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 974231: a garden 7 m by 12 m will be expanded by planting a border of flowers. the border will be ofthe same width around the entire garden and has an area of 92 square meter.

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

Question 974252: Rewrite the following equations in vertex form:
Y=x^2-9x+20
Y=X^2-7x-8
Y=X^2+4x-9

Click here to see answer by MathLover1(20849) About Me 
Question 974252: Rewrite the following equations in vertex form:
Y=x^2-9x+20
Y=X^2-7x-8
Y=X^2+4x-9

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

Question 974267: Solve the quadratic equation by completing the square.
4x^2-28x+49=5

Click here to see answer by KMST(5328) About Me 

Question 974325: 3x-2x^2=7
(x+3)(x+4)=0

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

Question 974376: Can "a" be negative in a quadratic equation?
Click here to see answer by Alan3354(69443) About Me 

Question 974441: Mona invests $1000 at 8% yearly interest. How much
does she have to invest at 9% so that the total yearly
interest from the two investments exceeds $98?

Click here to see answer by lwsshak3(11628) About Me 

Question 974541: y= -x2+3x-10
Click here to see answer by Alan3354(69443) About Me 

Question 974468: How I can the mathematical equation for the problem, A garden 7 m by 12 mwill be expanded by planting a border of flowers .The borders will be of the same width around the entire garden and has an area of 92 square meter
Click here to see answer by josgarithmetic(39617) About Me 

Question 974530: Perform the indicated operations: (1)/(x)+((1)/(x+5)-(1)/(x-5)
Click here to see answer by josgarithmetic(39617) About Me 

Question 974604: please help me to
identify the value of a b c 3x-2x=7

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

Question 974698: A BALL THROWN UPWARD WITH AN INITIAL VELOCITY OF 48 FT/SEC FROM A HEIGHT 864 FT. ITS HEIGHT S, IN FEET, AFTER T SECONDS IS GIVEN BY S= -16T^2 +48T+864. AFTER HOW LONG WILL THE BALL REACH THE GROUND?
Click here to see answer by Alan3354(69443) About Me 

Question 974703: the length of a swimming pool is 8m longer than its width and the area is 105m2
Click here to see answer by Alan3354(69443) About Me 

Question 974609: The area of a circle is given by the expression 3.14(4x+36x+81) what expression represents the diameter of this circle ?
Click here to see answer by Alan3354(69443) About Me 

Question 974700: THE AREA OF A RECTANGULAR WALL OF A BARN IS 80 SQUARE FEET. ITS LENGTH IS 6 FEET LONGER THAN TWICE ITS WIDTH. FIND THE LENGTH AND WIDTH OF WALL OF THE BARN.
Click here to see answer by clearyjohn225(6) About Me 

Question 974835: The area of a rectangular wall of a barn is 280 square feet. Its length is 8 feet longer than twice its width. Find the length and width of the wall of the barn. What is the width?
Click here to see answer by harpazo(655) About Me 

Question 974870: Determine the equation of a parabola with vertex (-2,-11) and point (-4,5)show answer in vertex form.
Click here to see answer by josgarithmetic(39617) About Me 
Question 974870: Determine the equation of a parabola with vertex (-2,-11) and point (-4,5)show answer in vertex form.
Click here to see answer by lwsshak3(11628) About Me 
Question 974870: Determine the equation of a parabola with vertex (-2,-11) and point (-4,5)show answer in vertex form.
Click here to see answer by MathTherapy(10552) About Me 

Question 974793: The sum of areas for two squares is 900cm^2. The length of side of small square is 3/4 the length of side of larger square. What is the length of sides of each square.
Please and thank you

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

Question 975107: (x-2)^(2/5)=9
Click here to see answer by MathLover1(20849) About Me 
Question 975107: (x-2)^(2/5)=9
Click here to see answer by MathTherapy(10552) About Me 

Question 975115: Solve x^(-2/3)+x^(-1/3)-6=0
Click here to see answer by solver91311(24713) About Me 

Question 975114: 15x^4-11x^2+2=0
Click here to see answer by josgarithmetic(39617) About Me 

