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

Tutors Answer Your Questions about Rational-functions (FREE)

Question 320095: Rationalize the denominator simplify
Click here to see answer by Fombitz(13828)

Question 320095: Rationalize the denominator simplify
Click here to see answer by Edwin McCravy(8909)

Question 320096: I am having difficulty with this. Please help.
if a pendulum has a period of 2 seconds, find its length rounded to the nearest tenth of a foot use formula T= 2 pi sqrt L/32
Click here to see answer by vleith(2825)

Question 320078:
Which expression represents the sum of the following?
(3n / n^2 - 2n + 1) + (5 / n - 1)
a) 8n - 1 / (n - 1)^3
b) 8n - 5 / (n - 1)^3
c) 8n - 5 / (n - 1)^2
d) 8n - 1 / (n - 1)^2

Click here to see answer by checkley77(12569)

Question 320289: f(x)=2x-3/x-4
e)f(a+h)
Click here to see answer by nyc_function(2733)

Question 320384: Please help me solve this equation:

Click here to see answer by Alan3354(30993)

Question 320347: list all possible zeros of y=3x^3-5x^2+4x-2
Click here to see answer by Fombitz(13828)

Question 320872: (x-7)/(x+8)=4/3
Click here to see answer by mananth(12270)

Question 320915: Why is every natural number a rational number, but not every rational number is a natural number?

Click here to see answer by jim_thompson5910(28598)

Question 321005: sum of rational expressions.
i tried breaking the question down but i get lost.
THE QUESTION:
a 2
_____ + _______
(a^2+2a+1) (a^2+6a+5)
Click here to see answer by Fombitz(13828)

Question 321025: 8n -(6-2n)
Click here to see answer by rfer(12670)

Question 321073: amy paid $56.72 for a pair of runnig shoes during a 20%-off sale. what is the regular price of the shoes
please help this is on my final exam and i have no idea how to answer it thank you
Gabriella
Click here to see answer by stanbon(57387)

Question 321075: 2r - 3s = 12
3r + 2s = 31
solve by the elimination method
what is the solution of the system
(type an ordered pair. Use the intergers or fractions for any numbers in the expression)
this question is on my final exam please help and quick thank you!!!!!!!!!!!!!!!!

Gabriella
Click here to see answer by ankor@dixie-net.com(15660)

Question 321442: what steps would i follow to solve cuberoot of x -4=2
Click here to see answer by Alan3354(30993)

Question 321441: The bank compounds continously then the formula used is A=Pe^rt where e is constant and equals appr 2.713/ calculate A with continous compounding. roung your answer to the hundredth's place.
so far I have A=4000^.07(8) butcant get it to come out right.
Click here to see answer by Alan3354(30993)

Question 321496: Can someone please help me to understand the below problem. I am working with mutliplying radicans, I thought I had it figured out, but I am having a difficult time with this one.
(√6)/(√7)*(√14)/(√3)
Click here to see answer by scott8148(6628)

Question 321513: solve 4x+x(x-1)=0
find the x-intercepts of f(x)=4x+x(x-1)
I am not sure how to get this into proper form dont know what to do with the x(x-1)part
Click here to see answer by scott8148(6628)

Question 321735: Find the indicated function value?
13. h(x)= 3x^2+5
a. h(0)
b. h(-1)
c. h(4)
d. h(-3)
e. h(4b)

Click here to see answer by EpicTapeMaster(2)

Question 321871: Can someone please help me to solve this one, I have tried several times, but I am doing something wrong. Please show me what to do. I tried using the quadratic formular, perhaps that is what I am doing incorrectly.
2sqrt(3x^(2)-2)=10
Click here to see answer by Earlsdon(6287)

Question 322025: Contruct a polynomial function with stated properties. Reduce to lowest terms.
Third degree with zeros of -3,-2 and 1 that passes through (3,8)
Click here to see answer by Jk22(389)

Question 322190: y/y+sqrt(y)
Click here to see answer by solver91311(16897)

Question 322154: Find all solutions. x^2 + x - 2 + square root of (x^2 + x) = 0
Click here to see answer by Jk22(389)

Question 322414: Simplify the problem
y2+12y+36
__________
y2+15y+54
Click here to see answer by Earlsdon(6287)

Question 322638: (4xy)/ (4x^2y^2)
Click here to see answer by stanbon(57387)

Question 322372: 4sqrt(81)(a^8)(b^10)
Click here to see answer by QH(50)

Question 322873: A pair of shoes was $56.24. it s 20% off, what was the original cost of the shoes?
Click here to see answer by rapaljer(4667)

Question 323309: is 16/|x|^2 a rational expression and 15/x also a rational expression? thank you
Click here to see answer by rapaljer(4667)

Question 323467: how would i solve 14x^-3+9x^-4
Click here to see answer by checkley77(12569)

Question 323450: 15x^4-28x^2+5=0
Click here to see answer by checkley77(12569)

Question 323424: 180w^2+300wp+125p^2
factor completely
Click here to see answer by checkley77(12569)

Question 323537: 5/z=9/z-1/3 simplify answer, type integer or fraction
Click here to see answer by ankor@dixie-net.com(15660)

Question 323554: (5radical3-10radical2)*(4radical3+8radical2)
so far i have 20(radical3)^2-40 radical3* radical2-40 radical2*radical3-80(radical2)^2
next 20*3-40 radical6-40 radical6-80*2
not sure what to do after this?
Click here to see answer by stanbon(57387)

Question 323620: Find the average rate of change of the function from x1 to x2.
7) f(x) = -3x2 - x from x1 = 5 to x2 = 6
Click here to see answer by Fombitz(13828)

Question 323618: Find and simplify the difference quotient
f(x + h) - f(x)
h
, h 0 for the given function.
4) f(x) = x2 + 3x + 9
Click here to see answer by Fombitz(13828)

Question 323209: (k-3)/(k-2)-(k-4)/(k-1)=(3k+2)/(k^2-3k+2)
Click here to see answer by Fombitz(13828)

Question 324050: solve using the elimination method
0.3x-0.2y=4
0.5x+0.3y=1
the solution is (___,___)
Click here to see answer by Fombitz(13828)

Question 324173: What is the slope of a line?
Given two points on a line, how is the slope calculated?
Given the equation of a line, how is the slope calculated?
Demonstrate by determining the slope of "3x + 5y = 19."
Click here to see answer by checkley77(12569)

Question 324374: Need help please
solve by the subsutution method
8x-9y= -95
5x+64=y
The solution is (___,___)
Click here to see answer by Fombitz(13828)

Question 324760: Find all the rational zeros of f(x) = 6x^3 -13x^2 + x + 2.
Click here to see answer by Fombitz(13828)

Question 324684: how do you evaluate and simplify (2x/x^2-5x+6)+(4/x-2)
Click here to see answer by Fombitz(13828)

Question 324801: If f(x) = 7x3 − 8x + 2, then f(8) = ___.
Click here to see answer by checkley77(12569)

Question 324761: Find all the rational zeros of f(x) = 6x^3–3x+11x^2–2.
Click here to see answer by Fombitz(13828)

Question 324763: The functions f1(x) = -2(x–3)^4+1 and f2(x)=-2(x+1)^4–5 are graphed on the same axes.
Explain how f2 can be obtained by a translation of f1.

Click here to see answer by Fombitz(13828)

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