Questions on Algebra: Rational Functions, analyzing and graphing answered by real tutors!

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Tutors Answer Your Questions about Rational-functions (FREE)


Question 127489: {6-x/x-8}-{2x+2/8-x}
Add or subtract and simplify
Thanks for your help

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Question 127664: The Variables x and y vary inversely. y=3/5 when x=7/2 Find an equation that relates the variables
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Question 127676: use a t-chart to graph y=1/x-5. Identify any asymptotes
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Question 127773This question is from textbook
: The sum of two numbers is 85.Twice the smallest number is 32 more than the larger. Find the two numbers.This question is from textbook

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Question 128268This question is from textbook Algebra 2
: How do i identify horizontal and vertical asymptotes of functions
This question is from textbook Algebra 2

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Question 128333: Please help, test tomorrow
(2x+5)^1/2=4

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Question 128335: x-12=sq root (16x)
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Question 128347: sq root(x^2+5)=x+3
Thank you

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Question 128342: Question 128335
I didn't understand how you came up with the squaring answer on each side
I got:
x-12=sq rt(16)
x^2+144=16
where did the 24 come from?

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Question 128515: Hello, I was wondering if anyone could help me with a polynomial function.
It says to find all the real zeros.
f(x)= 2x^4 -2x^2 -40
2(x^4 -x^2 -20) = 0
2(x^2 -5)(x^2 +4) = 0

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Question 128653: the problem is x^2-X-2= i CAME UP WITH (X+2)(X-1) Why wouldnt this be the right answer.
Next problem is 2x^2-x-3= I came up with (2x+3)(x-1)

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Question 128750: I know these questions are easy for you guys but I just don't retain any algebra at all. I try my best before I consult you. On that note can you help me refresh my memory on this graphing type problem? I need to solve by graphing.
Do I need points for this question? If I do I will use x = points 0 ,-1, 1 and
Do I need points for Y ? Can you show me the easiest way? I really appreciate all your help, I really do! This problem is a handout and is not in a book. Thanks so much.
x-2y=0 and 2x-y= -3

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Question 128881: i dont get how to do these!!!!! help me!!!
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Question 128923: Find the roots
X^3 - X^2 + 15X - 17 = 0
If I use synthetic division, I get
(X + 1)(X^2 - 2x + 17)
This is where I am stuck. I need help to finish it because I can't get synthetic division to come out right.
Thank you.
Laura

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Question 129328This question is from textbook Prentice Hall Mathematics Algebra 2
: the problem would be (3x2/3)-1 where the 2/3 and the -1 are the exponents and i am having troubling solving. could you helpThis question is from textbook Prentice Hall Mathematics Algebra 2

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Question 129383: What is the midpoint of the line that connects the points (-3, 2) and (1, -2)?
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Question 129387: Find the quadratic model for the set of values.
(1,-2), (2,-2), (3,-4)

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Question 129673This question is from textbook McDougal Littell Algebra 2
: Simplify the rational expression
(x^3)-(2x^2)+x-2
---------------- (<- symbolizes dividing side)
(3x^2)-3x-8
Im terrible at factoring... Can you help?
This question is from textbook McDougal Littell Algebra 2

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Question 129646: Can you show me how to do this ratio problem.
The ratio of 7 dimes to 3 quarters
Marc took 3 hours(h)to mow a lawn while Angelina took 150 minutes (min) to mow the same lawn a week earlier. Write the ratio of Marc's time to Angelina's time as a ratio of whole numbers.
Sherri

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Question 129829: 3) During the first part of a trip, a canoeist travels 82 miles at a certain speed. The canoeist travels 19 miles on the second part of the trip at a speed 5 mph slower. The total time for the trip is 3 hrs. What was the speed on each part of the trip?
The speed on the first part of the trip was _______ mph.

