Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 309305: factorize 6ab-24bx=?
Click here to see answer by stanbon(57219)

Question 309439: Can you factor 3x^2+25x-14 please?
Click here to see answer by Fombitz(13828)

Question 309440: a frog leaps off the ground at 2 feet per second; how many seconds does it take the frog to land
Click here to see answer by nerdybill(6948)

Question 309446: What is the square root of 36y^5?
Click here to see answer by JBarnum(2044)

Question 309481: Complete the square to make each binomial a perfect square trinomial
x^2-12x
Click here to see answer by richwmiller(9135)

Question 309511: solve.
w^4-4w^2-2=0
what is the solution.
W=
(type an exact answer using radicals if needed, use commas to seperate answers
Click here to see answer by Fombitz(13828)

Question 309616: For the Equation 4X^2-100=0, did I do my work right? 4X^2-100=0
+100 +100
4X^2=100
/4 /4
X^2=25
My teacher said that if it was a prime number or if it had no perfect square you could leave it as it is is this true and is my answer right? Thank you

Click here to see answer by checkley77(12569)

Question 309686: I just want to make sure I got this one right.
2x^2-7x=4
2x^2-7x-4=0
(2x+4)(7x-4)=0
2x+4=0 7x-4=0
2x=-4
x=-1/2 x=4
Can any body tell me if I got it right.
Click here to see answer by Alan3354(30958)

Question 309684: Solve the following quadratic equation
3v^2+4v-2=0
Having trouble really with this one PLEASE HELP!!!
Click here to see answer by jim_thompson5910(28476)

Question 309683: Solve the following quadratic equation
x^2-2x+1=0
Click here to see answer by jim_thompson5910(28476)

Question 309682: N(x)=0.4x^2+8.8x+11
x=days
Peak sales of tickets will be on what day and how many tickets are sold that day?
Click here to see answer by ankor@dixie-net.com(15623)

Question 309681: The width is 2 ft less than the length. The area is 8ft^2. What is the length and width?
Click here to see answer by alicealc(281)

Question 309878: what is the range and domain of
Click here to see answer by stanbon(57219)

Question 309871: z^2 + 15z + 36
Click here to see answer by mananth(12270)

Question 309975: I need help to find all real or imaginary solutions to each equation.
-x^2 + x + 12 = 0
Click here to see answer by jim_thompson5910(28476)

Question 310072: The equation is: y = 1x2+4x+3
The parabola graph puts it as: x= -1, -3.
The equation didn't have negative numbers in it in the first place. So why does the graph make them negatives?
Click here to see answer by Alan3354(30958)

Question 310094: Use the following quadratic equation to complete parts a and b below. You must show all work.
x2 + 4x - 21 = 0
a. Solve by factoring.
b. Solve using the quadratic formula
Click here to see answer by Alan3354(30958)

Question 310359: Use the quadratic Formula to solve this equation. Round to the nearest tenth. Show your work.:
A rectangular courtyard covers 20ft squared. The courtyard is 3 ft longer than it is wide. Find the dimensions of the courtyard.
Click here to see answer by JBarnum(2044)

Question 310344: I am trying to solve the following problem:
height of a kicked ball is modeled using
The question I need to solve is this:
If the nearest person is 5 ft horizontally from the point of impact how high must that person reach in order to block the punt?
Click here to see answer by solver91311(16868)

Question 310473: I am having trouble with square roots. Can you help me with these problems, please?
1. Multiply -- sqrt 3/5 x sqrt 6/4 =
2. Simplify -- sqrt 27/p^2 =
3. Divide -- sqrt 9x^5y divided by sqrt 12x^2y^6 =
4. Divide -- 2 divided by sqrt 3 plus sqrt 6 =
Thank you.
Click here to see answer by stanbon(57219)

Question 310555: Examine the following equation y=-2x^2+20x+1
What shape does the graph of this equation make?
Does the graph open up or down?
Click here to see answer by Fombitz(13828)

Question 310556: Find the coordinates of the midpoint for the following equation y=-2x^2+20x+1 The answer needs to be in the form (x-coordinate, y-coordinate)
Click here to see answer by Fombitz(13828)

Question 310593: if x^2 -3x - 2 = 0 ,then what is the value of 2x^2 - 6x + 11 ?
Click here to see answer by Fombitz(13828)

Question 310630: How long does it take to get a response back?
Click here to see answer by stanbon(57219)

Question 310685: Under what circumstances would prefer using factoring, completing the square and quadratic formula over each other?
Click here to see answer by solver91311(16868)

Question 310688: Hello I have a problem solving this parabola question.The path of a cliff diver as he dives into a lake ,is given by this eqaution,y=-(x-10)(SQAURED)+75,where y metres is the diver's height above the water and,x metres is the horisontal distance travelled by the diver.What is the maximum height the diver is above the water?
Click here to see answer by Fombitz(13828)

