Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 240471: A rectangular garden is 20 ft longer than it is wide. Its area is 2925 . What are its dimensions?
Click here to see answer by solver91311(16885)

Question 240464: do you now gow to write an equation of a parabola with a max value of 4 when x is 1 and one x intercept at 2... help with this specific and ones similar to it please
Click here to see answer by stanbon(57347)

Question 240473: A rectangular garden is 20 ft longer than it is wide. Its area is 2925 . What are its dimensions?
Click here to see answer by solver91311(16885)

Question 240473: A rectangular garden is 20 ft longer than it is wide. Its area is 2925 . What are its dimensions?
Click here to see answer by checkley77(12569)

Question 240469: a farmer with 4000 meters of fencing wants to encloce a rectangular plot that borders on a river.
*if the farmer does not fence the side along the river, what is the largest area that can be enclosed?
*provide the area function used and graph it. Identify the maximum and interpret what it means.
Click here to see answer by checkley77(12569)

Question 240509: -9t + 2 =56
Click here to see answer by College Student(505)

Question 240648: How do you find the turning point (vertex) of a Quadratic function, not using complete the square?
Click here to see answer by rapaljer(4667)

Question 240628: x^2-5x+35=0
it has no real solutions but what would be the irrational solution?
Click here to see answer by jsmallt9(3296)

Question 240581: The problem is: (x+5)/3 + 4/x = 5/6 My instructions are to use the quadratic formula to solve. I think I am supposed to multiply by the common denominator, but I am not sure.
Click here to see answer by jsmallt9(3296)

Question 240777: Let f(x)=3x^2-8x. find a such that f(a)=-5.
Click here to see answer by jsmallt9(3296)

Question 240797: I need to a step by step solving this equation:0= x^2+15x-1350 , This is from a word problem using quadratic equation solving cost per person.... I know the answer but I do not know how they got it....help please
Click here to see answer by vleith(2825)

Question 240789: Hello,
I need some help to:

1. Solve the following equation using quadratic formula
2x^2-3x-1=0
The solution set is? ________

Thanks!!

Click here to see answer by vleith(2825)

Question 240344: A horse breeder wants to construct a corral next to his horse barn that is 50 feet long, using all of the barn as one side of the corral. He has 250 feet of fencing available and wants to use all of it. What is the maximum area of the corral?
There's a picture of it here: http://math.library.wisc.edu/reserves/114/114-nenciu-09spex01.pdf (question #5)
Help? I'm so confused!
Click here to see answer by ankor@dixie-net.com(15652)

Question 240809: x^2-4x-12=0
Click here to see answer by JimboP1977(308)

Question 240782: The pitch P of a musical tone varies inversely as its wavelength W. One tone has a pitch of 283 vibrations per second and a wavelength of 12 ft. Fine the wavelength of another tone that has a pitch of 348 vibrations per second.
Click here to see answer by Alan3354(30993)

Question 240861: Use the quadratic equation to solve the equation:
-2.8x= -3.8x^=1.4
Please help me with this, I get stuck everytime when it comes to simplifying and finishing the problem. Thank you so much!
Click here to see answer by checkley77(12569)

Question 240880: I got this reply back for my question....I can't find an answer unless I am doing something wrong. Thanks for checking into it for me!
Question 240789: Hello,
I need some help to:
1. Solve the following equation using quadratic formula
2x^2-3x-1=0
The solution set is? ________
Thanks!!
Answer by vleith(1971) About Me (Show Source):
Click here to see answer by Alan3354(30993)

Question 240910: x^4+10x^2+9=0
solve as quadratic function?
my assumption is
x^2=-1 and x^2=-9
which there is no real solution but i dont think i am right
Click here to see answer by Earlsdon(6287)

Question 240936: How do you solve the following quadratic equations:
-6(u+5)^2=120

3s^2-1=7s^2
Click here to see answer by stanbon(57347)

Question 240936: How do you solve the following quadratic equations:
-6(u+5)^2=120

3s^2-1=7s^2
Click here to see answer by edjones(7569)

Question 240893: Determine the maximum area of a triangle, in square centimeters, if the sum of its base and its height is 10 cm.
Click here to see answer by checkley77(12569)

Question 240939: Polynomials
(y^3)^2

Please help me
Thank you
Click here to see answer by edjones(7569)

