Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 852095: Using the square root method how do I solve
x^3-64=0
Click here to see answer by richard1234(7193)

Question 852097: Using the square root method how do I solve
x^4-16=0
Click here to see answer by Alan3354(69443)

Question 852097: Using the square root method how do I solve
x^4-16=0
Click here to see answer by Boston_Don(1)

Question 852094: Use factoring to determine the x-intercepts
X^2+2x-35≥0

Click here to see answer by Alan3354(69443)

Question 852127: write the question in theform y=a(x-h)^2+k
y=3x^2+4x+2
Click here to see answer by Fombitz(32388)

Question 852178: 5x^3+30x^2-15x
Click here to see answer by Fombitz(32388)

Question 852178: 5x^3+30x^2-15x
Click here to see answer by josh_jordan(263)

Question 851463: Please solve for x: ((x + 4) / -1) = 4 / x .
Click here to see answer by Fombitz(32388)

Question 852280:
Click here to see answer by Alan3354(69443)

Question 852341: I am really bad at these types of problems and my teacher is terrible at explaining. Can someone please help me with this one.
Suppose the revenue and cost function for a company is given by:
R(q)=-.01q^2+30q+7000
C(q)=5000+25q
Respectively.
a.)Find the profit function.
b.)How many units do we have to produce and sell to reach max[R].
c.)What is the max[R]?
d.)What is the fixed cost?
e.)What is the variable cost?
f.)Is the cost function a linear function or a quadratic function?
g.)What is/are the break-even point(s)?
I know it's a lot but I would really appreciate the help I'm honestly just not getting this. Please and thank you!

Click here to see answer by josgarithmetic(39617)

Question 852439: x^4 - 10x^2 + 9 = 0
Click here to see answer by JulietG(1812)

Question 852467: the men to women ratio of people who work in company is 7:8.If the number of women is 360,finb the number of men who work in this company
Click here to see answer by ewatrrr(24785)

Question 852432: 4x-4x^1/2=3
2x^2/3-x^1/3=0
x^2/5-x^1/5-42=0
Click here to see answer by ewatrrr(24785)

Question 852713: Find the discriminant of the function f(x) = 2x2 - 6x - 3 and determine how many roots the function has
Click here to see answer by ewatrrr(24785)

Question 852753: under which condition is quadratic equation can be factorable where a is not equal to zero
Click here to see answer by josgarithmetic(39617)

Question 852983: A circus acrobat is shot out of a cannon with an initial upward speed of 50 ft/s. If the acrobat leaves the cannon 4 ft above the ground, how long will it take him to reach a net that is 10 ft above the ground?
Click here to see answer by josmiceli(19441)

Question 853050: f(x)=81-x^2
Click here to see answer by ewatrrr(24785)

Question 853115: Which quadratic equation has maximum at (3, 2)?
Select one:
a. y = - x2 - 6x - 7
b. y = -x2 + 6x - 7
c. y = x2 + 6x - 7
d.
y = - x2 - 6x - 7
y = -x2 + 6x + 7
Click here to see answer by ewatrrr(24785)

Question 853113: The equation y = -4.290x2 + 612.6x - 21773 models the number y of people surveyed who felt comfortable at temperature x (in Fahrenheit). What temperature made the greatest percent of people comfortable?
Select one:
a. 76.7
b. 71.4
c. 82.4
d. 61.2
Click here to see answer by ewatrrr(24785)

Question 853149: Developing and Analyzing the Quadratic Formula
This formula, which is called the quadratic formula, can be used to find the roots for any quadratic equation of the form ax2 + bx + c = 0. The formula can be used to solve a problem such as the following: The house addresses of two neighbouring houses differ by two. Their product is 85 263. What is each address?
Purpose:
Use the quadratic formula to find the roots of quadratic equations.
Procedure:
A. Create a quadratic equation that can be used to determine the house addresses in the problem.
B. Use the quadratic formula to find the roots of the quadratic equation
C. Verify the roots in Step B by using a method presented in focus F
D. Explain how the roots of the quadratic equation can be used to solve the problem.
I need help with all of the procedure. I completely stuck

