Questions on Algebra: Quadratic Equation answered by real tutors!

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Question 558865: A rectangular pool has dimensions of 40 ft. and 60 ft. If the pool has a patio around it that equals the area, how wide is the distance from the pool edge to the patio edge?
I got the answer x=10, however the question ask the distance from the pool edge to the patio edge?
What is the answer? 80?
Click here to see answer by mananth(16946)

Question 558969: Y=x^2 + 6x + 9
Identify the minimum value
Click here to see answer by josmiceli(19441)

Question 559179: a vollyball player hits a ball and it goes straight up into the air with an initial velocity of 16 feet per second from an initial height of 4 feet. find the function that describes the height of the ball in terms of the t and determine the time at which the ball reaches its maximum height.
Click here to see answer by stanbon(75887)

Question 559340: how do you find the vertex of a quadratic equation using the intercept form?
Click here to see answer by stanbon(75887)

Question 559483: I have the answer to this problem but I am not sure how they got it...
g(x)= 4x^2 - 3x + 1
answer;
3/8 +- square root (7)/8i
Can someone explain how they did this?
Thank you
Click here to see answer by Alan3354(69443)

Question 559574: Is this even considered to be a quadratic equation?? I do not understand by what they mean to solve this.. Do they mean distribute and then solve? But how? Please help! I am very frustrated! Thanks!
(x-3)(5x+2)= -13(x-3)
Click here to see answer by ankor@dixie-net.com(22740)

Question 559961: A ball is thrown upward from ground level. Its height, h, in feet above the ground after t seconds os h=48t-16t^2. Find the maximum height of the ball. Find the time it takes for the ball to fall back to the ground.

Click here to see answer by nerdybill(7384)

Question 560000: what is the table of values for the following equation 12x + -2y = -34
Click here to see answer by kkasko(46)

Question 560125: During the first part of a trip, a canoeist travels 34 miles at a certain speed. The canoeist travels 9 miles on the second part of the trip at a speed 5mph slower. The total time for the trip is 5hrs. What was the speed on each part of the trip? Type an integer or decimal and round to the nearest hundredth.
Click here to see answer by ankor@dixie-net.com(22740)

Question 560202: find the x and y intercepts for:
x2+9x-10=0
Click here to see answer by rfer(16322)

Question 560238: find the number a for which x=2 is a solution of the given equation.
x+8a=46+ax-5a
Click here to see answer by mananth(16946)

Question 560286: what is the two numbers that multiplies to get 4 and adds to make 6
Please help
Click here to see answer by bucky(2189)

Question 560290: 64k^2+112k+49=0 I've tried several times to solve this equation. Would you please solve it and I'll practice others. Thank you!!
Click here to see answer by stanbon(75887)

Question 560290: 64k^2+112k+49=0 I've tried several times to solve this equation. Would you please solve it and I'll practice others. Thank you!!
Click here to see answer by bucky(2189)

Question 560249: How do you create a quadratic equation with only one solution? What does it mean to only have one solution for a quadratic equation?
The solution for my quadratic equation is -2. Please determine the quadratic equation and show all of your steps
Click here to see answer by KMST(5328)

Question 560369: please solve this equation 64k^2+112k+49=0, thank you
Click here to see answer by subudear(62)

Question 560369: please solve this equation 64k^2+112k+49=0, thank you
Click here to see answer by kkasko(46)

Question 560416: Hello I need help on this one problem.
How do you write a quadratic function in standard form for the parabola that goes through the points of (-6,-2), (-4,-2), (-3,4).
Click here to see answer by scott8148(6628)

Question 560574: x^2+17x+42=0
Click here to see answer by jim_thompson5910(35256)

Question 560575: x^2+8x-20=0
Click here to see answer by jim_thompson5910(35256)

Question 560583: Write a quadratic equation for the solutions x=9 and x=27

Write a quadratic equation for the solutions x=4 and x=16
Thank You
Click here to see answer by jim_thompson5910(35256)

