Questions on Algebra: Quadratic Equation answered by real tutors!

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> Questions on Algebra: Quadratic Equation answered by real tutors!      Log On


   



Tutors Answer Your Questions about Quadratic Equations (FREE)


Question 1032102: Can you create a graph of a quadratic equation that has a negative discriminant?

Click here to see answer by josgarithmetic(39617) About Me 

Question 1032104: Can you create a graph of a quadratic equation that has zero as the discriminant?
Ty
:)

Click here to see answer by josgarithmetic(39617) About Me 

Question 1032101: Can you create a graph of a quadratic equation that has a positive discriminant?

Click here to see answer by josgarithmetic(39617) About Me 

Question 1032190: Can you create me a graph of a quadratic equation that has zero as a discriminant.
Please & ty

Click here to see answer by Alan3354(69443) About Me 
Question 1032190: Can you create me a graph of a quadratic equation that has zero as a discriminant.
Please & ty

Click here to see answer by josgarithmetic(39617) About Me 

Question 1032297: Find a quadratic model for the set of values: (-2, -20), (0, -4), (4, -20)
Click here to see answer by josgarithmetic(39617) About Me 
Question 1032297: Find a quadratic model for the set of values: (-2, -20), (0, -4), (4, -20)
Click here to see answer by solver91311(24713) About Me 

Question 1032404: how do I solve f(x)=-(x-3)^2 as a quadratic function?
Click here to see answer by josmiceli(19441) About Me 

Question 1032428: Two numbers differ by 3 . The sum of their reciprocal is 7/10 find the numbers
Click here to see answer by stanbon(75887) About Me 
Question 1032428: Two numbers differ by 3 . The sum of their reciprocal is 7/10 find the numbers
Click here to see answer by josmiceli(19441) About Me 

Question 1032439: What are the coordinates of the vertex for y=-3x^2+24x+3
Thank you!

Click here to see answer by stanbon(75887) About Me 

Question 1032429: The perimeter of a square and a rectangle are equal. One side of the rectangle is 11 cm and the area of the square is 4 cm^2 more than the area of the rectangle. Find the side of square
Click here to see answer by jorel555(1290) About Me 

Question 1032474: A rectangle has a length of 13 inches less than 6 times its width. If the area of the rectangle is 6105 square inches, find the length of the rectangle.
Click here to see answer by stanbon(75887) About Me 

Question 1032508: Student council is selling chocolate bars as a fundraiser. The revenue R, in thousands of dollars, can be modeled by the function R = -25x^2 + 100x + 1500, where x is the number of chocolate bars sold in hundreds. How many cases must the student council sell to maximize their revenue?
Thanks

Click here to see answer by ikleyn(52781) About Me 
Question 1032508: Student council is selling chocolate bars as a fundraiser. The revenue R, in thousands of dollars, can be modeled by the function R = -25x^2 + 100x + 1500, where x is the number of chocolate bars sold in hundreds. How many cases must the student council sell to maximize their revenue?
Thanks

Click here to see answer by Newb(4) About Me 
Question 1032508: Student council is selling chocolate bars as a fundraiser. The revenue R, in thousands of dollars, can be modeled by the function R = -25x^2 + 100x + 1500, where x is the number of chocolate bars sold in hundreds. How many cases must the student council sell to maximize their revenue?
Thanks

Click here to see answer by MathTherapy(10552) About Me 

Question 1032519: Determine the two points of intersection of the following y=4x-1 and y=2x^2+5x-7
Thanks

Click here to see answer by ikleyn(52781) About Me 

Question 1032520: A soccer ball is kicked from the goal crease. The ball travels along the path modelled by the equation h=-.05d%5E2%2B3d, where h is the height of the ball in meters and d is the horizontal distance in meters.
a) How far does the ball travel horizontally?
My answer: 0.5d%5E2
d = 6
The ball travels 6m before returning to the ground
b) If a 1.85 m tall soccer player stands 40 m away from the goalkeeper, how far over his head will the ball travel?
c) What is the maximum height the ball will travel to?
Thanks

Click here to see answer by stanbon(75887) About Me 

Question 1032514: Hailey is riding a hot-air balloon and accidentally drops her purse over the side. The table shows the height of her purse at different times. When will her purse reach the ground? Show calculations.
Time (s) - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
Height (m) - 1000, 995, 980, 955, 920, 875, 820, 755, 680, 595, 500
Thanks

Click here to see answer by robertb(5830) About Me 

Question 1032577: The area of a rectangular serving tray is given by the trinomial 3x2+17x−56. The tray's width is 3x−7. What is the length of the tray?
Click here to see answer by fractalier(6550) About Me 

Question 1032576: The area of a rectangular coffee table is given by the trinomial x2+7x−8. The table's length is x+8. What is the table's width?
Click here to see answer by fractalier(6550) About Me 

Question 1032516: Simplify, leaving each answer in factored form. State any excluded values
48x^2 + 34x - 5 divided by 1 - 8x