Click here to see answer by stanbon(75887)

Question 853259: The length of a rectangle is 1 1/2 times its width. Find the dimension of the rectangle if its area is 52 square inches
Click here to see answer by richwmiller(17219)

Question 853297: An open box is to be made from a square sheet of tin-plate by cutting out 2 cm squares from each corner and folding up the sides. If the required capacity of the box is to be 32cm3, find the dimensions of the sheet of the tin-plate required.
Click here to see answer by mananth(16946)

Question 853347: What is the rule for the sum of the first 'n' positive integers.
I.e. 1+2+3+4+5...
Could you please give the formula and explain the solution?
Click here to see answer by richard1234(7193)

Question 853456: The following quadratic equation has integer solutions.
x 2 + x − 12 = 0.
What is the positive solution of the equation?
Enter your answer as a number in the box below.
Here is a picture of the question as well as the math question isn't written out properly as I couldn't do it on the browser.
http://gyazo.com/83e60cd4df3f6f390fdc13bb3a266e69
Click here to see answer by LinnW(1048)

Question 853650: Solve using square and diamond or quadratic equation

Click here to see answer by LinnW(1048)

Question 853683: What is the equation of the axis of symmetry of the graph y=4x^2-5x+16
Click here to see answer by josgarithmetic(39617)

Question 853683: What is the equation of the axis of symmetry of the graph y=4x^2-5x+16
Click here to see answer by MathTherapy(10551)

Question 853696: Solve using the zero product property
(x-5)(x+2)=-6
Click here to see answer by josgarithmetic(39617)

Question 853673: By completing the square, the expression x^2+6 x +180 equals (x+A)^2+B
Click here to see answer by josgarithmetic(39617)

Question 853743: `Solve using the zero product property

Click here to see answer by fcabanski(1391)

Question 853681: What is the equation of the axis of symmetry of the graph of y=-3x^2-6x+4
Click here to see answer by josgarithmetic(39617)

Question 853742: Solve following the quadratic equation

Click here to see answer by mananth(16946)

Question 853823: What is the graph of the equation y=-x^2-2x+1
Click here to see answer by Fombitz(32388)

Question 853823: What is the graph of the equation y=-x^2-2x+1
Click here to see answer by ewatrrr(24785)

Question 853739: Solve following the quadratic equation

Click here to see answer by LinnW(1048)

Question 853891: -5x^2+3x+4=0 quadratic equation.
Click here to see answer by ewatrrr(24785)

Question 853902: Given the equation: f(x)=2x^2-3x+5 determine whether the graph opens up or down, the vertex of the equation, the axis of symmetry, y-intercepts and x intercepts, if and determine where the function is increasing and where it is decreasing.
Help would me be much appreciated. Very confused!
Thanks!
Click here to see answer by josgarithmetic(39617)

Question 853974: Help required with this question
If the demand function for a product is given by Psquare + 2q=1600 and the supply function is given by 200-Psquare +2q =0.
Find the equilibrium quantity and equilibrium price.?
Click here to see answer by ewatrrr(24785)

Question 853970: Im sorry I typed it in wrong.Can you show me step by step how to do this?
x^2-10x+25
Click here to see answer by ewatrrr(24785)

Question 853999: Hi, I'm currently on binomials. What should I do to solve this?
"When (3a+x2)6 is expanded, the coefficient of the term in x4 is 19440. Find the value of a."

Click here to see answer by ewatrrr(24785)

Question 854264: Someone kindly provide solutio to this....thankss
assume that a firm knows that the cost to make x items is given by the cost function C(x) = 6xsquare + 700x dollars. it also knows that the revenue from x items is given by the revenue function R(x) = 1000x + 400.
Required:
Maximum profit they can expectt and how many of these items they have to produce and sell to make this maximum profitt.
Click here to see answer by LinnW(1048)

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