Questions on Algebra: Quadratic Equation answered by real tutors!

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Question 330422: Solve x2=-3x+7 using the quadractic formula?
Click here to see answer by solver91311(24713)

Question 330477: What is the sum of the solutions to the equation 9 x^2 - 6x = 8?
Click here to see answer by mananth(16946)

Question 330488: The length of a rectangle is 3 cm more than 2 times its width. If the area of the rectangle is 93 square centimeters, find the width of the rectangle to the nearest thousandth.
Thank you for the service you offer
Click here to see answer by mananth(16946)

Question 330489: Complete the table of values for the given quadratic equation:
Complete the table of given values for the function:
y = x2 + 3x.
Put the y values in the indicated blank.
x y
-3 blank 1
-2 blank 2
-1 blank 3
0 blank 4
1 blank 5

Click here to see answer by mananth(16946)

Question 330382: Complete the table of values for the given quadratic equation:
Complete the table of given
values for the function:
y = x2 + 3x.
Put the y values in the
indicated blank.
x y
-3 blank 1
-2 blank 2
-1 blank 3
0 blank 4
1 blank 5

Thanks again for the service You provide
Click here to see answer by Fombitz(32388)

Question 330517: 7/v=9/v-1/3 what is the solution for v
Click here to see answer by mananth(16946)

Question 330519: Jack can mow a lawn in 5hrs. Mary can more the same lawn in 4 hrs. How long will it take for them to mow the same lawn together.
Click here to see answer by mananth(16946)

Question 330516: If the sides of a sqaure are lengthened by 5cm. and the area becomes 81cm^2. What was the length of the original square?
Click here to see answer by mananth(16946)

Question 330528: Solve for x.
x^2 + 52 = 8x
Click here to see answer by Fombitz(32388)

Question 330528: Solve for x.
x^2 + 52 = 8x
Click here to see answer by mananth(16946)

Question 330509: Find the vertex,the line of symmetry, the maximum or minimum value of the quadratic function, and graph the function. f(x)=-2x^2+2x+8
Click here to see answer by Fombitz(32388)

Question 330626: 1. How many solutions exist for a quadratic equation? Explain and example
2. How do we determine whether the solutions are real or complex? Example.

Click here to see answer by Fombitz(32388)

Question 330684: Look at the graph above and comment on the sign of the discriminant. Form the quadratic equation based on the information provided and find its solutions.
* This graph is a Parabola type. You can tell by its horse shoe shape and in a upright position
* The x2 coefficient term is positive, because of the upward opening. This tells me the formula ax^2 + bx + c = >0 is used. In addition, two real roots exist for a positive.
* Because the graph crosses the x axis, one or more real roots exist.
* A visible symmetrical (lowest point) exist and is called the vertex. This position is on coordinates (-0.16,-2). Additionally, the vertex is located between a mirror image of the left and right lines.

Click here to see answer by solver91311(24713)

Question 330706: how do i factor 9x^4+42 x^3+49x^2
Click here to see answer by scott8148(6628)

Question 330859: How many solutions does the following system of equations have?
y = x^2 - 4 and y = 3x^2 + 6x + 2

Click here to see answer by Fombitz(32388)

Question 330880: Solve the formula for the given letter. Assume all variables represent non-negative numbers.
a^2+r^2=j^2, for a
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Question 330878: Solve by completing the square.
x^2+3/2x=3
What is the solution?
x=___?
Click here to see answer by Fombitz(32388)

Question 330864: w-7/w-9-w+1/w+9+w-45/w^2-81. sovle I'm thinking that the denominator for this one is (w-9)(w+9) stuck from there.
Click here to see answer by Alan3354(69443)

Question 330855: In solving the following system of equations, what is the value of the discriminant in the resulting equation? y = x2 - 2x + 1 and y = 1/4x^2 + 1/2
Click here to see answer by Alan3354(69443)

Question 330877: Give exact and approximate solutions to three decimal places.
x^2-5x+3=0
The exact solutions are x=__?
(use radicals as needed. Use commas to separate answers)
The approximate solutions to three decimal places are x=___?
(use a comma to separate answers)
Click here to see answer by Alan3354(69443)

