Questions on Algebra: Quadratic Equation answered by real tutors!

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> Questions on Algebra: Quadratic Equation answered by real tutors!      Log On


   



Tutors Answer Your Questions about Quadratic Equations (FREE)


Question 23332: Please help me with this inequality
x-x^2 < or equal to 0
Thanks,
pabblo

Click here to see answer by philberg99(10) About Me 

Question 23328: 3/x+2 > 2/x-1
I need Graphing Help Also
Thanks,
M

Click here to see answer by philberg99(10) About Me 

Question 23331: a^2+2a < or equal to 15
Thanks,
P

Click here to see answer by philberg99(10) About Me 

Question 23329: Can you help me with this problem and help me sketch a graph
y = x^2 + 2x -24
Thanks,
M

Click here to see answer by philberg99(10) About Me 

Question 23330: y=-x^2-3x-2
Thanks,
M

Click here to see answer by rapaljer(4671) About Me 

Question 23326: 3x - x^2 > 0
Please Help

Click here to see answer by dkspoet(13) About Me 
Question 23326: 3x - x^2 > 0
Please Help

Click here to see answer by rapaljer(4671) About Me 

Question 23327: x^2 + 25 < 10x
I need Graphing Help Also
Thanks,
PH

Click here to see answer by rapaljer(4671) About Me 

Question 20906: I have been asked to solve the equations simultaneously, and i believe one of them to be a quadratic equation, and so am stuck - please can you help me?
x-y=3
2
x -10y-6=0
P.s. If you could show me how to achieve the answer, possibly it would help me understand it?
Thankyou so much.

Click here to see answer by venugopalramana(3286) About Me 

Question 23342: It cost Acme Manufacturing C dollars per hour to operate its golf ball division. An analyst has determined that C is related to the number of golf balls produced per hour, x, by the equations C = 0.009x^2 - 1.8x + 100. What number of balls per hour should Acme produce to minimize the cost per hour of manufacturing these golf balls?
Click here to see answer by stanbon(75887) About Me 

Question 23384: I am to find the product. Can someone help??
4a^3 (3ab^3 – 2ab^3)

Click here to see answer by rapaljer(4671) About Me 

Question 23385: I need to find the product. Help me please??
(2x + 1/3)(5x – 2/3)

Click here to see answer by rapaljer(4671) About Me 

Question 20884: Write a matrix equation equivalent to the system of equations.
9x + 9y = -9
5x - 2y = 6
Cramer's rule.
6x + 4y = -4
y = -3x - 7

Click here to see answer by venugopalramana(3286) About Me 

Question 23388: I submitted this wrong the correction is,

Solve each inequality. State the solution set using interval notation and graph it.

x^2 – x – 20 < 0

Click here to see answer by AnlytcPhil(1806) About Me 

Question 23392: Thank you in advance for you help with this equation. I really appreciate it.
Question 1
The total profit (in dollars) for sales of x rowing machines is given by P(x) = -0.2x^2 + 300x - 200. What is the total profit if 500 are sold? For what value of x will the profit be at a maximum?
Question 2
Solve the equation by using the quadratic equation.
y^2 + 6y + 4 = 0
Question 3
Solve the equation
b+17/b^2-1 - 1/b+1 = b-2/b-1

Click here to see answer by stanbon(75887) About Me 

Question 23343: Thank you in advance for helping me with the following problems. I am struggling with these and they are due tonight by midnight. So any help given would be appreciated.
We are working with quadratic equations, functions and inequalities with graphing.
1. 5x - 10x^2 < 0 Solve each inequality, state the solution set using interval notation and graph the solution set.

Click here to see answer by stanbon(75887) About Me 

Question 20880: 1. SOLVE USING THE SUBSTITUTION METHOD.
x + y = 1
x - y = -3
2. Evaluate the determinant along row 1
a b
b a
3. Given matrix A, find the minor of the indicated element.
element: a 12
-2 -1 0
6 5 1
5 4 4
4. Determine the order of the matrix.
9 5 -3
-4 6 1



Click here to see answer by venugopalramana(3286) About Me 

Question 23410: 10c2-21c=-4c+6
Click here to see answer by rapaljer(4671) About Me 

Question 23587: x^2+25<10x I need some help on this one also.
Click here to see answer by venugopalramana(3286) About Me 

Question 23586: 3x-x^2> 0 please can somone help me with these?
Click here to see answer by venugopalramana(3286) About Me 

Question 23585: I need your help
The problem is 4x^2-8x greater than or equal to 0.

Click here to see answer by venugopalramana(3286) About Me 

Question 23541: I have 2 series,

x 1,2,3,4,5,6,7,8,9,10,11,12
y 85,60,160,140,235,200,270,200,225,100,60,-140

What is the quadratic equation for above series ?
Thanks,

Click here to see answer by stanbon(75887) About Me 

Question 23538: I have two problems that I just can't seem to get worked out. I submitted one before but the wrong numbers were used in the equation by the solver. These problems are due tonight by midnight. Any help give will be gravely appreciated.
Question 1
5x - 10x^2 < 0
Question 2
x^2 - x > 0
Solve the inequality, state the solution set in inteval notation and graph it.

Click here to see answer by stanbon(75887) About Me 

Question 23683: I cant seem to figure out this equation can you assist me?
Question #1
(2x-3)(3x+2)(x-2)(x-7/8)=0
Solve each equation.