Question 241001: find the root of this equation by factoring:
x+8x=-16
Click here to see answer by stanbon(57347)

Question 241028: Solve the following equation using quadratic formula:
x^2+12+35=0
The solution set is { , }

x=(-12±√(〖12〗^2+35))/2

(x+5)(x+7)= 12/2= {5,7}
thanks for you help
Vicki
Click here to see answer by rapaljer(4667)

Question 241069: how to solve this equation using direct variation? 5x-6y=0
Click here to see answer by Edwin McCravy(8909)

Question 241157: "You are told to build a rectangular fence along side a building. You have only 80 feet of fencing. The company wants the maximum amount of area enclosed. Find the dimensions that will lead to the most area"
All I need is the equation and I understand the problem from that point.
Click here to see answer by ankor@dixie-net.com(15652)

Question 241366: find the vertex, the line of symmetry,
the maxiumum or minimum value of the quadratic
function and graph the function
f(x)=7-x2 and find zeros
Click here to see answer by stanbon(57347)

Question 241365: the base of a triangular sail is 20m shorter than it's height.
the area is 150m2. find the base and height of the sail.

Click here to see answer by unlockmath(1599)

Question 240518: x^2+6x+6=0 solve with quadratic formula
Click here to see answer by Alan3354(30993)

Question 241529: if the vertex of the graph of a quadratic function lies in quadrant III and the graph opens down, how many x-intercepts doe sthe graph have?
Click here to see answer by rapaljer(4667)

Question 241545: The height, h, of a cricket ball above the ground after t seconds is given by the eqaution h = 20t - 5t^2.
When is the ball 25 metres above the ground?

Need help! Don't know what to do! Maths exam tomorrow
Click here to see answer by jsmallt9(3296)

Question 241535: find a polynomial f(x) of degree 3 that satisfies the following condition: -2 is a zero of multiplicity 3; f(-1) = 4
Click here to see answer by jsmallt9(3296)

Question 241561: Efendi can buy an exact number of footballs with RM120. However, if the price of the football is reduced by RM6, he can buy an extra football. Determine the original price of the football.
Click here to see answer by Theo(3464)

Question 241543: Here's my question.
Graph each parabola. Identify the vertex, intercepts, and the maximum or minimum y-value.
f(x) = 16 – x^2
Once I figure out the problem then I should be able to graph it I hope. Thanks.
Click here to see answer by edjones(7569)

Question 241499: Genelle and Eljen can paint a room together in 4 hours. Working alone, Genelle can paint the room in two hours less than Eljen can. Find how long it takes Eljen to paint the room alone.
Click here to see answer by checkley77(12569)

Question 241570: BY REDUCTION OF RE1PERKG IN THE PRICE OF SUGAR,MOHAN CAN BUY 1kg SUGAR MORE FOR RS56.FIND THE ORIGINAL PRICE OF SUGAR PERkg.

Click here to see answer by stanbon(57347)

Question 241607: Molly’s age is twice Anita’s. If the sum of the squares of their ages is 80, then translate these words into an algebraic equation to determine their ages?
Click here to see answer by josmiceli(9678)

Question 241648: A rectangular picture frame measures 20cm by 30cm. A new frame is to made by increasing each side length by the same amount. The resulting enclosed area is to be 1064cm squared. Find the dimensions of the new picture frame.
Click here to see answer by unlockmath(1599)

Question 241667: solve the equation x squared minus 8x plus 25 = 0
Click here to see answer by vleith(2825)

Question 241501: A swimming pool holds 600 cubic meters of water. It can be drained at the rate of 9 minutes faster than it can be filled. If it takes half an hour to fill it than to drain it, find the drainage rate.
Click here to see answer by ankor@dixie-net.com(15652)

Question 241713: 5x²-2x=3 What is the solution set
Click here to see answer by College Student(505)

Question 241722: what are some problems that you can send me for the california exit exam ?
Click here to see answer by Alan3354(30993)

Question 241663: how do i create an x and y table of values to this quadratic equation- x-3x-4=0
Click here to see answer by College Student(505)

Question 241727: The value of the discriminant is ________?
27x² = 18x – 3
How many solutions are there?
Are they a) rational?
b) Irrational
c) Imaginary solutions?

Click here to see answer by JimboP1977(308)

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