Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 314799: Please help me with this problem. Perform the requested operation or operations
f(x)=4x+11,g(x)==5x-1 find (f g)(x). WHere it says Find which is underlined there is a small "o" in between the f and G Thank you
Click here to see answer by malaydassharma(59)

Question 314904: 5x^2-3x+3=0. use the quadratic formula
Thank you
Click here to see answer by Fombitz(32388)

Question 314904: 5x^2-3x+3=0. use the quadratic formula
Thank you
Click here to see answer by solver91311(24713)

Question 314958: Trying to figure out this word problem...A frog leaps from a lily pad into the air with an initial vertical velocity of 20 feet per second. Use the equation h=16t to the second+vt+s to determine how long the frog is in the air. Thanx!
Click here to see answer by solver91311(24713)

Question 314981: If you are looking at a graph of quadratic equation how do you determine where the solutiions are?
Click here to see answer by solver91311(24713)

Question 314998: Find all the value of h such that the quadratic equation has no real solutions. Answer must be an equality or inequality in terms of h.
6x^2-4x+h=0
Click here to see answer by scott8148(6628)

Question 315180: Solve this quadratic equation using the quadratic formula.
x2 + 8x - 5 = 0

Click here to see answer by Fombitz(32388)

Question 315258: A sandbag falls out of a hot air balloon that is 144 feet above the ground how long does it take for the sandbag to reach the ground?
Click here to see answer by nerdybill(7384)

Question 315279: For what value of b will the line y=-2x+b be tangent to the parabola y=3x^2+4x-1
Click here to see answer by Fombitz(32388)

Question 315241: A rectangular pool has dimensions of 40 ft. and 60 ft. The pool has a patio area around it that is the same width on all sides.If the patio area equals the area of the pool, how wide is the distance from the pool edge to the patio edge?
If x represents the width of the patio, then which of the following equations could be used to solve the word problem?

Click here to see answer by checkley77(12844)

Question 315287: For what value of b will the line y=-2x+b be tangent to the parabola y=3x^2+4x-1
a method requiring the quadratic formula and substitution is required
Click here to see answer by Fombitz(32388)

Question 315118: Describe a real scenario of the application of a quadratic equation. First find an application example that uses the QE (for example, find the dimensions of the maximum area or volume).
-Find out a real problem
-Define variables
-Establish a responding quadratic equation
-Solve the equation
-Explain what is the reasonable solution between the two solutions of the quadratic equation
-Indicating an optimal value
Click here to see answer by solver91311(24713)

Question 315345: Can someone please help?
3x^2+8x-2=0
1. Solve using Quadratic formula
2. Solve using completing the square
3. Tell which method you prefer and why
Click here to see answer by Edwin McCravy(20054)

Question 315340: Find the geometric mean of 4, _____ , 196
A. 28
B. 7 or -7
C. 7
D. 28 or -28
Click here to see answer by Fombitz(32388)

Question 130760: Solve

Find the x-intercepts of
Click here to see answer by janjan440(1)

Question 315549: Why do you factor a quadratic equation before you solve?
Click here to see answer by ichudov(507)

Question 315566: Solve for x:
4x^2+9x=9
please show work
Click here to see answer by jim_thompson5910(35256)

Question 315573: 7x^2-3x-3=0
Click here to see answer by jim_thompson5910(35256)

Question 315574: Solve (u-5)^2-16=0,where u is a real number.
Simplify your answer as much as possible.
If there is more than one solution, separate them with commas

Click here to see answer by jim_thompson5910(35256)

Question 315576: Find the roots of the quadratic equation
x^2+8x+15=0
Click here to see answer by jim_thompson5910(35256)

Question 315575: Solve the equation for w
(w+1)^2=2w^2+6w+5
Click here to see answer by jim_thompson5910(35256)

Question 315590: Can someone please help me out with this. Thanks in advance
t(9+t)=4(2t+5)
Click here to see answer by jim_thompson5910(35256)

Question 315591: Find the ordered pair for the vertex.
y = 2x2 - 4x + 6

Click here to see answer by nyc_function(2741)

Question 315637: how can i solve this problem using quadratic formula
12x(squared)+3x+27=0
Click here to see answer by jim_thompson5910(35256)

