday ( 1929) dropped? can anyone sggest a site that has it... i couldn't find any sites that provide this information. please help me! THANK YOU!!!
55. physics

An object falls from height h from rest and travels 0.45h in the last 1.00 s. (a) Find the time of its fall. (b) Find the height of its fall. I've tried multiple times but I cannot get the correct answer.
56. Algebra

Please let me know if i answered these correctly thanks 1.Which property of the real numbers is illustrated by the following statement? 4(3x) = (4 ∙ 3)x answer: distributive property 2. Which property of the real numbers is illustrated by the following statement? 8(c + ...
57. vocab

i need 3 more sentences using accursed and i cant think of anything please help!!!! It means hateful, doomed, or horrible. The substitute tried to teach us, the accursed, but the vocabulary didn't stick, and we failed the test. The accursed child died in pain, neglected, ...
58. chemistry abs spectrum and wavelength analysis

Hello, can someone please help me? I'm stuck on a question: I'm doing an analysis of the absorbance of FeSCN2+ at it's max wavelength (i.e. 450nm where abs=0.154)The species I used to make the solution tested were Fe(NO3)3, HNO3, and KSCN. Now, the question is: Suppose there ...
59. Algebra 2!!!!

Use the graph to shorten the list of possible rational zeros of the function. Then find all real zeros of the function. 1.) f(x)= 4x^3-8x^2-15x+9 4.) f(x)= 2x^3-5x^2-4x+10
60. Language Arts

Directions: Underline the prepositional phrase in each sentence below 9. For a fraction of the cost you can buy a watermelon.-underline for a fraction 10. The boy tried to finish the race at any cost-underline at any cost. 11. At noon we all went to lunch. -underline at noon ...
61. Math/Physics

Thanks in advance, these problems have been stumping me. Please include answers though, I have tried to work it out, but need answers to see where I am going wrong/where I need to go. 1. Determine all solutions for X^4+2-3i 2. Forces of 60 and 100 pounds have a resultant force...
62. Pre-calc

Thanks in advance, these problems have been stumping me. Please include answers though, I have tried to work it out, but need answers to see where I am going wrong/where I need to go. 1. Determine all solutions for X^4+2-3i 2. Forces of 60 and 100 pounds have a resultant force...
63. Pre calc

Thanks in advance, these problems have been stumping me. Please include answers though, I have tried to work it out, but need answers to see where I am going wrong/where I need to go. 1. Determine all solutions for X^4+2-3i 2. Forces of 60 and 100 pounds have a resultant force...

yes ,i definetly did,more than once ,i just had trouble comprehending the way they try to explain it.thats why i asked to please get help showing several of both kinds of problems,some addition &some subtraction so i could try to understand how they where done.please help by ...
65. Social Studies

PLEASE ANSWER! PLEASE ANSWER! PLEASE ANSWER! 1) Identify two problems resulting from urban sprawl in the western region of the United States. If these problems are not solved, what will the outcome likely be? 2) Why do you think the Canadian government is opposed to Quebec's ...
66. english

it is not unusual for writers to confuse advers and adjectives how did the material in my writinglab help reduce the possibility of confusion describe the strategies you have developed to avaoid confusing the use of adverbs and adjectives in the future
67. physics

i know this is stupid most likely but i missed a few weeks of lecture bc i was in hospital and i caught up on most of the notes but certain parts have me confuse, does anyone know how to tell if an electric force is negative or positive?
68. Pre-Calc

A slice 1 unit thickness is removed from one see of a cube. Use the rational zeroes theorem and synthetic division to find the original dimensions of the cube, if the remaining volume is 48 cm^3 v= x^3 v=x*x*x x=(x-1)*x*x 48=(x-1)*x*x
69. Precalculus

I've tried many times to get the equation to balance using trig identities like half-angle formulas, power-reducing formulas, and double angle formulas, but I couldn't get the equation to equal out. I only need to work one side to make it equal to the other, like a kind of ...
70. RATE, DISTANCE, TIME

TIM PADDLED HIS KAYAK 12 KM UPSTREAM AGAINST A 3 KM/H CURRENT AND BACK AGAIN IN 5 HR 20 MINUTES. iN THAT TIME HOW FAR COULD HE HAVE PADDLED IN STILL WATER 12/(v+3) + 12/(v-3) = 5.33 hours Solve for this speed in still water, v. 12(v-3) + 12(v+3) = 5.33 (v^2 -9) 24 v = 5.33 v^2...