Question 310424: Suppose you are an event coordinator for a large performance theater. One of the hottest new Broadway musicals has started to tour and your city is the first stop on the tour. You need to supply information about projected ticket sales to the box office manager. The box office manager uses this information to anticipate staffing needs until the tickets sell out. You provide the manager with a quadratic equation that models the expected number of ticket sales for each day x. ( is the day tickets go on sale). Tickets=-0.3x^2+10x+12
Does the graph of this equation open up or down? Explain how you determine this.
The graph of this equation goes down because -0.3<0.

b. Describe what happens to the tickets sales as time passes.

c. Use the quadratic equation to determine the last day that tickets will be sold. Show work!
Note. Write your answer in terms of the number of days after ticket sales begin.

d. Will tickets peak or be at a low during the middle of the sale? Explain how you know.

e. After how many days will the peak or low occur? Show work!

f. How many tickets will be sold on the day when the peak or low occurs? Show work!

g. What is the point of the vertex? How does this number relate to your answers in parts e. and f? Explain.

h. How many solutions are there to the equation ? Explain how you know.

i. What do the solutions represent? Is there a solution that does not make sense? If so, in what ways does the solution not make sense? Explain.

Click here to see answer by ankor@dixie-net.com(15623)

Question 310862: THE STUDENT COUNCIL AT RAHKENROLE HIGH SCHOOL IS PLANNING A CONCERT. THEY'VE HIRED THE KNOX MOUNTAIN BOYS, A POPULAR LOCAL BAND, FOR $340. A POLL AMONG THE STUDENTS HAS SHOWN THAT IF TICKETS COST $5, 140 PEOPLE WILL COME TO THE CONCERT. FOR EVERY DOLLAR THE TICKET PRICE GOES UP, 10 FEWER PEOPLE WILL COME, AND FOR EVERY DOLLAR IT GOES DOWN, 10 MORE PEOPLE WILL COME.
THE OTHER GROUP WANTS TO RAISE MONEY ON THE CONCERT. HOW MUCH SHOULD HEY CHARGE PER TICKET TO MAXIMIZE THE AMOUNT OF MONEY THEY RAISE? HOW MUCH WILL THEY RAISE AT THAT PRICE?
PLEASE HELP ME, I WOULD REALLY APPRECIATE IT IF YOU DID. PLEASE SOLVE THIS ALGEBRAICALLY AND NOT GUESS AND TEST.
Click here to see answer by stanbon(57219)

Question 310917: If one solution to the equation x^2 – 3x + k = 0 is 4, then what is the other solution?
a) -4 b) -1 c) 1
d) 4 e) cannot be determined from the information given

Click here to see answer by Edwin McCravy(8879)

Question 311032: a square swimming pool with a side measure of 16 m is to be surrounded by a rubberized floor covering of uniform width. if the area of the floor covering equals the area of the pool, find the width of the rubberized covering.
Click here to see answer by texttutoring(324)

Question 311054: what 2 formulas come from x=-b +/- square root of b2-4ac over 2a

Click here to see answer by JBarnum(2044)

Question 311056: Use the following quadratic equation to answer questions a and b below. must show all work
x2 + 3x - 18 = 0
a. Solve by factoring.
b. Solve using the quadratic formula.
Click here to see answer by Fombitz(13828)

Question 311064: how do u solve 8X^2+11X-10
Click here to see answer by Alan3354(30958)

Question 311064: how do u solve 8X^2+11X-10
Click here to see answer by solver91311(16868)

Question 311083: Can you help me solve this problem:
t^2 + 4 = 0
Click here to see answer by checkley77(12569)

Question 311086: Can you help me solve this problem:
$2500 grows to $2704 in 2 years. Use the formula A = P(1 + r)^t to find the interest rate.
Click here to see answer by solver91311(16868)

Question 311223: what is the value of y when x=2 for the equation 3x squared minus 7x+17=y?
Click here to see answer by solver91311(16868)

Question 311225: how do i work out x+11=y and 7x-49=y? (two differwnt equations)
Click here to see answer by nyc_function(2733)

Question 311290: (x+3)^2+27x+60=0
Click here to see answer by Fombitz(13828)

Question 311290: (x+3)^2+27x+60=0
Click here to see answer by fractalier(2101)

Question 311262: what is the answer to this problem?
2x+5y=-16
y=-20-6x
Click here to see answer by fractalier(2101)

Question 311192: Please Help Me!
1. The path of a ball thrown into the air from a height of 3 feet is given by y=-1/8x^2+x+3, where y is the height of the ball in feet at the horizontal distance of x feet from the thrower.
a. How high is the ball at its maximum height?
b. estimate the horizontal distance the ball traveled before hitting the ground.
Click here to see answer by ankor@dixie-net.com(15623)

Question 311377: Can you please explain to me how to do the following? Give exact and approximate solutions to three decimal places (x-9)^2=12
Click here to see answer by fractalier(2101)

Question 311425: Solve
11( x - 2) + ( x - 5)= (x + 2)( x + 6)
Click here to see answer by vleith(2825)

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