Click here to see answer by rapaljer(4671) About Me 

Question 23680: Please show me how to solve the inequality stating the solution set using intervla notation and graph the solution set. Any help and explanation will be appreciated.
4x^2 - 8x ≥ 0

Click here to see answer by venugopalramana(3286) About Me 

Question 23687: Please help me solve the following quadratic equation. Any help or guidance you offer is greatly appreciated because I am very confused with these types of problems.
Find the vertex and intercepts for each quadratic function, and graph.
y = -x^2 + 2x + 3
Thank you

Click here to see answer by Earlsdon(6294) About Me 
Question 23687: Please help me solve the following quadratic equation. Any help or guidance you offer is greatly appreciated because I am very confused with these types of problems.
Find the vertex and intercepts for each quadratic function, and graph.
y = -x^2 + 2x + 3
Thank you

Click here to see answer by venugopalramana(3286) About Me 

Question 23670: Hi, I am really having a hard time analyzing this one, I hope someone could help me on this and I would really really appreciate it so much.
Question 1 : Explain a sequence of steps that can be used to solve any quadratic equation in the QUICKEST WAY.
Question 2 : Derive the quadratic formula used in solving quadratic equations.

Click here to see answer by Earlsdon(6294) About Me 
Question 23670: Hi, I am really having a hard time analyzing this one, I hope someone could help me on this and I would really really appreciate it so much.
Question 1 : Explain a sequence of steps that can be used to solve any quadratic equation in the QUICKEST WAY.
Question 2 : Derive the quadratic formula used in solving quadratic equations.

Click here to see answer by venugopalramana(3286) About Me 

Question 23682: how would you graph the following fuctions?
1) y=1/2(x-3)2 +1
and y=-(x+4)2 -5 ?

Click here to see answer by rapaljer(4671) About Me 

Question 23797: Suppose that the length of a certain rectangle is 2 cm more than three times its width. If the area of the rectangleis 56 square centimeters, find its length and width.
Click here to see answer by Paul(988) About Me 

Question 23779: Please help me solve the following quadratic equation. Find the vertex and intercepts for quadratic function, and graph: y+=+x%5E2+%2B+2x+-+24
Click here to see answer by stanbon(75887) About Me 

Question 23801: The combined area of a square and a rectangle is 64 square centimeters. The width of the rectangle is 2 cm more than the length of a side of the square and the length of the rectangle is 2 cm more than its width. Find the dimensions of the square and the rectangle.
thanks a lot.. i'll really appreciate it if someone answered this one..
thanks again..

Click here to see answer by venugopalramana(3286) About Me 

Question 23814: Help me find the SQRT(49x^10)thank you.
Click here to see answer by arunpaul(104) About Me 

Question 23815: Here is another one,
5/SQRT(8)

Click here to see answer by AnlytcPhil(1806) About Me 

Question 23811: please help???
find the product
(2t+5)(3t-4) and (4x-1)^2

Click here to see answer by arunpaul(104) About Me 

Question 23875: last one ,
Factor completely
x^2+16=8x

Click here to see answer by Earlsdon(6294) About Me 

Question 23873: Factor completly
3x^2-18x-48

Click here to see answer by Earlsdon(6294) About Me 

Question 23813: Simplify
(-20^5b^13)/(5a^4b^14)

Click here to see answer by mrslong(1) About Me 

Question 23871: factor completely
y^2+yt-12t^2

Click here to see answer by Alwayscheerful(414) About Me 

Question 23939: Solve the equation
(b+17)/(b^2 –1) – 1/(b+1) = (b-2)/(b-1)

Click here to see answer by longjonsilver(2297) About Me 
Question 23939: Solve the equation
(b+17)/(b^2 –1) – 1/(b+1) = (b-2)/(b-1)

Click here to see answer by AnlytcPhil(1806) About Me 

Question 23937: Perform the indicated operation
[(a-4)/5] / [(a^2 – 16)/3]

Click here to see answer by longjonsilver(2297) About Me 

Question 23943: It says solve the proportion
9/4 = (2x+1)/(x+2)

Click here to see answer by AnlytcPhil(1806) About Me 

Question 23948: Please help me I have two more problems left and I am have a tough time answering them both here is one
Factor out the greatest common factor (GCF)
3y^5 + 15y^3 – 9y^4 + 5y^2

Click here to see answer by rapaljer(4671) About Me 

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, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445, 23446..23490, 23491..23535, 23536..23580, 23581..23625, 23626..23670, 23671..23715, 23716..23760, 23761..23805, 23806..23850, 23851..23895, 23896..23940, 23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 27136..27180, 27181..27225, 27226..27270, 27271..27315, 27316..27360, 27361..27405, 27406..27450, 27451..27495, 27496..27540, 27541..27585, 27586..27630, 27631..27675, 27676..27720, 27721..27765, 27766..27810, 27811..27855, 27856..27900, 27901..27945, 27946..27990, 27991..28035, 28036..28080, 28081..28125, 28126..28170, 28171..28215, 28216..28260, 28261..28305, 28306..28350, 28351..28395, 28396..28440, 28441..28485, 28486..28530, 28531..28575, 28576..28620, 28621..28665, 28666..28710, 28711..28755, 28756..28800, 28801..28845, 28846..28890, 28891..28935, 28936..28980, 28981..29025, 29026..29070, 29071..29115, 29116..29160, 29161..29205, 29206..29250, 29251..29295, 29296..29340, 29341..29385, 29386..29430, 29431..29475, 29476..29520, 29521..29565, 29566..29610, 29611..29655, 29656..29700, 29701..29745, 29746..29790, 29791..29835, 29836..29880, 29881..29925, 29926..29970, 29971..30015, 30016..30060, 30061..30105, 30106..30150, 30151..30195, 30196..30240