Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 220979: what is mode?
Click here to see answer by likaaka(51)

Question 220955: 45,000= 150r + 250s
Click here to see answer by Alan3354(31528)

Question 220988: which of the following is the greates common factor of the terms 48s5t3u2 and 40s3tu4
Click here to see answer by checkley77(12569)

Question 221042: What is the value of x when it's 4x squared + 8x + 4 = O? Can you show me how to solve it without using the quadratic formula?
Click here to see answer by jim_thompson5910(28715)

Question 221214: Suppose that X represents one of two positive numbers whose sum is 50. Determine a function F that represents the product of these two numbers. For what two such numbers is the product equal to 400?
Click here to see answer by RAY100(1637)

Question 221094: How can I figure out my a,b,and c values from the following expression?
.850=[(x)/(1-x)(2-x)]

THANK YOU!!
Click here to see answer by sofiyac(695)

Question 221267: Please help me solve this equation
5/7-3 = y+7/2y-6 +1
My solution:
LCD of y-3 y-3(5/y-3)=y-3(y+7/2y-6)
=5*y+7/4
= 12/4
= 3
Click here to see answer by checkley77(12569)

Question 221303: can u solve this problem
factorise
15+15x-20x^2
Click here to see answer by drj(1380)

Question 221378: Find the vertex, the line of symmetry, and the maximum or minimum value of f(x).
f(x)=-(x+8)^2-7
The vertex =
The line of symmetry =
The minimum or maximum value=
Is this maximum or minimum?
Thank you!
Click here to see answer by likaaka(51)

Question 221447: Solve for x. x^2+45=6x
Thank you!
Click here to see answer by checkley77(12569)

Question 221447: Solve for x. x^2+45=6x
Thank you!
Click here to see answer by likaaka(51)

Question 221453: Give exact and approximate solutions to three decimal places. x^2-5x+5=0. Find the x-intercepts.
What are the solutions?
What are the x-intercepts?
Thank you!
Click here to see answer by jim_thompson5910(28715)

Question 221485: Determine the nature of the solutions of the equation x^2-18=0. Does it have 1 solution, 2 imaginary solutions, or 2 real solutions?
Thank you!
Click here to see answer by user_dude2008(1861)

Question 221483: Determine the nature of the solutions of the equation. y^2=(1/5)y+(2/3); does it have 2 real solutions, 2 nonreal solutions, or 1 real solution?
Thank you!
Click here to see answer by user_dude2008(1861)

Question 221482: Give exact and approximate solutions to three decimal places.
y^2-4y+4=9
Thank you!
Click here to see answer by jim_thompson5910(28715)

Question 221482: Give exact and approximate solutions to three decimal places.
y^2-4y+4=9
Thank you!
Click here to see answer by RAY100(1637)

Question 221480: Find and label the vertex and the line of symmetry. Graph the function -3(x+3)2
Thank you!
Click here to see answer by user_dude2008(1861)

Question 221511: give exact and approximate solutions to three decimal places

x^2+5x-3=0
Click here to see answer by jim_thompson5910(28715)

Question 221522: Find and label the vertex and the line of symmetry.
f(x)=(1/5)x^2
Vertex= _______
Line of Symmetry = ________
THANKS
Click here to see answer by user_dude2008(1861)

Question 221522: Find and label the vertex and the line of symmetry.
f(x)=(1/5)x^2
Vertex= _______
Line of Symmetry = ________
THANKS
Click here to see answer by stanbon(57967)

Question 221521: ive tried this plenty of times i get stuck because i know how to solve the problom when there are two vairibles but not three please helpp! i have a test on this tommorow
the question on my worksheet is write a quadratic function in standard form whose graph passes through the given points:
(1,-2),(-2,1),(3,6)
Click here to see answer by stanbon(57967)

Question 221499: 1/s+a + 1/s+b = 1/c solve for s
Click here to see answer by RAY100(1637)

Question 221658: Hi, I am having a problem with a question that reads the following: Use the quadratic formula to solve the equation for x in terms of y. 8x^2-8xy=6(1-y^2)=0
Thanks in advance.
Click here to see answer by stanbon(57967)

