Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 889710: Expand (x+1/x)^2 and find the value of x+1/x if (x+1/x)^2 = 5
Click here to see answer by Fombitz(32388)

Question 889831: 1.Solve the equation, if possible. Write irrational numbers in simplest radical form. Describe the strategy you used to get your solution and tell why you chose that strategy. x^2-4=0 PLEASE SHOW WORK THANK YOU SO MUCH. :)

Click here to see answer by parthdesai27(11)

Question 889907: 4y=10y-3
using the -b square root b^2 -4ab/2a formula
Click here to see answer by solver91311(24713)

Question 889917: The Length of a rectangle is 1 m less than 4 times the width. Its area is 33m^2. Find the Dimensions of the Rectangle
Click here to see answer by josgarithmetic(39616)

Question 889913: How 5x+2=2x� transform into standard form?
Click here to see answer by josgarithmetic(39616)

Question 890090: Please evaluate :
Lim x tends to zero, ((tanx)/x)^(1/x^2) with step by step solution. The answer is = e^(1/3) as per book.
Regard
Khoka123
Click here to see answer by solver91311(24713)

Question 890126: The length of a rectangular parking lot is 36m longer than its width. The area of the parking lot is 5,152m2. If the area of the parking lot is double, would its length and width also double?
Click here to see answer by josgarithmetic(39616)

Question 890125: A projectile that is fired vertically into the air with an initial velocity of 120 ft per second can be modeled by the equation s=120t-16t2. In the equation, s is the distance in feet of the projectile above the ground after t seconds. Is it possible for the projectie to reach 900 feet? Justify you answer.
Click here to see answer by stanbon(75887)

Question 890122: Determine the area of the region bounded by y = x.e^(-x^2) ,y = x+1 , x= 2 , and the y-axis
Click here to see answer by Fombitz(32388)

Question 890063: The question is : Discuss applicability of Roll's Theorem for the function
f(x) = (x)^(2/3) on the interval [-1,1]
Please send step by stem solution,
Regards,
S B Roy
Click here to see answer by robertb(5830)

Question 890059: lim x tends to zero, ((tanx)/x)^(1/x^2)
Please send step by stem solution,
Regards,
S B Roy
Click here to see answer by Edwin McCravy(20054)

Question 890201: There are 4 large buses and 5 small buses. The large buses has 12 more seats than the smaller buses. There are 336 seats total? How many more seats are on the large buses?

Click here to see answer by Edwin McCravy(20054)

Question 890223: 1. Find two consecutive whole numbers whose product is 156? 2.The sum of a number and its reciprocal is 25/12. Find the number and its reciprocal? 3.The area of a triangle is 135cm2. if the altitude is 1/3 the base, what are lengths of the altitude and the base?
Click here to see answer by ankor@dixie-net.com(22740)

Question 890171: Add.reduce the sum to lowest terms whenever possible. 1. 1/5+3/10+1/3= 2.4/7+3/21+4/14= 3.14/24+5/12+1/6= 4.3/9+1/2+1/3= 5.1/3+1/15+2/5=
Click here to see answer by cedrick30(3)

Question 890273: Please send me the step by step solution of the following limit :
Lim x tens to zero, ((tanx)/x)^(1/x^3)
Regards,
Khoka
Click here to see answer by rothauserc(4718)

Question 889922: Jane and Maria can clean the house in 8 hours if they work together. The time Jane takes in cleaning the house alone is 4 hours more than the time Maria takes in cleaning the same house. How long does it take Jane to clean the house alone?
Click here to see answer by lwsshak3(11628)

Question 890434: from a quadratic equation one of the whose root is2+√3.
Click here to see answer by dkppathak(439)

Question 890434: from a quadratic equation one of the whose root is2+√3.
Click here to see answer by Theo(13342)

Question 890279: The outside of a mosaic mirror frame measures 14 in. by 20 in., and 160 in^2 of mirror shows. Find the width of the frame.
Click here to see answer by josmiceli(19441)

Question 890577: The product of two numbers is 88. Algebraically determine the numbers if one number is 3 more than the other.
Click here to see answer by JulietG(1812)

Question 890611: If i have roots or solution m and n, what can i do to identify the standard form of the given roots?

