Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 1038465: Write the equation of the quadratic function with roots 0 and 2 and a vertex at (1, 5)
Click here to see answer by Boreal(15235)

Question 1038505: Can you please help me with the following question:
A square painting canvas has sides of length 45cm. A painter masks off a rectangular area on the canvas. She uses 90cm of tape to mask 3 sides of the rectangle and the 4th side is formed by 1 edge of the canvas. The area enclosed in the rectangle is 1000cm^2. Work out the length of the shorter sides of the rectangle.
Thank you appreciate it.
Click here to see answer by josgarithmetic(39613)

Question 1038567: Is 3m+8 equals 15 is quadratic equation?
Click here to see answer by solver91311(24713)

Question 1038591: (x+7)(x-7) =-3x
Can you transform this into standard form?
Click here to see answer by josgarithmetic(39613)

Question 1038573: f(x) = x^2+4
Click here to see answer by Alan3354(69443)

Question 1038574: f(x)=x^3-9/x-3
Click here to see answer by Alan3354(69443)

Question 1038609: Solve for x.
2(5x-3) = 3x^2

Click here to see answer by Alan3354(69443)

Question 1038661: Jeremiah is going to enclose a portion of his backyard with fence for his dogs. He has 48 metres of fence. The area that can be enclosed by the fence is modelled by the function A(x)=-2x^2+48x where x is the width of area in metres and A(x) is the area in square metres. What is the maximum area that can be enclosed?

Click here to see answer by josgarithmetic(39613)

Question 1038677: Find the vertex and than graph
2x^2+8x+16=0
By using:
X= -b/2a

Click here to see answer by josgarithmetic(39613)

Question 1038677: Find the vertex and than graph
2x^2+8x+16=0
By using:
X= -b/2a

Click here to see answer by MathTherapy(10549)

Question 1038671: What values of "a" does the function f(x)=ax^2+6x+9 have two zeros, have one zero, have no zero's
thank you :)
Click here to see answer by josgarithmetic(39613)

Question 1038671: What values of "a" does the function f(x)=ax^2+6x+9 have two zeros, have one zero, have no zero's
thank you :)
Click here to see answer by MathTherapy(10549)

Question 1038671: What values of "a" does the function f(x)=ax^2+6x+9 have two zeros, have one zero, have no zero's
thank you :)
Click here to see answer by Alan3354(69443)

Question 1038676: Find the vertex and than graph
y= f(x)=2x^2+8x+16
f(x)=
Click here to see answer by Fombitz(32388)

Question 1038746: The graph of y=ax^2 + bx + c is a parabola with vertical axis of symmetry. The vertex of this parabola is (2,3) and the parabola contains the point (4,4). Find the value of y when x=6.

Click here to see answer by solver91311(24713)

Question 1038785: When can you tell that an equation is not quadratic?
Click here to see answer by josgarithmetic(39613)

Question 1038809: please help me to solve this quadratic equation 3(x2+7), thank you

Click here to see answer by Alan3354(69443)

Question 1038825: The function h(t)=-4.92t^2+17.69t+575 is used to model an object being tossed from a tall building, where h(t) is the height in meters and t is the time in seconds. Rounded to the nearest hundredth, what are the domain and range?
Click here to see answer by solver91311(24713)

Question 1038815: Imagine a plane and a cone intersecting to form a parabola.
A. Explain why the plane has to intersect the axis of the cone.please
B. Imagine the plane moving so that it keeps the same angle, but it's point of intersection with the axis moves in the direction of the apex of the cone and eventually passes through the apex. Describe what happens to the parabola and write equations that describe how the parabola changes.
Click here to see answer by solver91311(24713)

Question 1038844: 1.how are quadratic equations different from linear equation.? 2.how do you quadratic equations in standard form.? Give least 3 examples.

