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

Tutors Answer Your Questions about Rational-functions (FREE)

Question 559355: Please help me solve this equation: 4/x-2=(1/x-2)-(1/x^2-2x)
Click here to see answer by lwsshak3(6508)

Question 559324: how do i graph this radical function.... y=4x/x^3-4x?
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Question 557876: I have a couple of these and cannot locate directions I can understand-please help! Draw the graph of y=3cos(2x) for 0< or= x < or = 2 pi
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Question 559620: How do you solve 4^(1/3+5/3)? Would the answer be 14?
Click here to see answer by Alan3354(30993)

Question 558571: Not sure I'm in the right section, but the question is:
Find the domain of x in the expression square root of 36 minus X squared.
Thank you in advance of your consideration
Click here to see answer by lwsshak3(6508)

Question 557478: on graph paper draw the graph of y = 2 sin(pi times x) for 0, or = x , or = 2 times pi and identify amplitude, period and the number of cycles completed in the given interval??? I have no idea how to even begin, Any assistance is appreciated :)
Click here to see answer by lwsshak3(6508)

Question 560284: A common ant absorbs oxygen at a rate of about 6.2 mililiters per second per square centimeter of exoskeleton. It needs about 24 mililiters of oxygen per second per cubic centimeter of its body. An ant is basically cylindrical in shape, so its surface area S and volume V can be approximated by the formulas for the surface area and volume of a cylinder:
S=2πh+2πr^2
V=πr^2h
a) Approximate the surface area and volume of an ant that is 8 mm long and has a radius of 1.5 mm. would this ant have a surface area large enough to meet its oxygen needs?
b) Consider a "giant" ant that is 8m long and has a radius of 1.5m. would this ant have a surface area large enough to meet its oxygen needs?
c) substitute 1000r for r and 1000h for h into the formulas for surface area and volume. how does increasing the radius by height by a factor of 1000 effect surface area> How does it affect volume? Use the results to explain why "giant" ants do not exist.
Click here to see answer by Theo(3464)

Question 560430: Let f(x)=3+5 and g(x)=x^2. Perform each function operation.
1) f(x)+g(x)

Click here to see answer by subudear(55)

Question 560441: please may you help me find the possible rational zeros of using the rational zero theorem for this problem f(x)=x to the fourth power+ 2x^-24
Click here to see answer by ankor@dixie-net.com(15652)

Question 560724: My teacher gave us these problems:
Solve each equation and state each zero using the Rational Root Theorem and the Conjugate Root theorem
x^3+2x^2+3x+6=0
x^4-7x^2+12=0
3x^3-7x^2-14x+24=0
I lost the notes for all of this and this is due tomorrow, I need help ASAP
Click here to see answer by stanbon(57357)

Question 560734: Find all of the rational roots of each polynomial equation
2xsquared + 3x + 1 = 0
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Question 560803: How do you solve 3x to the 3rd power divided by 12x squared +9x
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Question 560945: GRAPH THE EQUATION 7x+3y=21
I NEED TO SEE THE GRAPH EQUATION
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Question 560945: GRAPH THE EQUATION 7x+3y=21
I NEED TO SEE THE GRAPH EQUATION
Click here to see answer by josmiceli(9681)

Question 561096: y= x^2+7x+10
....._________
.....x^2+17+16
find vertical asymptotes horizontal asymptotes, roots , y-intercept and sketch the graph
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Question 561484: x^4-5x^2+4=0
Click here to see answer by scott8148(6628)

Question 562274: how do we solve 1125= a times 15625
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Question 562274: how do we solve 1125= a times 15625
Click here to see answer by Maths68(1474)

Question 563194: Can I get help with understanding relations and functions?
Click here to see answer by stanbon(57357)

Question 563213: -2x=-2
Click here to see answer by Alan3354(30993)

Question 563052: is f(x)=x(x-1) a polynomial function explain
Click here to see answer by richard1234(5390)

Question 563518: v^2-2v-24
Click here to see answer by fcabanski(874)

Question 563792: please help me solve square root equation: sqrt(-8-3x)= 4
Click here to see answer by Alan3354(30993)

Question 563811: Graph the following function using transformation. Find the vertical and horizontal asymptotes. state the domain and range
Click here to see answer by stanbon(57357)

Question 562855: evaluate: 16 with 3/2 as an exponent

Click here to see answer by lwsshak3(6508)

Question 562736: what are the factors of 6x cubed + 6x squared - 2x -2?
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Question 562041: Rational Zero Theorem
How do you factor
f(x)= 4x^3-8x^2-29x-12
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Question 562701: when I have the equation square root of(x+5)=2*square root of (x-3) + 1 how do I start that?
Click here to see answer by lwsshak3(6508)

Question 561931: Graph the relation y=2x^2-2 and it's inverse.
Click here to see answer by lwsshak3(6508)

Question 561394: how would you do this if the exponent is a negative such as something that looks like this 64^-2/3?
Click here to see answer by lwsshak3(6508)

Question 564236: Let ƒ(x) = 3x2 – 2x and g(x) = x – 6.
(f/g)(-1)=
solve equations:
(4x-3)^3/2=8
(-2-x)^0.5-x=2
I am a mom trying to help my daughter and I just don't get it!
Click here to see answer by stanbon(57357)

Question 564628: Find all numbers for which the rational expression is undefined.
(p^3-7p)/(p^2-9)

Click here to see answer by ad_alta(240)

Question 564851: Let ƒ(x) = 3x2 – 2x and g(x) = x – 6. Find the value of (f/g)(-1)
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Question 565028: I need help on functions... for example like this homework question. f(x)= 3x+5 and g(x)=x^2 my problem is what is the funtion for f(x)+g(x)
Click here to see answer by ad_alta(240)

Question 565050: No matter how hard i try to learn this lesson, I'm stumped. Please help.
Multiply.
1.) ∛4 x ∛2000

Simplify.
2.)∛-243x^3y^10

Multiply and simplify.
3.)√18x^3 x √2x^2y^3

Divide and simplify.
4.) ∛270x / ∛10xy^2

Rationalize the denominator of each expression.
5.) √7x / √3

6.) ∛x^2 / ∛4
Click here to see answer by josmiceli(9681)

Question 565468: expand (2a-1)^4 by using pascal's triangle
andreajuni@yahoo.com
Click here to see answer by scott8148(6628)

Question 565932: x^2/3x+15-25/3x+15
Click here to see answer by Maths68(1474)

Question 566741: √a + √b = √(a+b)
is this true or false
i believe i am correct saying false as the radican are different even though the index are alike
Click here to see answer by Alan3354(30993)

Question 566829: simplipfy
s-r over 1/r-1/s
Click here to see answer by jim_thompson5910(28595)

Question 566830: without a calculator, sketch the following function. Make sure to label both the x and y intercepts. (Hint: find the zeroes and y-intercept in terms of c)
Click here to see answer by Alan3354(30993)

Question 567287: I need help writing a polynomial function with rational coefficients in standard form with the given zeros 2,3,5.
Click here to see answer by htmentor(789)

Question 567728: I have been working on this problem -4(8+5)-10 8/5 for awhile and I can not seem to understand it.
Click here to see answer by stanbon(57357)

Question 567808: factor 3x^3 +33x^2 +90x
Click here to see answer by Earlsdon(6287)

Question 567927: x-1 over x squired +7x+6 + 4 over x squire-3x-4 + 14 over x squire+ 2x-24
Click here to see answer by mananth(12270)

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