Friday

December 19, 2014

December 19, 2014

Number of results: 1,622

**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*

**math**

Which statement is true? A. All irrational numbers are also rational numbers. B. Half of the irrational numbers are also rational numbers. C. One-third of the irrational numbers are also rational numbers D. Irrational numbers cannot be classified as rational numbers. Is the ...
*September 26, 2014 by Anonymous*

**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*

**Math**

Find all possible rational roots using the rational root theorem. x^4 - 3x^2 + 12 = 0 Plus/minus 1, 2, 3, 4, 6, 12?
*November 16, 2014 by Anonymous*

**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**

Which statement is false? A. The number zero is a rational number. B. Some irrational are also rational numbers. C. Every irrational number is a real number. D. Every integer is a rational number Is the answer C?
*October 17, 2014 by happy*

**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 HELP PLEASE**

Which statment is false? A. The number zero is a rational number. B. Some irrational numbers are also rational numbers. C. Every irrational number is a real number D. Every integer is a rational number Is the answer C?
*October 17, 2014 by anonymous*

**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*

**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 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!!!!*

**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*

**8th Grade Math**

Please help! Which statement is false? A. The number zero is a rational number. B. Some irrational numbers are also rational numbers. C. Every irrational number is a real number. D. Every integer is a rational number. I thinks its D. Please help!
*October 13, 2014 by haylee *

**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*

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