Click here to see answer by KMST(5328)

Question 890640: How to solve the following problem?
d^2 - d - 30 = 0

Click here to see answer by algebrahouse.com(1659)

Question 890666: When a basketball player shoots a ball from his hand at an initial of 2 m with an initial upward velocity of 10 meters per second, the height of the ball can be modeled by the quadratic expression -4.9t^2 + 10t + 2 after t seconds.
a. What will be the height of the ball after 2 seconds?
b. How long will it take the ball to reach the height of 4.5 m?
How long will it take to touch the ground?
c. Do you think the ball will reach the height of 12 m? Why?
d. Will the ball hit the ring if the ring is 3 m high?
e. Write a similar situation with varied initial height when the ball is thrown with an initial upward velocity. Then model the path of the ball by quadratic expression.
f. Using the equation and the quadratic expression you have written in item e, formulate and solve problems involving the height of the ball when it is thrown after a given time.

Click here to see answer by Alan3354(69443)

Question 890695: For what value of 'k' the equation is a perfect square?
Click here to see answer by josgarithmetic(39616)

Question 890736: Express
(9X^2 +20x -10)
-------------------- in partial fractions
(x+2)(3x-1)
Click here to see answer by Alan3354(69443)

Question 890765:
Click here to see answer by Alan3354(69443)

Question 890812: where a is the altitude above sea level (in miles). If a city has an atmospheric pressure of 11.19 psi, what is its altitude? (Recall that 1 mi = 5,280 ft. Round your answer to the nearest foot.)

Click here to see answer by Theo(13342)

Question 890853: Can the sum of linearly increasing integers be quadratic?
Click here to see answer by cedrick30(3)

Question 890961: 1/4x^2+4x+9 rewrite the quadratic portion of the algebraic expression as the sum or difference of two squares by completeing the square.
Click here to see answer by Tatiana_Stebko(1539)

Question 890932: The product of two consecutive numbers is 650. find the numbers.
Click here to see answer by Tatiana_Stebko(1539)

Question 890932: The product of two consecutive numbers is 650. find the numbers.
Click here to see answer by Alan3354(69443)

Question 891099: find the value of k in order to have equal roots of 2x^2-kx+5=0
Click here to see answer by josgarithmetic(39616)

Question 891099: find the value of k in order to have equal roots of 2x^2-kx+5=0
Click here to see answer by MathTherapy(10551)

Question 891091: find the value of k that makes the sum of the roots of 3x^2-(3k+2)x+18=0 equal to 6.
Click here to see answer by josgarithmetic(39616)

Question 891091: find the value of k that makes the sum of the roots of 3x^2-(3k+2)x+18=0 equal to 6.
Click here to see answer by MathTherapy(10551)

Question 891093: find the value of k that makes the sum of the roots of 3x^2-(3k+2)x+18=0 equal to 6.
Click here to see answer by Edwin McCravy(20054)

Question 891027: (3a-1)� (2a^2-5a-12)=0
Click here to see answer by Fombitz(32388)

Question 891186: An Engineer wants to surround the rectangular pool with a stone border of uniform width. There are enough stones to cover 64 sq meters. How wide should she make the border?
Click here to see answer by josgarithmetic(39616)

Question 891129: Need steps to be shown to this question as well as a solution. The topic is Quadratic Equation.
25x2 -20x+4
Click here to see answer by josgarithmetic(39616)

Question 891218: step to solve this quadratic inequality 3x^2-5x=0
Click here to see answer by josgarithmetic(39616)

Question 891270: Anna and Leah, living 39 km apart, leave their homes at the same time riding motorbikes and travel toward each other. Anna's average speed is 2 km per hour more than Leah's average speed. If they meet in 90 minutes, what is the average speed of Anna?
Click here to see answer by richwmiller(17219)

Question 891461: Hi! Please transform the given rational equation to quadratic equation.
*Okay, This is confusing but please do it and kindly explain how you did it. Thank you so much!*
x + 8/x-2 = 1 + 4x/x-2
Words: X plus 8 over x minus 2, equal to 1 plus 4x over x minus 2.
Thank you!
Click here to see answer by Fombitz(32388)

Question 891528: If f(x)=x^2-5x+3, then the value of f(x-1) is:
a.x^2-5x+3
b.x^2+7x+9
c.x^2-7x+9
d.x^2+7x-3
Click here to see answer by richwmiller(17219)

Question 891552: From among the following pairs of numbers, whose sum is 36, identify the pair of numbers whose product is the maximum.
a. 20,16
b. 18,18
c. 34,2
d. 20,22
Click here to see answer by Fombitz(32388)

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