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

Tutors Answer Your Questions about Rational-functions (FREE)

Question 635506: find all of the roots x^2 -1=0
Click here to see answer by ewatrrr(10682)

Question 635499: Find all of the roots: 4x^4=12x^2
Click here to see answer by ewatrrr(10682)

Question 635518: Rational Expressions and Equations
I really need assistance with this. Thank you.

7..A sample of 320 mobile phone batteries contained 16 defective batteries. How many defective batteries would you expect to find in a sample of 3000?

Click here to see answer by solver91311(16897)

Question 635531: Use interval notation to express the solution set.
Solve 8<2x<=10
Click here to see answer by lwsshak3(6523)

Question 635571: how do you identify asymptotes?
Click here to see answer by MathLover1(6646)

Question 635590: I am confused about how to go about solving this problem ..
Analyze the graph of this following function
R(x) = x^3 - 125 / x^2 - 49
Click here to see answer by graphmatics(170)

Question 635592: Please show me how to solve the following inequality. And I have to write the solution in interval notation
x^3 + 11x^2 < 0
Click here to see answer by MathLover1(6646)

Question 635607: I need help on the step by step process on how to analyze the graph of this following function ?
R(x)= x^3 - 125 / x^2 - 49 ?
Click here to see answer by lwsshak3(6523)

Question 635672: Suppose, you are the manager (marketing) at a showroom of motorcycles. Various brands of motorcycles are displayed and sold out at the showroom. If you are asked to put an import order for motorcycle that is most sellable, what measure of central tendency will you use to identify the item?
Click here to see answer by reviewermath(535)

Question 635717: Rational Expressions...I really need help with this thank you so much in advance.
A sample of 320 mobile phone batteries contained 16 defective batteries. How many defective batteries would you expect to find in a sample of 3000?
Click here to see answer by ewatrrr(10682)

Question 635739: Rational expressions..thanks for your help in advance.
10. When travelling a fixed distance, speed is inversely proportional to travel time. Suppose a certain trip takes 3 hours at 50 miles per hour. How long would the same trip take at 60 miles per hour?
Click here to see answer by ewatrrr(10682)

Question 635737: If Mary can paint one room in 100 minutes, and Jake can paint one room in 150 minutes, how long will it take if they work together?
*rational expressions*
Click here to see answer by ewatrrr(10682)

Question 635757: Rational expression
9. When travelling at a fixed speed, travel time is directly proportional to distance travelled. If you go 120 miles in 3 hours, how long would a trip of 200 miles take?
Thank you for help in advance greatly appreciated
Click here to see answer by checkley79(3056)

Question 635831: 17. Suppose y varies inversely with x, and y=15 when x=40. Find an equation of variation for x and y.
I appreciate your help in this very much.
Click here to see answer by stanbon(57412)

Question 635829: Suppose y varies directly with x, and y=36 when x=20. Find an equation of variation for x and y.

I need assistance with this problem thanks in advance.
Click here to see answer by KMST(1874)

Question 636126: 19. One high-speed jet travels 100 miles per hour faster than another. When one plane travels 2000 miles, the other travels 1500 miles. Find the speed of each plane.

Thanks so much in advance for your help
Click here to see answer by ankor@dixie-net.com(15663)

Question 636164: I need some help with this please thank you so much
one high-speed jet travels 100 miles per hour faster than another. When one plane travels 2000 miles, the other travels 1500 miles. Find the speed of each plane
Click here to see answer by solver91311(16897)

Question 636236: i need to find the vertical asymptotes of
i don't know what to do after i get to this part

Click here to see answer by solver91311(16897)

Question 636339: 7. A sample of 320 mobile phone batteries contained 16 defective batteries. How many defective batteries would you expect to find in a sample of 3000?

thanks so much and have a terrific weekend!
Click here to see answer by math-vortex(472)

Question 636012: f(x)=2x^2-5x-5/x-2 find the vertical asymptote and the slant asymptote
Click here to see answer by jsmallt9(3296)

Question 636403: One high-speed jet travels 100 miles per hour faster than another. When one plane travels 2000 miles, the other travels 1500 miles. Find the speed of each plane
thanks so much for your help in advance have a great weekend
Click here to see answer by lwsshak3(6523)

Question 636335: rational expressions..I need help with this thank you so very much and have a blessed day.
19. One high-speed jet travels 100 miles per hour faster than another. When one plane travels 2000 miles, the other travels 1500 miles. Find the speed of each plane.
Click here to see answer by MathTherapy(1430)

Question 636466: Find the slope of the line passing through (-3, -4) and (3, -2).
Click here to see answer by jim_thompson5910(28598)

Question 636547: Write the partial decomposition for the rational expression.
(3x)/(x-3)^2
Click here to see answer by Alan3354(30993)

Question 636592: One high-speed jet travels 100 miles per hour faster than another. When one plane travels 2000 miles, the other travels 1500 miles. Find the speed of each plane.

