Questions on Algebra: Quadratic Equation answered by real tutors!

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Question 545879: what could be a real life example of a exponential function?
Click here to see answer by Alan3354(69443)

Question 545993: Determine the graph of the quadratic equation y = x2 - 2x + 3
Click here to see answer by JBarnum(2146)

Question 546238: x�+6=0
Determine the nature of the solutions of the equation.
I need help please

Click here to see answer by KMST(5328)

Question 546484: Pleasehelpmesolvethisequatio(ax2+bx+c=0)
Click here to see answer by JBarnum(2146)

Question 546693: how do i create an equation (in standard form) of a parabola?
Click here to see answer by Edwin McCravy(20054)

Question 546819: A rectange shed covers 300 feet of ground. It is 6 feet longer than it is wide. What is the width of the shed to the nearest tenth of a foot?
This is what I tried:
x = width
x + 6 = length
Area of a Rectangle = 300
What I set up: 300 = x(x + 6)
Which then I got: 300 = x^2 +6x
That is all I could figure out.
Click here to see answer by Earlsdon(6294)

Question 546739: A towns old street sweeper can clean the streets in 60h. The old sweeper together with the new sweeper can clean the street in 15h. How long would it take the new one to do the job alone?
Click here to see answer by ankor@dixie-net.com(22740)

Question 546898: Directions say to factor completely
7r-3rt+7s-3st
I don't know what to do next help!
Click here to see answer by mananth(16946)

Question 547048: the illumination produced by a light source depends on the distance from the source. For a particular light source, this relationship can be expressed as i=(4050)/(d^2), where i is the amount of illumination in footcandles and d is the distance from the light (in feet). How far from the source is the illumination equal to 50 footcandles?
Click here to see answer by ankor@dixie-net.com(22740)

Question 547162: A concrete bridge over a river has an underside in the shape of a parabolic arch. At the water level, the arch os 20m wide. It jas a maximum height of 10m about the water. The minimum vertical thickness of the concrete is 1.5m.
a) find an algebraic relation that represents the shape of the arch.
Click here to see answer by ankor@dixie-net.com(22740)

Question 547628: x^2+12x+18 Whats the Answer For this problem i need Help
Click here to see answer by saifoo.khan(162)

Question 547618: 3x^2+39x+108=0
Click here to see answer by mananth(16946)

Question 547764: Solve:(5w + 2)^2 - 3(5w + 2) - 4 = 0
Appreciate all help/feedback.
Click here to see answer by mananth(16946)

Question 547768: State the values of a, b, c for the equation. Then find the value of the discriminant for the equation 3x^2-5x=2. And please show the work
Click here to see answer by mananth(16946)

Question 547867: Find the equation of the quadratic function with zeros 10 and 14 and a vertex at (12, -8)
Click here to see answer by scott8148(6628)

Question 548128: (x-1)^2=20
Click here to see answer by mananth(16946)

Question 548108:
Keith leaves his house for Sarah�s house riding his bicycle at 8 miles per hour. At the same time, Sarah leaves her house heading toward Keith�s house walking 3 miles per hour. The system of equations that represents the distance, d, each is from Sarah�s house in h hours is given below:
d=8.25-8h
d=3h
what does the solution of this system represent?

Click here to see answer by mananth(16946)

Question 548218: Write a quadratic function in standard form with zeros 6 and -8?
Click here to see answer by nerdybill(7384)

Question 548218: Write a quadratic function in standard form with zeros 6 and -8?
Click here to see answer by mathie123(224)

Question 548375: What is the minimum product of two numbers whose difference is 30?
Click here to see answer by Alan3354(69443)

Question 548436: Enter the quadratic equation in standard form
x2 - 5x - 5 = 2x + 3

Click here to see answer by Maths68(1474)

Question 548518: -56=(2r-21)(r+1)
Click here to see answer by oberobic(2304)

Question 548608: There are two facing pages, The product of the page number is 1190. Find the page numbers of the first page and second page?
Click here to see answer by mananth(16946)

Question 548608: There are two facing pages, The product of the page number is 1190. Find the page numbers of the first page and second page?
Click here to see answer by stanbon(75887)