Click here to see answer by solver91311(24713)

Question 1038843: Solve by 2 methods, Quadratic Equation and Factoring:
2x^2-x-15=0
Click here to see answer by ikleyn(52754)

Question 1038879: Solve by two methods, quadratic equation and factoring:
2x^2-x-15=0
Click here to see answer by ikleyn(52754)

Question 1038879: Solve by two methods, quadratic equation and factoring:
2x^2-x-15=0
Click here to see answer by MathTherapy(10549)

Question 1038912: then |p|
Click here to see answer by ikleyn(52754)

Question 1038942: What is the equation for a parabola if the vertex is (4, -3)
Click here to see answer by Fombitz(32388)

Question 1038950: Question 1.1. When rolling a die, what is the probability of getting a 4 or a 2? (Points : 2)

Click here to see answer by Alan3354(69443)

Question 1038949: Question 1.1. When rolling a die, what is the probability of getting a 4 or a 2? (Points : 2)

Click here to see answer by Alan3354(69443)

Question 1038959: how to make this sentence in a quadratic equation of standard form, 3x-2x2=7

Click here to see answer by addingup(3677)

Question 1038980: I see that i can only put a question in algebra. I also see that i am failing grade 11 mixed math and the exam is tomorrow. I currently know very little, some of the basics. Mainly need help in Sequences, series and annuities. That is what is weighed most on the exam but that doesn't mean i dont need help on everything. Send help. This is an SOS.
Click here to see answer by Alan3354(69443)

Question 1039066: Help would be appreciated for the following question:
A coach driver has to travel 560 km. The driver A02 usually drives at an average speed of r km/h.
He can arrive 45 minutes earlier if he increases his average speed by 6 km/h. Find the value of r correct to the nearest whole number.
Thanks so much
Click here to see answer by ankor@dixie-net.com(22740)

Question 1039419: how can you write 5-3x=2xsqaured in standard form?

Click here to see answer by Edwin McCravy(20054)

Question 1039441: 3x+2=y;y=-1

Click here to see answer by Fombitz(32388)

Question 1039486: A store sells 90 ski jackets for $200 dollars each. A survey indicates that for each $10 decrease in price, five more jackets will be sold.
a) Find the number of jackets sold and the selling price, when the total revenue is $17 600
b) What is the lowest price the will give revenues of at least 15 600? How many jackets would be sold at this price?
Click here to see answer by Aldorozos(172)

Question 1039498: A particular painting is a square 4x+7 inches on each side. Find and expand an expression for the area of the painting. Your answer should be simplified with all like terms combined. If necessary, use '∧' for exponents (e.g. x∧2 for x2).
Click here to see answer by josmiceli(19441)

Question 1039484: Edna paid at least Php1200 for a pair of pants and blouse. The cost of pair of pants is Php600 more than the cost of the blouse.

Click here to see answer by chen.aavaz(62)

Question 1039641: The equation h equals minus 16 t squared plus 58 t plus 3 models the height of a baseball after is has been hit where
h is the ending height and t is the time in seconds.
Click here to see answer by Alan3354(69443)

Question 1039736: 4x+y=9 given table for equation
x
-1 y 1, -3
3
2
Click here to see answer by Alan3354(69443)

Question 1039767: What steps do you use to simplify radicals? Give an example step by step.
Click here to see answer by Boreal(15235)

Question 1039766: What is the Quadratic formula? What is it used for? Give an useful example.

Click here to see answer by Aldorozos(172)

Question 1039962: What equation would represent the area of the cemented part of the car park?
Click here to see answer by ikleyn(52754)

Question 1040150: n=2
Click here to see answer by Alan3354(69443)

Question 1040161: Sheryl says that the solution of the quadratic equation w�=49 and w�+48=0 are the same.do you agree with sheryl? Justify your answer.
Click here to see answer by josgarithmetic(39613)

Question 1040171: The Area of a triangle is 70 square centimeters.
Find the length of the base and the altitude if the base is 13 cm longer than the altitude
Click here to see answer by josgarithmetic(39613)

Question 1040183: Suppose that the roots of x^2+px+q=0 are rational numbers and p,q are integer, then show that the roots are integers.
Plzz help thanks in advance
Click here to see answer by Edwin McCravy(20054)

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