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Question 129952This question is from textbook algebra 2 prentice hall classics
: f(x)=-3x^3+2x is this an even odd or nether i just got surger so im on independent study and the book explantion is just confusing me i really need helpThis question is from textbook algebra 2 prentice hall classics

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Question 129952This question is from textbook algebra 2 prentice hall classics
: f(x)=-3x^3+2x is this an even odd or nether i just got surger so im on independent study and the book explantion is just confusing me i really need helpThis question is from textbook algebra 2 prentice hall classics

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Question 129983: I am so very confused. This is from an on line course, Graph the function f(X)=-3^+X-5. At this point I have come up numerous answers
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Question 130108: Simplifying complex fractions
3/x-2 + 5/x+3
How do you do this?

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Question 130106:
solving rational equations:
7/x+4-3/x-2
How do you do this?

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Question 130479This question is from textbook
: How do you find the domain of functions. For example, if I had {(x+3)x^1/2}/4, what would be the domain?This question is from textbook

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Question 130510This question is from textbook College Algebra with Trigonometry
: An open metal chemical tank is to be made from a rectangular piece of stainless steel that measures 10 feet by 8 feet, by cutting out squares of the same size from each corner and bending up the sides. If the volume of the tank is to be 48 cubic feet, how large a square should be cut from each corner?
The problem asks to find all rational solutions exactly, and find irrational solutions to one decimal place.
I am truly confused from this problem! I have done others like it, but my teacher usually gets it started for us. Any help whatsoever is appreciated very very much!!
This question is from textbook College Algebra with Trigonometry

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Question 130668This question is from textbook Algebra 2 Mcdougal Littell
: (3/2x)-(9/2)=6xThis question is from textbook Algebra 2 Mcdougal Littell

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Question 130742This question is from textbook Algrebra II
: This question is from textbook Algrebra II

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Question 130827This question is from textbook
: Please help me solve this equation: the perimeter of a rectangle is 64 cm.the area is 240cm^2. what are its dimension?This question is from textbook

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Question 130921This question is from textbook
: I can not remember what all the variables in this equation means: "A=p(1+r/n)nt." I know that this is interest, and payment. But when I have word problems, I lose what the variables mean and I don't know where to plug which numbers in. Help?This question is from textbook

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Question 130967: For what numbers x is f(x) = 0?
the graph is: its starts from -1 on the y-axis and cuts over 1 on the x-axis and ends at points (6,1.5)
pls i need this answer urgently
thanks in advance

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Question 131061This question is from textbook
: simplify 5x+2y/35x+14yThis question is from textbook

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Question 131193This question is from textbook Microeconomics
: I am taking a class in Economics. The problem I am trying to work is:
Q=10K^0.5 L^0.5 Q=10K^0.6 L^0.4
These are production function of two companies where Q is the number of computers produced per day, K is hours of machine time, and L is hours of labor input. We need to find out the output for these equations. The problem asks if both companies use the same amount of capital and labor, which will generate more output?
How are these problems worked?
This question is from textbook Microeconomics

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Question 131230This question is from textbook McDougal Littell
: How do i graph the inequality x<-2.This question is from textbook McDougal Littell

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Question 131274: hey i got stuck halfway through this one:

5/6ab-7/8a
this is what i got:
i found the Least Common Denominator=24ab
multiplied it out to get
20-21b/24ab and im not sure how to simplify from here. Whattya think?

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Question 131360: Can you help me with this type of equation. Use point-slope form to write the equation of the line passing through the two given points. Write the equation in slope-intercept form. I do not have a good grasp on this type of math problem. Thank you
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Question 131404: Reduce the fractions to lowest terms.
x^3+x^2+x+1/x^2-1

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Question 131471: I need help putting this rational expression in lowest terms:
72x^2y^3z^5
_____________
240xy^3z^7 I first simplified the 72 and 240 by dividing both by 8. I think I need to factor them before finding the lowest terms, but can't figure out how to factor the different variables.

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Question 131511: Given describe the translation for the function and graph
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Question 131512: i have test tommorow please help
Given ,find the asymptotes and intercepts and then graph

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Question 131516: Please help with this problem i have a test tonite
Use synthetic division and the Remainder Theorem to evaluate P(c):
Given and c=2

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Question 131510: What are the asymptotes and intercepts of ? Show it on graph.
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Question 131517: hello! how are you?could u please help me with this i have similar question on my test tonite ,thank you:
Show that a=-3 and b =1 are the lower and upper bounds fro all zeros of the polynomial

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Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690