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September 17, 2014

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Simplifying Rational Expressions4x-12/4x
These are the answers i wanted corrected: 4x12/4x d+7/d^2-49 t^2-25/t^2+t-20 2x^2+6x+4/4x^2-12x-16 6-y/y^2-2y-24 You will have to use brackets to show the intended order of operation. How can we 'correct' your work if you supply neither solutions nor answers? I will be happy ...
March 11, 2007 by mike

math
When simplifying a rational fraction, why do you need to factor the numerator and the denominator? Include two examples! to get like terms Can you explain a little more? When you factor then you can cancel like terms Example: 12/3 (3)(4) ------- = 4/1 =4 3 i need to ask you a ...
June 14, 2005 by jenn

Algebra
Take any number (except for 1). Square that number and then subtract one. Divide by one less than your original number. Now subtract your original number. You reached 1 for an answer, didn’t you? How does this number game work? (Hint: Redo the number game using a variable ...
April 21, 2008 by Candace

algebra
Take any number (except for 1). Square that number and then subtract one. Divide by one less than your original number. Now subtract your original number. You reached 1 for an answer, didn’t you? How does this number game work? (Hint: Redo the number game using a variable ...
March 25, 2010 by Anonymous

Math
Use rational exponents to simplify the radical. If rational exponents appear after simplifying, write the answer in radical notation. 20sqrt(x^12)
April 17, 2010 by Help please

Math
Use rational exponents to simplify the radical. If rational exponents appear after simplifying, write the answer in radical notation. 3sqrt(2)/ 5sqrt(2)
April 17, 2010 by Help please

math
•Post a response to the following: Take any number (except for 1). Square that number and then subtract one. Divide by one less than your original number. Now subtract your original number. Did you reached 1 for an answer? You should have. How does this number game ...
October 1, 2008 by Anonymous

ALGEBRA
i NEED MORE THAN JUST THE EXAMPLE i ALSO NEED TO EXPLANATION Take any number (except for 1). Square that number and then subtract one. Divide by one less than your original number. Now subtract your original number. You reached 1 for an answer, didn’t you? How does this number...
March 9, 2010 by SLIM

algebra
Simplifying Rational Expressions: a^3-2a^2/2a^2-4a
May 19, 2011 by layla

algebra
*simplifying rational expressions a. 6x+12/4-x b. 3x^2/12-2x
November 13, 2012 by jaime

Simplifying Rational Expressions
1) d + 7/d^2 - 49 2)b^2 - 10b + 21/b^2 - 11b + 28 Please help me.
June 3, 2009 by Claire

Math 209
When simplifying a rational fraction, why do you need to factor the numerator and the denominator? If there is a common factor in both the numerator and denominator, that factor will cancel, thus simplifying the fraction. e.g. 15/18 = (3*5)/3*6) =(3/3)*(5/6) =(1)*5/6 =5/6
April 3, 2007 by Jennifer

school work
Factoring Polynomials and Simplifying Rational Expressions
December 11, 2008 by sherri

Algebra
(Rational exponents)simplifying a^1/2/a^2 Please post steps
May 24, 2014 by tbell

math
I need help making up a number game for simplifying rational fractions
May 12, 2009 by shelly

Algebra
Take any number (except for 1). Square that number and then subtract one. Divide by one less than your original number. Now subtract your original number. You reached 1 for an answer, didn’t you? How does this number game work? (Hint: Redo the number game using a variable ...
August 25, 2010 by Spring

Math-Rational #'s
Just trying to understand this. Please let me know if I did these right. Thanks!!! -7 as a rational # = -7/10 -3.03 as a rational # = -33/10 -2 3/12 as a rational # = -25/12 1.03 as a rational # = 13/10
March 15, 2010 by Kate