Could you please help? Thanks so much.
Click here to see answer by MathLover1(6646)

Question 636618: The intensity of sound (in Watts per square meter, or "W"/"m" ^2) varies inversely with the distance from the source. Suppose that a particular sound has in intensity of 90 "W"/"m" ^2 at a distance of 5 meters. How much farther away would you find the intensity at 40 "W"/"m" ^2?

thanks so much for your help on this I really appreciate your time :)
Click here to see answer by stanbon(57412)

Question 636041: Write a rational function f that has the following characteristics.
a) Vertical asymptote: x=2
b) Slant asymptote: y=3x+1

Click here to see answer by jsmallt9(3296)

Question 637056: Solve the equations graphicaly by finding intersections. Confirm your answer algebraically.
|t-8|=2
|2x+5|=7
Help?!
Click here to see answer by solver91311(16897)

Question 637056: Solve the equations graphicaly by finding intersections. Confirm your answer algebraically.
|t-8|=2
|2x+5|=7
Help?!
Click here to see answer by MathLover1(6646)

Question 637077: Factor completely.
2.) ac+cd-ab-bd.
I started with c(a+d)- b(a+d). Then, I don't know where to go from there to solve it!!
Click here to see answer by MathLover1(6646)

Question 637074: Factor completely.
1.) (x-3)^2(2x+1)^3 + (x-3)^3(2x+1)^2
Click here to see answer by Tatiana_Stebko(1326)

Question 637087: I need help finding the maximum y-value on the graph of y=f(x) when f(x)=-x^2+7x+3
Click here to see answer by Tatiana_Stebko(1326)

Question 637221: Find the real numbers x and y that make the equation true.
2+3i=x+yi
Click here to see answer by reviewermath(535)

Question 637375: Factor the sum or difference of two cubes.
z^3+64

Click here to see answer by DrBeeee(378)

Question 637375: Factor the sum or difference of two cubes.
z^3+64

Click here to see answer by Alan3354(30993)

Question 637374: Factor the sum or difference of two cubes.
y^3-8
Click here to see answer by solver91311(16897)

Question 637439: Anna is going to build a patio. She wants the patio to be 20 feet by 35 feet. What is the perimeter of the patio in yards?
Click here to see answer by checkley79(3056)

Question 637764: Write the simplest polynomial with zeros: 2i, square root of 3, and 4.
Click here to see answer by stanbon(57412)

Question 637896: what is the graph to y=tan(θ/2)
Click here to see answer by josmiceli(9697)

Question 638006: Which one of these is a rational equation:
Select one:
(x-3)/(2x+3)
3a+5
2/3
All of the above
Click here to see answer by solver91311(16897)

Question 638069: if -3y=2x-7 and x=1 whats the answer?
Click here to see answer by MathLover1(6646)

Question 638428: If f(x) = x^2 - 1, how would I describe in words what 5f(x)+3 would do to the graph of f(x)?
Click here to see answer by stanbon(57412)

Question 638389: On a 1287 mile long road trip in windy conditions, a family calculates their fuel economy to be 18 miles per gallon over the 2 days it takes to reach their destination. On their 2-day return trip, with a similar wind at their backs, their calculations show a fuel economy of 26 miles per gallon. Calculate the expected fuel economy of their vehicle in ideal (non-windy) conditions (f) as well as the influence of the wind (w) in miles per gallon.
Click here to see answer by josmiceli(9697)

Question 638594: I do not understand why -9/19 is a rational number since it works out to -0.47368421052.... could you please explain. I thought rational numbers must end or repeat.
Click here to see answer by stanbon(57412)

Question 638760: x + 3 1/4= 2 1/2
Click here to see answer by checkley79(3056)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055