Question 548604: Write a quadratic equation with roots {-4,7}.
Click here to see answer by mananth(16946)

Question 548605: Give exact and approximate solution to three decimal places.
(x-5)^2=12
Solve by completing the square,
m^2-25/2m=5/2

Click here to see answer by mananth(16946)

Question 548636: The lenght of a five-pound note is 5 mm less than twice the width. The area is 9450 mm sq. Find the dimensions of five-pound note.
Click here to see answer by Earlsdon(6294)

Question 548620: REPRESENT THE GIVEN SITUATION IN THE FORM OF QUADRATIC EQUATION-
THE HYPOTENUSE OF A RIGHT TRIANGLE IS 1M LESS THAN TWICE THE SHORTEST SIDE.IF THE THIRD SIDE IS 1M MORE THAN THE SHORTEST SIDE.
Click here to see answer by nerdybill(7384)

Question 548713: I need to find all zeros.
13x(exponent 3)-185x(exponent 2)+608x-508
Click here to see answer by stanbon(75887)

Question 548728: use the quadratic formula to solve:
x^2-3x=-3
Click here to see answer by jim_thompson5910(35256)

Question 548842: show me how to solve this equation 2(x-8)^ 2+x^2=x(x=51)-43x
Click here to see answer by oberobic(2304)

Question 548869: I need to know the discriminant of a parabola whose associated values are (-4,0(2,0)AND WHOSE VERTEX IS (-1.-9)ASAP? Please include the formula and show your work. MY E-MAIL ADDRESS IS jhami128@comcast.net
Click here to see answer by Alan3354(69443)

Question 548885: 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 -4,2
Click here to see answer by mananth(16946)

Question 548898: The number of tickets sold each day for an upcoming performance of Handel's Messiah given by N(x)=-0.5x^2+15x+12, where x is the number of days since the concert was first announced. When will daily ticket sales peak and how many tickets will be sold that day?
Click here to see answer by mananth(16946)

Question 548975: solve the equation by completeing the square:
7x^2+10x=-2
Click here to see answer by mananth(16946)

Question 548975: solve the equation by completeing the square:
7x^2+10x=-2
Click here to see answer by josmiceli(19441)

Question 548975: solve the equation by completeing the square:
7x^2+10x=-2
Click here to see answer by mathie123(224)

Question 549064: Solve X^2 + 11 = 6x
Click here to see answer by jim_thompson5910(35256)

Question 549064: Solve X^2 + 11 = 6x
Click here to see answer by KMST(5328)

Question 549193: Solve using the quadratic formula:
-8x^=27x-5=1-x
Click here to see answer by mananth(16946)

Question 549292: A garden measuring 12 meters by 16 meters is to have a pedestrain pathway installed all around it, increasing the total area to 285 square meters. What will be the width of the pathway?.
Click here to see answer by mananth(16946)

Question 549343: 1.find all the zeros of the function and write the polynomial as a product of linear factors
A. fix)=x3 + 1\x2 +39x+29
B. gix)=x5 -8x4 +28x3 -56x2 +64x-32
2. find a polynomial function with integer coefficients that has the given zeros.
A. 0, 0, 4, 1 + i
3. use the given zero to find all the zeros of the function.
A. (x)=x3 +x2 +9x+9 zero= r=3
4.(a) use the root or zero feature of a graphing utility to approxi- mate the zeros of the function accurate to three deci- mal places, and (b) determine one of the exact zeros, use synthetic division to verify your result, and find the exact values of the remaining zeros.
A. fix) = x3 + 4x2 + 14x + 20
Click here to see answer by solver91311(24713)

Question 549395: Convert Standard equations to vertex form:
-3x^2-60x-294

*Step by step
Click here to see answer by KMST(5328)

Question 549468: solve for x
i) (3x-4)(x+1)=2
ii) x-2/x-1=5/x , x#0,x#1
Click here to see answer by mananth(16946)

Question 549515: solve for x
(x-2)/(x-1)=5/x, x#0, x#1
Click here to see answer by stanbon(75887)

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