Your uncle is three years older than your aunt. The product of their ages is 3190. What are their ages? I know the answer is 55 and 58. But I can't come up with the correct formula or equation to get the answer. I've tried 3(A+3)=3190. It doesn't come up with the right answer ...
72. English

1. I tried to make myself at home. 2. I tried to make myself comfortable. ---------- Are both the same? Thank you.

1. Find the distance between the pair of points. Round to the nearest tenth is necessary. (-10, 4) and (6, 12) a. 11.4 b. 17.9 c. 31.4 d. 23.7 2. Find the distance between the pair of points. Round to the nearest tenth, if necessary. (-8,10) and (-2,10) a. 13.6 b. 21.2 c. 23.4...
74. POLYNOMIALS

The cubic polynomial f(x) is such that the coefficient of x^3 is -1. and the roots of the equation f(x) = 0 are 1, 2 and k. Given that f(x)has a remainder of 8 when divided by (x-3), find the value of k. okay, this is what i did: -x^3 + bx^2 + cx + d = (x-1)(x-2)(x-k) f(3)=8 -...
75. Math

Simplify. -2(3)^2 - 8 ÷ 2 + 6 A) -18 B) -16** C) -7 D) 7 Lucy is trying to find a rational number between 3/8 and and 6/7 What would help her to find this number? A)Divide 3/8 by 6/7*** B)Multiply 3/8 by 6/7 C)Convert 3/8 and 6/7 to Fractions with a common denominator. D) ...
76. Math

1) Solve equation 3r+5 _____ + 2 = 2r to find the value of r? 2 A. 2 1/7 B. 3 2/3 C. 15 D. 10 2) which is these is a rational number. A. Sq root of 14 B. -sq root of 9 C. -sq root of 34 D. Sq root of 72
77. Science

jellyfish sometime squeeze in the size of their bodies. this pushes a stream of water from the back end of their bodies. according to newtons third law of motion, how will this behavior affect the movement of the jellyfish? a. The jellyfish will move forward b. The inertia of ...
78. eNgLiSh

If you have ever read To Kill a Mockingbird, Of Mice and Men, or The Five People you meet in Heaven, please leave a post b cuz I have some questions that I need help on thank u in advance LOL- lots of luv, Brie To Kill a Mockingbird: http://www.sparknotes.com/lit/mocking/ Of ...
79. physics

An underwater micriphone is used to record sounds emitted by porpoises. The minimum intensity level the instrument can record is 30.9dB. Assuming a porpoise emits sound at a rate of 0.0603J/s, what is the maximum distance at which the animal will still be recorded? Neglect ...
80. physics

An underwater micriphone is used to record sounds emitted by porpoises. The minimum intensity level the instrument can record is 30.9dB. Assuming a porpoise emits sound at a rate of 0.0603J/s, what is the maximum distance at which the animal will still be recorded? Neglect ...
81. physics

An underwater micriphone is used to record sounds emitted by porpoises. The minimum intensity level the instrument can record is 30.9dB. Assuming a porpoise emits sound at a rate of 0.0603J/s, what is the maximum distance at which the animal will still be recorded? Neglect ...
82. physics

An underwater micriphone is used to record sounds emitted by porpoises. The minimum intensity level the instrument can record is 30.9dB. Assuming a porpoise emits sound at a rate of 0.0603J/s, what is the maximum distance at which the animal will still be recorded? Neglect ...
83. physics