Question 315700: Express 4√1875 into simplest form?
Simplify 4√(1625)�
Click here to see answer by Fombitz(32388)

Question 315700: Express 4√1875 into simplest form?
Simplify 4√(1625)�
Click here to see answer by Alan3354(69443)

Question 315740: please help--I've tried this for 2 days.
Solve using the quadratic formula.
Click here to see answer by Edwin McCravy(20054)

Question 315664: A circular pool measures 16 feet across. One cubic yard of concrete is to be used to create a circular border with uniform width around the pool. The border is to have a depth of 2 inches, how wide will the border be? (1 cubic yard=36 cubic feet)
Click here to see answer by ankor@dixie-net.com(22740)

Question 315898: 3+√(z-5)=√(z+10)
please help me solve this equation thanks
Click here to see answer by stanbon(75887)

Question 315896: (3x-5)squared=0
Click here to see answer by Earlsdon(6294)

Question 315994: Write a problem in which the quadratic equation x(x + 3)=108 must be solved in order to solve the problem.
Click here to see answer by jim_thompson5910(35256)

Question 316035: Rewrite the following in simplified radical form?

Square root 8z^12
Click here to see answer by jim_thompson5910(35256)

Question 316037: Simplify the following expression as much as possible
U square root 8y^5-y^2 square root 32yu^2
Click here to see answer by mananth(16946)

Question 316240: -3x + 2y = 6 graph this into a line

Click here to see answer by JBarnum(2146)

Question 316364: Which of the following points is on the graph of the equation y = x2 ?

A. (-2, 4)
B. (-5, 10)
C. (5, 10)
D. (4, 8)

Solve the equation by finding the square root of both sides: 3x2 = 27
A. x = 3 and x = 27
B. x = 1 and x = 9
C. x = �3
D. x = �√3

Solve the equation by completing the square: x2 + 2x - 8 = 0
A. x = 2 and x = -8
B. x = -4 and x = 2
C. x = 8
D. x = 1, x = 2 and x = -8

Solve for y: y2 + 12y + 11 = 0.

A. y = 1 or -11
B. y = -1 or -11
C. y = -1 or 11
D. None of the above

Solve the equation by finding the square root of both sides: 5x2 = 125
A. x = �√5
B. x = �5
C. x = 5 and 125
D. x = 1 and 25

Click here to see answer by rfer(16322)

Question 316420: 2x^2-11x-2=0
Click here to see answer by Fombitz(32388)

Question 316554: Given the polynomial 3x^2-6x-18 what is the vertex of it's graph
Click here to see answer by Fombitz(32388)

Question 316554: Given the polynomial 3x^2-6x-18 what is the vertex of it's graph
Click here to see answer by josmiceli(19441)

Question 316587: Complete the square to make the binomial a perfect square trinomial.
x^2 - 12x

Click here to see answer by texttutoring(324)

Question 316587: Complete the square to make the binomial a perfect square trinomial.
x^2 - 12x

Click here to see answer by CharlesG2(834)

Question 316630: x/x+1+5/x-1=1 solve the rational equation .
Click here to see answer by Fombitz(32388)

Question 316641: I am in my 50's and taking a online math class. I need some help with this problem if possible. This is the first time that I have used this site so please bear with me if I post something wrong.
A 12 ft ladder is leaning against a building at a 70 degree angle. What is the distance from the ground?
Click here to see answer by Fombitz(32388)

Question 316623: A theater has 300 suscribers who each pay $400 for a season ticket. A theater wants to raise the ticket by $20. For each $20 increase tehy loose 10 suscribers. At what price can they maxamize the revenue?
thanks a bunch!
Click here to see answer by ankor@dixie-net.com(22740)

Question 316683: For the following equation, state the value of the discriminant and then describe the nature of the solutions. 17x^2-10x-20=0
Click here to see answer by stanbon(75887)

Question 316621: A number of students go to a game costing a tital of $80. Eight studnets are ill and cant go. Each of the remaining kids have to pay $ 0.50 each. how many studenst went on teh bus?.

thanksyou so much!
Click here to see answer by ankor@dixie-net.com(22740)

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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, 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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