Simplifying Rational Expressions
Can anyone help me with these 3x-9/3x x^2-25/x^2+6x+5 4x8/105x 4x+4/x^22x3 2x^2+14x+12/4x^4x8 nevermind
March 11, 2007 by mike

math
When simplifying a rational fraction, why do you need to factor the numerator and the denominator? Include two examples! I will be happy to critique your thinking on this. I wouldn't ask if I knew how to guess
June 14, 2005 by jenn

AED
Explain why this statement is true: when simplifying rational expressions, we must cancel factors only, and not terms. Give an example using just numbers.
July 10, 2010 by Lori

Math
Explain why this statement is true: when simplifying rational expressions, we must cancel factors only, and not terms. Give an example using just numbers.
July 14, 2010 by Lori

Simplifying (Math)
[a + (8a^-2)] / [1 + (2a^-1)] and [(x^-1) + (y^-1)] /[(x^-1) - (y^-1)] No idea where to begin simplifying. Suggestions and help are greatly appreciated.
August 5, 2008 by Reina

math
Take any number (except for 1). Square that number and then subtract one. Divide by one less than your original number. Now subtract your original number. Did you reach 1 for an answer? You should have. How does this number game work? Hint: Redo the number game using a ...
November 2, 2010 by Paula

alegbra
How does the number game work. How does the number game use the skill of simplifying rational expressions?
April 11, 2011 by chris

Simplifying Rational Expressions
Can someone slove these for me 1.(4x-12)/4x 2.(d+7)/(d^2-49 ) 3.(t^2-25)/(t^2+t-20) 4.(2x^2+6x+4)/(4x^2-12x-16) 5.(6-y)/*y^2-2y-24) all you have to do is reduce like #1 4x-12 ______ 4x cross out the 4x b/c it's on the top and bottom which leaves just -12 on the top You can't ...
May 16, 2007 by mike

Algebra
A few questions on simplifying rational expressions... 1). 15x^2/10x this simplifies to 3x^2/2 according to my book. But I would think it should be 3/2x since x^2-x=x. Why not? 2). Simplify 3xy/xy+x. How come the (xy)'s don't cancel so you are left with 3/x? 3). Can you break ...
November 22, 2009 by Jaz

math
What is the best sequence of names to identify this set of numbers? (1 3/5,-10, 0.51(the one is repeating), TT,17) 1.(rational,integer,irrational,irrational,natural) 2. (rational,irrational,rational, irrational, whole) 3.rational,real,rational,real, natural) 4. (real,integer, ...
November 17, 2013 by B8

math- please help
What is the best sequence of names to identify this set of numbers? (1 3/5,-10, 0.51(the one is repeating), TT,17) 1.(rational,integer,irrational,irrational,natural) 2. (rational,irrational,rational, irrational, whole) 3.rational,real,rational,real, natural) 4. (real,integer, ...
November 17, 2013 by B8

Algebra
I just need help with the number game part. I can't think of any kinds of games to come up with? Take any number (except for 1). Square that number and then subtract one. Divide by one less than your original number. Now subtract your original number. Did you reached 1 for an ...
January 21, 2008 by Noah

Simplifying Rational Expressions
Alright I believe i got it right this tim(They should be typred out correctly).Can someone solve these for me 1.(4x-12)/4x 2.(d+7)/(d^2-49) 3.(t^2)-25/(t^2+t-20) 4.(2x^2+6x+4)/(4x^2-12x-16) 5.(6-y)/(y^2-2y-24) We do not do your work for you. Find the factors for the numerator ...
May 16, 2007 by mike

algebra
Create your own number game using the rules of algebra and post it for your classmates to solve. Be sure to think about values that may not work. State whether your number game uses the skill of simplifying rational expressions
October 7, 2008 by mike