An underwater micriphone is used to record sounds emitted by porpoises. The minimum intensity level the instrument can record is 30.9dB. Assuming a porpoise emits sound at a rate of 0.0603J/s, what is the maximum distance at which the animal will still be recorded? Neglect ...
84. physics

An underwater micriphone is used to record sounds emitted by porpoises. The minimum intensity level the instrument can record is 30.9dB. Assuming a porpoise emits sound at a rate of 0.0603J/s, what is the maximum distance at which the animal will still be recorded? Neglect ...
85. GEOMETRY(SURFACE AREA)

Find the surface area and the lateral area of a regular square pyramid with base edge 6 and a lateral edge √34. PLEASE PLEASE HUHU Teach me how and what is lateral edge
86. algebra

What are the roots of 2 X /x-6= 0
87. math

what are the roots for x^3-2x^2-7x-4?
88. math

what are the roots of x^3-3x^2+3x-1
89. math

what are the roots od x^3+x^2-4x-4?
90. US History -- needs assistance

Please use the subject line for its obvious purpose. Please also do not post questions more than once. Whenever someone with knowledge about your question comes along, he/she will respond. Thanks for your patience. my teacher like gave me the emancipation proclamation and ...

A 5.00 kg ball (ball 1), moving to the right at a velocity of +4.00 m/s on a frictionless table, collides head-on with a stationary 7.60 kg ball (ball 2). Find the final velocities of the balls if the collision is as specified below. (a) elastic collision ball 1 ball 2 (b) ...
92. Math

Actually, i made a mistake. All though we still came up with the right answer, I made a mistake and copied another book answer to another question into this question. The real book answer to this word problem is: ( Let's translate the English into Math: x+3x=60, so x=15 and ...
93. HCA 220

I need help with my presentation I have to do 10 to 12 slides that summarizes the processes of digestion, respiration, and circulation. I have asked for help from my professor but she said just to look at my course syllabus but still don't understand on how I am to do the ...

Sullivan's Handbags marks up their bags at 45% of the selling price. Pat Sullivan saw a bag at a trade show that would sell for her customers for \$85. What is the most she would pay for the bag and still retain the 45% markup of the selling price? I came up with 84.99 please ...
95. Discrete Math

Solve the recurrence relation a_n = -6a_n - 1 + 7a_n-2, n ≥ 2, given a₀ = 32, a₁ = -17. This is what I have figured out so far: polynomial: x² + 6x - 7 distinct roots: 1 and -7 I do not understand how to find C₁ and C₂. How do I complete this ...
96. science

hi. can you help me with my homework? here is my homework. How are bacteria different from protists. I hope you can help me. Have a nice night. Also, this is due tomorrow. Thank for helping me. Please answer this fast and I know you have a lot of kids to help like me. Also ...
97. celebrating Diversity

One of the children in your care asks, "Why can't Sonya walk?" in reference to a fouryear with cerebral palsy. The best response is A. "It doesn't matter, she's still our friend, right?" B."She can't walk, but she can talk and laugh like you." C."Sonya has special needs so ...
98. CDA

One of the children in your care asks, "Why can't Sonya walk?" in reference to a four-year-old child with cerebral palsy. The best response is A. "Sonya has special needs so please be kind to her." B. "It doesn't matter, she's still our friend, right?" C. "She can't walk, but ...
99. Algebra

Please help me solve this problem the kinetic energy (k) energy of a moving object with varies jointy with it mass (m) and the squareo of its velocity (v). If an object has an mass of 22.5 kilograms and moving with a velocity of 20 meters per secomd has a kinetic energy energy...
100. Integration

Intergrate ¡ì sec^3(x) dx could anybody please check this answer. are the steps correct? thanks. = ¡ì sec x d tan x = sec x tan x - ¡ì tan x d sec x = sec x tan x - ¡ì sec x tan^2(x) dx = sec x tan x + ¡ì sec x dx - ¡ì sec^3(x) dx = sec x tan x + ln |sec x + tan x...