Click here to see answer by Fombitz(32388) About Me 

Question 1032512: GoQuik Dinners makes meals for people on the go. The company models their profit with the function P = -2x^2 + 14x - 20, where x is the number of meals produced in hundreds, and P is the company's profits, in thousands
a) How many meals must be produced for the company to break even?
b) How many meals does GoQuik need to produce to maximize their profit?
c) What is the maximum profit they could earn?
Thanks

Click here to see answer by fractalier(6550) About Me 

Question 1032678: The solutions of the quadratic equation
3x^2+5x+10=0
are x=

Click here to see answer by josgarithmetic(39617) About Me 

Question 1032677: Find all the solutions of the equation
x^2+3x+6=0 and express them in the formula a+bi:
Solutions:

Click here to see answer by josgarithmetic(39617) About Me 

Question 1032704: One number is equal to the square of another. Find the numbers if both are positive and their sum is
132

Click here to see answer by Boreal(15235) About Me 

Question 1032749: Simplify, leaving each answer in factored form
Convert 125 cm/sec to kilometers per hour

Click here to see answer by josgarithmetic(39617) About Me 

Question 1032748: Simplify, leaving each answer in factored form
3x^2 -11xy - 4y^2 / x^3y - 4x^2y^2 * x^2y - 3xy^2 / 3x + y

Click here to see answer by mananth(16946) About Me 

Question 1032911: For what value(s) of t does the function f(x)=-9x^2-tx-4 have no zeros?
Thank you :)

Click here to see answer by josgarithmetic(39617) About Me 

Question 1032924: Complete the square showing the steps:
y=4x^2+24x-13
Thanks so much :)

Click here to see answer by josmiceli(19441) About Me 

Question 1032935: For what value(s) of d does the function f(x)=dx^2-6x+d have no zeros?
Thanks very much appreciated :)

Click here to see answer by robertb(5830) About Me 
Question 1032935: For what value(s) of d does the function f(x)=dx^2-6x+d have no zeros?
Thanks very much appreciated :)

Click here to see answer by josgarithmetic(39617) About Me 

Question 1032940: What information does the equation for the quadratic function f(x)=(x-3)(x+8) provide about the function?
Thank you:)

Click here to see answer by ikleyn(52781) About Me 

Question 1032945: A relationship between the height of a ball that is thrown in the air and the time it is in the air can be modelled by a quadratic function. Describe any restrictions on the domain and range of this model.
Thank you so much

Click here to see answer by josmiceli(19441) About Me 

Question 1032910: The population of a village can be modelled by the function P(x)= -22.5x^2+428x+1100, where x is the number of years since 1990. According to the model, when will the population be the highest?
Thank you very much

Click here to see answer by josmiceli(19441) About Me 

Question 1032943: The height of a baseball hit into the air is given by the quadratic equation h(t)=-5(t-2.6)^2+35 , where time,t, is in seconds and height, h(t), is in metres.
a) What was the height of the ball when it was hit?
b)What is the maximum height of the ball?
c)Is the ball still in the air after 4s? Explain
d) When is the ball at a height of 24m?
Thanks sooo much :)

Click here to see answer by stanbon(75887) About Me 

Question 1032942: The population of a village can be modelled by the function P(x)= -22.5x^2+428x+1100, where x is the number of years since 1990. According to the model, when will the population be the highest?
Much appreciated

Click here to see answer by Cromlix(4381) About Me 
Question 1032942: The population of a village can be modelled by the function P(x)= -22.5x^2+428x+1100, where x is the number of years since 1990. According to the model, when will the population be the highest?
Much appreciated

Click here to see answer by stanbon(75887) About Me 

Question 1033021: Solve the quadratic equation algebraically. Leave answers is simplist standard a+bi form.
2x^2-8x+134=0

Click here to see answer by josgarithmetic(39617) About Me 

Question 1033055: This question is killing me...help would be greatly appreciated.
The base of a triangle is 5cm greter than the height. The area of the triangle is 42cm^2. Find the height and base. Include a diagram.

Click here to see answer by solver91311(24713) About Me 

Question 1033063: Solving Quadratic Equations by Using the Quadratic Formula:
aČ+6a+3=0

Click here to see answer by solver91311(24713) About Me 

Question 1033266: the evidence of an illegal gun operation consisted of two different types of guns. the pistols are worth $565 a piece and the rifles are worth $795 a piece. If there are two times as many rifles as there are pistols, and all the guns combined are worth $75,425, how many rifles and pistols are being held in evidence?
Click here to see answer by addingup(3677) About Me 

Question 1032909: The population of a village can be modelled by the function
P(x)=-22.5x^2+428x+1100, where x is the number of years since 1990. According to the model, when will the population be the highest?
Thank you very much

Click here to see answer by LinnW(1048) About Me 

Question 1033344: lim x tends to infinity, ((x)^(ln x))/((ln x)^(x))
Click here to see answer by Fombitz(32388) About Me 

Question 1033410: Write the quadratic polynomial whose zeroes are 5 and 2
Click here to see answer by ikleyn(52781) About Me 

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