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

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 Algebra: Rational Functions, analyzing and graphing Solvers Lessons Answers archive Quiz In Depth

 Question 348328: Hi, how can I solve this problem? (6x^2+13x+5)/ 2x+1 Click here to see answer by checkley77(12569)
 Question 348328: Hi, how can I solve this problem? (6x^2+13x+5)/ 2x+1 Click here to see answer by Earlsdon(6287)

 Question 348439: the length of a rectangle is three more than twice the width. Write and simplify an expression for the perimeter of the rectangle in terms of the width Click here to see answer by checkley77(12569)

 Question 348679: What is the least common denominator of the rational expression 1/35, (r+3)/10r^2 Click here to see answer by stanbon(57290)

 Question 348666: The chemistry lab keeps two acid solutions. One is 20% acid solutin and the other 35% acid solution. How much 20% and 35% acid solution should be used to prepare 25 liters of a 26% acid solution? Click here to see answer by Fombitz(13828)

 Question 349108: 2x-3y+4z=1 x+3y-2z=4 3x-y+z=2 So far i have tried this.. 2x-3y+4z=-1 x+3y-2x=4 = 3x+0+2z=3 and then i tried another problem to solve that one.. x+3y-2z=4 x+3y-2z=4 3(3x-y+z=2) = 9x-3y+3z=6 and my answer to tis solution was.. 10x-0+z=10 in my opinion it isn't right. Click here to see answer by Fombitz(13828)
 Question 349108: 2x-3y+4z=1 x+3y-2z=4 3x-y+z=2 So far i have tried this.. 2x-3y+4z=-1 x+3y-2x=4 = 3x+0+2z=3 and then i tried another problem to solve that one.. x+3y-2z=4 x+3y-2z=4 3(3x-y+z=2) = 9x-3y+3z=6 and my answer to tis solution was.. 10x-0+z=10 in my opinion it isn't right. Click here to see answer by earmstrong620(4)

 Question 348214: (5√x-2) - 3 = (√19x-29) I've been able to solve problems with two rationals, but the 5 added before the first one is causing me problems. step-by-step solutions please! Click here to see answer by nyc_function(2733)

 Question 349088: Solve for x, leaving solution on a number line and in interval notation. x^2-9<0 Click here to see answer by Fombitz(13828)

 Question 349089: Solve for x, leave the solution on a number line and in interval notation 6x-5>but equal to 6/x Click here to see answer by Fombitz(13828)

 Question 349516: Hi I'm not sure how to solve this problem and I have looked in my book and can't find similar problems. 1 1 5 ____ - ___ = ___ 4x-12 x^2-9 x-3 Note: (X^2) is x squared minus 9. I tried to make these look like fractions but it should read; 1 over 4x minus 12 minus 1 over x squared minus nine equals 5 over x minus three. Thank You!!!! Click here to see answer by mananth(12270)
 Question 349516: Hi I'm not sure how to solve this problem and I have looked in my book and can't find similar problems. 1 1 5 ____ - ___ = ___ 4x-12 x^2-9 x-3 Note: (X^2) is x squared minus 9. I tried to make these look like fractions but it should read; 1 over 4x minus 12 minus 1 over x squared minus nine equals 5 over x minus three. Thank You!!!! Click here to see answer by jim_thompson5910(28549)

 Question 349642: I need me solving a problem. v(t)= 4t^2-5t+2 / t+3 v(0)v(-2)v(7) Click here to see answer by Fombitz(13828)

 Question 349668: So I'm working on a problem a-4 / 3a-12. I worked it out to a-4 / 3(a-4). By taking out the GCF which was 3 for the bottom. Then a-4 would cancel each other out leaving 3. When I looked at the answer it says its 4 how could that be? Click here to see answer by Fombitz(13828)

 Question 349781: I need help with 9x/(x^2-8)=-16. I need to find two solutions for x and I have tried multiplying both sides by the denominator to no avail. I imagine simplifying to something looking like (x+y)(x-z)=0 is in order but how do I get there and is that even an appropriate simplification? Click here to see answer by stanbon(57290)

 Question 349848: Please help me solve: x-4/x+3 is less than or equal to x+2/x-1 I need to find the zeros, graph the x-intercepts, and give the solution in interval notation and set builder notation. Thank you so much! Brad Click here to see answer by edjones(7569)

 Question 349846: Please help me solve: -2/5-x is greater than or equal to 0. I need to find the zeros, graph the x-intercepts, and give the solution in interval notation and set builder notation. Thank you so much! Brad Click here to see answer by edjones(7569)

 Question 350032: If x=.2 when y=1485 and y varies inversely as x, find y when x=27. Click here to see answer by Fombitz(13828)

 Question 350184: please check my equation, let me know if I have any mistakes thank you 9(y+1)-3y=2(3y+1)-8 9y+9-3y=6y+2-8 6y+9=6y-6 -9 -9 6y =6y-15 Click here to see answer by edjones(7569)

 Question 350190: please check my equation and let me know if I'm missing a step. Thank you 3(6-4x)=2(-6x+9) 18-4x =-4x+18 +4 +4 18 = 18 Click here to see answer by Fombitz(13828)

 Question 350532: Simplify by taking the roots of the numerator and the denominator. Assume that all expressions under radicals 8x^14/y^3 Click here to see answer by Fombitz(13828)

 Question 350728: What is the inverse of the function f(x)=27 x^3. Click here to see answer by nyc_function(2733)

 Question 350737: Evaluate the function at the given value of the independent variable and simplify. g(x) = 3x-5 ; g(x+1) Answer choices: A. 3x-1 B. 3x-5 C. 3x-2 D. 1/3x-5 Click here to see answer by haileytucki(390)

 Question 350736: Given functions f and g, perform the indicated operations. f(x)=9x+1, g(x)=6x-3 Find f - g Answer choices: A. -3x-15 B. 11x-15 C. 3x-3 D. -3x+3 Click here to see answer by Fombitz(13828)

 Question 350991: Chapter 10 10.3 64. Find all real solution to each equation. Thank you much. x^2 + x + sqrt (x^2+x)-2=0 70. Find all real and imaginary solution to each equation. b^2 + 13b^2 + 36=0 48. Find b2 4ac and the number of real solutions to each: -3x^2+7x=0 Click here to see answer by edjones(7569)

 Question 351102: A tourist bus travels 120 kilometers to its destination. The average speed returning is twice the average speed going and the time for a round trip is 5 hours. What is the average speed of the bus in going to its destination? Thank you so much. Click here to see answer by ewatrrr(10682)

 Question 351176: please help me solve this: The function S(n) expresses the height of a stack of cups in terms of the number of cups,(n),in the stack. Now,make a function g(h) that expresses the number of cups in a stack in terms of the height,h, of the stack. Click here to see answer by stanbon(57290)

 Question 351612: If f(3a - 1) = 12a - 7, find f(x) Click here to see answer by solver91311(16877)

 Question 351618: find the equations of both lines in the graph.... The picture shows a graph with two lines that cross eachother. I dont really understand what kind of graph i should be using. Click here to see answer by solver91311(16877)

 Question 351524: Find the amplitude and period of: 2 cos4t+ 5 sin4t, show steps. Click here to see answer by Fombitz(13828)