Question 975153: The length of a swimming pool is 8 m longer than its width and the area is 105 m²
Click here to see answer by Alan3354(69443) About Me 

Question 975177: Find a such that f(x)=ax^2 -4x +3 has a maximum value of 12
Click here to see answer by solver91311(24713) About Me 

Question 975207: please help me to solve this equation 9r²-25=0
Click here to see answer by Alan3354(69443) About Me 

Question 975274: a toy rocket is launched upward from a height of 1.3 m above the ground. The height of the rocket, in meters, after t seconds is modeled by the equation h=-4.9t^2+51t+1.3 What is the maximum height and when does it reach that height?

Click here to see answer by Alan3354(69443) About Me 

Question 975323: the full solution of 4a^2-147=a^2

Click here to see answer by Fombitz(32388) About Me 
Question 975323: the full solution of 4a^2-147=a^2

Click here to see answer by farohw(175) About Me 

Question 975306: I need help in this situation about solving quadratic equation by extracting square roots it goes like this:
Mr. Cayetano plans to install a new exhaust fan on his room's square-shaped wall. He asked a carpenter to make a square opening on the wall
where the exhaust fan will be installed.The square opening must have an area of 0.25 meters squared.
And here's the follow up question:
How are you going to represent the length of a side of the squared-shaped wall?HOW About its area?

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

Question 975375: Determine the equation of the quadratic function
With zeros of 4 + the square root of 2 and 4-
Squar root of 2 that passes through the point
(1,-21)

Click here to see answer by Edwin McCravy(20055) About Me 

Question 975463: a trailer has a mass of 260kg. bags of cement are placed on the trailer. each bag has a mass of 113kg. if the total mass of the trailer and the cement bags is 1729kg how many bags of cement are on the trailer
Click here to see answer by josgarithmetic(39617) About Me 

Question 975485: If f(x)=-4x^2+7 and g(x)=-x^2, find f(x)+g(x).
Click here to see answer by solver91311(24713) About Me 

Question 975336: You are interested in the maximum height the skier will reach after becoming airborne at (7,4). A series of photos of a jumper performing his jump shows the skier at the points (7,4) (9,7) (14,5.75) and (15,5). Find the equation of this parabolic path in height vs time.

Click here to see answer by KMST(5328) About Me 

Question 975497: I am trying to find the quadratic function of a parabola with a vertex of 5.3 and X intercepts -5.25 and 5.25
Click here to see answer by josgarithmetic(39617) About Me 

Question 975599: FIND THE DISTANCE BETWEEN THE POINTS (14, 14) AND (19, 17). ALSO FIND THE MIDPOINT OF THE SEGMENT THAT JOINS THE POINTS. WHAT IS THE DISTANCE?
Click here to see answer by Boreal(15235) About Me 

Question 975551: If you have a perimeter of 24, what point on the parabola's graph represents the maximum area?
Click here to see answer by Alan3354(69443) About Me 

Question 975604: FIND THE CENTER-RADIUS FORM OF THE EQUATION OF THE CIRCLE DESCRIBED. THEN GRAPH THE CIRCLE.
CENTER (0,0) RADIUS 6
WHAT IS THE EQUATION OF THE CIRCLE?

Click here to see answer by Alan3354(69443) About Me 

Question 975625: Solve the equations using the quadratic formula. Round to the nearest hundredth when necessary.
2x2 + 3x - 5 = 0

Click here to see answer by Alan3354(69443) About Me 

Question 975622: Identify the quadratic equations as pure, incomplete, or complete
3x² = 42

Click here to see answer by Edwin McCravy(20055) About Me 

Question 975627: Describe the roots of the equations without solving.
x2 - 8x +12 =0

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

Question 975626: Solve the equations using the quadratic formula. Round to the nearest hundredth when necessary.
x2 - 3x -5 = 0

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

Question 975630: Find whole numbers n and m so that square root 7875= n square root m in simplist form
Click here to see answer by ankor@dixie-net.com(22740) About Me 
Question 975630: Find whole numbers n and m so that square root 7875= n square root m in simplist form
Click here to see answer by Alan3354(69443) 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