Questions on Algebra: Quadratic Equation answered by real tutors!

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Question 334094: A carpenter is building a rectangular room with a fixed perimeter of 312 feet, what dimension would yield the maximum area? What is the maximum area?
Click here to see answer by jrfrunner(365)

Question 334102: use the five step problem solving process
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a cubic box measuring 55 centimeters on each side. If the content are worth $0.17 per cubic centimeters. How much are the content worth? (use v=5^3)
Click here to see answer by Alan3354(69443)

Question 334099: use the five step problem solving process
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the earth is approximately 92,900,000 miles from the sun. if 1 mile =1.61x10^3. what is the distance to the sun?
Click here to see answer by Alan3354(69443)

Question 334101: use the five step problem process
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a square support unit in a t.v. set is made with a side measuring 5 centimeters. A new model being designed for the upcoming year will have a large square with a side measuring 5.3 centimeters. By how much will the area of the square be increase?
Click here to see answer by solver91311(24713)

Question 334116: Given the function f(x)=5x^2-10x-4, what is the domain of f?
Click here to see answer by Edwin McCravy(20054)

Question 334116: Given the function f(x)=5x^2-10x-4, what is the domain of f?
Click here to see answer by solver91311(24713)

Question 334153: Please help me solve 4 + 4/x - 3/x^2 divided by 4 - 8/x + 3/x^2
Click here to see answer by vleith(2983)

Question 334180: I need help solving an equation please. I need to solve the equation
The square root of x over the square root of x -3 plus 5 over the square root of x.
Click here to see answer by solver91311(24713)

Question 334223: need help solving x2 − 2x − 13 = 0 using indian method
Click here to see answer by solver91311(24713)

Question 334267: Tickets=-0.2^2+12+11
Does the graph of this equation open up or down? How did you determine this?
Click here to see answer by solver91311(24713)

Question 334288: Use algebraic tests to check the following for symmetry with respect to the axes and the origin. 2x-8^20=0 "^20=power of
Click here to see answer by stanbon(75887)

Question 334490: t^-4/t^-6
answer t^2
Click here to see answer by solver91311(24713)

Question 334492: simplify
(2p^-2q^2/3p^2q)^3
Click here to see answer by vleith(2983)

Question 334385: Please help me solve this equation: .
Click here to see answer by jim_thompson5910(35256)

Question 334516: how to solve by what amount does the sum of the roots exceed the product of the roots of the equation (x _ 5)(x + 2) = 0?
Click here to see answer by Alan3354(69443)

Question 334554: Solve each equation by factoring or by using the property if x^2=k, then x=+or-the square root of K:
(4n-1)^2=16
Click here to see answer by jim_thompson5910(35256)

Question 334561: Use the quadratic formula to solve each:
y^2+13y+22=0
x(2x+3)-1=0
x^2+24=0
Click here to see answer by jim_thompson5910(35256)

Question 334640: write a quadratic equation when the solutions are 3 and 7
Click here to see answer by solver91311(24713)

Question 334640: write a quadratic equation when the solutions are 3 and 7
Click here to see answer by benazir.sj@gmail.com(109)

Question 334675: A newspaper delivery person in a car is tossing folded newspapers from the car window to driveways. the speed of the car is 30 feet per secound and the driver does not slow down. the newspapers are tossed horizontally from a height of 4 feet above the ground. the height of the papers as they are thrown can be modeled by y=-16t^2+4 and the distance they travel to the driveway is d=30t.
a. how long does it take for a newspaper to land?
b. from how many feet before the driveway must the papers be thrown?
c. the delivery person starts to throw the newspapers at an angle and the height of the papers as they can now be modeled by y=-16t^2+12t+4. how long does it take the papers reach the ground now?
Click here to see answer by solver91311(24713)

Question 334729: X squared = x+42
Confused and not able to come up with an answer that works. I would appreciate your help with this one.
Click here to see answer by mananth(16946)

Question 334784: 20x=400 x=?
can u explain this
Click here to see answer by benazir.sj@gmail.com(109)

Question 334780: can you help me with this problem with a step by step of the eqaution 5x-4/5x+4=2/3
Click here to see answer by benazir.sj@gmail.com(109)

Question 334780: can you help me with this problem with a step by step of the eqaution 5x-4/5x+4=2/3
Click here to see answer by mananth(16946)

Question 334761: Find the Least Common Denominator of the following:
2x/7x^2+8x+1 and 1/5x^2-4x-1
I am trying to help my cousin and can't remember how to solve these. Thank you!
Click here to see answer by mananth(16946)

Question 334835: Find all the roots of the following polynomial in the complex number system.
f(x)=x^3-8x^2+36x-80

Click here to see answer by Fombitz(32388)

Question 334882: (4x-5)/(2-x) = -(9/2)
Click here to see answer by Fombitz(32388)

Question 334809: 2x^2+9x+4=0
I could really use some help with this problem.
Click here to see answer by scott8148(6628)

Question 334906: Here's my question: What's the answer to this equation?
13/8x+3/2+x=-123/16
Click here to see answer by ankor@dixie-net.com(22740)

Question 334931: 4x^3 is greater or less than 16x
Click here to see answer by Fombitz(32388)

Question 334936: Solve x2 - 4x - k = 0.
a) For what values of k the equation has only one solution?
b) For what values of k are the solutions real?
c) For what values of k are the solutions imaginary?
Click here to see answer by Alan3354(69443)

Question 334995: How do i work out 16x2-8x+1=0 and also 2x2=4x+1
Click here to see answer by jim_thompson5910(35256)

Question 334995: How do i work out 16x2-8x+1=0 and also 2x2=4x+1
Click here to see answer by checkley77(12844)

Question 335131: Can you explain and do the steps to solve this equation:
Click here to see answer by solver91311(24713)

Question 335140: I just cant solve this equation.... 25x^2+16=40x
Click here to see answer by stanbon(75887)

Question 335168: √x^4+ 6x^2 + 9
Click here to see answer by benazir.sj@gmail.com(109)

Question 335091: ( ((((a)^2)^2)*4a^4) / ((3/2a))^8 ) + (-sqrt(-1))
Click here to see answer by Fombitz(32388)

Question 335216: (square root of x +1) to the power of 2
Only x is squared not the plus one. And I need help simplifying it.
Click here to see answer by Fombitz(32388)

Question 333948: a quadratic function has an equation that is distinguished by having a highest power of what on "x", the independent variable
Click here to see answer by Fombitz(32388)

Question 335279: Determine the value of y in the following equation: y = sec (3) (0)
Click here to see answer by Fombitz(32388)

Question 335324: Determine the nature of the solutions of the equation. x^2+6=0
Click here to see answer by Fombitz(32388)

Question 335323: Determine the nature of the solution of the eqation. 7t^2-8t=0
Click here to see answer by solver91311(24713)

Question 335436: Snookers lumber can convert logs into either lumber or plywood. In a given day, the mill turns out twice as many units of plywood as lumber. It makes a profit of $20 on a unit of lumber and $50 on a unit of plywood. How many of each unit must be produced and sold in order to make a profit of 412, 360?
Please help, I am so lost!
Click here to see answer by solver91311(24713)

Question 335403: solve by factoring
x^2-13=0
Click here to see answer by Fombitz(32388)

Question 335604: Determine the equation of the axis of symmetry.
y = -5x2 - x + 9
what is the answer to this ? ive tried multiple times and im almost out of timeeeee ?
Click here to see answer by Alan3354(69443)

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, 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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