Question 330925: (s+1/4)(s+1/5) Multiply for an answer
Click here to see answer by Fombitz(32388)

Question 330925: (s+1/4)(s+1/5) Multiply for an answer
Click here to see answer by MathLover1(20849)

Question 329711: x^2-8x+22=7
Click here to see answer by Fombitz(32388)

Question 329890: find all possible value of n for which the equation x^2+x-n=0 has integral solution.
Click here to see answer by Fombitz(32388)

Question 330866: 4x(x-6)-5x(x-5)=2 sovle for x. I must admit on this one I'm totaly lost.
Click here to see answer by scott8148(6628)

Question 330984: find the discriminant of x^2-2x=-5
Click here to see answer by solver91311(24713)

Question 331029: what is the sum of the root of the quadratic equation x^2-11x+10=0?
Click here to see answer by galactus(183)

Question 331021: A photo is 3 inches longer that it is wide. A 2-inch border is placed around the photo making the total area of the photo and border 108in2. What are the dimensions of the photo?
Click here to see answer by checkley77(12844)

Question 331018: Three consecutive even integers are such that the square of the third is 76 more than the square of the second. Find the three integers.
Click here to see answer by checkley77(12844)

Question 331079: choose your preferred solution method and solve this quadratic equation:
6x^2 + 7x = 3
Click here to see answer by Alan3354(69443)

Question 331016: A rectangular parking lot is 50 ft longer than it is wide. Determine the dimensions of the parking lot if it measures 250 ft diagonally.
Click here to see answer by checkley77(12844)

Question 331078: Now discuss this quadratic equation and determine the number and nature of the solutions, using the determine whether the solutions are real or complex?
3x^2 - 2x - 1 = 0
Click here to see answer by solver91311(24713)

Question 331076: Now discuss this quadratic equation and determine the number and nature of the solutions, using the determine whether the solutions are real or complex?
3x2 - 2x - 1 = 0

Click here to see answer by AAfter.Com(18)

Question 331169: What is h if ( x^3 + 2 x^2 - 4x + h) � (x + 1) has a remainder of 15?

Click here to see answer by Edwin McCravy(20054)

Question 331210: 16d^2/2d^2-16d+32 multiplied by 2d-8/4d I'm totaly lost on this one.
Click here to see answer by mananth(16946)

Question 331224: A ball is dropped from a height of 150ft how long will it take for it to reach the ground? all i know is that im suppose to figure it out in a quadratic equation form and that objects fall at a rate 32.2ft per second per second(32.2ft squared)
Click here to see answer by ankor@dixie-net.com(22740)

Question 331234: Can you describe the sets that make up the domain and range of the following functions?
F(x) = 2x
F(x) = Capitals of the states in the US
F(x) = Cities with baseball teams

Click here to see answer by mathmandotcom(31)

Question 331357: please help: (3x+2)^2=16
Click here to see answer by checkley77(12844)

Question 331356: please help solve: x^2+3x=4 and 4x^2-3x=-6
... i do not know how to start off these problems..
help please, it is a school assignment.
Click here to see answer by checkley77(12844)

Question 331379: 2x2+x-2,0 less than or greater than x less than or greater than 2
Click here to see answer by solver91311(24713)

Question 331402: Now discuss this quadratic equation and determine the number and nature of the solutions, using the logic you stated above:Please show the work and steps please.
3x2 - 2x - 1 = 0
Click here to see answer by solver91311(24713)

Question 331207: 60-16w+w^2 : please factor
Click here to see answer by scott8148(6628)

Question 331467: graphing equations
Click here to see answer by Alan3354(69443)

Question 331428: The volume of a can that is 4in tall is given by the equation where r is the radius of the can, measured in inches.
Part A. Solve the equation for r. Please do not rationalize the denominator
Part B. Using the equation produced from your work in part A, determine the radius of a can with volume of 12.56in^3. use 3.14 for n
Click here to see answer by ankor@dixie-net.com(22740)

Question 331444: please solve the quadratic equation

Click here to see answer by mananth(16946)

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