Simplifying Rational Expressions
Can someone PLEASE solve these for me 1.4x-12/4x 2.d+7/d^2-49 3.t^2-25/t^2+t-20 4.2x^2+6x+4/4x^2-12x-16 5.6-y/y^2-2y-24 You need to use parentheses to clarify the menaing of those expressions. For example, if you mean (4x-12)/4x instead of 4x - (12/4x), then the answer is 4(x-...
May 16, 2007 by mike

math,simplifying
can someone help me if possible simplifying this fraction more (2(x-5))/((x+3)(x-3)(x+1)) It wont simplify any more. okay thank you i just tjought that the bottom i could still simplify it by foiling the first two them multiplying with the last
March 4, 2007 by jas20

9th grade
Name the set(s) of numbers to which 1.68 belongs. a. rational numbers b. natural numbers, whole numbers, integers, rational numbers c. rational numbers, irrational numbers d. none of the above my answer a)rational numbers
September 20, 2010 by Ross

Math
I just wanted to check my answers with anyone willing to take the time. Identify all sets that -3/4 belongs to: a.whole #s, integers, rational #s b.rational #s c.integers, rational #s d.odd #s, whole #s, integers, rational #s Ithought it was C How many centimeters are equal to...
December 14, 2006 by Katie

6TH GR. ALGEBRA
EXTENDING THE LESSON If you add any two rational numbers, the sum is always a rational number. So, the set of rational numbers is closed under addition. Is the set of rational numbers closed under subtraction. multiplication,and division also? Explain.
December 16, 2009 by Amelia

Math(dispute to previous question)
2)Name the sets of numbers to which 457 belongs. (answer)natural,whole,integers,rational,reals My book says that every REAL number has to be rational or irrational. Blueridge said that my answer was correct except to exclude rational from my list. From what my book says I HAVE...
February 24, 2008 by Jon

math
(X^2-1)/(x-1) = (x+1)(x-1)/(x-1) = x+1. If you then subtract your original number, x, you are left with 1. The reason this doesn't work with 1 is that you would have 1-1=0 in the denominator and you cannot divide by zero. This uses the skill of simplifying rational expressions...
November 4, 2008 by Anonymous

Precalculus
I'm HOPING this is the last problem I need help on.. :-/ List the possible rational zeros of f using the rational zero theorem. f(x) = 2x^3 - x^2 + 5x + 6 I applied the rational zero theorem, but none of the factors worked :(
September 17, 2009 by Emily

algebra
Find the LCD for the given rational expressions, and convert each rational expression into an equivalent rational expression with the LCD as the denominator. 4/x-y , 5/2y-2x
July 13, 2009 by Joe

math
HELP. Help I have to decide whether these are rational or irrational. .73737373... .61611611161111..... 1/23 Can someone explain this to me? Rational numbers are just fractions. The decimal expansion of fractions will either terminate or it will become periodic after a while. ...
May 6, 2007 by Kimberly

Calculus
We're learning about different kinds of functions and I don't really understand the difference between rational and algebraic functions. I know that rational functions are functions that are a ratio of two polynomials, and algebraic functions are any functions that can be made...
September 13, 2007 by Kelly

Math - Rational Roots
1.) What are the possible rational roots of the function f(x) = 3x^4 - x - 2 2.) What are the rational roots of the following equation: x^3 - 4x^2 - 4x +16 = 0 Thank you for any help!
September 12, 2010 by Julia

Math
Identify all sets to which the number 3 belongs A. Whole numbers, integers, rational numbers B. Rational numbers C. Integers, rational numbers D. Even numbers, whole numbers, integers, rational numbers I THINK IT'S A
December 12, 2012 by Frances

Algebra
Using rational zero theorem find all rational zeros P(x)=3x^3+43x^2+43x+27 Factors: 27, -1, 3, 9, 27 Factors: 3, -1, 3 +-1/3, +-1, +-3, +-9, +-27 possible rational zero for function P(x)
April 3, 2008 by Sara

Algebra 1
Which statement about real numbers is true? Across the heading says: real numbers. The first big circle says: rational numbers The second biggest circle inside rational numbers says: integers The third circle within the rational numbers says: whole numbers. Then there is a ...
January 23, 2014 by Cassie

