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 195151: can you help me please with these questions. on page 363 #35, 36, 37, 38, 39, 40 Click here to see answer by Alan3354(30959)

 Question 195165: Properties of logoritiris I need help Solve this equation 7. log7(3x+5)-log7(x-5)=log78 Click here to see answer by solver91311(16868)

 Question 195192: Common logartithms Express each logarithns in terms of common logarithms Log463 Click here to see answer by stanbon(57219)

 Question 195306: The lines below are perpendicular. If the slope of the green line is -1, what is the slope of the red line? Click here to see answer by solver91311(16868)

 Question 195362: Write each equation in logarithmic form. 18. 7^3=343 Click here to see answer by atlantasvolleyball(2)

 Question 195366: Evaluate each expression. 26. Log81^3 log81^3=y 81^y=3 I need help on sloving the rest of it, thanks Click here to see answer by Alan3354(30959)

 Question 195457: Rewrite each function to make it easy to graph using a translation. Describe the graph. [] means its in square root!! please help me y=3[-27x-27]+4 y=[16x-32] and can you tell me how many numbers did is shift right/left?? THANKS Click here to see answer by stanbon(57219)

 Question 195715: I hope i picked the right section to put this problem in. alright here is the problem, i am totally lost on how to do this: (x/x+4) - (2/x-1) = (20/x^2+3x-4) HELP! Click here to see answer by jim_thompson5910(28476)

 Question 195959: Divide: [(2x^2 + 5x -12)/(9x^2 - 16)]/[(2x^2 - 7x + 6)/3x^2 - x - 4)] Any help will be appreciated. Thanks Click here to see answer by jim_thompson5910(28476)

 Question 196008: I am stuck can you help me. Thank-you 1. Write a quadrtic equation in the variable x having the given numbers as solutions. Type the equation in standard form, ax^2+bx+c=0 Solution:10. only solution The equation is _=0. 2.Write a quadratic equation in the variable x having given numbers as solutions. Type the equation in standard form, ax^2+bx+c=0 -sqrt7.8sqrt7 The equation is_=0. Click here to see answer by stanbon(57219)

 Question 196191: write a function that models each variation. x=3 and y=12 when z=2. z varies directly with y and inversely with x. Click here to see answer by Edwin McCravy(8880)

 Question 196266: Simplify expression. assume that all variables are positive... (27/8)^2/3 Click here to see answer by stanbon(57219)

 Question 196424: y varies inversely as x and y = 120 when x = 8 Click here to see answer by Alan3354(30959)

 Question 196550: Explain how we evaluate an algebraic expression for given values of the variables. How would we evaluate the expression "3x - 4y + 9" when x = 2 and y = 5? Click here to see answer by checkley77(12569)

 Question 196760: Simplify each rational expression. State any restrictions on the variable. 1. 3x^2-12/x^2-x-6 I got 3(x-2)/(x-3) x cannot be equal to 3 and -2. I'm not sure if my restrictions are correct. Could someone please check them? Simplify each sum or difference. 4(x+3)/(x-1)(x+2) + (x-2)(x+3)/(x-1) I got 4(x+3)+(x-2)(x+3)/(x-1) which is equivalent to 4(x+3)+x^2+x-6/(x-1) I'm not sure if I did this correctly... Could someone check? Thank you! Click here to see answer by RAY100(1637)

 Question 196761: Solve each equation. Check each solution. 1. -x/4=2x/3 I got x=-5 and it is extraneous. 2.2x-4/x-5=0 I got x=-1 and it is extraneous. Could someone please check these? Thank you! Click here to see answer by RAY100(1637)

 Question 196714: An individuals income varies with his or her age. The following table shows the median income I of individuals of different age groups within the United States for 1997. For each age group, the midpoint represents the independent variable, x. For the age group "65 years and older," we assume that the midpoint is 69.5. Click here to see answer by solver91311(16868)

 Question 196775: 1. State any restrictions on the variables. 4x-2x^2/x-2 Click here to see answer by solver91311(16868)

 Question 196788: A faucet can deliver water rapidly than a drain can remove it. IF the sink is empty, the drain and the faucet is opened then the sink fills in 4 minutes. The drain is able to empty a full sink in 2 minutes longer than the faucet can fill the sink when the drain is closed. What are the tines needed far each to fill or drain if it works alone? Click here to see answer by solver91311(16868)