Question 221721: A ball is thrown vertically upward from the Leaning Tower of Pisa (176 feet high)with an initial velocity of 96 feet per second. The height of the ball is described by the formula -16t^2 + 96t +176. How long will it take the ball to hit the ground?
Please help I have tried to solve this several different ways and none of them are coming out to anything that makes sense. The example in the textbook shows it starting to be solved by factoring out -16 , but I can't see were it can go from there?
Click here to see answer by rapaljer(4667)

Question 221882: Two hundred and forty meters of fencing is available to enclose a rectangular playground. What should be the dimensions of the playground to maximize the area?
Click here to see answer by solver91311(17077)

Question 221675: Hi, I am having a problem with a question that reads the following: Use the quadratic formula to solve the equation for x in terms of y. 8x^2-8xy+6(1-y^2)=0
Thanks in advance.

Click here to see answer by ankor@dixie-net.com(15746)

Question 221970: Please solve using complete the square. My answer does not match the book:
2x^2+8x+1=0
2x^2+8x=-1
2(x^2+4x)=-1
2{(x^2+4x+(4/2)^2}=-1+2times(4/2)^2
2(x^2+4x+4)=7
2(x+2)^2=7
(x+2)^2=7/2
x+2=+or-square root of 7/2
x=-2+or-square root of 7/2
The answer book states x=-2+or-the square root of 14/2
Click here to see answer by solver91311(17077)

Question 222034: hi, my name is sherry....please help me. I really hate word problems.
A bank invested $480,000 last year in mutual funds. th consevativefund earned 8% simpl interest. the growth fund earned 12% simple interest.At he end of theyear , the bank had earned $49,000 from these mutual funds. how much did it invest in each fund? here is what i got for the first part
what is the amount invested at 12% in growth fund?answer; 5880
what is the amount invested at 8% in the conservative fund? answer:3920
i divided each question by 49,ooo and use the percent in te question. is this right? thank you so much
Click here to see answer by rfer(12730)

Question 222086: A 15 inch television set has a width of 12 inches. What is its' height?
Thank you!
Click here to see answer by rfer(12730)

Question 222088: Factor. 77-18w+w^2
Thanks!
Click here to see answer by checkley77(12569)

Question 222088: Factor. 77-18w+w^2
Thanks!
Click here to see answer by rapaljer(4667)

Question 222087: Factor the trinomial: v^3-2v^2-24v
Thank you!
Click here to see answer by checkley77(12569)

Question 222314: Factor completely

Click here to see answer by nerdybill(7008)

Question 222317: For f(x)=5xsquared-8x+2, find f(3h).
What is the question asking from me? What are the steps to solving?
Click here to see answer by solver91311(17077)

Question 222372: Please help me solve this problem:
Find the value of k.
; one root is the negative reciprocal of the other.
Can I also ask for the solution?
Thank you very much.
Click here to see answer by Edwin McCravy(8999)

Question 222410: Find all numbers for which the rational expression is undefined.
q^3-2q / q^2-4
Click here to see answer by rapaljer(4667)

Question 222409: Factor completely. 4w^2+9-12w
thank you
Click here to see answer by rapaljer(4667)

Question 222408: Solve for x. 4x(x-2)-5x(x-1)=2
Thank
Click here to see answer by rapaljer(4667)

Question 222402: Solve. b^2-2b-35=0
Thanks!
Click here to see answer by jim_thompson5910(28715)

Question 222400: Solve. 6x^4-19x^2+15=0
Thanks!
Click here to see answer by jim_thompson5910(28715)

Question 222398: What is the value of the discriminant?
3x^2+10x-7=0
Also, what is the nature of the solutions? Are there 2 real solutions, 1 real solution, or 2 imaginary solutions?
Click here to see answer by jim_thompson5910(28715)

Question 222403: Subtract. Simplify by collecting like radical terms if possible.
9 square root of 75 - 4 square root of 3
Click here to see answer by RAY100(1637)

Question 222390: how do i solve by factoring, x squared-13x+40=0
Click here to see answer by drj(1380)

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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, 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