Math Rational Functions-Please Clarify =)
I have a question about the rational function I recently posted. Would the range still be (-∞,2)U(2,∞) if the rational function is what Reiny posted "(2x^2-18)/(x^2+3x-10)." The y-intercept confuses me because its (0,1.8) and when I look at the line it passes ...
October 15, 2012 by Enlia

Gr.11 - Rational functions graphing.
1. Identify a rational function whose graph is a horizontal line except for two holes. Graph the function. 2. Identify a rational function who graph lies entirely above the x-axis and has a single vertical asymptote. Graph the function. 3. Identify a rational function who ...
October 6, 2008 by Mae

Algebra 2
i am stuck. Prove that if a and b are rational numbers, (a + ^b)3 + (a - ^b)3 is also rational. ^ = sq root sign Thanks
March 31, 2010 by brenna

Algebra
Use the Rational Theorem to list the possible rational roots. f(x)=x^2+2x+1 f(x)=x^2-2x+5 f(x)=x^2+4x-5
March 21, 2010 by Paula

algebra
Anyone? Prove that if a and b are rational numbers, (a + ^b)3 + (a - ^b)3 is also rational. ^ = sq root sign Thanks
March 31, 2010 by brenna

maths
Prove that if p and q are rational and p is not equal to 0, the roots of the quadratic equations p x(square) + 2qx -p +2q = 0 are rational.
August 9, 2013 by Jayden Haddy

algebra
use the rational root theorem to list the possible rational roots for each of the following equations f(x)=x^2+2x+1 f(x)=x^2-2x+5 f(x)=x^2+4x-5
June 1, 2011 by Anonymous

math
If a b c are non zero,unequal rational numbers then prove that the roots of the eqn (abc²) x²+ 3a²cx+b²cx-6a²-ab+2b²=0 are rational.
July 7, 2014 by vaish

math
which statement is false? A: 3.648 reapeating=is rational B:-3 2/13=rational
February 15, 2013 by Taylor

discrete math
1)prove that if x is rational and x not equal to 0, then 1/x is rational. 2) prove that there is a positive integers that equals the sum of the positive integers not exceeding it. Is your proof constructive or nonconstructive? For 1) use the definition of a non-zero rational ...
September 28, 2006 by thisha

algebra
what are rational expressions? Why must we always be mindful of the final value of the denominator in a rational expression? For example, consider the rational expression 3x/(x2 – 16). What values in the denominator must we be mindful of? Explain why.
October 5, 2011 by thresea

Intermediate Algebra
What is the meaning term rational expression. In your word and examples explain how to divide rational expressions
May 3, 2010 by rosa

Intermediate Algebra
what is the meaning term rational expression Please give me an example how to divide rational expressions
May 4, 2010 by rosa

Criminal Justice
How is criminal behavior explicable according to rational theory? What crime control stratagies are effective according to rational theory? How could crimes like this be prevented according to the rational choice theory?
July 15, 2009 by Bibi

algebra
Use the rational zero theorem to list all possible rational zeros for the given function f(x)=x^3-4x^2-19x-14
June 8, 2013 by Sharday

maths
the denominator of a rational number is greater than the numerator by 6. if the numerator is decreased by 2 and the denominator is increased by 4 . the rational is 1/5 .Find the rational number.
June 13, 2012 by kratika

maths
the denominator of a rational number is greater than the numerator by 6. if the numerator is decreased by 2 and the denominator is increased by 4 . the rational is 1/5 .Find the rational number.
June 13, 2012 by kratika

maths
the denominator of a rational number is greater than the numerator by 6. if the numerator is decreased by 2 and the denominator is increased by 4 . the rational is 1/5 .Find the rational number.
June 13, 2012 by kratika

algebra
here is a rational expression, 20+2x/5-x for what value of x is the rational expression equal to zero? 20+2x/5-x 20/5+2x-x 4+2x-x 4+x I'm not trying to solve an equation. i am trying to find the value of x in this rational expression.
January 29, 2007 by bailey