Question 560583: Write a quadratic equation for the solutions x=9 and x=27

Write a quadratic equation for the solutions x=4 and x=16
Thank You
Click here to see answer by josmiceli(19441)

Question 560610: Write a quadratic function whose graph has the given characteristics: x-intercepts (-1,0),(7,0) and a point on the graph: (3,2).
I tried making an equation using both intercepts.
x=-1 x=7
x+1=0 x-7=0
(x+1)(x-7)=0
x^2-6x-7=0
So far I have this equation, but I don't know how to make it go through the point (3,2). If anyone could please help me, I would greatly appreciate it.
Click here to see answer by scott8148(6628)

Question 560666: y^2=2/7y+4/7
Click here to see answer by unlockmath(1688)

Question 560838: Create a quadratic equation with these two solutions:
x=4 and x=6
Click here to see answer by jim_thompson5910(35256)

Question 560972: y = x2 � 4x
Use the values of x provided in the table to find the y values
Click here to see answer by mananth(16946)

Question 560674: Hopefully someone can point out where i am going wrong:

--
I let U = x^3
--

--

--

--
= +/-
--
U = 1, 8
---
Sub x^3 back for U
---
x=1
---
x=2
---
Problem is the book shows the answer to be:
+/-

Click here to see answer by richard1234(7193)

Question 560651: Why do you think it is important to know how to do the different methods for solving quadratic equations? Thank You
Click here to see answer by richard1234(7193)

Question 561072: x^2+12x+4=0
Solve for X
Click here to see answer by jim_thompson5910(35256)

Question 561177: What is the minimum value of f(x)=2x^2+5x-1
Click here to see answer by nerdybill(7384)

Question 561415: Factor : x2+21x+54
Click here to see answer by jim_thompson5910(35256)

Question 561564: what type and how many solutions will a quadratic equation have when the discriminant is a perfect square? A non-perfect square?
Click here to see answer by richard1234(7193)

Question 561604: x^2-2x-13=0
I loved algebra, but it's been 30 years since I last used it.
Click here to see answer by jim_thompson5910(35256)

Question 561548: I am trying to solve the equation 20/(x+1)-30/(x+6)=4 I have worked this down to 2(2x^2+19x-33) I do not know how to factor this though.
I have several problems like this to do and am having trouble with them.
Click here to see answer by ankor@dixie-net.com(22740)

Question 562001: Find the slope of the line containing the given points. ( square root of 2,-4) and (0.56,-4)
Click here to see answer by josmiceli(19441)

Question 562000: can you help me solve this quadratic equation by factoring step by step?
2x^2=15-x

Click here to see answer by scott8148(6628)

Question 562125: is 4x(3+x) quadratic?

Click here to see answer by KMST(5328)

Question 562173: the solutions are x=-5, x=0 what is the quadratic equation?
Click here to see answer by mananth(16946)

Question 562581: Twelve is the product of x and negative 4.
Click here to see answer by solver91311(24713)

Question 562955: Write a quadratic equation in the variable x having the given numbers as solutions. Type the equation in standard form,ax^2+bx+c=0.
The solutions are -5,1
Thank You
Click here to see answer by mananth(16946)

Question 562960: Give exact and approximate solutions to three decimal places.
y^2-2y+1=81
a. The solutions are y= -8,10
b. There are no approximate solutions since the solutions are integers.
Since the solutions I got are integers, I'm confused as to whether my answer is right.
Thank You

Click here to see answer by mananth(16946)

Question 563142: Please help me solv the eguation

Click here to see answer by richard1234(7193)

Question 563249: I am doing factoring using the gcf and I am stuck on a problem or equation. this is the equatuion 18m4+27m6. If you could answer me real soon it will be muchly appreciated. I have a test tomorrow and would like to have the answer as soon as possible

Thanks
Click here to see answer by stanbon(75887)

Question 563566: Solve for x:

Click here to see answer by mananth(16946)

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