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Tutors Answer Your Questions about Rational-functions (FREE)
Question 191112: The function, p(d) = 1 + d/33, gives the pressure, in atmospheres (atm), at a
depth d in the sea (d is in feet). Note that p(0) = 1 atm, p(33) = 2, and so on. Find the pressure at 120 feet. The pressure at 120 feet is ___ atm.
(type an integer or a simplified fraction)
Click here to see answer by solver91311(5072)   |
Question 191110: The function H described by H(x) = 2.75x + 71.48 can be used to predict the height, in centimeters, of a woman whose humerus ( the bone from the elbow to the shoulder) is x cm long.
Predict the height of a woman whose humerus is 36 cm long.
The predicted height of a woman whose humerus is 36 cm long is____cm
Click here to see answer by solver91311(5072) |
Question 191335: I would really really appreciate any help I could get with the following.
R(x)=x^3-1/x^2-x-2
I know how to factor it, but need help with stating the domain and making a graph with labeled intercepts and asymtotes. Please help. Thanks.
Click here to see answer by stanbon(26291)  |
Question 191414: Please help! Completely lost.
Problem- y= x(squared) + x - 6 over 3x(squared) - 12
It says that I need to find and classify any points of discontinuity.
I also have to do this problem- y= x over x(squared) - 9
Thanks for you're help,
Leilani
Click here to see answer by jim_thompson5910(13794) |
Question 191609: 1.Find all the asymptotes for the graph of the rational function f(x) = 3x^2 -1/ x+3
2. Find all the asymptotes of the graph of the rational function f(x) = 4x^2 + 7/ 3(x+1)(x-2)
3. Find all the asymptotes of the graph of the rational function f(x) = 3/x^2
Click here to see answer by stanbon(26291) |
Question 191958: solve
6/(x^2-9)- 1/(x-3) = 1
the 6 is the numerator and (x^2-9) is the denominator for the first part of the problem and 1 is the numerator for the second fraction and (x-3) is the denominator and 1 is the answer? im not sure, im just suppose to solve it
thank you
Click here to see answer by jim_thompson5910(13794) |
Question 191966: add, and simplify if possible
(x^2-9x+20)/(x^2-3x-10) + (x^2-2x-8)/(x^2+4x-32)
they are two fractions, (x^2-9x+20) is the numerator of the first fraction and (x^2-2x-8) is the numerator of the second fraction
thank you! :)
Click here to see answer by orca(409) |
Question 192141: For each rational function, identify any holes or horizontal or vertical asymptotes of its graph.
y= -2(x-8)/(8-x)
I have tried a couple different things, but I am not sure if any of them are correct.
First attempt:
There would be a vertical asymptote at x=8.
There would be a horizontal asymptote at y=-2.
Second attempt:
There would be a hole at (8,2)
Third attempt:
There would vertical asymptote at x=8.
There would be a horizontal asymptote at y=2.
I am extremely confused any help would be greatly appreciated!
Click here to see answer by RAY100(1637) |
Question 192035: In the equation 5x/(x+1), what is the end behavior? We are being taught the Ratey method and when I get to the E part of Ratey, i simplify it to 5/1. Does that make it top heavy? If so how do you determine the vertical asymptote?
Click here to see answer by RAY100(1637) |
Question 192553: please note that when it says D(o) it means that the o is a little number kind of like a base number.
The lens equation for a camera is 1/F=1/D(i) +1/D(o) , where f is the focal length of the lens, D(i)is the distance between the lens and d(o) the film, and is the distance between the lens and the object. For a certain camera, an object that is 18 cm from the lens is in focus when the lens is 9 cm from the film. What is the focal length of the lens? : please note that when it says D(o) it means that the o is a little number kind of like a base number.
Click here to see answer by solver91311(5072) |
Question 192775: Could you please help me and explain these problems. 1. To determine the number of deer in a game preserve, a conservation catches 545 deer tags them and let them loose. Later, 836 deer are caught, 209 of them are taged. How many deer are in the preserve? __deer. I do I add 545 and 209 to get the answer to this problem. 2. Lisa can shovel snow from her driveway in 40 mintues. Jim can do the same job in 50 mintues. How long would it take Lisa and Jim to shovel the driveway if they work together. __mintues. Do I do the same as in the frist question. 3. q+7/2/+/q-7/7=7 is this correct No solution since the answer can be only 7
Click here to see answer by ankor@dixie-net.com(6693)  |
Question 192959: I been working on these problems and I still having a problem with the answers. Please Help! Problem 1. 9/r-8/9/r+8 Problem 2.r^2-4/r^2-4r+4 Problem 3. 10/y-5/10/(y-5)^2 Problem 4.Find all numbers for which the radional expression is undefined.2/v-5
Click here to see answer by jim_thompson5910(13794) |
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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
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