Algebra
Does anyone know the significance of the rational zero test? Is it the rational root test? I can find the rational root test, but I don't know where I can find the reason for the rational zero test. Any clue?
March 31, 2008 by Tim

math
List all possible rational zeros of... h(x)= 2x to the (4th power) - 5x (to the third power) + 3x (to the 2nd power) + 4x - 6 Use the Rational Roots Theorem. Any root of the form p/q with p and q relatively prime must be such that p divides 6 and q divides 2. You then find the...
May 21, 2007 by Kate

math help me!!
is square root of 56 a rational number? explain uranswer using what you know about rational and irrational numbers. thnx alot!
April 13, 2011 by alexis

Math- Rational Functions
1. Some rational functions have asymptotes, others have holes, and some have both. Explain how you can identify, without graphing, which graphical features a rational function will have. Can someone explain this thoroughly ? I don't understand. thanks in advance.
October 5, 2008 by Mae

Algebra
Can someone please explain how to do these problems. 1)write a polynomial function of least degree with intregal coefficients whose zeros include 4 and 2i. 2)list all of the possible rational zeros of f(x)= 3x^3-2x^2+7x+6. 3)Find all of the rational zeros of f(x)= 4x^3-3x^2-...
August 10, 2007 by Marissa

math
1. Which of the following numbers is an example of an integer? a. -15 b. 3/5 c. ^7 d. 0.252525... 2. Which statement is FALSE? a. Every integer is a real number. b. The number zero is a rational number. c. Every irrational number is a real number. d. Every real number is a ...
August 27, 2012 by Nyla

Simplifying Rational Expressions
1. 4x-12/4x 2. d+7/d^2-49 3.t2-25/t^2+t20 4.2x^2+6x+4/4x^212x16 5.6y/y^22y24 Can someone help me with these,please,lol,I'm brain dead Try to factor where you can, then simplify as much as you can. I'll show you the first two problems; maybe you can try the rest on your own. #1...
March 7, 2007 by mike

math
hello, i have some question about rational functions. 1) are there any sites that are good in teaching graphing rational functions? 2) for the domain of the rational function it is what the denominator cannot equal to rite? for example the denominator of x^2-7x+10 can be ...
October 23, 2007 by julie

algebra
Factor this polynomial: F(x)=x^3-x^2-4x+4 Try to find the rational roots. If p/q is a root (p and q having no factors in common), then p must divide 4 and q must divide 1 (the coefficient of x^3). The rational roots can thuis be +/1, +/2 and +/4. If you insert these values you...
January 19, 2007 by bailey

chemistry
Complete the table below: Note: Make simplifying assumptions, do not use the quadratic formula. What is the pH of the solution created by combining 2.00 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? Complete the table ...
October 28, 2011 by Sara

chem
Complete the table below: Note: Make simplifying assumptions, do not use the quadratic formula. What is the pH of the solution created by combining 11.80 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? Complete the table ...
October 28, 2011 by Sara

Algebra
Build each rational expression into an equivalent rational expression with the indicated denominator. -7yt= ? ____ _____ 3x 18xyt
July 10, 2009 by Sandra

algebra
use the rational zero theorem to list the potential rational zeros of the polynomial function. Do not attempt to find the zeros. f(x)=2x^7-x^5+8x^4+52
November 20, 2012 by confused

Algebra
-7yt/3x=? /18xyt Build each rational expression into an equivalent rational expression with the indicated denominator.
March 1, 2009 by help please

algebra
Build each rational expression into an equivalent rational expression with the indicated denominator (-7yt)/(3x) =(?)/(18xyt)
July 13, 2009 by Sandra

Math
For the given functions, write the rational function, r(x) = [f(x-h)-f(x)]/h and simplify: a. F(x) = 2x+3 b. F(x) = 1/(x+1) c. F(x) = x^2 --- Just need to know that the rational function is and maybe I can do the questions. Thanks.
February 9, 2010 by Anonymous

