Questions on Algebra: Quadratic Equation answered by real tutors!

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Question 45058: !x-9 9
Click here to see answer by Nate(3500)

Question 45056: !x-2/3! < 2
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Question 45056: !x-2/3! < 2
Click here to see answer by stanbon(75887)

Question 45055: !x!<7
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Question 45054: 1<3x + 4 _< 16
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Question 45054: 1<3x + 4 _< 16
Click here to see answer by stanbon(75887)

Question 45053: -1<2x-5<7
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Question 45052: 1/2x-2/3 >2
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Question 45051: 1/2 X - 2/3 > 2
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Question 45050: 2x _< 7
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Question 45049: All paints with watercolors on a sheet of paper 20 ijn wide by 15 in high. He then places this sheet on a mat so that a uniformly wide strip of the mat shows all around the picture. The perimeter of the mat is 102 in. How wide is the strip of the mat showing around the picture??
Click here to see answer by Earlsdon(6294)

Question 44996: 10/x - 12/x-3 + 4=0
Click here to see answer by abhijitvakil(7)

Question 45216: A farmer has a rectangular garden plot surrounded by 200 ft of fence. Find the lenght and with of the gfarden if its area is 2400ft(square)
Click here to see answer by checkley71(8403)

Question 45213: An executive in an engineering firm earns a monthly salary plus a christmas bonus of $ 8500. If she earn a total of $ 97,3000 per year. What is her monthly salary?
Click here to see answer by checkley71(8403)

Question 45214: Phyllis invested $ 12,000, a portion earning a simple interest rate of 4 1/2% per year and the rest earning a rate of 4% per year. After one year the total interest earned on these investment was $525. How much money did she invest at each rate??
Click here to see answer by checkley71(8403)

Question 45227: !x!_> 3
Click here to see answer by rapaljer(4671)

Question 45215: A farmer has a rectangular garden plot surrounded by 200 ft of fence. Find the lenght and with of the gfarden if its area is 2400ft(square)
Click here to see answer by Nate(3500)

Question 45223: !X!< 7
Click here to see answer by rapaljer(4671)

Question 45209: Al paints with watercolors on sheet of paper 20 in widw by 15 in high. He then places this sheet on a mat so that a uniformily wide stip of the mat shows all around the picture. The perimeter of the mat is 102 in. How wide is the strip of the mat showing around the picure???
Click here to see answer by tutmath(14)

Question 45361: factors for
a)6xsquared-5x-5+0
b)3xsquared-7x+3
c) xcubed+2xsquared-3x
Click here to see answer by stanbon(75887)

Question 45367: x^2+x+1=0
x^2+x+5=0
Click here to see answer by stanbon(75887)

Question 45371: Directions: Solve the equation by completing the square. Express any complex numbers using i notation.

2x^2+4x+1=0
Click here to see answer by stanbon(75887)

Question 45379: x2 +4x +4 = 7 It says solve for x.
I need help on this question.

Click here to see answer by fractalier(6550)

Question 45428: Find all real solutions of the quadratic equation.
(10y)square - 16y + 5 = 0
Click here to see answer by Nate(3500)

Question 45430: solve the equation by completing the square.
(3x)square -6x-1 = 0
Click here to see answer by Nate(3500)

Question 45433: A rectangular bedroom is 7 ft longer than is wide. Its area is 228 ft (square) What is the width of the room??
Click here to see answer by Nate(3500)

Question 45434: A large plywood box has a volume of 180 ft ( square). Its length is 9 ft greater than its height, and its width is 4 ft less than its height. What are the dimensions of the box?
Click here to see answer by Nate(3500)

Question 45436: !x-2!/3< 2
Click here to see answer by Nate(3500)

Question 45431: Find all real solutions of the equation
(x)square/x-1 + 1/x+2 = 5/4
Click here to see answer by Nate(3500)

Question 45429: solve the equation by completing the square.
(x)square + 2x-2 = 0
Click here to see answer by Nate(3500)

Question 45439: A pair of points is given.
(a) plot the points in a coordiunate plane.
(b) find the distance between them.
(c) find the midpoint of the segment joins them.
(5,0), (0,6)
Click here to see answer by tutorcecilia(2152)

Question 45435: (X) square_> 9
Click here to see answer by tutorcecilia(2152)

Question 45435: (X) square_> 9
Click here to see answer by stanbon(75887)

Question 45438: A pair of points is given.
(a) plot the points in a coordiunate plane.
(b) find the distance between them.
(c) find the midpoint of the segment joins them.
(2,-1), (4,3)
Click here to see answer by tutorcecilia(2152)

Question 45427: Find all real solutions of the quadratic equation.
(25x)square + 70x + 49 = 0
Click here to see answer by checkley71(8403)

Question 45473: Here is the problem I need the answer to. All it says is Expand the Square...
(5t-2)^2
Click here to see answer by Nate(3500)

Question 45410: Using the quadratic formula solve the equation
26r-2=3r^3
Click here to see answer by stanbon(75887)

Question 45483: I have to make a graph for this equation,help please
17. Type A cream is 18% butterfat and type B cream is 24% butterfat. Set up a table to help you determine how many quarts of each type of cream must be used to create a 90 quart mixture that is 22% butterfat.

Can you also solve this problem?
18. Solve the problem in question 17.

A40 quarts of Type A cream and 50 quarts of Type B cream are needed.
B60 quarts of Type A cream and 30 quarts of Type B cream are needed.
C24 quarts of Type A cream and 66 quarts of Type B cream are needed.
D30 quarts of Type A cream and 60 quarts of Type B cream are needed.
E18 quarts of Type A cream and 72 quarts of Type B cream are needed.
F35 quarts of Type A cream and 55 quarts of Type B cream are needed.

Click here to see answer by Nate(3500)

Question 45490: Find the two consective positive integers such that the sum of their
squares is 85.
I didn't find anything about integers in the section 10-3. I don' understand
I hope someone can explain this to me.
Thanks
Cheryl

Click here to see answer by Nate(3500)

Question 45494: Garden area=30ftx20ft=600ft sq
let
uniform width = x.x = x2
Therefore,
x2 + 400 = 600
x2 = 600 -400
= 200
x = � SQRT(200)
x = � 14.14 (ignore negative value; no such value for width)
Therefore,
x = 14.14

Click here to see answer by justin_lohok(3)

Question 45489: I don't know why I am so confused.
I need help with this problem.
16. 3x2-2x +1 = 0
Thank you
Cheryl Sanders
Click here to see answer by adamchapman(301)

Question 45590: Evaluate the function at the indicated values
g (x) = 1-x/1 + x
g(2), g(-2), g(1/2),g(a), g(a-1),g(-1)
Click here to see answer by Nate(3500)

Question 45593: Hi again,
My professor gave us this quadratic equation for homework:
a) x^2 - 2Rx + R^2 =0
He is asking us to solve for x and I am lost.
Thanks,
Louis

Click here to see answer by stanbon(75887)

Question 45594: Evaluate the piecewise defined function at the indicated values.
f(x)={x(square) if x<0
{x+1 if x_>0
f(-2), f(-1), f(0), f(1),. f(2)
Click here to see answer by stanbon(75887)

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