Rational Forms
List all the possible rational zeros of f(x)=3x^3-x^2+2x=2. Please help me. I don't understand how to do this. Can someone show me please.
April 29, 2012 by Tabby

Math
Use the Rational Zeros Theorem to write a list of all possible rational zeros of the function. -2x^4+4x^3+3x^2+18
February 18, 2014 by John

ALGEBRA 2
Use the Rational Root Theorem to list all possible rational roots for each equation. Then find any actual roots. x^3 + 2x^2 + 3x + 6 = 0 (8 points)
January 31, 2012 by help pleaseeeee!!!!

Math
Simlifying Rational Expressions Reduce to lowest terms, stating the restrictions on the variable. I really don't understand the whole cancelling out the factor thing, and not cancelling out the terms. As I was having lots of trouble with this stuff this is the way I was told ...
December 10, 2011 by -Untamed-

Algebra
Rewrite the rational expression as an equivalent rational expression with the given denominator. (Both are fractions) -21 = 1 x2 -6x x(x-6)(x+5)
March 16, 2009 by Estela

rational exponents
express the third root of(8a^3y^5) using rational exponents. Please show your work!
April 20, 2012 by tabby

math
which statement is false: A: 3.648 reapating 8= is rational B:-3 2/13= is rational C: 3.605551275464...=is irrational D: -3.744= is irrational
February 15, 2013 by Taylor

Algebra plz check
Find all numbers for which the rational expression is undefined -12/5y. The rational expression is defined for every real number is this correct?
June 5, 2011 by sam

rational functions
A rational function that passes through (0,0) and (4, 8/7) has the x-axis as a horiztonal asympotote. It also has 2 vertical asymptotes x=3, x=-3. I understand that to set it up, it is y= ax+b / (x+3)(x-3). I dont understand how to solve for a and b.
January 27, 2007 by luke

Algebra
1. Classify the following number as rational or irrational: 4.1 rational? 2. True or False: The Associative Property allows you to change the order of terms in an expression. False? Thanks -MC
March 31, 2010 by mysterychicken

rational expressions
I was asked how rational expressions might be used in my daily life, and I am at a loss.
September 24, 2007 by Mary

algebra
identify whether the number is rational or irrational. then explain why it is rational or irrational. 8/17 and 21.192
August 27, 2012 by Alexius

com sci
A rational number is the form of a/b, where a and b are integers with b != 0. Develop and test a class for processing rational numbers. The class should have a numerator data member and a denominator data member. It should read an display all rational numbers in the format a/b...
November 12, 2012 by Dan

rational functions... PLEASE HELPPPPP
A rational function that passes through (0,0) and (4, 8/7) has the x-axis as a horiztonal asympotote. It also has 2 vertical asymptotes x=3, x=-3. I understand that to set it up, it is y= ax+b / (x+3)(x-3). I dont understand how to solve for a and b.
January 27, 2007 by luke

Algebra
I posted this problem last night and some one told me I was wrong. Today, two of my group members have the same answers for this problem. Can some one tell us what or where we went wrong? Using rational zero theorem find all rational zeros P(x)=3x^3+43x^2+43x+27 Factors: 27, -...
April 4, 2008 by Sara

algebra
According to the rational root theorem, which is not a possible rational root of x3 + 8x2 x 6 = 0?
January 10, 2011 by Zac

Algebra
Simplify the rational expression and write the restriction for the simplified rational expression. x^3 - 8 ----------------------- x^2 + xy - 2x - 2y
August 5, 2012 by Anne

math
A: 3.648 reapating 8= is rational B:-3 2/13= is rational C: 3.605551275464...=is irrational D: -3.744= is irrational
February 15, 2013 by Taylor

math
A: 3.648 reapating 8= is rational B:-3 2/13= is rational C: 3.605551275464...=is irrational D: -3.744= is irrational
February 15, 2013 by Taylor

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